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Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Measurements for Hydrogen Storage Materials  

Science Conference Proceedings (OSTI)

Measurements for Hydrogen Storage Materials. Summary: ... Hydrogen is promoted as petroleum replacement in the Hydrogen Economy. ...

2013-07-02T23:59:59.000Z

2

Gas storage materials, including hydrogen storage materials  

DOE Patents (OSTI)

A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

2013-02-19T23:59:59.000Z

3

Nanostructured materials for hydrogen storage  

DOE Patents (OSTI)

A system for hydrogen storage comprising a porous nano-structured material with hydrogen absorbed on the surfaces of the porous nano-structured material. The system of hydrogen storage comprises absorbing hydrogen on the surfaces of a porous nano-structured semiconductor material.

Williamson, Andrew J. (Pleasanton, CA); Reboredo, Fernando A. (Pleasanton, CA)

2007-12-04T23:59:59.000Z

4

Hydrogen Storage Materials Database Demonstration  

NLE Websites -- All DOE Office Websites (Extended Search)

| Fuel Cell Technologies Program Source: US DOE 4/25/2011 eere.energy.gov | Fuel Cell Technologies Program Source: US DOE 4/25/2011 eere.energy.gov Hydrogen Storage Materials Database Demonstration FUEL CELL TECHNOLOGIES PROGRAM Ned Stetson Storage Tech Team Lead Fuel Cell Technologies Program U.S. Department of Energy 12/13/2011 Hydrogen Storage Materials Database Marni Lenahan December 13, 2011 Database Background * The Hydrogen Storage Materials Database was built to retain information from DOE Hydrogen Storage funded research and make these data more accessible. * Data includes properties of hydrogen storage materials investigated such as synthesis conditions, sorption and release conditions, capacities, thermodynamics, etc. http://hydrogenmaterialssearch.govtools.us Current Status * Data continues to be collected from DOE funded research.

5

Materials for Hydrogen Production, Separation, and Storage  

Science Conference Proceedings (OSTI)

Mar 13, 2012 ... Materials in Clean Power Systems VII: Clean Coal-, Hydrogen ... and Fuel Cells: Materials for Hydrogen Production, Separation, and Storage .... Mixed Conducting Molten Salt Electrolyte for Na/NiCl2 Cell: Tannaz Javadi1;...

6

NREL Advances Spillover Materials for Hydrogen Storage (Fact...  

NLE Websites -- All DOE Office Websites (Extended Search)

8 * December 2010 NREL Advances Spillover Materials for Hydrogen Storage Project: Hydrogen Sorption Center of Excellence - Hydrogen Sorption via Spillover Team: Hydrogen Storage...

7

Combinatorial Approaches for Hydrogen Storage Materials (presentation)  

NLE Websites -- All DOE Office Websites (Extended Search)

approaches for approaches for hydrogen storage materials Leonid Bendersky Materials Science and Engineering Laboratory NIST, Gaithersburg MD Contributors: G. Downing, E. Mackey, R. Paul, R. Greenberg (NIST:CSTL); L. Cook, M. Green (NIST:MSEL) R. Cavicchi (NIST:CSTL); I. Takeuchi, H. Oguchi (UMd) Two Main Challenges to Combinatorial Analysis of Hydrogen Storage Materials Design and fabrication of appropriate materials libraries Rapid, quantitative measurements of hydrogenation

8

Porous polymeric materials for hydrogen storage  

DOE Patents (OSTI)

A porous polymer, poly-9,9'-spirobifluorene and its derivatives for storage of H.sub.2 are prepared through a chemical synthesis method. The porous polymers have high specific surface area and narrow pore size distribution. Hydrogen uptake measurements conducted for these polymers determined a higher hydrogen storage capacity at the ambient temperature over that of the benchmark materials. The method of preparing such polymers, includes oxidatively activating solids by CO.sub.2/steam oxidation and supercritical water treatment.

Yu, Luping; Liu, Di-Jia; Yuan, Shengwen; Yang, Junbing

2013-04-02T23:59:59.000Z

9

LIGHT-WEIGHT NANOCRYSTALLINE HYDROGEN STORAGE MATERIALS  

DOE Green Energy (OSTI)

During Phase I of this SBIR Program, Advanced Materials Corporation has addressed two key issues concerning hydrogen storage: 1. We have conducted preliminary studies on the effect of certain catalysts in modifying the hydrogen absorption characteristics of nanocrystalline magnesium. 2. We have also conducted proof-of-concept design and construction of a prototype instrument that would rapidly screen materials for hydrogen storage employing chemical combinatorial technique in combination with a Pressure-Composition Isotherm Measurement (PCI) instrument. 3. Preliminary results obtained in this study approach are described in this report.

S. G. Sankar; B. Zande; R.T. Obermyer; S. Simizu

2005-11-21T23:59:59.000Z

10

NREL Advances Spillover Materials for Hydrogen Storage (Fact Sheet)  

DOE Green Energy (OSTI)

This fact sheet describes NREL's accomplishments in advancing spillover materials for hydrogen storage and improving the reproducible synthesis, long-term durability, and material costs of hydrogen storage materials. Work was performed by NREL's Chemical and Materials Science Center.

Not Available

2010-12-01T23:59:59.000Z

11

Hydrogen Storage  

Science Conference Proceedings (OSTI)

Oct 10, 2012 ... Energy Storage: Materials, Systems and Applications: Hydrogen Storage Program Organizers: Zhenguo "Gary" Yang, Pacific Northwest...

12

Porous polymeric materials for hydrogen storage  

SciTech Connect

Porous polymers, tribenzohexazatriphenylene, poly-9,9'-spirobifluorene, poly-tetraphenyl methane and their derivatives for storage of H.sub.2 prepared through a chemical synthesis method. The porous polymers have high specific surface area and narrow pore size distribution. Hydrogen uptake measurements conducted for these polymers determined a higher hydrogen storage capacity at the ambient temperature over that of the benchmark materials. The method of preparing such polymers, includes oxidatively activating solids by CO.sub.2/steam oxidation and supercritical water treatment.

Yu, Luping (Hoffman Estates, IL); Liu, Di-Jia (Naperville, IL); Yuan, Shengwen (Chicago, IL); Yang, Junbing (Westmont, IL)

2011-12-13T23:59:59.000Z

13

Porous polymeric materials for hydrogen storage  

DOE Patents (OSTI)

Porous polymers, tribenzohexazatriphenylene, poly-9,9'-spirobifluorene, poly-tetraphenyl methane and their derivatives for storage of H.sub.2 prepared through a chemical synthesis method. The porous polymers have high specific surface area and narrow pore size distribution. Hydrogen uptake measurements conducted for these polymers determined a higher hydrogen storage capacity at the ambient temperature over that of the benchmark materials. The method of preparing such polymers, includes oxidatively activating solids by CO.sub.2/steam oxidation and supercritical water treatment.

Yu, Luping (Hoffman Estates, IL); Liu, Di-Jia (Naperville, IL); Yuan, Shengwen (Chicago, IL); Yang, Junbing (Westmont, IL)

2011-12-13T23:59:59.000Z

14

High Througput Combinatorial Techniques in Hydrogen Storage Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

THROUGHPUTCOMBINATORIAL TECHNIQUES IN HYDROGEN STORAGE MATERIALS R&D WORKSHOP U.S. Department of Energy Office of Hydrogen, Fuel Cells and Infrastructure Technologies June 26,...

15

ALUMINUM HYDRIDE: A REVERSIBLE STORAGE MATERIAL FOR HYDROGEN STORAGE  

DOE Green Energy (OSTI)

One of the challenges of implementing the hydrogen economy is finding a suitable solid H{sub 2} storage material. Aluminium (alane, AlH{sub 3}) hydride has been examined as a potential hydrogen storage material because of its high weight capacity, low discharge temperature, and volumetric density. Recycling the dehydride material has however precluded AlH{sub 3} from being implemented due to the large pressures required (>10{sup 5} bar H{sub 2} at 25 C) and the thermodynamic expense of chemical synthesis. A reversible cycle to form alane electrochemically using NaAlH{sub 4} in THF been successfully demonstrated. Alane is isolated as the triethylamine (TEA) adduct and converted to unsolvated alane by heating under vacuum. To complete the cycle, the starting alanate can be regenerated by direct hydrogenation of the dehydrided alane and the alkali hydride (NaH) This novel reversible cycle opens the door for alane to fuel the hydrogen economy.

Zidan, R; Christopher Fewox, C; Brenda Garcia-Diaz, B; Joshua Gray, J

2009-01-09T23:59:59.000Z

16

Microporous Metal Organic Materials for Hydrogen Storage  

DOE Green Energy (OSTI)

We have examined a number of Metal Organic Framework Materials for their potential in hydrogen storage applications. Results obtained in this study may, in general, be summarized as follows: (1) We have identified a new family of porous metal organic framework materials with the compositions M (bdc) (ted){sub 0.5}, {l_brace}M = Zn or Co, bdc = biphenyl dicarboxylate and ted = triethylene diamine{r_brace} that adsorb large quantities of hydrogen ({approx}4.6 wt%) at 77 K and a hydrogen pressure of 50 atm. The modeling performed on these materials agree reasonably well with the experimental results. (2) In some instances, such as in Y{sub 2}(sdba){sub 3}, even though the modeling predicted the possibility of hydrogen adsorption (although only small quantities, {approx}1.2 wt%, 77 K, 50 atm. hydrogen), our experiments indicate that the sample does not adsorb any hydrogen. This may be related to the fact that the pores are extremely small or may be attributed to the lack of proper activation process. (3) Some samples such as Zn (tbip) (tbip = 5-tert butyl isophthalate) exhibit hysteresis characteristics in hydrogen sorption between adsorption and desorption runs. Modeling studies on this sample show good agreement with the desorption behavior. It is necessary to conduct additional studies to fully understand this behavior. (4) Molecular simulations have demonstrated the need to enhance the solid-fluid potential of interaction in order to achieve much higher adsorption amounts at room temperature. We speculate that this may be accomplished through incorporation of light transition metals, such as titanium and scandium, into the metal organic framework materials.

S. G. Sankar; Jing Li; Karl Johnson

2008-11-30T23:59:59.000Z

17

news and views A key issue for hydrogen storage materi-  

E-Print Network (OSTI)

news and views A key issue for hydrogen storage materi- als is that the hydrogenation and dehydro be possible to discover stable hydrogen hydrates with higher storage Hydrogen Posture Plan www.eere.energy.gov/hydrogenandfuelcells/pdfs/ hydrogen_posture_plan.pdf 7. Kuhs, W

Palumbi, Stephen

18

Hydrogen Storage  

Science Conference Proceedings (OSTI)

Applied Neutron Scattering in Engineering and Materials Science Research: Hydrogen Storage Sponsored by: Metallurgical Society of the Canadian Institute of...

19

Executive Summaries Hydrogen Storage Materials Centers of Excellence  

E-Print Network (OSTI)

of Energy April 2012 #12;2 #12;3 Primary Authors: Chemical Hydrogen Storage (CHSCoE): Kevin Ott, Los of the three Materials Centers of Excellence and the Department of Energy Hydrogen Storage Team in the Office hydrogen storage technologies that offer high specific energy and energy density at acceptable costs

20

Hydrogen storage materials and method of making by dry homogenation  

DOE Green Energy (OSTI)

Dry homogenized metal hydrides, in particular aluminum hydride compounds, as a material for reversible hydrogen storage is provided. The reversible hydrogen storage material comprises a dry homogenized material having transition metal catalytic sites on a metal aluminum hydride compound, or mixtures of metal aluminum hydride compounds. A method of making such reversible hydrogen storage materials by dry doping is also provided and comprises the steps of dry homogenizing metal hydrides by mechanical mixing, such as be crushing or ball milling a powder, of a metal aluminum hydride with a transition metal catalyst. In another aspect of the invention, a method of powering a vehicle apparatus with the reversible hydrogen storage material is provided.

Jensen, Craig M. (Kailua, HI); Zidan, Ragaiy A. (Honolulu, HI)

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Fuel Cell Technologies Office: Hydrogen Storage Materials Requirements...  

NLE Websites -- All DOE Office Websites (Extended Search)

(Text Version) to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Storage Materials Requirements (Text Version) on Facebook Tweet about Fuel Cell Technologies...

22

Fuel Cell Technologies Office: Hydrogen Storage Materials Database...  

NLE Websites -- All DOE Office Websites (Extended Search)

(Text Version) to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Storage Materials Database Demonstration Webinar (Text Version) on Facebook Tweet about Fuel...

23

High Throughput/Combinatorial Screening of Hydrogen Storage Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

Workshop HIGH THROUGHPUTCOMBINATORIAL SCREENING OF HYDROGEN STORAGE MATERIALS June 26, 2007 Tom Boussie Symyx Technologies Symyx develops and applies proprietary high-throughput...

24

Combinatorial Approach for Hydrogen Storage Materials (presentation)  

NLE Websites -- All DOE Office Websites (Extended Search)

Approach for Approach for Hydrogen Storage Materials Grigorii Soloveichik, John Lemmon, Jun Cui, Yan Gao, Tom Raber, Job Rijssenbeek, Gosia Rubinzstajn, J.C. Zhao 2 Outline Approach: Parallel synthesis accompanied by high throughput screening for a desired property. - Methods * Preparation/parallel synthesis * Analytical techniques * Scale-up - Selected results * Al-Li-Si system * Al-Mg-Ti system * AlH 3 + Si * Mg(BH 4 ) 2 - Summary 3 Down-selection of the combi process High energy 96-well Shaker Production of multiple compositions HTS Analytical Tools Thermography ToF-SIMS Co-sputtering Diffusion multiples WO 3 sensor 4 -3.9dC 3.7dC -2 0 2 Hydrogen Sorption in Diffusion Multiples Traditional DM w/ LaNi several new concepts. Activation 80 °C / 100psi H 2 Cycling 80 °C / 100psi H 2 Na Mg Na Na Al Na Li Li Na Vial 1

25

Hydrogen Storage Materials Requirements to Meet the 2017 On Board Hydrogen Storage Technical Targets  

NLE Websites -- All DOE Office Websites (Extended Search)

Materials Materials Requirements to Meet the 2017 On Board Hydrogen Storage Technical Targets Donald Anton Savannah River National Laboratory Troy Semelsberger Don Siegel Los Alamos National Laboratory University of Michigan Bruce Hardy Kriston Brooks Savannah River National Laboratory Pacific Northwest National Laboratory Materials Requirements Webinar June 25, 2013 2 Webinar Objective Give guidance to the materials development community as to the important materials characteristic for both adsorbent and chemical hydrides required to meet the DoE Technical Targets for Onboard Hydrogen Storage Systems This work has been fully funded by the U.S. Department of Energy, through the Office of Energy Efficiency and Renewable Energy, Fuel Cell Technologies Office 3

26

Summary Report from Theory Focus Session on Hydrogen Storage Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Theory Focus Session on Hydrogen Storage Materials DOE Hydrogen Program Assessment of Modeling Needs for Hydrogen Storage This report provides a summary of feedback from co-organizers, speakers and participants of the Department of Energy's (DOE) Theory Focus Session on Hydrogen Storage Materials, held Thursday, May 18, 2006, Crystal City, VA, in conjunction with the DOE Hydrogen Program Annual Merit Review, May 16-19, 2006. Session co-organizers: Chris Wolverton (Ford), Karl Johnson (University of Pittsburgh), Maciek Gutowski (Pacific Northwest National Laboratory) Goal of focus session: Identify critical areas, key barriers and gaps in current theory/modeling approaches for hydrogen storage materials and technologies Role of modeling and simulation in design of H

27

Down Select Report of Chemical Hydrogen Storage Materials, Catalysts, and Spent Fuel Regeneration Processes - May 2008  

Fuel Cell Technologies Publication and Product Library (EERE)

Chemical Hydrogen Storage Center of Excellence FY2008 Second Quarter Milestone Report: Technical report describing assessment of hydrogen storage materials and progress towards meeting DOEs hydrogen

28

Electron Charged Graphite-based Hydrogen Storage Material  

DOE Green Energy (OSTI)

The electron-charge effects have been demonstrated to enhance hydrogen storage capacity using materials which have inherent hydrogen storage capacities. A charge control agent (CCA) or a charge transfer agent (CTA) was applied to the hydrogen storage material to reduce internal discharge between particles in a Sievert volumetric test device. GTI has tested the device under (1) electrostatic charge mode; (2) ultra-capacitor mode; and (3) metal-hydride mode. GTI has also analyzed the charge distribution on storage materials. The charge control agent and charge transfer agent are needed to prevent internal charge leaks so that the hydrogen atoms can stay on the storage material. GTI has analyzed the hydrogen fueling tank structure, which contains an air or liquid heat exchange framework. The cooling structure is needed for hydrogen fueling/releasing. We found that the cooling structure could be used as electron-charged electrodes, which will exhibit a very uniform charge distribution (because the cooling system needs to remove heat uniformly). Therefore, the electron-charge concept does not have any burden of cost and weight for the hydrogen storage tank system. The energy consumption for the electron-charge enhancement method is quite low or omitted for electrostatic mode and ultra-capacitor mode in comparison of other hydrogen storage methods; however, it could be high for the battery mode.

Dr. Chinbay Q. Fan; D Manager

2012-03-14T23:59:59.000Z

29

Analyses of Hydrogen Storage Materials and On-Board Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Analyses of Hydrogen Hydrogen Analyses of Hydrogen Storage Materials and On Storage Materials and On - - Board Systems Board Systems TIAX LLC 15 Acorn Park Cambridge, MA 02140-2390 Tel. 617- 498-6108 Fax 617-498-7054 www.TIAXLLC.com Reference: D0268 © 2007 TIAX LLC Hydrogen Delivery Analysis Meeting May 8, 2007 Stephen Lasher Kurtis McKenney Yong Yang Bob Rancatore Stefan Unnasch Matt Hooks This presentation does not contain any proprietary or confidential information Overview 1 SL/042007/D0268 ST32_Lasher_H2 Storage_v1.ppt Start date: June 2004 End date: Sept 2009 41% Complete Timeline Barriers addressed B. Cost C. Efficiency K. System Life Cycle Assessments Barriers Total project funding DOE share = $1.5M No cost share FY06 = $275k FY07 = $300k (plan) Budget Argonne and other National

30

Recommended Best Practices for the Characterization of Storage Properties of Hydrogen Storage Materials  

Fuel Cell Technologies Publication and Product Library (EERE)

This is a reference guide to common methodologies and protocols for measuring critical performance properties of advanced hydrogen storage materials. It helps users to communicate clearly the relevan

31

Fundamental Studies of Diffusion and Reactions in Hydrogen Storage Materials  

E-Print Network (OSTI)

energy production and use [1,2], but adequate hydrogen storageEnergy Fundamental studies of diffusion and reactions in hydrogen storageEnergy 010 "Fundamental studies of diffusion and reactions in hydrogen storage

Van de Walle, Chris G; Peles, Amra; Janotti, Anderson; Wilson-Short, Gareth

2008-01-01T23:59:59.000Z

32

DOE Theory Focus Session on Hydrogen Storage Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

U.S. Department of Energy U.S. Department of Energy Theory Focus Session on Hydrogen Storage Materials DOE Hydrogen Program Basic Energy Sciences (Office of Science) and Office of Hydrogen, Fuel Cells and Infrastructure Technologies (Energy Efficiency and Renewable Energy) Thursday, May 18, 2006 (1 pm to 6 pm) Crystal Gateway Marriott, Crystal City, VA (In conjunction with the DOE Hydrogen Program Annual Merit Review, May 16-19) Co-organizers: Chris Wolverton (Ford), Karl Johnson (U. of Pittsburgh), Maciek Gutowski (Pacific Northwest National Laboratory) DOE Contacts: Sunita Satyapal and Dale Koelling Objectives: * Identify critical areas, key barriers and gaps in current theory/modeling approaches for hydrogen storage materials and technologies * Provide an overview of current state of the art and most recent technical progress

33

Thermodynamically Tuned Nanophase Materials for reversible Hydrogen storage  

DOE Green Energy (OSTI)

This program was devoted to significantly extending the limits of hydrogen storage technology for practical transportation applications. To meet the hydrogen capacity goals set forth by the DOE, solid-state materials consisting of light elements were developed. Many light element compounds are known that have high capacities. However, most of these materials are thermodynamically too stable, and they release and store hydrogen much too slowly for practical use. In this project we developed new light element chemical systems that have high hydrogen capacities while also having suitable thermodynamic properties. In addition, we developed methods for increasing the rates of hydrogen exchange in these new materials. The program has significantly advanced (1) the application of combined hydride systems for tuning thermodynamic properties and (2) the use of nanoengineering for improving hydrogen exchange. For example, we found that our strategy for thermodynamic tuning allows both entropy and enthalpy to be favorably adjusted. In addition, we demonstrated that using porous supports as scaffolds to confine hydride materials to nanoscale dimensions could improve rates of hydrogen exchange by > 50x. Although a hydrogen storage material meeting the requirements for commercial development was not achieved, this program has provided foundation and direction for future efforts. More broadly, nanoconfinment using scaffolds has application in other energy storage technologies including batteries and supercapacitors. The overall goal of this program was to develop a safe and cost-effective nanostructured light-element hydride material that overcomes the thermodynamic and kinetic barriers to hydrogen reaction and diffusion in current materials and thereby achieve > 6 weight percent hydrogen capacity at temperatures and equilibrium pressures consistent with DOE target values.

Ping Liu; John J. Vajo

2010-02-28T23:59:59.000Z

34

Materials for Hydrogen Production, Storage, and Distribution  

Science Conference Proceedings (OSTI)

Feb 16, 2010 ... Co-Production of Pure Hydrogen and Electricity from Coal Syngas via the .... and plastic deformations in the crack tip energy rate formulate.

35

Hydrogen Storage Materials Workshop Proceedings Workshop, October...  

NLE Websites -- All DOE Office Websites (Extended Search)

Research (USCAR) Southfield, MI Sponsored by the U.S. Department of Energy Office of Hydrogen, Fuel Cells and Infrastructure Technologies Table of Contents A A c c k k n n o o w w...

36

Analyses of HydrogenAnalyses of Hydrogen Storage Materials and OnStorage Materials and On--  

E-Print Network (OSTI)

Excluded from DOE Cost Estimate OEM ­ Original Equipment Manufacturer G&A ­ General and Administration Manufacturing Processes and Equipment ·Determine Material and Processing Costs ·Develop Bulk Cost Assumptions basis On-Board Cost Estimate Estimate Bill-of-Material factory costs for the on-board storage system

37

Boron Based Materials for Hydrogen Storage  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2012. Symposium, Boron, Boron Compounds, and Boron Nanomaterials: Structure, Properties,...

38

ALUMINUM HYDRIDE: A REVERSIBLE MATERIAL FOR HYDROGEN STORAGE  

DOE Green Energy (OSTI)

Hydrogen storage is one of the challenges to be overcome for implementing the ever sought hydrogen economy. Here we report a novel cycle to reversibly form high density hydrogen storage materials such as aluminium hydride. Aluminium hydride (AlH{sub 3}, alane) has a hydrogen storage capacity of 10.1 wt% H{sub 2}, 149 kg H{sub 2}/m{sup 3} volumetric density and can be discharged at low temperatures (< 100 C). However, alane has been precluded from use in hydrogen storage systems because of the lack of practical regeneration methods. The direct hydrogenation of aluminium to form AlH{sub 3} requires over 10{sup 5} bars of hydrogen pressure at room temperature and there are no cost effective synthetic means. Here we show an unprecedented reversible cycle to form alane electrochemically, using alkali metal alanates (e.g. NaAlH{sub 4}, LiAlH{sub 4}) in aprotic solvents. To complete the cycle, the starting alanates can be regenerated by direct hydrogenation of the dehydrided alane and the alkali hydride being the other compound formed in the electrochemical cell. The process of forming NaAlH{sub 4} from NaH and Al is well established in both solid state and solution reactions. The use of adducting Lewis bases is an essential part of this cycle, in the isolation of alane from the mixtures of the electrochemical cell. Alane is isolated as the triethylamine (TEA) adduct and converted to pure, unsolvated alane by heating under vacuum.

Zidan, R; Christopher Fewox, C; Brenda Garcia-Diaz, B; Joshua Gray, J

2009-01-09T23:59:59.000Z

39

ALUMINUM HYDRIDE: A REVERSIBLE MATERIAL FOR HYDROGEN STORAGE  

DOE Green Energy (OSTI)

Hydrogen storage is one of the greatest challenges for implementing the ever sought hydrogen economy. Here we report a novel cycle to reversibly form high density hydrogen storage materials such as aluminium hydride. Aluminium hydride (AlH{sub 3}, alane) has a hydrogen storage capacity of 10.1 wt% H{sub 2}, 149 kg H{sub 2}/m{sup 3} volumetric density and can be discharged at low temperatures (< 100 C). However, alane has been precluded from use in hydrogen storage systems because of the lack of practical regeneration methods; the direct hydrogenation of aluminium to form AlH{sub 3} requires over 10{sup 5} bars of hydrogen pressure at room temperature and there are no cost effective synthetic means. Here we show an unprecedented reversible cycle to form alane electrochemically, using alkali alanates (e.g. NaAlH{sub 4}, LiAlH{sub 4}) in aprotic solvents. To complete the cycle, the starting alanates can be regenerated by direct hydrogenation of the dehydrided alane and the alkali hydride being the other compound formed in the electrochemical cell. The process of forming NaAlH{sub 4} from NaH and Al is well established in both solid state and solution reactions. The use of adducting Lewis bases is an essential part of this cycle, in the isolation of alane from the mixtures of the electrochemical cell. Alane is isolated as the triethylamine (TEA) adduct and converted to pure, unsolvated alane by heating under vacuum.

Fewox, C; Ragaiy Zidan, R; Brenda Garcia-Diaz, B

2008-12-31T23:59:59.000Z

40

Recommended Best Practices for the Characterization of Storage Properties of Hydrogen Storage Materials - Section 6 Thermal Properties of Hydrogen Storage Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

82 82 Recommended Best Practices for Characterizing Engineering Properties of Hydrogen Storage Materials. V150: February 4, 2013 Recommended Best Practices for Characterizing Engineering Properties of Hydrogen Storage Materials Karl J. Gross, H2 Technology Consulting LLC Bruce Hardy, of Savannah River National Laboratory We gratefully acknowledge assistance and financial support from the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Hydrogen Storage Program. National Renewable Energy Laboratory Contract No. 147388 Contract Technical Monitor: Dr. Philip Parilla H2 Technology Consulting, LLC kgross@h2techconsulting.com tel: (510) 468-7515 Table of Contents Page 2 of 282 Recommended Best Practices for Characterizing

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

DOE Hydrogen and Fuel Cells Program Record 9014: Hydrogen Storage Materials: 2007 … 2009  

NLE Websites -- All DOE Office Websites (Extended Search)

RCB (12/02/09) RCB (12/02/09) 1 DOE Hydrogen and Fuel Cells Program Record Record #: 9014 Date: December 02, 2009 Title: Hydrogen Storage Materials: 2007 - 2009 Originator: Robert C. Bowman, Ned T. Stetson Approved by: Sunita Satyapal Date: December 02, 2009 Item: This record summarizes the status of hydrogen (H 2 ) storage capacities that were determined for materials investigated between 2007 and 2009 within the Hydrogen Storage sub-program. Figure 1 shows the current status of materials development in terms of their gravimetric (in wt.%) capacities for just the materials themselves as a function of H 2 release or uptake temperature. The system targets for weight and temperatures as recently revised [1] for the 2015 and ultimate metrics are the areas enclosed by dashed lines in Figure 1. The arrow within the "windows"

42

Hydrogen Storage Properties of Magnesium Base Nanostructured Composite Materials  

DOE Green Energy (OSTI)

In this work, nanostructured composite materials have been synthesized using the mechanical alloying process. The new materials produced have been investigated by X-ray diffraction (XRD), transition electron microscope (TEM), scanning electron microscope (SEM) and electron energy dispersion spectrum (EDS) for their phase compositions, crystal structure, grain size, particle morphology and the distribution of catalyst element. Hydrogen storage capacities and the hydriding-dehydriding kinetics of the new materials have been measured at different temperatures using a Sieverts apparatus. It is observed that mechanical alloying accelerates the hydrogenation kinetics of the magnesium based materials at low temperature, but a high temperature must be provided to release the absorbed hydrogen from the hydrided magnesium based materials. It is believed that the dehydriding temperature is largely controlled by the thermodynamic configuration of magnesium hydride. Doping Mg-Ni nano/amorphous composite materials with lanthanum reduces the hydriding and dehydriding temperature. Although the stability of MgH2 can not be easily reduced by ball milling alone, the results suggest the thermodynamic properties of Mg-Ni nano/amorphous composite materials can be alternated by additives such as La or other effective elements. Further investigation toward understanding the mechanism of additives will be rewarded.

AU, M

2004-04-30T23:59:59.000Z

43

Ris-PhD-21(EN) Hydrogen Storage Materials with Focus  

E-Print Network (OSTI)

, are explored in relation to hydrogen storage. After briefly reviewing the major energy related problemsRisø-PhD-21(EN) Hydrogen Storage Materials with Focus on Main Group I-II Elements Anders Andreasen Risø National Laboratory Roskilde Denmark October 2005 #12;Hydrogen storage materials with focus

44

In Situ Neutron Powder Diffraction on Hydrogen Storage Materials  

Science Conference Proceedings (OSTI)

Abstract Scope, In order to pursue hydrogen storage research on powder samples ... A Case Study in Future Energy Challenges: Towards In Situ Hard X-

45

In-situ Chemistry Mapping of Hydrogen Storage Materials by ...  

Science Conference Proceedings (OSTI)

In the first case, sodium alanate based hydrogen storage is a vehicle-scale candidate system developed by Sandia/GM. Neutron scattering was used to...

46

Material synthesis and hydrogen storage of palladium-rhodium alloy.  

DOE Green Energy (OSTI)

Pd and Pd alloys are candidate material systems for Tr or H storage. We have actively engaged in material synthesis and studied the material science of hydrogen storage for Pd-Rh alloys. In collaboration with UC Davis, we successfully developed/optimized a supersonic gas atomization system, including its processing parameters, for Pd-Rh-based alloy powders. This optimized system and processing enable us to produce {le} 50-{mu}m powders with suitable metallurgical properties for H-storage R&D. In addition, we studied hydrogen absorption-desorption pressure-composition-temperature (PCT) behavior using these gas-atomized Pd-Rh alloy powders. The study shows that the pressure-composition-temperature (PCT) behavior of Pd-Rh alloys is strongly influenced by its metallurgy. The plateau pressure, slope, and H/metal capacity are highly dependent on alloy composition and its chemical distribution. For the gas-atomized Pd-10 wt% Rh, the absorption plateau pressure is relatively high and consistent. However, the absorption-desorption PCT exhibits a significant hysteresis loop that is not seen from the 30-nm nanopowders produced by chemical precipitation. In addition, we observed that the presence of hydrogen introduces strong lattice strain, plastic deformation, and dislocation networking that lead to material hardening, lattice distortions, and volume expansion. The above observations suggest that the H-induced dislocation networking is responsible for the hysteresis loop seen in the current atomized Pd-10 wt% Rh powders. This conclusion is consistent with the hypothesis suggested by Flanagan and others (Ref 1) that plastic deformation or dislocations control the hysteresis loop.

Lavernia, Enrique J. (University of California, Davis); Yang, Nancy Y. C.; Ong, Markus D. (Whithworth University, Spokane, WA)

2011-08-01T23:59:59.000Z

47

Modeling of Hydrogen Storage Materials: A Reactive Force Field for NaH  

E-Print Network (OSTI)

is the fall in potential energy surface during heating. Keywords: hydrogen storage, reactive force fieldModeling of Hydrogen Storage Materials: A Reactive Force Field for NaH Ojwang' J.G.O.*, Rutger van governing hydrogen desorption in NaH. During the abstraction process of surface molecular hydrogen charge

Goddard III, William A.

48

LANL Virtual Center for Chemical Hydrogen Storage: Chemical Hydrogen Storage Using Ultra-high Surface Area Main Group Materials  

SciTech Connect

The focus of the project was to design and synthesize light element compounds and nanomaterials that will reversibly store molecular hydrogen for hydrogen storage materials. The primary targets investigated during the last year were amine and hydrogen terminated silicon (Si) nanoparticles, Si alloyed with lighter elements (carbon (C) and boron (B)) and boron nanoparticles. The large surface area of nanoparticles should facilitate a favorable weight to volume ratio, while the low molecular weight elements such as B, nitrogen (N), and Si exist in a variety of inexpensive and readily available precursors. Furthermore, small NPs of Si are nontoxic and non-corrosive. Insights gained from these studies will be applied toward the design and synthesis of hydrogen storage materials that meet the DOE 2010 hydrogen storage targets: cost, hydrogen capacity and reversibility. Two primary routes were explored for the production of nanoparticles smaller than 10 nm in diameter. The first was the reduction of the elemental halides to achieve nanomaterials with chloride surface termination that could subsequently be replaced with amine or hydrogen. The second was the reaction of alkali metal Si or Si alloys with ammonium halides to produce hydrogen capped nanomaterials. These materials were characterized via X-ray powder diffraction, TEM, FTIR, TG/DSC, and NMR spectroscopy.

Susan M. Kauzlarich; Phillip P. Power; Doinita Neiner; Alex Pickering; Eric Rivard; Bobby Ellis, T. M.; Atkins, A. Merrill; R. Wolf; Julia Wang

2010-09-05T23:59:59.000Z

49

Hydrogen energy storage materials based on conducting polymers and their nanocomposites  

Science Conference Proceedings (OSTI)

Novel hydrogen energy storage materials based on electrically conducting polymers and their nanocompistes are reported. The synthesis and hydrogen adsorption properties of polypyrrole and its composites with nanotubes were investigated. The prepared ... Keywords: conducting polymers, hydrogen energy storage materials, nanocomposites, polypyrrole

Kurt E. Geckeler

2011-07-01T23:59:59.000Z

50

Hydrogen Storage  

Fuel Cell Technologies Publication and Product Library (EERE)

This 2-page fact sheet provides a brief introduction to hydrogen storage technologies. Intended for a non-technical audience, it explains the different ways in which hydrogen can be stored, as well a

51

Down Select Report of Chemical Hydrogen Storage Materials, Catalysts, and Spent Fuel Regeneration Processes  

DOE Green Energy (OSTI)

The DOE Hydrogen Storage Program is focused on identifying and developing viable hydrogen storage systems for onboard vehicular applications. The program funds exploratory research directed at identifying new materials and concepts for storage of hydrogen having high gravimetric and volumetric capacities that have the potential to meet long term technical targets for onboard storage. Approaches currently being examined are reversible metal hydride storage materials, reversible hydrogen sorption systems, and chemical hydrogen storage systems. The latter approach concerns materials that release hydrogen in endothermic or exothermic chemical bond-breaking processes. To regenerate the spent fuels arising from hydrogen release from such materials, chemical processes must be employed. These chemical regeneration processes are envisioned to occur offboard the vehicle.

Ott, Kevin; Linehan, Sue; Lipiecki, Frank; Aardahl, Christopher L.

2008-08-24T23:59:59.000Z

52

Executive Summaries for the Hydrogen Storage Materials Center of Excellence - Chemical Hydrogen Storage CoE, Hydrogen Sorption CoE, and Metal Hydride CoE  

NLE Websites -- All DOE Office Websites (Extended Search)

Executive Summaries Executive Summaries for the Hydrogen Storage Materials Centers of Excellence Chemical Hydrogen Storage CoE, Hydrogen Sorption CoE, and Metal Hydride CoE Period of Performance: 2005-2010 Fuel Cell Technologies Program Office of Energy Efficiency and Renewable Energy U. S. Department of Energy April 2012 2 3 Primary Authors: Chemical Hydrogen Storage (CHSCoE): Kevin Ott, Los Alamos National Laboratory Hydrogen Sorption (HSCoE): Lin Simpson, National Renewable Energy Laboratory Metal Hydride (MHCoE): Lennie Klebanoff, Sandia National Laboratory Contributors include members of the three Materials Centers of Excellence and the Department of Energy Hydrogen Storage Team in the Office of Energy Efficiency and Renewable Energy's Fuel Cell Technologies Program.

53

Low-Cost Precursors to Novel Hydrogen Storage Materials  

DOE Green Energy (OSTI)

From 2005 to 2010, The Dow Chemical Company (formerly Rohm and Haas Company) was a member of the Department of Energy Center of Excellence on Chemical Hydrogen Storage, which conducted research to identify and develop chemical hydrogen storage materials having the potential to achieve DOE performance targets established for on-board vehicular application. In collaboration with Center co-leads Los Alamos National Laboratory (LANL) and Pacific Northwest National Laboratory (PNNL), and other Center partners, Dow's efforts were directed towards defining and evaluating novel chemistries for producing chemical hydrides and processes for spent fuel regeneration. In Phase 1 of this project, emphasis was placed on sodium borohydride (NaBH{sub 4}), long considered a strong candidate for hydrogen storage because of its high hydrogen storage capacity, well characterized hydrogen release chemistry, safety, and functionality. Various chemical pathways for regenerating NaBH{sub 4} from spent sodium borate solution were investigated, with the objective of meeting the 2010/2015 DOE targets of $2-3/gal gasoline equivalent at the pump ($2-3/kg H{sub 2}) for on-board hydrogen storage systems and an overall 60% energy efficiency. With the September 2007 No-Go decision for NaBH{sub 4} as an on-board hydrogen storage medium, focus was shifted to ammonia borane (AB) for on-board hydrogen storage and delivery. However, NaBH{sub 4} is a key building block to most boron-based fuels, and the ability to produce NaBH{sub 4} in an energy-efficient, cost-effective, and environmentally sound manner is critical to the viability of AB, as well as many leading materials under consideration by the Metal Hydride Center of Excellence. Therefore, in Phase 2, research continued towards identifying and developing a single low-cost NaBH4 synthetic route for cost-efficient AB first fill, and conducting baseline cost estimates for first fill and regenerated AB using a variety of synthetic routes. This project utilized an engineering-guided R&D approach, which involved the rapid down-selection of a large number of options (chemical pathways to NaBH{sub 4}) to a smaller, more manageable number. The research began by conducting an extensive review of the technical and patent literature to identify all possible options. The down-selection was based on evaluation of the options against a set of metrics, and to a large extent occurred before experimentation was initiated. Given the vast amount of literature and patents that has evolved over the years, this approach helped to focus efforts and resources on the options with the highest technical and commercial probability of success. Additionally, a detailed engineering analysis methodology was developed for conducting the cost and energy-efficiency calculations. The methodology utilized a number of inputs and tools (Aspen PEA{trademark}, FCHTool, and H2A). The down-selection of chemical pathways to NaBH{sub 4} identified three options that were subsequently pursued experimentally. Metal reduction of borate was investigated in Dow's laboratories, research on electrochemical routes to NaBH{sub 4} was conducted at Pennsylvania State University, and Idaho National Laboratory researchers examined various carbothermal routes for producing NaBH{sub 4} from borate. The electrochemical and carbothermal studies did not yield sufficiently positive results. However, NaBH{sub 4} was produced in high yields and purities by an aluminum-based metal reduction pathway. Solid-solid reactive milling, slurry milling, and solution-phase approaches to metal reduction were investigated, and while both reactive milling and solution-phase routes point to fully recyclable processes, the scale-up of reactive milling processes to produce NaBH{sub 4} is expected to be difficult. Alternatively, a low-cost solution-phase approach to NaBH{sub 4} has been identified that is based on conventional process unit operations and should be amenable to scale-up. Numerous advances in AB synthesis have been made in recent years to improve AB yields and purities

Suzanne W. Linehan; Arthur A. Chin; Nathan T. Allen; Robert Butterick; Nathan T. Kendall; I. Leo Klawiter; Francis J. Lipiecki; Dean M. Millar; David C. Molzahn; Samuel J. November; Puja Jain; Sara Nadeau; Scott Mancroni

2010-12-31T23:59:59.000Z

54

Studies of solid state hydrogen storage materials by SAXS and QENS Qing Shi a, b  

E-Print Network (OSTI)

Studies of solid state hydrogen storage materials by SAXS and QENS Qing Shi a, b , Hjalte S on the Earth; moreover, the chemical energy per weight of hydrogen (142MJ/kg) is at least three times larger than that of other chemical fuels1 . However, hydrogen storage is still a key problem remaining

55

HIGH-THROUGHPUT/COMBINATORIAL TECHNIQUES IN HYDROGEN STORAGE MATERIALS R&D WORKSHOP  

E-Print Network (OSTI)

HIGH-THROUGHPUT/COMBINATORIAL TECHNIQUES IN HYDROGEN STORAGE MATERIALS R&D WORKSHOP U.S. Department of Energy Office of Hydrogen, Fuel Cells and Infrastructure Technologies June 26, 2007 Bethesda, MD On June 26, 2007, DOE's Hydrogen Storage Program held a one-day High- Throughput/Combinatorial Techniques

56

Hydrogen storage material and process using graphite additive with metal-doped complex hydrides  

DOE Patents (OSTI)

A hydrogen storage material having improved hydrogen absorbtion and desorption kinetics is provided by adding graphite to a complex hydride such as a metal-doped alanate, i.e., NaAlH.sub.4. The incorporation of graphite into the complex hydride significantly enhances the rate of hydrogen absorbtion and desorption and lowers the desorption temperature needed to release stored hydrogen.

Zidan, Ragaiy (Aiken, SC); Ritter, James A. (Lexington, SC); Ebner, Armin D. (Lexington, SC); Wang, Jun (Columbia, SC); Holland, Charles E. (Cayce, SC)

2008-06-10T23:59:59.000Z

57

HT Combinatorial Screening of Novel Materials for High Capacity Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

FLORIDA SOLAR ENERGY CENTER FLORIDA SOLAR ENERGY CENTER Creating Energy Independence Since 1975 A Research Institute of the University of Central Florida HT Combinatorial Screening of HT Combinatorial Screening of Novel Materials for High Capacity Novel Materials for High Capacity Hydrogen Storage Hydrogen Storage Ali T Ali T - - Raissi Raissi Director, Hydrogen & Fuel Cell R&D Director, Hydrogen & Fuel Cell R&D Division Division High Throughput/Combinatorial Analysis of Hydrogen Storage High Throughput/Combinatorial Analysis of Hydrogen Storage Materials Workshop, Bethesda, MD Materials Workshop, Bethesda, MD 26 June 2007 26 June 2007 This presentation does not contain any proprietary or confidential information 2 Objectives Objectives Develop (i.e. design, build, test and verify) a high

58

FCT Hydrogen Storage: Contacts  

NLE Websites -- All DOE Office Websites (Extended Search)

Contacts to someone by E-mail Share FCT Hydrogen Storage: Contacts on Facebook Tweet about FCT Hydrogen Storage: Contacts on Twitter Bookmark FCT Hydrogen Storage: Contacts on...

59

Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Objectives - Develop and verify: On-board hydrogen storage systems achieving: 1.5 kWhkg (4.5 wt%), 1.2 kWhL, and 6kWh by 2005 2 kWhkg (6 wt%), 1.5 kWhL, and 4kWh by...

60

Ultrafine hydrogen storage powders  

DOE Patents (OSTI)

A method of making hydrogen storage powder resistant to fracture in service involves forming a melt having the appropriate composition for the hydrogen storage material, such, for example, LaNi.sub.5 and other AB.sub.5 type materials and AB.sub.5+x materials, where x is from about -2.5 to about +2.5, including x=0, and the melt is gas atomized under conditions of melt temperature and atomizing gas pressure to form generally spherical powder particles. The hydrogen storage powder exhibits improved chemcial homogeneity as a result of rapid solidfication from the melt and small particle size that is more resistant to microcracking during hydrogen absorption/desorption cycling. A hydrogen storage component, such as an electrode for a battery or electrochemical fuel cell, made from the gas atomized hydrogen storage material is resistant to hydrogen degradation upon hydrogen absorption/desorption that occurs for example, during charging/discharging of a battery. Such hydrogen storage components can be made by consolidating and optionally sintering the gas atomized hydrogen storage powder or alternately by shaping the gas atomized powder and a suitable binder to a desired configuration in a mold or die.

Anderson, Iver E. (Ames, IA); Ellis, Timothy W. (Doylestown, PA); Pecharsky, Vitalij K. (Ames, IA); Ting, Jason (Ames, IA); Terpstra, Robert (Ames, IA); Bowman, Robert C. (La Mesa, CA); Witham, Charles K. (Pasadena, CA); Fultz, Brent T. (Pasadena, CA); Bugga, Ratnakumar V. (Arcadia, CA)

2000-06-13T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

FCT Hydrogen Storage: Current Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

Current Technology to someone Current Technology to someone by E-mail Share FCT Hydrogen Storage: Current Technology on Facebook Tweet about FCT Hydrogen Storage: Current Technology on Twitter Bookmark FCT Hydrogen Storage: Current Technology on Google Bookmark FCT Hydrogen Storage: Current Technology on Delicious Rank FCT Hydrogen Storage: Current Technology on Digg Find More places to share FCT Hydrogen Storage: Current Technology on AddThis.com... Home Basics Current Technology Gaseous and Liquid Hydrogen Storage Materials-Based Hydrogen Storage Hydrogen Storage Challenges Status of Hydrogen Storage Technologies DOE R&D Activities Quick Links Hydrogen Production Hydrogen Delivery Fuel Cells Technology Validation Manufacturing Codes & Standards Education Systems Analysis Contacts Current Technology

62

Uranium for hydrogen storage applications : a materials science perspective.  

DOE Green Energy (OSTI)

Under appropriate conditions, uranium will form a hydride phase when exposed to molecular hydrogen. This makes it quite valuable for a variety of applications within the nuclear industry, particularly as a storage medium for tritium. However, some aspects of the U+H system have been characterized much less extensively than other common metal hydrides (particularly Pd+H), likely due to radiological concerns associated with handling. To assess the present understanding, we review the existing literature database for the uranium hydride system in this report and identify gaps in the existing knowledge. Four major areas are emphasized: {sup 3}He release from uranium tritides, the effects of surface contamination on H uptake, the kinetics of the hydride phase formation, and the thermal desorption properties. Our review of these areas is then used to outline potential avenues of future research.

Shugard, Andrew D.; Tewell, Craig R.; Cowgill, Donald F.; Kolasinski, Robert D.

2010-08-01T23:59:59.000Z

63

Materials Dow Select Decisions Made Within DOEs Chemical Hydrogen Storage Center of Excellence  

NLE Websites -- All DOE Office Websites (Extended Search)

Down Select Report of Chemical Hydrogen Down Select Report of Chemical Hydrogen Storage Materials, Catalysts, and Spent Fuel Regeneration Processes Chemical Hydrogen Storage Center of Excellence FY2008 Second Quarter Milestone Report Submitted by: The Chemical Hydrogen Storage Center of Excellence Coordinating Council Authors: Kevin C. Ott, Los Alamos National Laboratory Sue Linehan, Rohm and Haas Company Frank Lipiecki, Rohm and Haas Company Christopher L. Aardahl, Pacific Northwest National Laboratory May 2008 Acknowledgements The authors of this report wish to thank all of the partners of the Chemical Hydrogen Storage Center of Excellence. Without their dedication, technical contributions and teamwork, and the hard work of the students and postdocs involved in this work, this Center would not have been

64

FUNDAMENTAL SAFETY TESTING AND ANALYSIS OF HYDROGEN STORAGE MATERIALS AND SYSTEMS  

DOE Green Energy (OSTI)

Hydrogen is seen as the future automobile energy storage media due to its inherent cleanliness upon oxidation and its ready utilization in fuel cell applications. Its physical storage in light weight, low volume systems is a key technical requirement. In searching for ever higher gravimetric and volumetric density hydrogen storage materials and systems, it is inevitable that higher energy density materials will be studied and used. To make safe and commercially acceptable systems, it is important to understand quantitatively, the risks involved in using and handling these materials and to develop appropriate risk mitigation strategies to handle unforeseen accidental events. To evaluate these materials and systems, an IPHE sanctioned program was initiated in 2006 partnering laboratories from Europe, North America and Japan. The objective of this international program is to understanding the physical risks involved in synthesis, handling and utilization of solid state hydrogen storage materials and to develop methods to mitigate these risks. This understanding will support ultimate acceptance of commercially high density hydrogen storage system designs. An overview of the approaches to be taken to achieve this objective will be given. Initial experimental results will be presented on environmental exposure of NaAlH{sub 4}, a candidate high density hydrogen storage compound. The tests to be shown are based on United Nations recommendations for the transport of hazardous materials and include air and water exposure of the hydride at three hydrogen charge levels in various physical configurations. Additional tests developed by the American Society for Testing and Materials were used to quantify the dust cloud ignition characteristics of this material which may result from accidental high energy impacts and system breach. Results of these tests are shown along with necessary risk mitigation techniques used in the synthesis and fabrication of a prototype hydrogen storage system.

Anton, D

2007-05-01T23:59:59.000Z

65

Computational studies of hydrogen interactions with storage materials - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

6 6 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Chris G. Van de Walle (Primary Contact), Lars Ismer, Anindya Roy, and Anderson Janotti Materials Department, University of California Santa Barbara, CA 93106-5050 Phone: (805) 893-7144 Email: vandewalle@mrl.ucsb.edu DOE Program Officer: James Davenport Phone: (301) 903-0035 Email: James.Davenport@science.doe.gov Objectives Building on our accumulated knowledge of hydrogen interactions with semiconductors and insulators we have been conducting computational studies with the goal of developing new insights for hydrogen interactions with hydrogen storage materials. Using state-of-the-art density functional calculations, our research addresses the energetics

66

Hydrogen Storage Technologies Hydrogen Delivery  

E-Print Network (OSTI)

Hydrogen Storage Technologies Roadmap Hydrogen Delivery Technical Team Roadmap June 2013 #12;This.................................................................................. 13 6. Hydrogen Storage and Innovation for Vehicle efficiency and Energy sustainability) is a voluntary, nonbinding, and nonlegal

67

FCT Hydrogen Storage: The 'National Hydrogen Storage Project...  

NLE Websites -- All DOE Office Websites (Extended Search)

The 'National Hydrogen Storage Project' to someone by E-mail Share FCT Hydrogen Storage: The 'National Hydrogen Storage Project' on Facebook Tweet about FCT Hydrogen Storage: The...

68

Advanced Concepts for Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Framework", Nature, 402, 276-279 (1999). Mesoporous Organosilica Material benzene-silica hybrid material Hydrogen storage behavior? S. Inagaki, S. Guan, T. Ohsuna, and...

69

Novel Molecular Materials for Hydrogen Storage Applications - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

6 6 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Maddury Somayazulu (Primary Contact), Timothy Strobel, Robert Potter, Raja Chellappa, Viktor Struzhkin, Russell J Hemley Geophysical Laboratory Carnegie Institution of Washington 5251 Broad Branch Rd NW Washington, D.C. 20015 Phone: (202) 478-8911 Email: zulu@gl.ciw.edu DOE Program Manager: Dr. P. Thiyagarajan Phone: (301) 903-9706 Email: P.Thiyagarajan@science.doe.gov Objectives Discover, identify and characterize novel hydrogen-rich * compounds that can be used for hydrogen storage or as agents for rehydrogenation of hydrogen storage materials at high pressures. Investigate high pressure routes to rehydrogenating * ammonia borane and polymeric complexes of ammonia borane. Investigate interaction of hydrogen with metallo-organic *

70

Hydrogen Compression, Storage, and Dispensing Cost Reduction...  

NLE Websites -- All DOE Office Websites (Extended Search)

of Materials. Storage Respondents submitted additional needs for R&D in the area of hydrogen storage: Advanced metal alloys in order to lower the cost of hydrogen...

71

FCT Hydrogen Storage: Basics  

NLE Websites -- All DOE Office Websites (Extended Search)

Basics to someone by E-mail Share FCT Hydrogen Storage: Basics on Facebook Tweet about FCT Hydrogen Storage: Basics on Twitter Bookmark FCT Hydrogen Storage: Basics on Google...

72

Systems Modeling, Simulation and Material Operating Requirements for Chemical Hydride Based Hydrogen Storage  

Science Conference Proceedings (OSTI)

Research on ammonia borane (AB, NH3BH3) has shown it to be a promising material for chemical hydride based hydrogen storage. AB was selected by DOE's Hydrogen Storage Engineering Center of Excellence (HSECoE) as the initial chemical hydride of study because of its high hydrogen storage capacity (up to 19.6% by weight for the release of {approx}2.5 molar equivalents of hydrogen gas) and its stability under typical ambient conditions. A new systems concept based on augers, ballast tank, hydrogen heat exchanger and H2 burner was designed and implemented in simulation. In this design, the chemical hydride material was assumed to produce H2 on the augers itself, thus minimizing the size of ballast tank and reactor. One dimensional models based on conservation of mass, species and energy were used to predict important state variables such as reactant and product concentrations, temperatures of various components, flow rates, along with pressure, in various components of the storage system. Various subsystem components in the models were coded as C language S-functions and implemented in Matlab/Simulink environment. The control variable AB (or alane) flow rate was determined through a simple expression based on the ballast tank pressure, H2 demand from the fuel cell and hydrogen production from AB (or alane) in the reactor. System simulation results for solid AB, liquid AB and alane for both steady state and transient drive cycle cases indicate the usefulness of the model for further analysis and prototype development.

Devarakonda, Maruthi N.; Brooks, Kriston P.; Ronnebro, Ewa; Rassat, Scot D.

2012-02-01T23:59:59.000Z

73

Hydrogen Storage Materials Requirements to Meet the 2017 On Board...  

NLE Websites -- All DOE Office Websites (Extended Search)

Electric Fan (Puller) Nylon 1 5.9 INS-11 Temperature sensor 0.1 0.02 V-5 Control Valve Brass 1.7 0.75 Hydrogen Discharge FT-1 Coalescing Filter SS 1.2 0.34 RD-2 Gas Radiator 304...

74

NREL Develops Accelerated Sample Activation Process for Hydrogen Storage Materials (Fact Sheet)  

DOE Green Energy (OSTI)

This fact sheet describes NREL's accomplishments in developing a new sample activation process that reduces the time to prepare samples for measurement of hydrogen storage from several days to five minutes and provides more uniform samples. Work was performed by NREL's Chemical and Materials Science Center.

Not Available

2010-12-01T23:59:59.000Z

75

Hydrogen & Fuel Cells - Hydrogen - Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage Systems Modeling and Analysis Hydrogen Storage Systems Modeling and Analysis Several different approaches are being pursued to develop on-board hydrogen storage systems for light-duty vehicle applications. The different approaches have different characteristics, such as: the thermal energy and temperature of charge and discharge kinetics of the physical and chemical process steps involved requirements for the materials and energy interfaces between the storage system and the fuel supply system on one hand, and the fuel user on the other Other storage system design and operating parameters influence the projected system costs as well. Argonne researchers are developing thermodynamic, kinetic, and engineering models of the various hydrogen storage systems to understand the characteristics of storage systems based on these approaches and to evaluate their potential to meet the DOE targets for on-board applications. The DOE targets for 2015 include a system gravimetric capacity of 1.8 kWh/kg (5.5 wt%) and a system volumetric capacity of 1.3 kWh/L (40 g/L). We then use these models to identify significant component and performance issues, and evaluate alternative system configurations and design and operating parameters.

76

Functional Materials for Rechargeable Li Battery and Hydrogen Storage.  

E-Print Network (OSTI)

??The exploration of functional materials to store renewable, clean, and efficient energies for electric vehicles (EVs) has become one of the most popular topics in (more)

He, Guang

2013-01-01T23:59:59.000Z

77

Hydrogen Storage Materials for Fuel Cell-Powered Vehicles - DOE...  

NLE Websites -- All DOE Office Websites (Extended Search)

to design suitable methods using MgH 2 as a model system. These methods included: Synthesis of new materials by mechanical alloying using * ball milling. Determining...

78

Measurement Quality in Hydrogen Storage R&D  

Science Conference Proceedings (OSTI)

Measurement Quality in Hydrogen Storage R&D. Summary: No existing hydrogen storage material satisfies the Department ...

2012-10-01T23:59:59.000Z

79

Development of Regenerable High Capacity Boron Nitrogen Hydrides as Hydrogen Storage Materials  

DOE Green Energy (OSTI)

The objective of this three-phase project is to develop synthesis and hydrogen extraction processes for nitrogen/boron hydride compounds that will permit exploitation of the high hydrogen content of these materials. The primary compound of interest in this project is ammonia-borane (NH{sub 3}BH{sub 3}), a white solid, stable at ambient conditions, containing 19.6% of its weight as hydrogen. With a low-pressure on-board storage and an efficient heating system to release hydrogen, ammonia-borane has a potential to meet DOE's year 2015 specific energy and energy density targets. If the ammonia-borane synthesis process could use the ammonia-borane decomposition products as the starting raw material, an efficient recycle loop could be set up for converting the decomposition products back into the starting boron-nitrogen hydride. This project is addressing two key challenges facing the exploitation of the boron/nitrogen hydrides (ammonia-borane), as hydrogen storage material: (1) Development of a simple, efficient, and controllable system for extracting most of the available hydrogen, realizing the high hydrogen density on a system weight/volume basis, and (2) Development of a large-capacity, inexpensive, ammonia-borane regeneration process starting from its decomposition products (BNHx) for recycle. During Phase I of the program both catalytic and non-catalytic decomposition of ammonia borane are being investigated to determine optimum decomposition conditions in terms of temperature for decomposition, rate of hydrogen release, purity of hydrogen produced, thermal efficiency of decomposition, and regenerability of the decomposition products. The non-catalytic studies provide a base-line performance to evaluate catalytic decomposition. Utilization of solid phase catalysts mixed with ammonia-borane was explored for its potential to lower the decomposition temperature, to increase the rate of hydrogen release at a given temperature, to lead to decomposition products amenable for regeneration, and direct catalytic hydrogenation of the decomposition products. Two different approaches of heating ammonia-borane are being investigated: (a) 'heat to material approach' in which a fixed compartmentalized ammonia-borane is heated by a carefully controlled heating pattern, and (b) 'material to heat approach' in which a small amount of ammonia-borane is dispensed at a time in a fixed hot zone. All stages of AB decomposition are exothermic which should allow the small 'hot zone' used in the second approach for heating to be self-sustaining. During the past year hydrogen release efforts focused on the second approach determining the amount of hydrogen released, kinetics of hydrogen release, and the amounts of impurities released as a function of AB decomposition temperature in the 'hot zone.'

Damle, A.

2010-02-03T23:59:59.000Z

80

Hydrogen & Fuel Cells - Hydrogen - Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

University of Chicago team. On-board hydrogen storage is critical to the development of future high energy efficiency transportation technologies, such as hydrogen-powered fuel...

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

FCT Hydrogen Storage: Hydrogen Storage R&D Activities  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage R&D Activities Hydrogen Storage R&D Activities to someone by E-mail Share FCT Hydrogen Storage: Hydrogen Storage R&D Activities on Facebook Tweet about FCT Hydrogen Storage: Hydrogen Storage R&D Activities on Twitter Bookmark FCT Hydrogen Storage: Hydrogen Storage R&D Activities on Google Bookmark FCT Hydrogen Storage: Hydrogen Storage R&D Activities on Delicious Rank FCT Hydrogen Storage: Hydrogen Storage R&D Activities on Digg Find More places to share FCT Hydrogen Storage: Hydrogen Storage R&D Activities on AddThis.com... Home Basics Current Technology DOE R&D Activities National Hydrogen Storage Compressed/Liquid Hydrogen Tanks Testing and Analysis Quick Links Hydrogen Production Hydrogen Delivery Fuel Cells Technology Validation Manufacturing Codes & Standards

82

Thermodynamically Tuned Nanophase Materials for Reversible Hydrogen Storage: Structure and Kinetics of Nanoparticle and Model System Materials  

DOE Green Energy (OSTI)

This is the final report of our program on hydrogen storage in thin film and nanoparticle metal hydrides.

Bruce M. Clemens

2010-08-26T23:59:59.000Z

83

Hydrogen Storage by Novel CBN Heterocycle Materials - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

4 4 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Shih-Yuan Liu University of Oregon Department of Chemistry 1253 University of Oregon Eugene, OR 97403-1253 Phone: (541) 346-5573 Email: lsy@uoregon.edu DOE Managers HQ: Grace Ordaz Phone: (202) 586-8350 Email: Grace.Ordaz@ee.doe.gov GO: Katie Randolph Phone: (720) 356-1759 Email: Katie.Randolph@go.doe.gov Contract Number: DE-FG36-08GO18143 Project Start Date: September 1, 2008 Project End Date: September 30, 2012 Fiscal Year (FY) 2012 Objectives The objective of this project is to develop novel boron- nitrogen heterocycles as liquid-phase hydrogen storage materials with storage capacities and thermodynamic properties that have the potential to lead to rechargeable systems capable of meeting DOE targets. We seek to:

84

Compact fuel cell system utilizing a combination of hydrogen storage materials for optimized performance.  

SciTech Connect

An entirely new class of light-weight reversible hydrides was recently discovered (the Ti-doped alanates)[1]. These NaAIH{sub 4}-based materials have demonstrated reversible hydrogen storage capacities of up to 5 wt%, nearly 4 times the gravimetrically density of commercial metal hydrides. For this reason, they have been considered a breakthrough for hydrogen storage in fuel cell vehicles. This project is the first to publish the use of alanates for the generation of electrical power and the first demonstration of a hydride-fueled elevated-temperature PEM Fuel Cell. Because the kinetics of hydrogen uptake and release by the alanate improves with elevated temperatures, novel concepts were tested for the purpose of developing a highly efficient stand-alone power system. A major focus of this work was on the modeling, design, construction and testing of an integrated fuel cell stack and hydrogen storage system that eliminates the need of complicated heat transfer systems and media. After extensive modeling efforts, a proof-of-concept system was built that employs an integrated fuel cell stack and hydride beds that balancing the generation of fuel cell waste heat with the endothermic release of hydrogen from the alanates. Our demonstration unit was capable of greater than one hour of operation on a single charge of hydrogen from the integrated 173 gram alanate bed. In addition, composite hydride materials with synergistic reaction heats were evaluated and tested to enhance the operational performance of the alanates. The composites provide a unique opportunity to utilize the heat produced from hydriding classic metal hydrides to improve both absorption and desorption rates of the alanates. A particular focus of the mixed storage materials work was to balance the thermodynamics and kinetics of the hydrides for start-up conditions. Modeling of the sorption properties proved invaluable in evaluating the optimum composition of hydrides. The modeling efforts were followed by full validation by experimental measurements. This project successfully completed the proof-of-concept goals and generated a powerful set of tools for optimizing the complete power-generation system. It has also created a new direction for hydrogen power generation as well the potential for new R&D based on this work.

Chan, Jennifer P.; Dedrick, Daniel E.; Gross, Karl J.; Ng, Greg L.

2004-12-01T23:59:59.000Z

85

Performance testing of aged hydrogen getters against criteria for interim safe storage of plutonium bearing materials.  

DOE Green Energy (OSTI)

Hydrogen getters were tested for use in storage of plutonium-bearing materials in accordance with DOE's Criteria for Interim Safe Storage of Plutonium Bearing Materials. The hydrogen getter HITOP was aged for 3 months at 70 C and tested under both recombination and hydrogenation conditions at 20 and 70 C; partially saturated and irradiated aged getter samples were also tested. The recombination reaction was found to be very fast and well above the required rate of 45 std. cc H2h. The gettering reaction, which is planned as the backup reaction in this deployment, is slower and may not meet the requirements alone. Pressure drop measurements and {sup 1}H NMR analyses support these conclusions. Although the experimental conditions do not exactly replicate the deployment conditions, the results of our conservative experiments are clear: the aged getter shows sufficient reactivity to maintain hydrogen concentrations below the flammability limit, between the minimum and maximum deployment temperatures, for three months. The flammability risk is further reduced by the removal of oxygen through the recombination reaction. Neither radiation exposure nor thermal aging sufficiently degrades the getter to be a concern. Future testing to evaluate performance for longer aging periods is in progress.

Shepodd, Timothy J.; Nissen, April; Buffleben, George M.

2006-01-01T23:59:59.000Z

86

Fuel Cells, Hydrogen Storage, Ferroelectrics, Wind Energy  

Science Conference Proceedings (OSTI)

Mar 15, 2012 ... Energy Nanomaterials: Fuel Cells, Hydrogen Storage, Ferroelectrics, Wind Energy Sponsored by: The Minerals, Metals and Materials Society,...

87

Some Examples in Hydrogen Storage, Thermoelectrics and  

Science Conference Proceedings (OSTI)

Presentation Title, Computational Phase-stability Research and Education in Energy Materials: Some Examples in Hydrogen Storage, Thermoelectrics and...

88

High Capacity Hydrogen Storage Nanocomposite - Energy ...  

Energy Storage Advanced Materials High Capacity Hydrogen Storage Nanocomposite Processes to add metal hydrideds to nanocarbon structures to yield high capacity ...

89

Hydrogen Storage II - Programmaster.org  

Science Conference Proceedings (OSTI)

Aug 3, 2010 ... Symposium L: Energy Generation, Harvesting and Storage Materials: Hydrogen Storage II Program Organizers: Jian-Feng Nie, Monash...

90

Catalyzed borohydrides for hydrogen storage  

Science Conference Proceedings (OSTI)

A hydrogen storage material and process is provided in which alkali borohydride materials are created which contain effective amounts of catalyst(s) which include transition metal oxides, halides, and chlorides of titanium, zirconium, tin, and combinations of the various catalysts. When the catalysts are added to an alkali borodydride such as a lithium borohydride, the initial hydrogen release point of the resulting mixture is substantially lowered. Additionally, the hydrogen storage material may be rehydrided with weight percent values of hydrogen at least about 9 percent.

Au, Ming (Augusta, GA)

2012-02-28T23:59:59.000Z

91

Theory and Modeling of Weakly Bound/Physisorbed Materials for Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

and Modeling of and Modeling of Weakly Bound/Physisorbed Materials for Hydrogen Storage Andrew Williamson Quantum Simulations Group Lawrence Livermore National Laboratory Tadashi Ogitsu Lawrence Livermore National Laboratory Yong-Hyun Kim, Mike Heben, and Shengbai Zhang National Renewable Energy Laboratory UCRL-209054 This work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48. Outline * Storage by physisorption: - CNT, fullerenes, carbon aerogels - Doping, Decorating, Charging * Accuracy of Methods: DFT, QMC and Quantum Chemistry - Van der Waals interactions - * Use of DFT to screen for new compounds - 2 binding to doped fullerenes * LDA, GGA and ad-hoc corrections to pseudopotentials

92

Hydrogen storage gets new hope  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen storage gets new hope Hydrogen storage gets new hope Hydrogen storage gets new hope A new method for "recycling" hydrogen-containing fuel materials could open the door to economically viable hydrogen-based vehicles. September 1, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Contact James E. Rickman

93

Nanocomposite for High Capacity Hydrogen Storage  

Researchers at Berkeley Lab have designed a new composite material for hydrogen storage. The nanocomposite materials rapidly absorbs and releases hydr ...

94

Iron 'Veins' Are Secret of Promising New Hydrogen Storage ...  

Science Conference Proceedings (OSTI)

Iron 'Veins' Are Secret of Promising New Hydrogen Storage Material. ... International Journal of Hydrogen Energy, 36 (2011), pp. ...

2012-10-18T23:59:59.000Z

95

FUNDAMENTAL ENVIRONMENTAL REACTIVITY TESTING AND ANALYSIS OF THE HYDROGEN STORAGE MATERIAL 2LIBH4 MGH2  

DOE Green Energy (OSTI)

While the storage of hydrogen for portable and stationary applications is regarded as critical in bringing PEM fuel cells to commercial acceptance, little is known of the environmental exposure risks posed in utilizing condensed phase chemical storage options as in complex hydrides. It is thus important to understand the effect of environmental exposure of metal hydrides in the case of accident scenarios. Simulated tests were performed following the United Nations standards to test for flammability and water reactivity in air for a destabilized lithium borohydride and magnesium hydride system in a 2 to 1 molar ratio respectively. It was determined that the mixture acted similarly to the parent, lithium borohydride, but at slower rate of reaction seen in magnesium hydride. To quantify environmental exposure kinetics, isothermal calorimetry was utilized to measure the enthalpy of reaction as a function of exposure time to dry and humid air, and liquid water. The reaction with liquid water was found to increase the heat flow significantly during exposure compared to exposure in dry or humid air environments. Calorimetric results showed the maximum normalized heat flow the fully charged material was 6 mW/mg under liquid phase hydrolysis; and 14 mW/mg for the fully discharged material also occurring under liquid phase hydrolysis conditions.

James, C.; Anton, D.; Cortes-Concepcion, J.; Brinkman, K.; Gray, J.

2012-01-10T23:59:59.000Z

96

Hydrogen Storage- Overview  

NLE Websites -- All DOE Office Websites (Extended Search)

- - Overview George Thomas, Hydrogen Consultant to SNL * and Jay Keller, Hydrogen Program Manager Sandia National Laboratories H 2 Delivery and Infrastructure Workshop May 7-8, 2003 * Most of this presentation has been extracted from George Thomas' invited BES Hydrogen Workshop presentation (May 13-14, 2003) Sandia National Laboratories 4/14/03 2 Sandia National Laboratories From George Thomas, BES workshop 5/13/03 H 2 storage is a critical enabling technology for H 2 use as an energy carrier The low volumetric density of gaseous fuels requires a storage method which compacts the fuel. Hence, hydrogen storage systems are inherently more complex than liquid fuels. Storage technologies are needed in all aspects of hydrogen utilization. production distribution utilization

97

Hydrogen-based electrochemical energy storage  

DOE Patents (OSTI)

An energy storage device (100) providing high storage densities via hydrogen storage. The device (100) includes a counter electrode (110), a storage electrode (130), and an ion conducting membrane (120) positioned between the counter electrode (110) and the storage electrode (130). The counter electrode (110) is formed of one or more materials with an affinity for hydrogen and includes an exchange matrix for elements/materials selected from the non-noble materials that have an affinity for hydrogen. The storage electrode (130) is loaded with hydrogen such as atomic or mono-hydrogen that is adsorbed by a hydrogen storage material such that the hydrogen (132, 134) may be stored with low chemical bonding. The hydrogen storage material is typically formed of a lightweight material such as carbon or boron with a network of passage-ways or intercalants for storing and conducting mono-hydrogen, protons, or the like. The hydrogen storage material may store at least ten percent by weight hydrogen (132, 134) at ambient temperature and pressure.

Simpson, Lin Jay

2013-08-06T23:59:59.000Z

98

Materials for storage and release of hydrogen and methods for preparing and using same  

DOE Patents (OSTI)

The invention relates to materials for storing and releasing hydrogen and methods for preparing and using same. The materials exhibit fast release rates at low release temperatures and are suitable as fuel and/or hydrogen sources for a variety of applications such as automobile engines.

Autrey, Thomas S. (West Richland, WA); Gutowska, Anna (Richland, WA); Shin, Yongsoon (Richland, WA); Li, Liyu (Richland, WA)

2008-01-08T23:59:59.000Z

99

NREL: Learning - Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage Hydrogen Storage On the one hand, hydrogen's great asset as a renewable energy carrier is that it is storable and transportable. On the other hand, its very low natural density requires storage volumes that are impractical for vehicles and many other uses. Current practice is to compress the gas in pressurized tanks, but this still provides only limited driving range for vehicles and is bulkier than desirable for other uses as well. Liquefying the hydrogen more than doubles the fuel density, but uses up substantial amounts of energy to lower the temperature sufficiently (-253°C at atmospheric pressure), requires expensive insulated tanks to maintain that temperature, and still falls short of desired driving range. One possible way to store hydrogen at higher density is in the spaces within the crystalline

100

DOE Hydrogen and Fuel Cells Program: Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Search help Home > Hydrogen Storage Printable Version Hydrogen Storage Hydrogen storage is a key enabling technology for the advancement of hydrogen and fuel cell power...

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Systems Modeling of Chemical Hydride Hydrogen Storage Materials for Fuel Cell Applications  

Science Conference Proceedings (OSTI)

A fixed bed reactor was designed, modeled and simulated for hydrogen storage on-board the vehicle for PEM fuel cell applications. Ammonia Borane (AB) was selected by DOE's Hydrogen Storage Engineering Center of Excellence (HSECoE) as the initial chemical hydride of study because of its high hydrogen storage capacity (up to {approx}16% by weight for the release of {approx}2.5 molar equivalents of hydrogen gas) and its stability under typical ambient conditions. The design evaluated consisted of a tank with 8 thermally isolated sections in which H2 flows freely between sections to provide ballast. Heating elements are used to initiate reactions in each section when pressure drops below a specified level in the tank. Reactor models in Excel and COMSOL were developed to demonstrate the proof-of-concept, which was then used to develop systems models in Matlab/Simulink. Experiments and drive cycle simulations showed that the storage system meets thirteen 2010 DOE targets in entirety and the remaining four at greater than 60% of the target.

Brooks, Kriston P.; Devarakonda, Maruthi N.; Rassat, Scot D.; Holladay, Jamelyn D.

2011-10-05T23:59:59.000Z

102

Hydrogen storage and integrated fuel cell assembly  

DOE Patents (OSTI)

Hydrogen is stored in materials that absorb and desorb hydrogen with temperature dependent rates. A housing is provided that allows for the storage of one or more types of hydrogen-storage materials in close thermal proximity to a fuel cell stack. This arrangement, which includes alternating fuel cell stack and hydrogen-storage units, allows for close thermal matching of the hydrogen storage material and the fuel cell stack. Also, the present invention allows for tailoring of the hydrogen delivery by mixing different materials in one unit. Thermal insulation alternatively allows for a highly efficient unit. Individual power modules including one fuel cell stack surrounded by a pair of hydrogen-storage units allows for distribution of power throughout a vehicle or other electric power consuming devices.

Gross, Karl J. (Fremont, CA)

2010-08-24T23:59:59.000Z

103

Hydrogen Storage Sub-Program Overview - DOE Hydrogen and Fuel...  

NLE Websites -- All DOE Office Websites (Extended Search)

FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program IntroductIon The Hydrogen Storage sub-program supports research and development (R&D) of materials and...

104

Carbon Aerogels for Hydrogen Storage  

DOE Green Energy (OSTI)

This effort is focused on the design of new nanostructured carbon-based materials that meet the DOE 2010 targets for on-board vehicle hydrogen storage. Carbon aerogels (CAs) are a unique class of porous materials that possess a number of desirable structural features for the storage of hydrogen, including high surface areas (over 3000 m{sup 2}/g), continuous and tunable porosities, and variable densities. In addition, the flexibility associated with CA synthesis allows for the incorporation of modifiers or catalysts into the carbon matrix in order to alter hydrogen sorption enthalpies in these materials. Since the properties of the doped CAs can be systematically modified (i.e. amount/type of dopant, surface area, porosity), novel materials can be fabricated that exhibit enhanced hydrogen storage properties. We are using this approach to design new H{sub 2} sorbent materials that can storage appreciable amounts of hydrogen at room temperature through a process known as hydrogen spillover. The spillover process involves the dissociative chemisorption of molecular hydrogen on a supported metal catalyst surface (e.g. platinum or nickel), followed by the diffusion of atomic hydrogen onto the surface of the support material. Due to the enhanced interaction between atomic hydrogen and the carbon support, hydrogen can be stored in the support material at more reasonable operating temperatures. While the spillover process has been shown to increase the reversible hydrogen storage capacities at room temperature in metal-loaded carbon nanostructures, a number of issues still exist with this approach, including slow kinetics of H{sub 2} uptake and capacities ({approx} 1.2 wt% on carbon) below the DOE targets. The ability to tailor different structural aspects of the spillover system (i.e. the size/shape of the catalyst particle, the catalyst-support interface and the support morphology) should provide valuable mechanistic information regarding the critical aspects of the spillover process (i.e. kinetics of hydrogen dissociation, diffusion and recombination) and allow for optimization of these materials to meet the DOE targets for hydrogen storage. In a parallel effort, we are also designing CA materials as nanoporous scaffolds for metal hydride systems. Recent work by others has demonstrated that nanostructured metal hydrides show enhanced kinetics for reversible hydrogen storage relative to the bulk materials. This effect is diminished, however, after several hydriding/dehydriding cycles, as the material structure coarsens. Incorporation of the metal hydride into a porous scaffolding material can potentially limit coarsening and, therefore, preserve the enhanced kinetics and improved cycling behavior of the nanostructured metal hydride. Success implementation of this approach, however, requires the design of nanoporous solids with large accessible pore volumes (> 4 cm{sup 3}/g) to minimize the gravimetric and volumetric capacity penalties associated with the use of the scaffold. In addition, these scaffold materials should be capable of managing thermal changes associated with the cycling of the incorporated metal hydride. CAs are promising candidates for the design of such porous scaffolds due to the large pore volumes and tunable porosity of aerogel framework. This research is a joint effort with HRL Laboratories, a member of the DOE Metal Hydride Center of Excellence. LLNL's efforts have focused on the design of new CA materials that can meet the scaffolding requirements, while metal hydride incorporation into the scaffold and evaluation of the kinetics and cycling performance of these composites is performed at HRL.

Baumann, T F; Worsley, M; Satcher, J H

2008-08-11T23:59:59.000Z

105

Bulk Hydrogen Storage - Strategic Directions for Hydrogen Delivery Workshop  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Hydrogen Storage Strategic Directions for Hydrogen Delivery Workshop May 7-8, 2003 Crystal City, Virginia Breakout Session - Bulk Hydrogen Storage Main Themes/Caveats Bulk Storage = Anything not on the vehicle 10's of Tons -- End use point 50-100 Tons - Terminals/City Gates 1000's Tons - Between Production Facility and Terminal/City Gate Bulk storage requirements less restrictive and different from on-board storage Uncertainty about evolution of infrastructure requires multiple pathways to be considered Bulk storage is an economic solution to address supply/demand imbalance Breakout Session - Bulk Hydrogen Storage Targets/Objectives Hard to quantify - scenario & end-use dependent Storage Materials (solid state) and container require different targets

106

Fuel Cell Technologies Office: Hydrogen Storage  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

| Consumer Information Hydrogen Storage Search Search Help Hydrogen Storage EERE Fuel Cell Technologies Office Hydrogen Storage Printable Version Share this resource Send...

107

Advancement of Systems Designs and Key Engineering Technologies for Materials-Based Hydrogen Storage - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

0 0 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Bart van Hassel (Primary Contact), Jose Miguel Pasini, Andi Limarga, John Holowczak, Igor Fedchenia, John Khalil, Reddy Karra, Ron Brown, Randy McGee United Technologies Research Center (UTRC) 411 Silver Lane East Hartford, CT 06108 Phone: (860) 610-7701 Email: vanhasba@utrc.utc.com DOE Managers HQ: Ned Stetson Phone: (202) 586-9995 Email: Ned.Stetson@ee.doe.gov GO: Jesse Adams Phone: (720) 356-1421 Email: Jesse.Adams@go.doe.gov Contract Number: DE-FC36-09GO19006 Project Start Date: February 1, 2009 Project End Date: June 30, 2014 Fiscal Year (FY) 2012 Objectives Collaborate closely with the Hydrogen Storage * Engineering Center of Excellence (HSECoE) partners to advance materials-based hydrogen storage system

108

Hydrogen Storage DOI: 10.1002/anie.200801163  

E-Print Network (OSTI)

dissociation energy · hydrogen storage · metal­ H2 binding · metal­ organic frameworks · microporous materialsHydrogen Storage DOI: 10.1002/anie.200801163 Hydrogen Storage in Microporous Metal endeavor. Many reports have dealt with the use of hydrogen as a fuel and its storage in different solid

109

DOE Hydrogen and Fuel Cells Program Record 5037: Hydrogen Storage...  

NLE Websites -- All DOE Office Websites (Extended Search)

37 Date: May 22, 2006 Title: Hydrogen Storage Materials - 2004 vs 2006 Originator: Sunita Satyapal Approved by: JoAnn Milliken Date: May 22, 2006 Item: "Identified materials with...

110

Synthetic Design of New Metal-Organic Framework Materials for Hydrogen Storage - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

9 9 FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program Pingyun Feng (Primary Contact), Qipu Lin, Xiang Zhao Department of Chemistry University of California Riverside, CA 92521 Phone: (951) 827-2042 Email: pingyun.feng@ucr.edu DOE Program Officer: Dr. Michael Sennett Phone: (301) 903-6051 Email: Michael.Sennett@science.doe.gov Objectives Design and * synthesize new metal-organic framework materials using lightweight chemical elements to help improve gravimetric hydrogen storage capacity. Develop new synthetic strategies to generate novel * active binding sites on metal ions and ligands to enhance solid-gas interactions for increased uptake near ambient conditions.

111

Li-Mg Solid Solution Alloy for Reversible Hydrogen Storage  

Science Conference Proceedings (OSTI)

Symposium, Hydrogen Storage in Materials: Theory and Experiment ... processes such as rapid solidification and high energy mechanical alloying. The results...

112

Energy Storage in Clathrate Hydrogen Material - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

9 9 FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program Carolyn A. Koh (Primary Contact), Amadeu K. Sum, R. Gary Grim, Matthew R. Walsh, Prasad B. Kerkar Center for Hydrate Research Colorado School of Mines 1600 Illinois Street Golden, CO 80401 Phone: (303) 273-3237 Email: ckoh@mines.edu DOE Program Officer: Bonnie Gersten Phone: (303) 903-0002 Email: Bonnie.Gersten@science.doe.gov Objectives The current project aims to probe key questions surrounding the metastability of hydrates relating to synthesis, structure, and composition. The questions on metastability are crucial in all energy applications of clathrate hydrates including energy storage, energy transportation, and energy recovery. Specifically, this project

113

Hydrogen compatibility of structural materials for energy storage and transmission applications. Semiannual report for period through October 1, 1976  

DOE Green Energy (OSTI)

Substantial support activities for Brookhaven National Laboratory (BNL) have been completed since the initiation of this program. The suitability of commercial alloys for containment of hydride-dehydride reactions have been assessed, and recommendations for materials selection based upon tensile and slow crack growth tests have been made. We have also prepared and installed in a test chamber at BNL a series of in-situ test specimens to be exposed to a cyclic iron-titanium hydride environment. Future BNL support activities will include welding/joining specification development and a post-mortem examination of the in-situ test specimens. Efforts are becoming more oriented to materials development and to the development of specifications for the use of structural steels in hydrogen environment. BNL's hydride storage program has been supported during the last six months by supplying 80 self-loaded tensile specimens for accelerated testing in an FeTiH/sub x/ test bed. A preliminary welding specification for containment of hydrogen in structural mild steels has been developed. Hydrogen permeation resistant coatings, applied by pyrolysis of silane, and by brush electroplating, have been developed. Environmentally assisted, cyclic fatigue in high-pressure hydrogen has been identified as a potential hazard to the integrity of flawed pressure vessels in materials where slow crack growth under constant load is not expected.

Robinson, S.L. (comp.)

1976-12-01T23:59:59.000Z

114

Enhancing hydrogen spillover and storage  

DOE Patents (OSTI)

Methods for enhancing hydrogen spillover and storage are disclosed. One embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the hydrogen receptor to ultrasonification as doping occurs. Another embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the doped hydrogen receptor to a plasma treatment.

Yang, Ralph T. (Ann Arbor, MI); Li, Yingwel (Ann Arbor, MI); Lachawiec, Jr., Anthony J. (Ann Arbor, MI)

2011-05-31T23:59:59.000Z

115

Enhancing hydrogen spillover and storage  

DOE Patents (OSTI)

Methods for enhancing hydrogen spillover and storage are disclosed. One embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the hydrogen receptor to ultrasonication as doping occurs. Another embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the doped hydrogen receptor to a plasma treatment.

Yang, Ralph T; Li, Yingwei; Lachawiec, Jr., Anthony J

2013-02-12T23:59:59.000Z

116

Hydrogen spillover: Its "diffusion" from catalysis to hydrogen storage community  

DOE Green Energy (OSTI)

Dissociative adsorption of hydrogen on catalyst sites followed by surface diffusion (spillover) to a carbon support was first reported for Pt-carbon catalysts (Robell, 1964) and was soon accepted as a valid step of numerous catalytic reactions. However, the concept of metal-assisted hydrogen storage (Schwarz, 1988) based on spillover entered much later the hydrogen community (Lueking and Yang, 2002) and is gaining recognition slowly as an alternate approach for enhancing hydrogen storage capacity of microporous materials for fuel-cell powered vehicles. This talk will analyze the significance and limits of the spillover mechanism for adsorptive storage of hydrogen, with examples of enhanced hydrogen uptake on Pd-containing activated carbon fibers. Evidence of the atomic nature of spilt-over hydrogen will be presented based on experimental results from inelastic neutron spectroscopy studies. Research sponsored by the Division of Materials Sciences and Engineering, U.S. Department of Energy under contract with UT-Battelle, LLC.

Contescu, Cristian I [ORNL; Bhat, Vinay V [ORNL; Gallego, Nidia C [ORNL

2009-01-01T23:59:59.000Z

117

Fluid Phase Chemical Hydrogen Storage Materials - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

8 8 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Benjamin L. Davis (Primary Contact), Tessui Nakagawa, Biswajit Paik, and Troy A. Semelsberger Materials Physics and Applications, Materials Chemistry Los Alamos National Laboratory (LANL), MS J514 P.O. Box 1663 Los Alamos, NM 87545 Phone: (505) 500-2463 Email: bldavis@lanl.gov DOE Manager Grace Ordaz Phone: (202) 586-8350 Email: Grace.Ordaz@hq.doe.gov Partner Tom Baker, University of Ottawa, Ontario, Canada Project Start Date: October 1, 2010 Project End Date: Project continuation and direction determined annually by DOE Fiscal Year (FY) 2012 Objectives Develop fluid, pumpable ammonia-borane (AB)-based fuels with high-H 2 content. Technical Barriers

118

Chemical Hydrogen Storage Center Center of Excellence  

E-Print Network (OSTI)

Source Hydrogen H2 storage Hydrogen Stored Energy Point-of-use Chemical hydrogen storage #12;5 ChemicalChemical Hydrogen Storage Center Center of Excellence for Chemical Hydrogen Storage William Tumas proprietary or confidential information #12;2 Chemical Hydrogen Storage Center Overview Project Start Date: FY

Carver, Jeffrey C.

119

Catalyzed alanates for hydrogen storage  

DOE Green Energy (OSTI)

The discovery that hydrogen can be reversibly absorbed and desorbed from complex hydrides (the alanates) by the addition of catalysts has created an entirely new prospect for lightweight hydrogen storage. Unlike the interstitial intermetallic hydrides, these compounds release hydrogen through a series of decomposition/recombination reactions e.g.: NaAlH{sub 4} {Leftrightarrow} 1/3Na{sub 3}AlH{sub 6} + 2/3Al + H{sub 2} {Leftrightarrow} NaH + Al + 3/2H{sub 2}. Initial work resulted in improved catalysts, advanced methods of preparation and a better understanding of the hydrogen absorption and desorption processes. Recent studies have clarified some of the fundamental material properties as well as the engineering characteristics of catalyst enhanced sodium alanate. Phase transitions observed real-time through in situ X-ray powder diffraction demonstrate that the decomposition reactions occur through long-range transport of metal species. SEM imaging and EDS analysis verify aluminum segregation to the surface of the material during decomposition. The equilibrium thermodynamics of decomposition have now been measured down to room temperature. They show a plateau pressure for the first reaction of 1 atm at 33 C, which suggest that, thermodynamically, this material is ideally suited to onboard hydrogen storage for fuel cell vehicles. Room temperature desorption with slow but measurable kinetics has been recorded for the first time. Studies at elevated temperatures (125-165 C), approaching that found in fuel cell operations, were performed on a scaled-up test bed. The bed demonstrated surprisingly good kinetics and other positive material properties. However, these studies also pointed to the need to develop new non-alkoxide based catalysts and doping methods to increase capacity and reduce the level of hydrocarbon impurities found in the desorbed hydrogen. For this reason, new Ti-Cl catalysts and doping processes are being developed which show higher capacities and improved kinetics. An overview of the current state-of-the-art will be presented along with our own studies and the implications for the viability of these materials in on-board hydrogen storage applications.

K. J. Gross; G. J. Thomas; C. Jensen

2000-11-01T23:59:59.000Z

120

Fuel Cell Technologies Office: Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Storage Storage On-board hydrogen storage for transportation applications continues to be one of the most technically challenging barriers to the widespread commercialization of hydrogen-fueled vehicles. The EERE hydrogen storage activity focuses primarily on the applied research and development (R&D) of low-pressure, materials-based technologies to allow for a driving range of more than 300 miles (500 km) while meeting packaging, cost, safety, and performance requirements to be competitive with current vehicles. While automakers have recently demonstrated progress with some prototype vehicles traveling more than 300 miles on a single fill, this driving range must be achievable across different vehicle models and without compromising space, performance, or cost. In addition, hydrogen storage will be needed for both other niche vehicular applications and off-board uses such as for stationary power generation and for hydrogen delivery and refueling infrastructure.

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

INTEGRATED HYDROGEN STORAGE SYSTEM MODEL  

DOE Green Energy (OSTI)

Hydrogen storage is recognized as a key technical hurdle that must be overcome for the realization of hydrogen powered vehicles. Metal hydrides and their doped variants have shown great promise as a storage material and significant advances have been made with this technology. In any practical storage system the rate of H2 uptake will be governed by all processes that affect the rate of mass transport through the bed and into the particles. These coupled processes include heat and mass transfer as well as chemical kinetics and equilibrium. However, with few exceptions, studies of metal hydrides have focused primarily on fundamental properties associated with hydrogen storage capacity and kinetics. A full understanding of the complex interplay of physical processes that occur during the charging and discharging of a practical storage system requires models that integrate the salient phenomena. For example, in the case of sodium alanate, the size of NaAlH4 crystals is on the order of 300nm and the size of polycrystalline particles may be approximately 10 times larger ({approx}3,000nm). For the bed volume to be as small as possible, it is necessary to densely pack the hydride particles. Even so, in packed beds composed of NaAlH{sub 4} particles alone, it has been observed that the void fraction is still approximately 50-60%. Because of the large void fraction and particle to particle thermal contact resistance, the thermal conductivity of the hydride is very low, on the order of 0.2 W/m-{sup o}C, Gross, Majzoub, Thomas and Sandrock [2002]. The chemical reaction for hydrogen loading is exothermic. Based on the data in Gross [2003], on the order of 10{sup 8}J of heat of is released for the uptake of 5 kg of H{sub 2}2 and complete conversion of NaH to NaAlH{sub 4}. Since the hydride reaction transitions from hydrogen loading to discharge at elevated temperatures, it is essential to control the temperature of the bed. However, the low thermal conductivity of the hydride makes it difficult to remove the heat of reaction, especially in the relatively short target refueling times, see Attachment 3. This document describes a detailed numerical model for general metal hydride beds that couples reaction kinetics with heat and mass transfer, for both hydriding and dehydriding of the bed. The detailed model is part of a comprehensive methodology for the design, evaluation and modification of hydrogen storage systems. In Hardy [2007], scoping models for reaction kinetics, bed geometry and heat removal parameters are discussed. The scoping models are used to perform a quick assessment of storage systems and identify those which have the potential to meet DOE performance targets. The operational characteristics of successful candidate systems are then evaluated with the more detailed models discussed in this document. The detailed analysis for hydrogen storage systems is modeled in either 2 or 3-dimensions, via the general purpose finite element solver COMSOL Multiphysics{reg_sign}. The two-dimensional model serves to provide rapid evaluation of bed configurations and physical processes, while the three-dimensional model, which requires a much longer run time, is used to investigate detailed effects that do not readily lend themselves to two-dimensional representations. The model is general and can be adapted to any geometry or storage media. In this document, the model is applied to a modified cylindrical shell and tube geometry with radial fins perpendicular to the axis, see Figures 4.1-1 and 4.1-2. Sodium alanate, NaAlH{sub 4}, is used as the hydrogen storage medium. The model can be run on any DOS, LINUX or Unix based system.

Hardy, B

2007-11-16T23:59:59.000Z

122

Powertech: Hydrogen Expertise Storage Needs  

NLE Websites -- All DOE Office Websites (Extended Search)

- Stations 700 bar Retail Stations 700 bar Retail Stations (Shell Newport Beach) Hydrogen Energy Storage Projects (BC Hydro Renewable Power - HARP) Lightweight Transport Trailers...

123

Summary Report from DOE Theory Focus Session on Hydrogen Storage...  

NLE Websites -- All DOE Office Websites (Extended Search)

DOE Theory Focus Session on Hydrogen Storage Materials San Francisco, 24 March 2008 In conjunction with the Spring 2008 Materials Research Society Meeting Assessment of Modeling...

124

Hydrogen-based electrochemical energy storage - Energy ...  

An energy storage device (100) providing high storage densities via hydrogen storage. The device (100) includes a counter electrode (110), a storage ...

125

Designing Microporus Carbons for Hydrogen Storage Systems  

DOE Green Energy (OSTI)

An efficient, cost-effective hydrogen storage system is a key enabling technology for the widespread introduction of hydrogen fuel cells to the domestic marketplace. Air Products, an industry leader in hydrogen energy products and systems, recognized this need and responded to the DOE 'Grand Challenge' solicitation (DOE Solicitation DE-PS36-03GO93013) under Category 1 as an industry partner and steering committee member with the National Renewable Energy Laboratory (NREL) in their proposal for a center-of-excellence on Carbon-Based Hydrogen Storage Materials. This center was later renamed the Hydrogen Sorption Center of Excellence (HSCoE). Our proposal, entitled 'Designing Microporous Carbons for Hydrogen Storage Systems,' envisioned a highly synergistic 5-year program with NREL and other national laboratory and university partners.

Alan C. Cooper

2012-05-02T23:59:59.000Z

126

Instrumentation & control architecture applied for a hydrogen isotopes storage system  

Science Conference Proceedings (OSTI)

The properties of hydrogen storage used materials refers to their ability to high "connect" hydrogen, to have a large storage capacity, to be easily achievable and, if necessary, to allow its easy recovery. The metals and intermetallic compounds are ... Keywords: architecture, control system, hydrogen, isotopes, storage

Eusebiu Ilarian Ionete; Bogdan Monea

2011-09-01T23:59:59.000Z

127

Complex Hydrides for Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrides for Hydrides for Hydrogen Storage George Thomas, Consultant Sandia National Laboratories G. J. Thomas Efficient onboard hydrogen storage is a critical enabling technology for the use of hydrogen in vehicles * The low volumetric density of gaseous fuels requires a storage method which densifies the fuel. - This is particularly true for hydrogen because of its lower energy density relative to hydrocarbon fuels. * Storage methods result in additional weight and volume above that of the fuel. How do we achieve adequate stored energy in an efficient, safe and cost-effective system? G. J. Thomas However, the storage media must meet certain requirements: - reversible hydrogen uptake/release - lightweight - low cost - cyclic stability - rapid kinetic properties - equilibrium properties (P,T) consistent

128

High Throughput Combinatorial Screening of Biometic Metal-Organic Materials for Military Hydrogen-Storage Materials (New Joint Miami U/NREL DoD/DLA Project) (presentation)  

NLE Websites -- All DOE Office Websites (Extended Search)

Miami University/NREL DoD/DLA Project Miami University/NREL DoD/DLA Project High throughput combinatorial screening of biomimetic metal-organic materials for military hydrogen-storage applications Philip Parilla - NREL Joe Zhou, Dan Zhao - Miami U, Ohio Jeff Blackburn, Kevin O'Neill, Lin Simpson, Mike Heben - NREL Outline * Miami/NREL Project - Synthesis (Miami) - High Throughput Characterization (NREL) - Other Characterization * Other High Throughput Activities (NREL) - Parallel Sieverts - Parallel Gravimetric * Final Comments Overview of Miami/NREL Project * Goals - Development of H 2 storage materials based on MOFs, targeting 15 kJ/mole binding energy and high density of H 2 sites - Development of optical-based detection of adsorbed H 2 allowing rapid screening of samples * Approach - Combinatorial MOFs synthesis involving 8

129

Hydrogen storage on activated carbon. Final report  

DOE Green Energy (OSTI)

The project studied factors that influence the ability of carbon to store hydrogen and developed techniques to enhance that ability in naturally occurring and factory-produced commercial carbon materials. During testing of enhanced materials, levels of hydrogen storage were achieved that compare well with conventional forms of energy storage, including lead-acid batteries, gasoline, and diesel fuel. Using the best materials, an electric car with a modern fuel cell to convert the hydrogen directly to electricity would have a range of over 1,000 miles. This assumes that the total allowable weight of the fuel cell and carbon/hydrogen storage system is no greater than the present weight of batteries in an existing electric vehicle. By comparison, gasoline cars generally are limited to about a 450-mile range, and battery-electric cars to 40 to 60 miles. The project also developed a new class of carbon materials, based on polymers and other organic compounds, in which the best hydrogen-storing factors discovered earlier were {open_quotes}molecularly engineered{close_quotes} into the new materials. It is believed that these new molecularly engineered materials are likely to exceed the performance of the naturally occurring and manufactured carbons seen earlier with respect to hydrogen storage.

Schwarz, J.A. [Syracuse Univ., NY (United States). Dept. of Chemical Engineering and Materials Science

1994-11-01T23:59:59.000Z

130

Ultrafine hydrogen storage powders - Energy Innovation Portal  

A method of making hydrogen storage powder resistant to fracture in service involves forming a melt having the appropriate composition for the hydrogen storage ...

131

Ultrafine Hydrogen Storage Powders - Energy Innovation Portal  

Patent 6,074,453: Ultrafine hydrogen storage powders A method of making hydrogen storage powder resistant to fracture in service involves forming a melt having the ...

132

Fuel Cell Technologies Office: Hydrogen Compression, Storage...  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Compression, Storage, and Dispensing Cost...

133

Hydrogen storage composition and method  

DOE Patents (OSTI)

A hydrogen storage composition based on a metal hydride dispersed in an aerogel prepared by a sol-gel process. The starting material for the aerogel is an organometallic compound, including the alkoxysilanes, organometals of the form M(OR){sub X} where R is an organic ligand of the form C{sub n}H{sub 2n+1}, and organometals of the form MO{sub x}Ry where R is an alkyl group, where M is an oxide-forming metal, n, x and y are integers and y is two less than the valence of M. A sol is prepared by combining the starting material, alcohol, water, and an acid. The sol is conditioned to the proper viscosity and a hydride in the form of a fine powder is added. The mixture is polymerized and dried under supercritical conditions. The final product is a composition having a hydride uniformly dispersed throughout an inert, stable and highly porous matrix. It is capable of absorbing up to 30 motes of hydrogen per kilogram at room temperature and pressure, rapidly and reversibly. Hydrogen absorbed by the composition can be readily be recovered by heat or evacuation.

Wicks, G.G.; Heung, L.K.

1994-01-01T23:59:59.000Z

134

Hydrogen storage technology for metal hydrides  

DOE Green Energy (OSTI)

The advantages of using hydrogen as a secondary energy carrier are stated, and numerous factors pertinent to the technology of hydrogen storage via metal hydrides are briefly described. The technology is centered on iron-titanium hydride, FeTiH/sub x/, as the most practical choice for the safe and compact storage of hydrogen. Uses of hydride hydrogen as a fuel or energy carrier are given. The features of hydride reservoir designs are explained, and some performance data are given for two reservoirs constructed at BNL. Results of tests on the long-term behavior of FeTiH/sub x/ are presented along with information on pressure drop in a hydride bed. Two methods of accommodating hydride expansion are described. Other topics include: container materials selection, safety testing of FeTiH/sub x/, hydride materials development, storage systems work at BNL, the proposed Hydrogen-Halogen Energy Storage System, a proposed technique of storing hydrogen in hollow glass microspheres at very high pressure, and information on the commercial availability of materials and equipment for hydride hydrogen. Current development needs are included in the various sections.

Strickland, G

1978-06-01T23:59:59.000Z

135

U.S. Department of Energy Theory Focus Session on Hydrogen Storage Materials  

E-Print Network (OSTI)

Marriott, Crystal City, VA (In conjunction with the DOE Hydrogen Program Annual Merit Review, May 16-19) Co "kinetically reversible" Speakers: 4:05-4:30pm - Simulation of Kinetic Events at the Atomic Scale - Graeme Laboratory Topics to be addressed: Beyond the Atomic Scale: Longer length-/time-scale Modeling

136

Complex Hydrides for Hydrogen Storage  

DOE Green Energy (OSTI)

This report describes research into the use of complex hydrides for hydrogen storage. The synthesis of a number of alanates, (AIH4) compounds, was investigated. Both wet chemical and mechano-chemical methods were studied.

Slattery, Darlene; Hampton, Michael

2003-03-10T23:59:59.000Z

137

Prediction of Novel Hydrogen Storage Reactions  

NLE Websites -- All DOE Office Websites (Extended Search)

Kazutoshi Kazutoshi Miwa Computational Physics Lab. Toyota Central R&D Labs., Inc. Theory Focus Session on Hydrogen Storage Materials, 18 MAY 2006 Prediction of Novel Hydrogen Storage Reactions 0 40 80 120 160 200 0 5 10 15 20 mass%H kgH 2 NaBH 4 Li H MgH 2 MgCaH 3.7 Mg 2 FeH 6 (Ti,Cr,V)H 1.9 Mg 2 NiH 4 Zr(CrFe) 2 H 3.4 TiFeH 1.7 (Ti,Cr,V)H 1.1 LaNi 5 H 6 /m 3 Hydrogen storage alloys Complex hydrides LiBH 4 NaAlH 4 Mg(NH 2 ) 2 +4LiH 2003- NEDO project of "Development for Safe Utilization and Infrastructure of Hydrogen" LiNH 2 LiAlH 4 Hydrogen Storage Materials Target: 5.5 mass %, < 150℃ (2010), 9 mass % < 150 ℃ (2020) Lithium Borohydride, LiBH 4 Advantages ☆ light weight ☆ high capacity of hydrogen storage (14 mass %) Disadvantages ★ thermodynamically too stability (> 600 K) ★ poor reaction kinetics

138

Chemisorption On Nanoparticles: An Alternative Mechanism For Hydrogen Storage  

DOE Green Energy (OSTI)

We present first principles, computational predictions of a porous, nano-structured semiconductor material that will reversibly store hydrogen for fuel cell applications. The material is competitive with current metal hydride storage materials, but contains only carbon and silicon, reducing both its cost and environmental impact. Additionally, unlike metal hydrides, the core skeleton structure of this material is unaltered when cycling from full hydrogen storage to full hydrogen depletion, removing engineering complications associated with expansion/contraction of the material.

Williamson, A; Reboredo, F; Galli, G

2004-04-09T23:59:59.000Z

139

Nano-chemo-mechanics of advanced materials for hydrogen storage and lithium battery applications .  

E-Print Network (OSTI)

??Chemo-mechanics studies the material behavior and phenomena at the interface of mechanics and chemistry. Material failures due to coupled chemo-mechanical effects are serious roadblocks in (more)

Huang, Shan

2011-01-01T23:59:59.000Z

140

Ammonia-Borane: a Promising Material for Hydrogen Storage - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

0 0 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Larry G. Sneddon (Primary Contact), Martin Bluhm, Dan Himmelberger, William Ewing, Laif Alden, Emily Berkeley, Chang Won Yoon and Allegra Marchione University of Pennsylvania Department of Chemistry 231 S. 34 th Street Philadelphia, PA 19104-6323 Phone: (215) 898-8632 Email: lsneddon@sas.upenn.edu DOE Program Officer: Larry Rahn Phone: (301) 903-2508 Email: Larry.Rahn@science.doe.gov Subcontractors: R. Tom Baker, Richard Burchell, Felix Gaertner, Hassan Kalviri, Morgane Le Fur, Larena Menant, Giovanni Rachiero Matthew Rankin, Johannes Thomas,

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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141

Hydrogen Storage Technologies Roadmap, November 2005  

Fuel Cell Technologies Publication and Product Library (EERE)

Document describing plan for research into and development of hydrogen storage technology for transportation applications.

142

Layered Graphene Sheets Could Solve Hydrogen Storage ...  

Science Conference Proceedings (OSTI)

Layered Graphene Sheets Could Solve Hydrogen Storage Issues. For Immediate Release: March 16, 2010. ...

2011-11-28T23:59:59.000Z

143

Hydrogen fuel closer to reality because of storage advances  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen fuel closer to reality because of storage advances Hydrogen fuel closer to reality because of storage advances Hydrogen fuel closer to reality because of storage advances Advances made in rechargeable solid hydrogen fuel storage tanks. March 21, 2012 Field experiments on the Alamosa Canyon How best to achieve the benchmark of 300 miles of travel without refueling? It may be to use the lightweight compound ammonia-borane to carry the hydrogen. With hydrogen accounting for almost 20 percent of its weight, this stable, non-flammable compound is one of the highest-capacity materials for storing hydrogen. In a car, the introduction of a chemical catalyst would release the hydrogen as needed, thus avoiding on-board storage of large quantities of flammable hydrogen gas. When the ammonia-borane fuel is depleted of hydrogen, it would be regenerated at a

144

Fuel Cell Technologies Office: Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Fuel Cell Technologies Office: Hydrogen Storage to Fuel Cell Technologies Office: Hydrogen Storage to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Storage on Facebook Tweet about Fuel Cell Technologies Office: Hydrogen Storage on Twitter Bookmark Fuel Cell Technologies Office: Hydrogen Storage on Google Bookmark Fuel Cell Technologies Office: Hydrogen Storage on Delicious Rank Fuel Cell Technologies Office: Hydrogen Storage on Digg Find More places to share Fuel Cell Technologies Office: Hydrogen Storage on AddThis.com... Home Basics Current Technology DOE R&D Activities Quick Links Hydrogen Production Hydrogen Delivery Fuel Cells Technology Validation Manufacturing Codes & Standards Education Systems Analysis Contacts On-board hydrogen storage for transportation applications continues to be

145

Technical Assessment: Cryo-Compressed Hydrogen Storage  

E-Print Network (OSTI)

Technical Assessment: Cryo-Compressed Hydrogen Storage for Vehicular Applications October 30, 2006* U.S. Department of Energy Hydrogen Program *Revised June, 2008 #12;Table of Contents Introduction .....................................................................................................................................................................8 APPENDIX A: Review of Cryo-Compressed Hydrogen Storage Systems

146

Hydrogen Storage atHydrogen Storage at Lawrence Berkeley National LaboratoryLawrence Berkeley National Laboratory  

E-Print Network (OSTI)

Hydrogen Storage atHydrogen Storage at Lawrence Berkeley National LaboratoryLawrence Berkeley National Laboratory Presentation at thePresentation at the Hydrogen Storage Grand ChallengeHydrogen Storage expertise to hydrogen storage, fuel cells, and system integration issues ­Novel membranes and other

147

Hydrogen Storage by Polylithiated Molecules and  

E-Print Network (OSTI)

We study polylithiated molecules as building blocks for hydrogen storage materials, using first-principles calculations. CLi4 and OLi2 bind 12 and 10 hydrogen molecules, respectively, with an average binding energy of 0.10 and 0.13 eV, leading to gravimetric densities of 37.8 and 40.3 weight % H. Bonding between Li and C or O is strongly polar and H2 molecules attach to the partially charged Li atoms without dissociating, which is favorable for (de)hydrogenation kinetics. CLin and OLim molecules can be chemically bonded to graphene sheets to hinder the aggregation of such molecules. In particular B or Be doped graphene strongly bind the molecules without seriously affecting the hydrogen binding energy. It still leads to a hydrogen storage capacity in the range 5-8.5 wt. % H.

Sleyman Er; Gilles A. De Wijs; Geert Brocks

2009-01-01T23:59:59.000Z

148

Materials for Hydrogen Storage: Structure and Dynamics of Borane Ammonia Complex  

DOE Green Energy (OSTI)

The activation energies for rotations in low temperature orthorhombic ammonia borane were analyzed and characterized in terms of electronic structure theory. The perdeuterated, 11B- enriched ammonia borane 11BD3ND3 sample was synthesized and the structure was refined from neutron powder diffraction data at 175 K. This temperature has been chosen as median of the range of previously reported NMR measurements of these rotations. A representative molecular cluster model was assembled from the refined geometry and the activation energies were calculated and characterized by analysis of the environmental factors that control the rotational dynamics. The barrier for independent NH3 rotation, Ea = 12.7 kJ/mol, largely depends on the molecular conformational torsion in the solid state geometry. The barrier for independent BH3 rotation, Ea = 38.3 kJ/mol, results from the summation of the effect of molecular torsion and large repulsive intermolecular hydrogen-hydrogen interactions. However, a barrier of Ea = 31.1 kJ/mol was calculated for rotation with preserved molecular conformation. Analysis of the barrier heights and the corresponding rotational pathways shows that rotation of the BH3 group involves strongly correlated rotation of the NH3 end of the molecule. This observation suggests that the barrier from previously reported measurement of BH3 rotation, corresponds to H3BNH3 correlated rotation. Support for this work by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Chemical Sciences Division is gratefully acknowledged. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy.

Parvanov, Venci M.; Schenter, Gregory K.; Hess, Nancy J.; Daemen, Luke L.; Hartl, Monika A.; Stowe, Ashley C.; Camaioni, Donald M.; Autrey, Thomas

2008-08-04T23:59:59.000Z

149

Neutron Characterization in Support of the DOE Hydrogen Storage...  

NLE Websites -- All DOE Office Websites (Extended Search)

gained from these studies will be applied toward the design and synthesis of hydrogen-storage materials that meet the following DOE 2017 storage targets: Specific energy: 1.8 kWh...

150

Hydrogen Compatibility of Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Compatibility of Materials Compatibility of Materials August 13, 2013 DOE EERE Fuel Cell Technologies Office Webinar Chris San Marchi Sandia National Laboratories Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000 SAND2013-6278P 2 Webinar Objectives * Provide context for hydrogen embrittlement and hydrogen compatibility of materials - Distinguish embrittlement, compatibility and suitability - Examples of hydrogen embrittlement * Historical perspective - Previous work on hydrogen compatibility - Motivation of "Materials Guide" * Identify the landscape of materials compatibility documents

151

Hydrogen Compatibility of Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

materials data related to hydrogen embrittlement - Modeled after existing metals handbooks - Data culled from open literature * Peer-reviewed scientific articles * Public...

152

Final Report: Metal Perhydrides for Hydrogen Storage  

DOE Green Energy (OSTI)

Hydrogen is a promising energy source for the future economy due to its environmental friendliness. One of the important obstacles for the utilization of hydrogen as a fuel source for applications such as fuel cells is the storage of hydrogen. In the infrastructure of the expected hydrogen economy, hydrogen storage is one of the key enabling technologies. Although hydrogen possesses the highest gravimetric energy content (142 KJ/g) of all fuels, its volumetric energy density (8 MJ/L) is very low. It is desired to increase the volumetric energy density of hydrogen in a system to satisfy various applications. Research on hydrogen storage has been pursed for many years. Various storage technologies, including liquefaction, compression, metal hydride, chemical hydride, and adsorption, have been examined. Liquefaction and high pressure compression are not desired due to concerns related to complicated devices, high energy cost and safety. Metal hydrides and chemical hydrides have high gravimetric and volumetric energy densities but encounter issues because high temperature is required for the release of hydrogen, due to the strong bonding of hydrogen in the compounds. Reversibility of hydrogen loading and unloading is another concern. Adsorption of hydrogen on high surface area sorbents such as activated carbon and organic metal frameworks does not have the reversibility problem. But on the other hand, the weak force (primarily the van der Waals force) between hydrogen and the sorbent yields a very small amount of adsorption capacity at ambient temperature. Significant storage capacity can only be achieved at low temperatures such as 77K. The use of liquid nitrogen in a hydrogen storage system is not practical. Perhydrides are proposed as novel hydrogen storage materials that may overcome barriers slowing advances to a hydrogen fuel economy. In conventional hydrides, e.g. metal hydrides, the number of hydrogen atoms equals the total valence of the metal ions. One LiH molecule contains one hydrogen atom because the valence of a Li ion is +1. One MgH2 molecule contains two hydrogen atoms because the valence of a Mg ion is +2. In metal perhydrides, a molecule could contain more hydrogen atoms than expected based on the metal valance, i.e. LiH1+n and MgH2+n (n is equal to or greater than 1). When n is sufficiently high, there will be plenty of hydrogen storage capacity to meet future requirements. The existence of hydrogen clusters, Hn+ (n = 5, 7, 9, 11, 13, 15) and transition metal ion-hydrogen clusters, M+(H2)n (n = 1-6), such as Sc(H2)n+, Co(H2)n+, etc., have assisted the development of this concept. Clusters are not stable species. However, their existence stimulates our approach on using electric charges to enhance the hydrogen adsorption in a hydrogen storage system in this study. The experimental and modeling work to verify it are reported here. Experimental work included the generation of cold hydrogen plasma through a microwave approach, synthesis of sorbent materials, design and construction of lab devices, and the determination of hydrogen adsorption capacities on various sorbent materials under various electric field potentials and various temperatures. The results consistently show that electric potential enhances the adsorption of hydrogen on sorbents. NiO, MgO, activated carbon, MOF, and MOF and platinum coated activated carbon are some of the materials studied. Enhancements up to a few hundred percents have been found. In general, the enhancement increases with the electrical potential, the pressure applied, and the temperature lowered. Theoretical modeling of the hydrogen adsorption on the sorbents under the electric potential has been investigated with the density functional theory (DFT) approach. It was found that the interaction energy between hydrogen and sorbent is increased remarkably when an electric field is applied. This increase of binding energy offers a potential solution for DOE when looking for a compromise between chemisorption and physisorption for hydrogen storage. Bonding of chemisorption is too

Hwang, J-Y.; Shi, S.; Hackney, S.; Swenson, D.; Hu, Y.

2011-07-26T23:59:59.000Z

153

NREL: Hydrogen and Fuel Cells Research - Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage Storing hydrogen for renewable energy technologies can be challenging, especially for intermittent resources such as solar and wind. Whether for stationary,...

154

NIST: Neutron Tomography of Hydrogen Storage Bed  

Science Conference Proceedings (OSTI)

... Future hydrogen fuel cell vehicles will require hydrogen storage vessels that ... will require understanding the coupled heat and mass transport system ...

2013-07-23T23:59:59.000Z

155

NIST Hydrogen Storage in Thin Films  

Science Conference Proceedings (OSTI)

Hydrogen Storage Optimization in Thin Film Combinatorial Alloys. ... Magnesium Thin Films," International Journal of Hydrogen Energy, doi:10.1016/j ...

2013-04-01T23:59:59.000Z

156

NIST: Neutron Imaging Facility - Hydrogen Storage  

Science Conference Proceedings (OSTI)

Hydrogen Storage. Ultimately if a fuel cell vehicle is to function efficiently it must have an efficient means of storing and delivering hydrogen. ...

157

Status & Direction for Onboard Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Economy Manufacturing for the Hydrogen Economy Status & Direction for Onboard Hydrogen Storage Andy Abele Quantum Fuel Systems Technologies Worldwide, Inc. July 2005 This...

158

Implementing a Hydrogen Energy Infrastructure: Storage Options and System Design  

E-Print Network (OSTI)

challenge. Hydrogen energy storage density has been steadilya Hydrogen Energy Infrastructure: Storage Options and Systema Hydrogen Energy Infrastructure: Storage Options and System

Ogden, J; Yang, Christopher

2005-01-01T23:59:59.000Z

159

Implementing a Hydrogen Energy Infrastructure: Storage Options and System Design  

E-Print Network (OSTI)

as a key challenge. Hydrogen energy storage density has beena Hydrogen Energy Infrastructure: Storage Options and Systema Hydrogen Energy Infrastructure: Storage Options and System

Ogden, J; Yang, Christopher

2005-01-01T23:59:59.000Z

160

Hydrogen Fuel Cells and Storage Technology: Fundamental Research for Optimization of Hydrogen Storage and Utilization  

SciTech Connect

Design and development of improved low-cost hydrogen fuel cell catalytic materials and high-capacity hydrogenn storage media are paramount to enabling the hydrogen economy. Presently, effective and durable catalysts are mostly precious metals in pure or alloyed form and their high cost inhibits fuel cell applications. Similarly, materials that meet on-board hydrogen storage targets within total mass and volumetric constraints are yet to be found. Both hydrogen storage performance and cost-effective fuel cell designs are intimately linked to the electronic structure, morphology and cost of the chosen materials. The FCAST Project combined theoretical and experimental studies of electronic structure, chemical bonding, and hydrogen adsorption/desorption characteristics of a number of different nanomaterials and metal clusters to develop better fundamental understanding of hydrogen storage in solid state matrices. Additional experimental studies quantified the hydrogen storage properties of synthesized polyaniline(PANI)/Pd composites. Such conducting polymers are especially interesting because of their high intrinsic electron density and the ability to dope the materials with protons, anions, and metal species. Earlier work produced contradictory results: one study reported 7% to 8% hydrogen uptake while a second study reported zero hydrogen uptake. Cost and durability of fuel cell systems are crucial factors in their affordability. Limits on operating temperature, loss of catalytic reactivity and degradation of proton exchange membranes are factors that affect system durability and contribute to operational costs. More cost effective fuel cell components were sought through studies of the physical and chemical nature of catalyst performance, characterization of oxidation and reduction processes on system surfaces. Additional development effort resulted in a new hydrocarbon-based high-performance sulfonated proton exchange membrane (PEM) that can be manufactured at low cost and accompanied by improved mechanical and thermal stability.

Perret, Bob; Heske, Clemens; Nadavalath, Balakrishnan; Cornelius, Andrew; Hatchett, David; Bae, Chusung; Pang, Tao; Kim, Eunja; Hemmers, Oliver

2011-03-28T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

DOE Hydrogen Analysis Repository: Hydrogen for Energy Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen for Energy Storage Hydrogen for Energy Storage Project Summary Full Title: Cost and GHG Implications of Hydrogen for Energy Storage Project ID: 260 Principal Investigator: Darlene Steward Brief Description: The levelized cost of energy (LCOE) of the most promising and/or mature energy storage technologies was compared with the LCOE of several hydrogen energy storage configurations. In addition, the cost of using the hydrogen energy storage system to produce excess hydrogen was evaluated. The use of hydrogen energy storage in conjunction with an isolated wind power plant-and its effect on electricity curtailment, credit for avoided GHG emissions, and LCOE-was explored. Keywords: Energy storage; Hydrogen; Electricity Performer Principal Investigator: Darlene Steward

162

Integrated Hydrogen Storage System Model  

NLE Websites -- All DOE Office Websites (Extended Search)

WSRC-TR-2007-00440, REVISION 0 WSRC-TR-2007-00440, REVISION 0 Keywords: Hydrogen Kinetics, Hydrogen Storage Vessel Metal Hydride Retention: Permanent Integrated Hydrogen Storage System Model Bruce J. Hardy November 16, 2007 Washington Savannah River Company Savannah River Site Aiken, SC 29808 Prepared for the U.S. Department of Energy Under Contract Number DEAC09-96-SR18500 DISCLAIMER This report was prepared for the United States Department of Energy under Contract No. DE-AC09-96SR18500 and is an account of work performed under that contract. Neither the United States Department of Energy, nor WSRC, nor any of their employees makes any warranty, expressed or implied, or assumes any legal liability or responsibility for accuracy, completeness, or usefulness, of any information,

163

Cost Analysis of Hydrogen Storage Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Cost Analysis of Hydrogen Storage Systems Storage Systems TIAX LLC 15 Acorn Park Cambridge, MA 02140-2390 Tel. 617- 498-5000 Fax 617-498-7200 www.TIAXLLC.com Reference:...

164

Cryo-Hydrogen Storage Workshop Welcome  

NLE Websites -- All DOE Office Websites (Extended Search)

Cryo-Hydrogen Storage Workshop Ned T. Stetson Acting Hydrogen Storage Team Lead Fuel Cells Technologies Program U.S. Department of Energy February 15, 2011 Crystal Gateway Marriott...

165

Hydrogen Storage in Microporous Coordination Solids with ...  

Science Conference Proceedings (OSTI)

... Hydrogen Storage in Microporous Coordination Solids with Exposed Metal Sites. Jeffrey R. Long, Dept. of Chemistry, University ...

166

Hydrogen Storage in Wind Turbine Towers  

DOE Green Energy (OSTI)

Low-cost hydrogen storage is recognized as a cornerstone of a renewables-hydrogen economy. Modern utility-scale wind turbine towers are typically conical steel structures that, in addition to supporting the rotor, could be used to store hydrogen. This study has three objectives: (1) Identify the paramount considerations associated with using a wind turbine tower for hydrogen storage; (2)Propose and analyze a cost-effective design for a hydrogen-storing tower; and (3) Compare the cost of storage in hydrogen towers to the cost of storage in conventional pressure vessels. The paramount considerations associated with a hydrogen tower are corrosion (in the form of hydrogen embrittlement) and structural failure (through bursting or fatigue life degradation). Although hydrogen embrittlement (HE) requires more research, it does not appear to prohibit the use of turbine towers for hydrogen storage. Furthermore, the structural modifications required to store hydrogen in a tower are not cost prohibitive.

Kottenstette, R.; Cotrell, J.

2003-09-01T23:59:59.000Z

167

Chemical Hydrides for Hydrogen Storage in Fuel Cell Applications  

Science Conference Proceedings (OSTI)

Due to its high hydrogen storage capacity (up to 19.6% by weight for the release of 2.5 molar equivalents of hydrogen gas) and its stability under typical ambient conditions, ammonia borane (AB) is a promising material for chemical hydrogen storage for fuel cell applications in transportation sector. Several systems models for chemical hydride materials such as solid AB, liquid AB and alane were developed and evaluated at PNNL to determine an optimal configuration that would meet the 2010 and future DOE targets for hydrogen storage. This paper presents an overview of those systems models and discusses the simulation results for various transient drive cycle scenarios.

Devarakonda, Maruthi N.; Brooks, Kriston P.; Ronnebro, Ewa; Rassat, Scot D.; Holladay, Jamelyn D.

2012-04-16T23:59:59.000Z

168

U.S. Department of Energy Theorty Focus Session on Hydrogen Storage...  

NLE Websites -- All DOE Office Websites (Extended Search)

Theory Focus Session on Hydrogen Storage Materials Office of Hydrogen, Fuel Cells and Infrastructure Technologies, Energy Efficiency and Renewable Energy Office of Basic Energy...

169

Modified borohydrides for reversible hydrogen storage  

DOE Green Energy (OSTI)

In attempt to develop lithium borohydrides as the reversible hydrogen storage materials with the high capacity, the feasibility to reduce dehydrogenation temperature of the lithium borohydride and moderate rehydrogenation condition has been explored. The commercial available lithium borohydride has been modified by ball milling with metal oxides and metal chlorides as the additives. The modified lithium borohydrides release 9 wt% hydrogen starting from 473K. The dehydrided modified lithium borohydrides absorb 7-9 wt% hydrogen at 873K and 7 MPa. The additive modification reduces dehydriding temperature from 673K to 473K and moderates rehydrogenation conditions to 923K and 15 MPa. XRD and SEM analysis discovered the formation of the intermediate compound TiB{sub 2} that may plays the key role in change the reaction path resulting the lower dehydriding temperature and reversibility. The reversible hydrogen storage capacity of the oxide modified lithium borohydrides decreases gradually during hydriding-dehydriding cycling due to the lost of the boron during dehydrogenation. But, it can be prevented by selecting the suitable additive, forming intermediate boron compounds and changing the reaction path. The additives reduce dehydriding temperature and improve the reversibility, it also reduces the hydrogen storage capacity. The best compromise can be reached by optimization of the additive loading and introducing new process other than ball milling.

Au, Ming

2005-08-29T23:59:59.000Z

170

Thermal energy storage material  

DOE Patents (OSTI)

A thermal energy storage material which is stable at atmospheric temperature and pressure and has a melting point higher than 32.degree.F. is prepared by dissolving a specific class of clathrate forming compounds, such as tetra n-propyl or tetra n-butyl ammonium fluoride, in water to form a substantially solid clathrate. The resultant thermal energy storage material is capable of absorbing heat from or releasing heat to a given region as it transforms between solid and liquid states in response to temperature changes in the region above and below its melting point.

Leifer, Leslie (Hancock, MI)

1976-01-01T23:59:59.000Z

171

Hydrogen Storage in Metal-Organic Frameworks  

DOE Green Energy (OSTI)

Conventional storage of large amounts of hydrogen in its molecular form is difficult and expensive because it requires employing either extremely high pressure gas or very low temperature liquid. Because of the importance of hydrogen as a fuel, the DOE has set system targets for hydrogen storage of gravimetric (5.5 wt%) and volumetric (40 g L-1) densities to be achieved by 2015. Given that these are system goals, a practical material will need to have higher capacity when the weight of the tank and associated cooling or regeneration system is considered. The size and weight of these components will vary substantially depending on whether the material operates by a chemisorption or physisorption mechanism. In the latter case, metal-organic frameworks (MOFs) have recently been identified as promising adsorbents for hydrogen storage, although little data is available for their sorption behavior. This grant was focused on the study of MOFs with these specific objectives. (1) To examine the effects of functionalization, catenation, and variation of the metal oxide and organic linkers on the low-pressure hydrogen adsorption properties of MOFs. (2) To develop a strategy for producing MOFs with high surface area and porosity to reduce the dead space and increase the hydrogen storage capacity per unit volume. (3) To functionalize MOFs by post synthetic functionalization with metals to improve the adsorption enthalpy of hydrogen for the room temperature hydrogen storage. This effort demonstrated the importance of open metal sites to improve the adsorption enthalpy by the systematic study, and this is also the origin of the new strategy, which termed isoreticular functionalization and metalation. However, a large pore volume is still a prerequisite feature. Based on our principle to design highly porous MOFs, guest-free MOFs with ultrahigh porosity have been experimentally synthesized. MOF-210, whose BET surface area is 6240 m2 g-1 (the highest among porous solids), takes up 15 wt% of total H2 uptake at 80 bar and 77 K. More importantly, the total H2 uptake by MOF-210 was 2.7 wt% at 80 bar and 298 K, which is the highest number reported for physisorptive materials.

Omar M. Yaghi

2012-04-26T23:59:59.000Z

172

Hydrogen Storage Systems Analysis Meeting: Summary Report, March 29, 2005  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage Systems Analysis Meeting Hydrogen Storage Systems Analysis Meeting 955 L'Enfant Plaza North, SW, Suite 6000 Washington, DC 20024-2168 March 29, 2005 SUMMARY REPORT Compiled by Romesh Kumar Argonne National Laboratory June 20, 2005 SUMMARY REPORT Hydrogen Storage Systems Analysis Meeting March 29, 2005 955 L'Enfant Plaza, North, SW, Suite 6000 Washington, DC 20024-2168 Meeting Objectives The objective of this meeting was to familiarize the DOE research community involved in hydrogen storage materials and process development with the systems analysis work being carried out within the DOE program. In particular, Argonne National Laboratory (ANL) has been tasked to develop models of on-board and off-board hydrogen storage systems based on the various materials and technologies being developed at the DOE Centers of Excellence and

173

Hydrogen Storage Systems Analysis Working Group Meeting: Summary Report  

NLE Websites -- All DOE Office Websites (Extended Search)

Held in Conjunction with the DOE Hydrogen Program Annual Merit Review Crystal Gateway Marriott, Arlington, VA June 11, 2008 SUMMARY REPORT Compiled by Romesh Kumar Argonne National Laboratory and Elvin Yzugullu Sentech, Inc. July 18, 2008 SUMMARY REPORT Hydrogen Storage Systems Analysis Working Group Meeting June 11, 2008 Crystal Gateway Marriott, Arlington, VA Meeting Objectives This meeting was one of a continuing series of biannual meetings of the Hydrogen Storage Systems Analysis Working Group (SSAWG). The objective of these meetings is to bring together the DOE research community involved in systems analysis of hydrogen storage materials and processes for information exchange and to update the researchers on related

174

Nanoporous Metal-Inorganic Materials for Storage and Capture ...  

Nanoporous Metal-Inorganic Materials for Storage and Capture of Hydrogen, Carbon Dioxide (CO2) and Other Gases Lawrence Berkeley National Laboratory

175

Process for synthesis of ammonia borane for bulk hydrogen storage  

The AB product shows promise as a chemical hydrogen storage material for fuel cell powered ... Contract DE-AC0676RLO-1830 awarded by the U.S. Department of Energy.

176

High-Throughput/Combinatorial Techniques in Hydrogen Storage...  

NLE Websites -- All DOE Office Websites (Extended Search)

High-ThroughputCombinatorial Techniques in Hydrogen Storage Materials R&D Ned Stetson, Larry Blair 1 , Grace Ordaz, Carole Read, George Thomas 2 , and Sunita Satyapal Suite 900,...

177

Electronic Properties of Hydrogen Storage Materials with Photon-in/Photon-out Soft-X-Ray Spectroscopy  

DOE Green Energy (OSTI)

The applications of resonant soft X-ray emission spectroscopy on a variety of carbon systems have yielded characteristic fingerprints. With high-resolution monochromatized synchrotron radiation excitation, resonant inelastic X-ray scattering has emerged as a new source of information about electronic structure and excitation dynamics. Photon-in/photon-out soft-X-ray spectroscopy is used to study the electronic properties of fundamental materials, nanostructure, and complex hydrides and will offer potential in-depth understanding of chemisorption and/or physisorption mechanisms of hydrogen adsorption/desorption capacity and kinetics.

Guo, Jinghua

2008-09-22T23:59:59.000Z

178

Hydrogen Storage Systems Analysis Working Group Meeting: Summary Report  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage Systems Analysis Working Group Meeting Hydrogen Storage Systems Analysis Working Group Meeting Argonne DC Offices L'Enfant Plaza, Washington, DC December 4, 2007 SUMMARY REPORT Compiled by Romesh Kumar Argonne National Laboratory and Kristin Deason Sentech, Inc. January 16, 2008 SUMMARY REPORT Hydrogen Storage Systems Analysis Working Group Meeting December 4, 2007 Argonne DC Offices, L'Enfant Plaza, Washington, DC Meeting Objectives This meeting was one of a continuing series of biannual meetings of the Hydrogen Storage Systems Analysis Working Group (SSAWG). The objective of these meetings is to bring together the DOE research community involved in systems analysis of hydrogen storage materials and processes for information exchange and to update the researchers on related developments within the DOE program. A major thrust of these meetings is to leverage

179

Amineborane Based Chemical Hydrogen Storage - Final Report  

SciTech Connect

The development of efficient and safe methods for hydrogen storage is a major hurdle that must be overcome to enable the use of hydrogen as an alternative energy carrier. The objectives of this project in the DOE Center of Excellence in Chemical Hydride Storage were both to develop new methods for on-demand, low temperature hydrogen release from chemical hydrides and to design high-conversion off-board methods for chemical hydride regeneration. Because of their reactive protic (N-H) and hydridic (B-H) hydrogens and high hydrogen contents, amineboranes such as ammonia borane, NH3BH3 (AB), 19.6-wt% H2, and ammonia triborane NH3B3H7 (AT), 17.7-wt% H2, were initially identified by the Center as promising, high-capacity chemical hydrogen storage materials with the potential to store and deliver molecular hydrogen through dehydrogenation and hydrolysis reactions. In collaboration with other Center partners, the Penn project focused both on new methods to induce amineborane H2-release and on new strategies for the regeneration the amineborane spent-fuel materials. The Penn approach to improving amineborane H2-release focused on the use of ionic liquids, base additives and metal catalysts to activate AB dehydrogenation and these studies successfully demonstrated that in ionic liquids the AB induction period that had been observed in the solid-state was eliminated and both the rate and extent of AB H2-release were significantly increased. These results have clearly shown that, while improvements are still necessary, many of these systems have the potential to achieve DOE hydrogen-storage goals. The high extent of their H2-release, the tunability of both their H2 materials weight-percents and release rates, and their product control that is attained by either trapping or suppressing unwanted volatile side products, such as borazine, continue to make AB/ionic-liquid based systems attractive candidates for chemical hydrogen storage applications. These studies also demonstrated that H2-release from chemical hydrides can occur by a number of different mechanistic pathways and strongly suggest that optimal chemical hydride based H2release systems may require the use of synergistic dehydrogenation methods to induce H2-loss from chemically different intermediates formed during release reactions. The efficient regeneration of ammonia borane from BNHx spent fuel is one of the most challenging problems that will have to be overcome in order to utilize AB-based hydrogen storage. Three Center partners, LANL, PNNL and Penn, each took different complimentary approaches to AB regeneration. The Penn approach focused on a strategy involving spent-fuel digestion with superacidic acids to produce boron-halides (BX3) that could then be converted to AB by coordination/reduction/displacement processes. While the Penn boron-halide reduction studies successfully demonstrated that a dialkylsulfide-based coordination/reduction/displacement process gave quantitative conversions of BBr3 to ammonia borane with efficient and safe product separations, the fact that AB spent-fuels could not be digested in good yields to BX3 halides led to a No-Go decision on this overall AB-regeneration strategy.

Sneddon, Larry G.

2011-04-21T23:59:59.000Z

180

NETL: Hydrogen & Clean Fuels - Abstract : Hydrogen Storage on...  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage on Carbon Nanotubes Single-walled carbon nanotubes are remarkable forms of elemental carbon. Their unique properties have stimulated the imaginations of many...

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Activated Aluminum Hydride Hydrogen Storage Compositions ...  

Aluminum hydride is the best known alane and has been known for over 60 years. It is potentially a very attractive medium for onboard automotive hydrogen storage ...

182

Activated aluminum hydride hydrogen storage compositions and ...  

In one aspect, the invention relates to activated aluminum hydride hydrogen storage compositions containing aluminum hydride in the presence of, or absence of ...

183

Summary of DOE Hydrogen Storage Workshop  

NLE Websites -- All DOE Office Websites (Extended Search)

DOE Hydrogen Storage Workshop Argonne National Laboratory August 14-15, 2002 About one hundred representatives from DOE, the national laboratories, industry and universities...

184

Fuel Cell Technologies Office: Hydrogen Compression, Storage...  

NLE Websites -- All DOE Office Websites (Extended Search)

of Energy's (DOE's) Argonne National Laboratory (ANL) held a Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop on March 20-21, 2013, in Argonne, Illinois....

185

Theoretical Studies of Hydrogen Storage Alloys.  

DOE Green Energy (OSTI)

Theoretical calculations were carried out to search for lightweight alloys that can be used to reversibly store hydrogen in mobile applications, such as automobiles. Our primary focus was on magnesium based alloys. While MgH{sub 2} is in many respects a promising hydrogen storage material, there are two serious problems which need to be solved in order to make it useful: (i) the binding energy of the hydrogen atoms in the hydride is too large, causing the release temperature to be too high, and (ii) the diffusion of hydrogen through the hydride is so slow that loading of hydrogen into the metal takes much too long. In the first year of the project, we found that the addition of ca. 15% of aluminum decreases the binding energy to the hydrogen to the target value of 0.25 eV which corresponds to release of 1 bar hydrogen gas at 100 degrees C. Also, the addition of ca. 15% of transition metal atoms, such as Ti or V, reduces the formation energy of interstitial H-atoms making the diffusion of H-atoms through the hydride more than ten orders of magnitude faster at room temperature. In the second year of the project, several calculations of alloys of magnesium with various other transition metals were carried out and systematic trends in stability, hydrogen binding energy and diffusivity established. Some calculations of ternary alloys and their hydrides were also carried out, for example of Mg{sub 6}AlTiH{sub 16}. It was found that the binding energy reduction due to the addition of aluminum and increased diffusivity due to the addition of a transition metal are both effective at the same time. This material would in principle work well for hydrogen storage but it is, unfortunately, unstable with respect to phase separation. A search was made for a ternary alloy of this type where both the alloy and the corresponding hydride are stable. Promising results were obtained by including Zn in the alloy.

Jonsson, Hannes

2012-03-22T23:59:59.000Z

186

DEVELOPMENT OF DOPED NANOPOROUS CARBONS FOR HYDROGEN STORAGE  

DOE Green Energy (OSTI)

Hydrogen storage materials based on the hydrogen spillover mechanism onto metal-doped nanoporous carbons are studied, in an effort to develop materials that store appreciable hydrogen at ambient temperatures and moderate pressures. We demonstrate that oxidation of the carbon surface can significantly increase the hydrogen uptake of these materials, primarily at low pressure. Trace water present in the system plays a role in the development of active sites, and may further be used as a strategy to increase uptake. Increased surface density of oxygen groups led to a significant enhancement of hydrogen spillover at pressures less than 100 milibar. At 300K, the hydrogen uptake was up to 1.1 wt. % at 100 mbar and increased to 1.4 wt. % at 20 bar. However, only 0.4 wt% of this was desorbable via a pressure reduction at room temperature, and the high lowpressure hydrogen uptake was found only when trace water was present during pretreatment. Although far from DOE hydrogen storage targets, storage at ambient temperature has significant practical advantages oner cryogenic physical adsorbents. The role of trace water in surface modification has significant implications for reproducibility in the field. High-pressure in situ characterization of ideal carbon surfaces in hydrogen suggests re-hybridization is not likely under conditions of practical interest. Advanced characterization is used to probe carbon-hydrogen-metal interactions in a number of systems and new carbon materials have been developed.

Angela D. Lueking; Qixiu Li; John V. Badding; Dania Fonseca; Humerto Gutierrez; Apurba Sakti; Kofi Adu; Michael Schimmel

2010-03-31T23:59:59.000Z

187

24/07/20031 Hydrogen Storage  

E-Print Network (OSTI)

24/07/20031 Slide no. Hydrogen Storage with Emphasis on Metal Hydrides Allan Schrøder Pedersen. A need for energy storage may be foreseen if we will not rely on fossils · Buffer between consumption and production · Transport · Hydrogen may well be such an intermediate energy carrier #12;24/07/20037 Slide no

188

DOE Hydrogen Analysis Repository: Hydrogen Storage Systems Cost Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage Systems Cost Analysis Hydrogen Storage Systems Cost Analysis Project Summary Full Title: Cost Analysis of Hydrogen Storage Systems Project ID: 207 Principal Investigator: Stephen Lasher Keywords: Hydrogen storage; costs Purpose The purpose of this analysis is to help guide researchers and developers toward promising R&D and commercialization pathways by evaluating the various on-board hydrogen storage technologies on a consistent basis. Performer Principal Investigator: Stephen Lasher Organization: TIAX, LLC Address: 15 Acorn Park Cambridge, MA 02140 Telephone: 617-498-6108 Email: lasher.stephen@tiaxllc.com Additional Performers: Matt Hooks, TIAX, LLC; Mark Marion, TIAX, LLC; Kurtis McKenney, TIAX, LLC; Bob Rancatore, TIAX, LLC; Yong Yang, TIAX, LLC Sponsor(s) Name: Sunita Satyapal

189

Hydrogen Storage Systems Analysis Meeting 955 L'Enfant Plaza North, SW, Suite 6000  

E-Print Network (OSTI)

Hydrogen Storage Systems Analysis Meeting 955 L'Enfant Plaza North, SW, Suite 6000 Washington, DC, 2005 #12;SUMMARY REPORT Hydrogen Storage Systems Analysis Meeting March 29, 2005 955 L'Enfant Plaza was to familiarize the DOE research community involved in hydrogen storage materials and process development

190

Hydrogen Storage Systems Analysis Working Group Meeting Argonne National Laboratory DC Offices  

E-Print Network (OSTI)

Hydrogen Storage Systems Analysis Working Group Meeting Argonne National Laboratory DC Offices 955 REPORT Hydrogen Storage Systems Analysis Working Group Meeting December 12, 2006 955 L'Enfant Plaza research community involved in systems analysis of hydrogen storage materials and processes for information

191

Autothermal hydrogen storage and delivery systems  

DOE Patents (OSTI)

Processes are provided for the storage and release of hydrogen by means of dehydrogenation of hydrogen carrier compositions where at least part of the heat of dehydrogenation is provided by a hydrogen-reversible selective oxidation of the carrier. Autothermal generation of hydrogen is achieved wherein sufficient heat is provided to sustain the at least partial endothermic dehydrogenation of the carrier at reaction temperature. The at least partially dehydrogenated and at least partially selectively oxidized liquid carrier is regenerated in a catalytic hydrogenation process where apart from an incidental employment of process heat, gaseous hydrogen is the primary source of reversibly contained hydrogen and the necessary reaction energy.

Pez, Guido Peter (Allentown, PA); Cooper, Alan Charles (Macungie, PA); Scott, Aaron Raymond (Allentown, PA)

2011-08-23T23:59:59.000Z

192

Hydrogen compatibility of structural materials for energy storage and transmission. Annual report, October 1, 1978-September 30, 1979  

Science Conference Proceedings (OSTI)

This annual report documents the activities and contributions accomplished during FY79 on a research contract aimed at assessing the feasibility of transporting hydrogen gas through the existing natural gas pipeline network. Studies of the hydrogen-induced degradation of pipeline steels reveal that hydrogen can be transported in these steels if a number of precautions are taken. These issues are discussed and plans for further research are presented.

Hoover, W.R.; Iannucci, J.J.; Robinson, S.L.; Spingarn, J.R.; Stoltz, R.E.

1980-02-01T23:59:59.000Z

193

The Influence of Graphene Curvature on Hydrogen Adsorption: Towards Hydrogen Storage Devices  

E-Print Network (OSTI)

The ability of atomic hydrogen to chemisorb on graphene makes the latter a promising material for hydrogen storage. Based on scanning tunneling microscopy techniques, we report on site-selective adsorption of atomic hydrogen on convexly curved regions of monolayer graphene grown on SiC(0001). This system exhibits an intrinsic curvature owing to the interaction with the substrate. We show that at low coverage hydrogen is found on convex areas of the graphene lattice. No hydrogen is detected on concave regions. These findings are in agreement with theoretical models which suggest that both binding energy and adsorption barrier can be tuned by controlling the local curvature of the graphene lattice. This curvature-dependence combined with the known graphene flexibility may be exploited for storage and controlled release of hydrogen at room temperature making it a valuable candidate for the implementation of hydrogen-storage devices.

Goler, Sarah; Tozzini, Valentina; Piazza, Vincenzo; Mashoff, Torge; Beltram, Fabio; Pellegrini, Vittorio; Heun, Stefan

2013-01-01T23:59:59.000Z

194

Hydrogen transport and storage in engineered glass microspheres  

DOE Green Energy (OSTI)

New, high-strength, hollow, glass microspheres filled with pressurized hydrogen exhibit storage densities which make them attractive for bulk hydrogen storage and transport. The hoop stress at failure of our engineered glass microspheres is about 150,000 psi, permitting a three-fold increase in pressure limit and storage capacity above commercial microspheres, which fail at wall stresses of 50,000 psi. For this project, microsphere material and structure will be optimized for storage capacity and charge/discharge kinetics to improve their commercial practicality. Microsphere production scale up will be performed, directed towards large-scale commercial use. Our analysis relating glass microspheres for hydrogen transport with infrastructure and economics` indicate that pressurized microspheres can be economically competitive with other forms of bulk rail and truck transport such as hydride beds, cryocarbons and pressurized tube transports. For microspheres made from advanced materials and processes, analysis will also be performed to identify the appropriate applications of the microspheres considering property variables, and different hydrogen infrastructure, end use, production and market scenarios. This report presents some of the recent modelling results for large beds of glass microspheres in hydrogen storage applications. It includes plans for experiments to identify the properties relevant to large-bed hydrogen transport and storage applications, of the best, currently producible, glass microspheres. This work began in March, 1994. Project successes will be manifest in the matching of cur-rent glass microspheres with a useful application in hydrogen bulk transport and storage, and in developing microsphere materials and processes that increase the storage density and reduce the storage energy requirement.

Rambach, G.D.

1994-04-20T23:59:59.000Z

195

Hydrogen Storage Properties of a Nanostructured Palladium Alloy ...  

Science Conference Proceedings (OSTI)

Additionally, results on hydrogen storage capacity and hydrogen absorption kinetics will ... Birnessite MnO2 Nanoflakes for Efficient Energy Storage at Elevated...

196

Ca, Li and Mg Based Lightweight Intermetallics for Hydrogen Storage  

Science Conference Proceedings (OSTI)

... Nanoparticle Catalysts for Hydrogen Production from Methanol and Methane Ca, Li and Mg Based Lightweight Intermetallics for Hydrogen Storage.

197

Hydrogen Storage Using Electric Field Enhanced Adsorption  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2010 TMS Annual Meeting & Exhibition. Symposium , Materials in Clean Power Systems V: Clean Coal-, Hydrogen...

198

Low Cost Aqueous Electrolyte Based Energy Storage: Materials and ...  

Science Conference Proceedings (OSTI)

Presentation Title, Low Cost Aqueous Electrolyte Based Energy Storage: Materials and ... Deployment of New High Temperature Alloys for Power Generation Systems Designing ... Materials Metrology for a Hydrogen Distribution Infrastructure.

199

Advanced Hydrogen Storage: A System's Perspective and Some Thoughts on Fundamentals  

NLE Websites -- All DOE Office Websites (Extended Search)

90246.00 90246.00 Advanced Hydrogen Storage: A System's Perspective and Some Thoughts on Fundamentals Presentation for DOE Workshop on Hydrogen Storage August 14-15, 2002 1/16 WPT MR 90246.00 In the development of attractive hydrogen storage options, fundamental materials properties and their impact on system design are both critical. * Compact, light, and efficient hydrogen storage technology is a key enabling technology for fuel cell vehicles and the use of renewable energy in vehicles * Due to system-level limitations current hydrogen storage systems meet some of the requirements but none meet all of the requirements - Current storage materials do not offer clear advantages over compressed or liquid hydrogen storage - Improving storage capacity will require improvement in material performance such

200

Breakthrough Materials for Energy Storage  

Title: Breakthrough Materials for Energy Storage Subject: A presentation at the 22nd NREL Industry Growth Forum by Amprius about its lithium ion battery technology

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
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201

Materials Down Select Decisions Made Within the Department of Energy Hydrogen Sorption Center of Excellence  

Fuel Cell Technologies Publication and Product Library (EERE)

Technical report describing DOE's Hydrogen Sorption Center of Excellence investigation into various adsorbent and chemisorption materials and progress towards meeting DOE's hydrogen storage targets. T

202

HYDROGEN CONCENTRATIONS DURING STORAGE OF 3013 OXIDE SAMPLES  

DOE Green Energy (OSTI)

As part of a surveillance program intended to ensure the safe storage of plutonium bearing nuclear materials in the Savannah River Site (SRS) K-Area Materials Storage (KAMS), samples of these materials are shipped to Savannah River National Laboratory (SRNL) for analysis. These samples are in the form of solids or powders which will have absorbed moisture. Potentially flammable hydrogen gas is generated due to radiolysis of the moisture. The samples are shipped for processing after chemical analysis. To preclude the possibility of a hydrogen deflagration or detonation inside the shipping containers, the shipping times are limited to ensure that hydrogen concentration in the vapor space of every layer of confinement is below the lower flammability limit of 4 volume percent (vol%). This study presents an analysis of the rate of hydrogen accumulation due to radiolysis and calculation of allowable shipping times for typical KAMS materials.

Hensel, S.; Askew, N.; Laurinat, J.

2011-03-14T23:59:59.000Z

203

Hydrogen Storage Characteristics of Nanograined Free-Standing  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage Characteristics of Nanograined Free-Standing Hydrogen Storage Characteristics of Nanograined Free-Standing Magnesium-Nickel Films Title Hydrogen Storage Characteristics of Nanograined Free-Standing Magnesium-Nickel Films Publication Type Journal Article Year of Publication 2009 Authors Rogers, Matthew, Steven J. Barcelo, Xiaobo Chen, Thomas J. Richardson, Vincent Berube, Gang Chen, Mildred S. Dresselhaus, Costas P. Grigoropoulos, and Samuel S. Mao Journal Applied Physics A Volume 96 Start Page 349 Issue 2 Pagination 349-352 Date Published 08/2009 ISSN 1432-0630 Keywords 68.43.Mn, 68.43.Nr, 68.55.-a Abstract Free-standing magnesium-nickel (Mg-Ni) films with extensive nanoscale grain structures were fabricated using a combination of pulsed laser deposition and film delaminating processes. Hydrogen sorption and desorption properties of the films, free from the influence of substrates, were investigated. Oxidation of the material was reduced through the use of a sandwiched free-standing film structure in which the top and bottom layers consist of nanometer-thick Pd layers, which also acted as a catalyst to promote hydrogen uptake and release. Hydrogen storage characteristics were studied at three temperatures, 296, 232, and 180°C, where multiple sorption/desorption cycles were measured gravimetrically. An improvement in hydrogen storage capacity over the bulk Mg-Ni target material was found for the free-standing films. As shown from a Van't Hoff plot, the thermodynamic stability of the nanograined films is similar to that of Mg2Ni. These results suggest that free-standing films, of which better control of material compositions and microstructures can be realized than is possible for conventional ball-milled powders, represent a useful materials platform for solid-state hydrogen storage research.

204

U.S. Department of Energy Hydrogen Storage Cost Analysis  

SciTech Connect

The overall objective of this project is to conduct cost analyses and estimate costs for on- and off-board hydrogen storage technologies under development by the U.S. Department of Energy (DOE) on a consistent, independent basis. This can help guide DOE and stakeholders toward the most-promising research, development and commercialization pathways for hydrogen-fueled vehicles. A specific focus of the project is to estimate hydrogen storage system cost in high-volume production scenarios relative to the DOE target that was in place when this cost analysis was initiated. This report and its results reflect work conducted by TIAX between 2004 and 2012, including recent refinements and updates. The report provides a system-level evaluation of costs and performance for four broad categories of on-board hydrogen storage: (1) reversible on-board metal hydrides (e.g., magnesium hydride, sodium alanate); (2) regenerable off-board chemical hydrogen storage materials(e.g., hydrolysis of sodium borohydride, ammonia borane); (3) high surface area sorbents (e.g., carbon-based materials); and 4) advanced physical storage (e.g., 700-bar compressed, cryo-compressed and liquid hydrogen). Additionally, the off-board efficiency and processing costs of several hydrogen storage systems were evaluated and reported, including: (1) liquid carrier, (2) sodium borohydride, (3) ammonia borane, and (4) magnesium hydride. TIAX applied a â??bottom-upâ? costing methodology customized to analyze and quantify the processes used in the manufacture of hydrogen storage systems. This methodology, used in conjunction with DFMA?® software and other tools, developed costs for all major tank components, balance-of-tank, tank assembly, and system assembly. Based on this methodology, the figure below shows the projected on-board high-volume factory costs of the various analyzed hydrogen storage systems, as designed. Reductions in the key cost drivers may bring hydrogen storage system costs closer to this DOE target. In general, tank costs are the largest component of system cost, responsible for at least 30 percent of total system cost, in all but two of the 12 systems. Purchased BOP cost also drives system cost, accounting for 10 to 50 percent of total system cost across the various storage systems. Potential improvements in these cost drivers for all storage systems may come from new manufacturing processes and higher production volumes for BOP components. In addition, advances in the production of storage media may help drive down overall costs for the sodium alanate, SBH, LCH2, MOF, and AX-21 systems.

Law, Karen; Rosenfeld, Jeffrey; Han, Vickie; Chan, Michael; Chiang, Helena; Leonard, Jon

2013-03-11T23:59:59.000Z

205

Hydrogen Peroxide Storage in Small Sealed Tanks  

DOE Green Energy (OSTI)

Unstabilized hydrogen peroxide of 85% concentration has been prepared in laboratory quantities for testing material compatibility and long term storage on a small scale. Vessels made of candidate tank and liner materials ranged in volume from 1 cc to 2540 cc. Numerous metals and plastics were tried at the smallest scales, while promising ones were used to fabricate larger vessels and liners. An aluminum alloy (6061-T6) performed poorly, including increasing homogeneous decay due to alloying elements entering solution. The decay rate in this high strength aluminum was greatly reduced by anodizing. Better results were obtained with polymers, particularly polyvinylidene fluoride. Data reported herein include ullage pressures as a function of time with changing decay rates, and contamination analysis results.

Whitehead, J.

1999-10-20T23:59:59.000Z

206

Hydrogen energy for tomorrow: Advanced hydrogen transport and storage technologies  

DOE Green Energy (OSTI)

The future use of hydrogen to generate electricity, heat homes and businesses, and fuel vehicles will require the creation of a distribution infrastructure of safe, and cost-effective transport and storage. Present storage methods are too expensive and will not meet the performance requirements of future applications. Transport technologies will need to be developed based on the production and storage systems that come into use as the hydrogen energy economy evolves. Different applications will require the development of different types of storage technologies. Utility electricity generation and home and office use will have storage fixed in one location--stationary storage--and size and weight will be less important than energy efficiency and costs of the system. Fueling a vehicle, however, will require hydrogen storage in an ``on-board`` system--mobile storage--with weight and size similar to the gasoline tank in today`s vehicle. Researchers are working to develop physical and solid-state storage systems that will meet these diverse future application demands. Physical storage systems and solid-state storage methods (metal hydrides, gas-on-solids adsorption, and glass microspheres) are described.

NONE

1995-08-01T23:59:59.000Z

207

High Pressure Hydrogen Storage in Carbon Nanotubes - Energy ...  

Hydrogen storage for transportation is one of the most important problems faced in implementing a hydrogen economy. Hydrogen can be produced in many ways, but ...

208

High Pressure Hydrogen Storage in Carbon Nanotubes - Energy ...  

Hydrogen storage for transportation is one of the most important problems faced in implementing a hydrogen economy. Hydrogen can be produced in many ...

209

A Cassette Based System for Hydrogen Storage and Delivery  

DOE Green Energy (OSTI)

A hydrogen storage system is described and evaluated. This is based upon a cassette, that is a container for managing hydrogen storage materials. The container is designed to be safe, modular, adaptable to different chemistries, inexpensive, and transportable. A second module receives the cassette and provides the necessary infrastructure to deliver hydrogen from the cassette according to enduser requirements. The modular concept has a number of advantages over approaches that are all in one stand alone systems. The advantages of a cassette based system are discussed, along with results from model and laboratory testing.

Britton Wayne E.

2006-11-29T23:59:59.000Z

210

Standardized Testing Program for Solid-State Hydrogen Storage Technologies  

DOE Green Energy (OSTI)

In the US and abroad, major research and development initiatives toward establishing a hydrogen-based transportation infrastructure have been undertaken, encompassing key technological challenges in hydrogen production and delivery, fuel cells, and hydrogen storage. However, the principal obstacle to the implementation of a safe, low-pressure hydrogen fueling system for fuel-cell powered vehicles remains storage under conditions of near-ambient temperature and moderate pressure. The choices for viable hydrogen storage systems at the present time are limited to compressed gas storage tanks, cryogenic liquid hydrogen storage tanks, chemical hydrogen storage, and hydrogen absorbed or adsorbed in a solid-state material (a.k.a. solid-state storage). Solid-state hydrogen storage may offer overriding benefits in terms of storage capacity, kinetics and, most importantly, safety.The fervor among the research community to develop novel storage materials had, in many instances, the unfortunate consequence of making erroneous, if not wild, claims on the reported storage capacities achievable in such materials, to the extent that the potential viability of emerging materials was difficult to assess. This problem led to a widespread need to establish a capability to accurately and independently assess the storage behavior of a wide array of different classes of solid-state storage materials, employing qualified methods, thus allowing development efforts to focus on those materials that showed the most promise. However, standard guidelines, dedicated facilities, or certification programs specifically aimed at testing and assessing the performance, safety, and life cycle of these emergent materials had not been established. To address the stated need, the Testing Laboratory for Solid-State Hydrogen Storage Technologies was commissioned as a national-level focal point for evaluating new materials emerging from the designated Materials Centers of Excellence (MCoE) according to established and qualified standards. Working with industry, academia, and the U.S. government, SwRI set out to develop an accepted set of evaluation standards and analytical methodologies. Critical measurements of hydrogen sorption properties in the Laboratory have been based on three analytical capabilities: 1) a high-pressure Sievert-type volumetric analyzer, modified to improve low-temperature isothermal analyses of physisorption materials and permit in situ mass spectroscopic analysis of the samples gas space; 2) a static, high-pressure thermogravimetric analyzer employing an advanced magnetic suspension electro-balance, glove-box containment, and capillary interface for in situ mass spectroscopic analysis of the samples gas space; and 3) a Laser-induced Thermal Desorption Mass Spectrometer (LTDMS) system for high thermal-resolution desorption and mechanistic analyses. The Laboratory has played an important role in down-selecting materials and systems that have emerged from the MCoEs.

Miller, Michael A. [Southwest Research Institute; Page, Richard A. [Southwest Research Institute

2012-07-30T23:59:59.000Z

211

New Materials for Hydrogen Pipelines  

NLE Websites -- All DOE Office Websites (Extended Search)

OAK OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY New Materials for Hydrogen Pipelines New Materials for Hydrogen Pipelines Barton Smith, Barbara Frame, Cliff Eberle, Larry Anovitz, James Blencoe and Tim Armstrong Oak Ridge National Laboratory Jimmy Mays University of Tennessee, Knoxville Hydrogen Pipeline Working Group Meeting August 30-31, 2005 Augusta, Georgia 2 OAK RIDGE NATIONAL LABORATORY U. S. DEPARTMENT OF ENERGY Overview Overview - - Barriers and Technical Targets Barriers and Technical Targets * Barriers to Hydrogen Delivery - Existing steel pipelines are subject to hydrogen embrittlement and are inadequate for widespread H 2 distribution. - Current joining technology (welding) for steel pipelines is major cost factor and can exacerbate hydrogen embrittlement issues.

212

Small Fuel Cell Systems with Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

eere.energy.gov H 2 and FC Technologies Manufacturing R&D Workshop Renaissance Hotel, Washington, DC August 11-12, 2011 Small Fuel Cell Systems with Hydrogen Storage Ned T....

213

Stationary High-Pressure Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Stationary High-Pressure Hydrogen Storage Zhili Feng Oak Ridge National Laboratory 2 Managed by UT-Battelle for the U.S. Department of Energy Technology Gap Analysis for Bulk...

214

DOE Hydrogen Analysis Repository: Hydrogen Storage Systems Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Storage Systems Analysis Storage Systems Analysis Project Summary Full Title: System Level Analysis of Hydrogen Storage Options Project ID: 202 Principal Investigator: Rajesh K. Ahluwalia Keywords: Hydrogen storage; compressed hydrogen tanks Purpose ANL is developing models to understand the characteristics of storage systems based on approaches with unique characteristics (thermal energy and temperature of charge and discharge, kinetics of the physical and chemical process steps involved) and to evaluate their potential to meet DOE targets for on-board applications. Performer Principal Investigator: Rajesh K. Ahluwalia Organization: Argonne National Laboratory (ANL) Address: 9700 S. Cass Ave. Argonne, IL 60439 Telephone: 630-252-5979 Email: walia@anl.gov Additional Performers: T.Q. Hua, Argonne National Laboratory; Romesh Kumar, Argonne National Laboratory; J-C Peng, Argonne National Laboratory

215

Destabilized and catalyzed borohydride for reversible hydrogen storage  

SciTech Connect

A process of forming a hydrogen storage material, including the steps of: providing a first material of the formula M(BH.sub.4).sub.X, where M is an alkali metal or an alkali earth metal, providing a second material selected from M(AlH.sub.4).sub.x, a mixture of M(AlH.sub.4).sub.x and MCl.sub.x, a mixture of MCl.sub.x and Al, a mixture of MCl.sub.x and AlH.sub.3, a mixture of MH.sub.x and Al, Al, and AlH.sub.3. The first and second materials are combined at an elevated temperature and at an elevated hydrogen pressure for a time period forming a third material having a lower hydrogen release temperature than the first material and a higher hydrogen gravimetric density than the second material.

Mohtadi, Rana F. (Northville, MI); Nakamura, Kenji (Toyota, JP); Au, Ming (Martinez, GA); Zidan, Ragaiy (Alken, SC)

2012-01-31T23:59:59.000Z

216

Metal-Containing Organic and Carbon Aerogels for Hydrogen Storage  

SciTech Connect

This document and the accompanying manuscript summarize the technical accomplishments of our one-year LDRD-ER effort. Hydrogen storage and hydrogen fuel cells are important components of the 2003 Hydrogen Fuel Initiative focused on the reduction of America's dependence on oil. To compete with oil as an energy source, however, one must be able to transport and utilize hydrogen at or above the target set by DOE (6 wt.% H{sub 2}) for the transportation sector. Other than liquid hydrogen, current technology falls well short of this DOE target. As a result, a variety of materials have recently been investigated to address this issue. Carbon nanostructures have received significant attention as hydrogen storage materials due to their low molecular weight, tunable microporosity and high specific surface areas. For example, the National Renewable Energy Laboratory (NREL) achieved 5 to 10 wt.% H{sub 2} storage using metal-doped carbon nanotubes. That study showed that the intimate mix of metal nanoparticles with graphitic carbon resulted in the unanticipated hydrogen adsorption at near ambient conditions. The focus of our LDRD effort was the investigation of metal-doped carbon aerogels (MDCAs) as hydrogen storage materials. In addition to their low mass densities, continuous porosities and high surface areas, these materials are promising candidates for hydrogen storage because MDCAs contain a nanometric mix of metal nanoparticles and graphitic nanostructures. For FY04, our goals were to: (1) prepare a variety of metal-doped CAs (where the metal is cobalt, nickel or iron) at different densities and carbonization temperatures, (2) characterize the microstructure of these materials and (3) initiate hydrogen adsorption/desorption studies to determine H2 storage properties of these materials. Since the start of this effort, we have successfully prepared and characterized Ni- and Co-doped carbon aerogels at different densities and carbonization temperatures. The bulk of this work is described in the attached manuscript entitled 'Formation of Carbon Nanostructures in Cobalt- and Nickel- Doped Carbon Aerogels'. This one-year effort has lead to our incorporation into the DOE Carbon-based Hydrogen Storage Center of Excellence at NREL, with funding from DOE's Energy Efficiency and Renewable Energy (EERE) Program starting in FY05.

Satcher, Jr., J H; Baumann, T F; Herberg, J L

2005-01-10T23:59:59.000Z

217

Hydrogen and Fuel Cells R&D  

NLE Websites -- All DOE Office Websites (Extended Search)

Liquids --Hydrogen Storage Materials --Hydrogen Storage Systems Modeling and Analysis --Thermochemical Hydrogen * Fuel Cells --Polymer Electrolyte --Modeling & Analysis --Fuel...

218

Systems and methods for facilitating hydrogen storage using ...  

Systems and methods for facilitating hydrogen storage using naturally occurring nanostructure assemblies United States Patent

219

Hydrogen/halogen energy storage system  

DOE Green Energy (OSTI)

The hydrogen/chlorine energy storage system has been considered at BNL for large scale energy storage. In FY1978 work included an assessment of system safety and cost, investigations of cell performance under conditions elevated pressure and temperature, determination of the transport properties of Nafion membranes and electrochemical engineering studies. Results are summarized.

Spaziante, P M; Sioli, G C; Trotta, R; Perego, A; McBreen, J

1978-01-01T23:59:59.000Z

220

Hydrogen fuel closer to reality because of storage advances  

E-Print Network (OSTI)

.S. Department of Energy's Chemical Hydrogen Storage Center of Excellence describe a significant advance- 1 - Hydrogen fuel closer to reality because of storage advances March 21, 2012 Drive toward hydrogen vehicles just got shorter A significant advance in hydrogen storage could make hydrogen a more

Kurien, Susan

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version)  

NLE Websites -- All DOE Office Websites (Extended Search)

Storage (Text Storage (Text Alternative Version) to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on Facebook Tweet about Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on Twitter Bookmark Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on Google Bookmark Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on Delicious Rank Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on Digg Find More places to share Fuel Cell Technologies Office: Hydrogen Storage (Text Alternative Version) on AddThis.com... Publications Program Publications Technical Publications Educational Publications Newsletter Program Presentations Multimedia Conferences & Meetings

222

Direct Hydrogenation Magnesium Boride to Magnesium Borohydride: Demonstration of >11 Weight Percent Reversible Hydrogen Storage  

DOE Green Energy (OSTI)

We here for the first time demonstrate direct hydrogenation of magnesium boride, MgB2, to magnesium borohydride, Mg(BH4)2 at 900 bar H2-pressures and 400C. Upon 14.8wt% hydrogen release, the end-decomposition product of Mg(BH4)2 is MgB2, thus, this is a unique reversible path here obtaining >11wt% H2 which implies promise for a fully reversible hydrogen storage material.

Severa, Godwin; Ronnebro, Ewa; Jensen, Craig M.

2010-11-16T23:59:59.000Z

223

Cryogenic Hydrogen Storage Systems Workshop Agenda  

NLE Websites -- All DOE Office Websites (Extended Search)

Tuesday, February 15, 2011 - Cryogenic Hydrogen Storage Systems Tuesday, February 15, 2011 - Cryogenic Hydrogen Storage Systems Purpose: Identify R&D needs and technical pathways associated with the continued development and validation of cryo-compressed and cryo-sorption hydrogen storage technologies, highlighting those aspects common to both technologies as well as identifying their unique requirements and issues that should be addressed. 8:30 Welcome/Introductions/Workshop objectives/Recap of previous day Ned Stetson, DOE 9:00 OEM Perspective on Cryogenic H 2 Storage (20 min presentation/20 min discussion) Tobias Brunner, BMW 9:40 Performance Comparison and Cost Review (20 min presentation/20 min discussion) Rajesh Ahluwalia, ANL 10:20 Break (10 minutes) 10:30 Expert Panel Discussion (Members will each have 15 minutes for presentations)

224

Hydrogen Storage in a Microporous Metal-Organic Framework with Exposed Mn2+ Coordination Sites  

E-Print Network (OSTI)

Hydrogen Storage in a Microporous Metal-Organic Framework with Exposed Mn2+ Coordination Sites and 90 bar, which at 60 g H2/L provides a storage density 85% of that of liquid hydrogen. The material-358. (2) EERE: Hydrogen, Fuel Cells, & Infrastructure Technologies Program Homepage, www.eere.energy

225

Hydrogen Storage in Carbon Nanotubes  

NLE Websites -- All DOE Office Websites (Extended Search)

STORAGE IN CARBON NANOTUBES JOHN E. FISCHER UNIVERSITY OF PENNSYLVANIA * SOME BASIC NOTIONS * BINDING SITES AND ENERGIES * PROCESSING TO ENHANCE CAPACITY: EX: ELECTROCHEMICAL Li...

226

Hydrogenation of carbonaceous materials  

DOE Patents (OSTI)

A method for reacting pulverized coal with heated hydrogen-rich gas to form hydrocarbon liquids suitable for conversion to fuels wherein the reaction involves injection of pulverized coal entrained in a minimum amount of gas and mixing the entrained coal at ambient temperature with a separate source of heated hydrogen. In accordance with the present invention, the hydrogen is heated by reacting a small portion of the hydrogen-rich gas with oxygen in a first reaction zone to form a gas stream having a temperature in excess of about 1000.degree. C. and comprising a major amount of hydrogen and a minor amount of water vapor. The coal particles then are reacted with the hydrogen in a second reaction zone downstream of the first reaction zone. The products of reaction may be rapidly quenched as they exit the second reaction zone and are subsequently collected.

Friedman, Joseph (Encino, CA); Oberg, Carl L. (Canoga Park, CA); Russell, Larry H. (Agoura, CA)

1980-01-01T23:59:59.000Z

227

Hydrogen Compatible Materials Workshop  

NLE Websites -- All DOE Office Websites (Extended Search)

Workshop November 3 rd , 2010 Research, Engineering, and Applications Center for Hydrogen Sandia National Laboratory, Livermore, CA Introduction: On November 3 rd , 2010, Sandia...

228

DOE Hydrogen Analysis Repository: Emissions Analysis of Electricity Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Emissions Analysis of Electricity Storage with Hydrogen Emissions Analysis of Electricity Storage with Hydrogen Project Summary Full Title: Emissions Analysis of Electricity Storage with Hydrogen Project ID: 269 Principal Investigator: Amgad Elgowainy Brief Description: Argonne National Laboratory examined the potential fuel cycle energy and emissions benefits of integrating hydrogen storage with renewable power generation. ANL also examined the fuel cycle energy use and emissions associated with alternative energy storage systems, including pumped hydro storage (PHS), compressed air energy storage (CAES), and vanadium-redox batteries (VRB). Keywords: Hydrogen; Emissions; Greenhouse gases (GHG); Energy storage; Life cycle analysis Performer Principal Investigator: Amgad Elgowainy Organization: Argonne National Laboratory (ANL)

229

Storage containers for radioactive material  

DOE Patents (OSTI)

A radioactive material storage system is claimed for use in the laboratory having a flat base plate with a groove in one surface thereof and a hollow pedestal extending perpendicularly away from the other surface thereof, a sealing gasket in the groove, a cover having a filter therein and an outwardly extending flange which fits over the plate, the groove and the gasket, and a clamp for maintaining the cover and the plate sealed together. The plate and the cover and the clamp cooperate to provide a storage area for radioactive material readily accessible for use or inventory. Wall mounts are provided to prevent accidental formation of critical masses during storage.

Groh, E.F.; Cassidy, D.A.; Dates, L.R.

1980-07-31T23:59:59.000Z

230

Materials compatibility of hydride storage materials with austenitic stainless steels  

DOE Green Energy (OSTI)

This task evaluated the materials compatibility of LaNi[sub 5-x]Al[sub x] (x= 0.3, 0.75) hydrides and palladium coated kieselguhr with austenitic stainless steel in hydrogen and tritium process environments. Based on observations of retired prototype hydride storage beds and materials exposure testing samples designed for this study, no materials compatibility problem was indicated. Scanning electron microscopy observations of features on stainless steel surfaces after exposure to hydrides are also commonly found on as-received materials before hydriding. These features are caused by either normal heat treating and acid cleaning of stainless steel or reflect the final machining operation.

Clark, E.A.

1992-09-21T23:59:59.000Z

231

Materials compatibility of hydride storage materials with austenitic stainless steels  

DOE Green Energy (OSTI)

This task evaluated the materials compatibility of LaNi{sub 5-x}Al{sub x} (x= 0.3, 0.75) hydrides and palladium coated kieselguhr with austenitic stainless steel in hydrogen and tritium process environments. Based on observations of retired prototype hydride storage beds and materials exposure testing samples designed for this study, no materials compatibility problem was indicated. Scanning electron microscopy observations of features on stainless steel surfaces after exposure to hydrides are also commonly found on as-received materials before hydriding. These features are caused by either normal heat treating and acid cleaning of stainless steel or reflect the final machining operation.

Clark, E.A.

1992-09-21T23:59:59.000Z

232

Hydrogen Storage Requirements for Fuel Cell Vehicles  

NLE Websites -- All DOE Office Websites (Extended Search)

GENERAL MOTORS GENERAL MOTORS HYDROGEN STORAGE REQUIREMENTS FOR FUEL CELL VEHICLES Brian G. Wicke GM R&D and Planning DOE Hydrogen Storage Workshop August 14-15, 2002 Argonne National Laboratory General Motors Fuel Cell Vehicles * GM fuel cell vehicle Goal - be the first to profitably sell one million fuel cell vehicles * Fuel cell powerplant must be suitable for a broad range of light-duty vehicles (not just niche) * UNCOMPROMISED performance & reliability are REQUIRED * SAFETY IS A GIVEN * Evolutionary and Revolutionary vehicle designs are included-GM AUTONOMY-as long as the customer is (more than) satisfied GENERAL MOTORS AUTONOMY GENERAL MOTORS AUTONOMY General Motors Fuel Cell Vehicles * Focus on PEM fuel cell technology * Must consider entire hydrogen storage & (unique) fuel delivery systems,

233

Evaluation of Natural Gas Pipeline Materials for Hydrogen Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Thad M. Adams Thad M. Adams Materials Technology Section Savannah River National Laboratory DOE Hydrogen Pipeline R&D Project Review Meeting January 5-6, 2005 Evaluation of Natural Gas Pipeline Materials for Hydrogen Service Hydrogen Technology at the Savannah Hydrogen Technology at the Savannah River Site River Site * Tritium Production/Storage/Handling and Hydrogen Storage/Handling since 1955 - Designed, built and currently operate world's largest metal hydride based processing facility (RTF) - DOE lead site for tritium extraction/handling/separation/storage operations * Applied R&D provided by Savannah River National Laboratory - Largest hydrogen R&D staff in country * Recent Focus on Related National Energy Needs - Current major effort on hydrogen energy technology

234

Synergistically Enhanced Materials and Design Parameters for Reducing the Cost of Hydrogen Storage Tanks - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

5 5 FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program Kevin L. Simmons (Primary Contact), Kenneth Johnson, and Kyle Alvine Pacific Northwest National Laboratory (PNNL) 902 Battelle Blvd Richland, WA 99352 Phone: (509) 375-3651 Email: Kevin.Simmons@pnnl.gov Norman Newhouse (Lincoln Composites, Inc.), Mike Veenstra (Ford Motor Company), Anand V. Rau (TORAY Carbon Fibers America) and Thomas Steinhausler (AOC, L.L.C.) DOE Managers HQ: Ned Stetson Phone: (202) 586-9995 Email: Ned.Stetson@ee.doe.gov GO: Jesse Adams

235

Activated aluminum hydride hydrogen storage compositions and uses thereof  

DOE Patents (OSTI)

In one aspect, the invention relates to activated aluminum hydride hydrogen storage compositions containing aluminum hydride in the presence of, or absence of, hydrogen desorption stimulants. The invention particularly relates to such compositions having one or more hydrogen desorption stimulants selected from metal hydrides and metal aluminum hydrides. In another aspect, the invention relates to methods for generating hydrogen from such hydrogen storage compositions.

Sandrock, Gary (Ringwood, NJ); Reilly, James (Bellport, NY); Graetz, Jason (Mastic, NY); Wegrzyn, James E. (Brookhaven, NY)

2010-11-23T23:59:59.000Z

236

Hydrogen Electrochemical Energy Storage Device  

very high energy density of approximately 30,000 Watt-hour per kilogram (Wh/kg). Comparatively, state of the art Li-Ion batteries have energy densities of about 400 Wh/kg. While hydrogen fuel cells have been heavily investigated as an alternative ...

237

Best Practices for Characterizing Engineering Properties of Hydrogen Storage Materials - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

0 0 DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Karl J. Gross (Primary Contact), Russell Carrington 1 , Steven Barcelo 1 , Abhi Karkamkar 2 , Justin Purewal 3 , Pierre Dantzer 4 , Shengqian Ma and Hong-Cai Zhou 5 , Kevin Ott 6 , Tony Burrell 6 , Troy Semeslberger 6 , Yevheniy Pivak 7 , Bernard Dam 7 , Dhanesh Chandra 8 H2 Technology Consulting LLC P.O. Box 1302 Alamo, CA 94507 Phone: (510) 468-7515 Email: kgross@h2techconsulting.com 1 University of California Berkeley 2 Pacific Northwest National Laboratory 3 California Institute of Technology 4 Université Paris-Sud 5 Texas A&M University 6 Los Alamos National Laboratory 7 VU University Amsterdam and the Delft University of Technology

238

Metal- and Cluster-Modified Ultrahigh-Area Materials for the Ambient Temperature Storage of Molecular Hydrogen - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

5 5 FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program Joseph E. Mondloch (Primary Contact), Joseph T. Hupp, Omar K. Farha Northwestern University 2145 Sheridan Road Evanston, IL 60208 Phone: (847) 467-4932 Email: mojo0001@gmail.com DOE Managers HQ: Grace Ordaz Phone: (202) 586-8350 Email: Grace.Ordaz@ee.doe.gov GO: Gregory Kleen Phone: (720) 356-1672 Email: Gregory.Kleen@go.doe.gov Contract Number: This research was supported in part by the Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Postdoctoral Research Awards under the EERE Fuel Cell Technologies Program administered by Oak Ridge Institute for Science and Education (ORISE) for the DOE. ORISE is managed by Oak Ridge Associated

239

Microwavable thermal energy storage material  

DOE Patents (OSTI)

A microwavable thermal energy storage material is provided which includes a mixture of a phase change material and silica, and a carbon black additive in the form of a conformable dry powder of phase change material/silica/carbon black, or solid pellets, films, fibers, moldings or strands of phase change material/high density polyethylene/ethylene-vinyl acetate/silica/carbon black which allows the phase change material to be rapidly heated in a microwave oven. The carbon black additive, which is preferably an electrically conductive carbon black, may be added in low concentrations of from 0.5 to 15% by weight, and may be used to tailor the heating times of the phase change material as desired. The microwavable thermal energy storage material can be used in food serving applications such as tableware items or pizza warmers, and in medical wraps and garments.

Salyer, Ival O. (Dayton, OH)

1998-09-08T23:59:59.000Z

240

Microwavable thermal energy storage material  

DOE Patents (OSTI)

A microwavable thermal energy storage material is provided which includes a mixture of a phase change material and silica, and a carbon black additive in the form of a conformable dry powder of phase change material/silica/carbon black, or solid pellets, films, fibers, moldings or strands of phase change material/high density polyethylene/ethylene vinyl acetate/silica/carbon black which allows the phase change material to be rapidly heated in a microwave oven. The carbon black additive, which is preferably an electrically conductive carbon black, may be added in low concentrations of from 0.5 to 15% by weight, and may be used to tailor the heating times of the phase change material as desired. The microwavable thermal energy storage material can be used in food serving applications such as tableware items or pizza warmers, and in medical wraps and garments. 3 figs.

Salyer, I.O.

1998-09-08T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Hydrogen effects on materials for CNG/H2 blends.  

Science Conference Proceedings (OSTI)

No concerns for Hydrogen-Enriched Compressed Natural gas (HCNG) in steel storage tanks if material strength is CNG) (e.g., CO) may provide extrinsic mechanism for mitigating H{sub 2}-assisted fatigue cracking in steel tanks.

Farese, David (Air Products, USA); Keller, Jay O.; Somerday, Brian P.

2010-09-01T23:59:59.000Z

242

Hydrogen storage in sodium aluminum hydride.  

DOE Green Energy (OSTI)

Sodium aluminum hydride, NaAlH{sub 4}, has been studied for use as a hydrogen storage material. The effect of Ti, as a few mol. % dopant in the system to increase kinetics of hydrogen sorption, is studied with respect to changes in lattice structure of the crystal. No Ti substitution is found in the crystal lattice. Electronic structure calculations indicate that the NaAlH{sub 4} and Na{sub 3}AlH{sub 6} structures are complex-ionic hydrides with Na{sup +} cations and AlH{sub 4}{sup -} and AlH{sub 6}{sup 3-} anions, respectively. Compound formation studies indicate the primary Ti-compound formed when doping the material at 33 at. % is TiAl{sub 3} , and likely Ti-Al compounds at lower doping rates. A general study of sorption kinetics of NaAlH{sub 4}, when doped with a variety of Ti-halide compounds, indicates a uniform response with the kinetics similar for all dopants. NMR multiple quantum studies of solution-doped samples indicate solvent interaction with the doped alanate. Raman spectroscopy was used to study the lattice dynamics of NaAlH{sub 4}, and illustrated the molecular ionic nature of the lattice as a separation of vibrational modes between the AlH{sub 4}{sup -} anion-modes and lattice-modes. In-situ Raman measurements indicate a stable AlH{sub 4}{sup -} anion that is stable at the melting temperature of NaAlH{sub 4}, indicating that Ti-dopants must affect the Al-H bond strength.

Ozolins, Vidvuds; Herberg, J.L. (Lawrence Livermore National Laboratories, Livermore, CA); McCarty, Kevin F.; Maxwell, Robert S. (Lawrence Livermore National Laboratories, Livermore, CA); Stumpf, Roland Rudolph; Majzoub, Eric H.

2005-11-01T23:59:59.000Z

243

Electrolysis-based hydrogen storage systems. Annual report, January 1, 1978-December 31, 1978  

DOE Green Energy (OSTI)

Contract management, technical monitoring and in-house research conducted by Brookhaven National Laboratory for the US Department of Energy, Division of Energy Storage as described. The status of each project within four major areas of investigation is summarize. Activities deal with: (1) Electrolytic Production of Hydrogen; (2) Hydrogen Storage Systems; (3) Hydrogen Storage Materials; and (4) Systems Studies/End-Use Applications. The BNL programmatic responsibilities encompass the direction of 17 contractors and a $3,200,000 budget.

Not Available

1979-04-01T23:59:59.000Z

244

Hydrogen and Fuel Cell Technologies Program: Storage Fact Sheet  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

FUEL CELL TECHNOLOGIES PROGRAM FUEL CELL TECHNOLOGIES PROGRAM Hydrogen and Fuel Cell Technologies Program: Storage Hydrogen Storage Developing safe, reliable, compact, and cost-effective hydrogen storage tech- nologies is one of the most technically challenging barriers to the widespread use of hydrogen as a form of energy. To be competitive with conventional vehicles, hydrogen-powered cars must be able to travel more than 300 mi between fills. This is a challenging goal because hydrogen has physical characteristics that make it difficult to store in large quantities without taking up a significant amount of space. Where and How Will Hydrogen be Stored? Hydrogen storage will be required

245

A High-Pressure Hydrogen Storage Design for Substation Applications  

Low-cost off-board bulk stationary storage of hydrogen is a critical part in the hydrogen infrastructure, ... recognized in the DOE Fuel Cell Technologies Program ...

246

Implementing a Hydrogen Energy Infrastructure: Storage Options and System Design  

E-Print Network (OSTI)

Gas Based Hydrogen Infrastructure Optimizing Transitionseconomies and lower infrastructure costs. REFERENCES 1. NRC,a Hydrogen Energy Infrastructure: Storage Options and System

Ogden, Joan M; Yang, Christopher

2005-01-01T23:59:59.000Z

247

Fuel Cell Technologies Office: Hydrogen Storage Workshop Proceedings  

NLE Websites -- All DOE Office Websites (Extended Search)

Proceedings to someone by E-mail Share Fuel Cell Technologies Office: Hydrogen Storage Workshop Proceedings on Facebook Tweet about Fuel Cell Technologies Office: Hydrogen...

248

Hydrogen Storage Options: Technologies and Comparisons for Light-Duty Vehicle Applications  

E-Print Network (OSTI)

Storage of Hydrogen in Microspheres, 15 th World Hydrogen Energyhydrogen in storage varies between the various energy storagethe energy storage characteristics of the various hydrogen

Burke, Andy; Gardiner, Monterey

2005-01-01T23:59:59.000Z

249

Hydrogen Storage property of sandwiched magnesium hydride naoparticle...  

NLE Websites -- All DOE Office Websites (Extended Search)

Storage property of sandwiched magnesium hydride naoparticle thin film Title Hydrogen Storage property of sandwiched magnesium hydride naoparticle thin film Publication Type...

250

Destabilized and catalyzed borohydride for reversible hydrogen storage  

SciTech Connect

A process of forming a hydrogen storage material, including the steps of: providing a borohydride material of the formula: M(BH.sub.4).sub.x where M is an alkali metal or an alkaline earth metal and 1.ltoreq.x.ltoreq.2; providing an alanate material of the formula: M.sub.1(AlH.sub.4).sub.x where M.sub.1 is an alkali metal or an alkaline earth metal and 1.ltoreq.x.ltoreq.2; providing a halide material of the formula: M.sub.2Hal.sub.x where M.sub.2 is an alkali metal, an alkaline earth metal or transition metal and Hal is a halide and 1.ltoreq.x.ltoreq.4; combining the borohydride, alanate and halide materials such that 5 to 50 molar percent from the borohydride material is present forming a reaction product material having a lower hydrogen release temperature than the alanate material.

Mohtadi, Rana F. (Northville, MI); Zidan, Ragaiy (Aiken, SC); Gray, Joshua (Aiken, SC); Stowe, Ashley C. (Knoxville, TN); Sivasubramanian, Premkumar (Aiken, SC)

2012-02-28T23:59:59.000Z

251

Impact of Metal and Anion Substitutions on the Hydrogen Storage Properties of MBTT Metal-Organic Frameworks  

E-Print Network (OSTI)

of Energy (DoE) system performance targets for mobile hydrogen storage systems,3 which specify minimumImpact of Metal and Anion Substitutions on the Hydrogen Storage Properties of MBTT Metal-organic frameworks are a class of materials being vigorously investigated for mobile hydrogen storage applications

252

Fueling up with Hydrogen: New Approaches to Hydrogen Storage (433rd Brookhaven Lecture)  

DOE Green Energy (OSTI)

Hydrogen, the most abundant element in the universe, burns excellently and cleanly, with only pure water as a byproduct. NASA has used hydrogen as fuel for years in the space program. So, why not use hydrogen to fuel cars? The bottleneck of developing hydrogen-fueled vehicles has been identified: the greatest problem is storage. The conventional storage method, compressed hydrogen gas, requires a large tank volume, and the possibility of a tank rupture poses a significant safety risk. Another method, low temperature liquid storage, is expensive and impractical for most automotive applications. An alternative is to store the hydrogen in the solid state. In his talk, Jason Graetz will describe the new approaches to hydrogen storage being studied by his group at BNL. These include using kinetically stabilized hydrides, bialkali alanates and reversible metal-organic hydrides. The researchers are also using novel synthesis approaches, state-of-the-art characterization and first principles modeling, all providing a better fundamental understanding of these interesting and useful new materials.

Graetz, Jason (Energy Sciences and Technology Dept)

2008-02-20T23:59:59.000Z

253

Complex Hydrides as Advanced Energy Storage Materials  

Science Conference Proceedings (OSTI)

Ammonia Borane for Chemical Hydrogen Storage: Effect of Nano-Confinement ... High Water Diffusivity in Low Hydration Plasma-Polymerised Proton Exchange ... Thermodynamic Characterization on Hydrogen Absorption and Desorption...

254

Modeling leaks from liquid hydrogen storage systems.  

DOE Green Energy (OSTI)

This report documents a series of models for describing intended and unintended discharges from liquid hydrogen storage systems. Typically these systems store hydrogen in the saturated state at approximately five to ten atmospheres. Some of models discussed here are equilibrium-based models that make use of the NIST thermodynamic models to specify the states of multiphase hydrogen and air-hydrogen mixtures. Two types of discharges are considered: slow leaks where hydrogen enters the ambient at atmospheric pressure and fast leaks where the hydrogen flow is usually choked and expands into the ambient through an underexpanded jet. In order to avoid the complexities of supersonic flow, a single Mach disk model is proposed for fast leaks that are choked. The velocity and state of hydrogen downstream of the Mach disk leads to a more tractable subsonic boundary condition. However, the hydrogen temperature exiting all leaks (fast or slow, from saturated liquid or saturated vapor) is approximately 20.4 K. At these temperatures, any entrained air would likely condense or even freeze leading to an air-hydrogen mixture that cannot be characterized by the REFPROP subroutines. For this reason a plug flow entrainment model is proposed to treat a short zone of initial entrainment and heating. The model predicts the quantity of entrained air required to bring the air-hydrogen mixture to a temperature of approximately 65 K at one atmosphere. At this temperature the mixture can be treated as a mixture of ideal gases and is much more amenable to modeling with Gaussian entrainment models and CFD codes. A Gaussian entrainment model is formulated to predict the trajectory and properties of a cold hydrogen jet leaking into ambient air. The model shows that similarity between two jets depends on the densimetric Froude number, density ratio and initial hydrogen concentration.

Winters, William Stanley, Jr.

2009-01-01T23:59:59.000Z

255

Hydrogen storage based on physisorption.  

DOE Green Energy (OSTI)

Physisorption of molecular hydrogen based on neutral and negatively charged aromatic molecular systems has been evaluated using ab initio calculations to estimate the binding energy, {Delta}H, and {Delta}G at 298 ({approx}77 bar) and 77 K (45 bar) in order to compare calculated results with experimental measurements of hydrogen adsorption. The molecular systems used in this study were corannulene (C{sub 20}H{sub 10}), dicyclopenta[def,jkl]triphenylene (C{sub 20}H{sub 10}), 5,8-dioxo-5,8-dihydroindeno[2,1-c]fluorene (C{sub 20}H{sub 10}O{sub 2}), 6-hexyl-5,8-dioxo-5,8-dihydroindeno[2,1-c]fluorene (C{sub 26}H{sub 22}O{sub 2}), coronene (C{sub 24}H{sub 12}), dilithium phthalocyanine (Li{sub 2}Pc, C{sub 32}H{sub 16}Li{sub 2}N{sub 8}), tetrabutylammonium lithium phthalocyanine (TBA-LiPc, C{sub 48}H{sub 52}LiN{sub 9}), and tetramethylammonium lithium phthalocyanine (TMA-LiPc, C{sub 36}H{sub 28}LiN{sub 9}). It was found (a) that the calculated term that corrects 0 K electronic energies to give Gibbs energies (thermal correction to Gibbs energy, TCGE) serves as a good approximation of the adsorbent binding energy required in order for a physisorption process to be thermodynamically allowed and (b) that the binding energy for neutral aromatic molecules varies as a function of curvature (e.g., corannulene versus coronene) or if electron-withdrawing or -donating groups are part of the adsorbent. A negatively charged aromatic ring, the lithium phthalocyanine complex anion, [LiPc]{sup -}, introduces charge-induced dipole interactions into the adsorption process, resulting in a doubling of the binding energy of Li{sub 2}Pc relative to corannulene. Experimental hydrogen adsorption results for Li{sub 2}Pc, which are consistent with MD simulation results using x-Li{sub 2}Pc to simulate the adsorbent, suggest that only one side of the phthalocyanine ring is used in the adsorption process. The introduction of a tetrabutylammonium cation as a replacement for one lithium ion in Li{sub 2}Pc has the effect of increasing the number of hydrogen molecules adsorbed from 10 (3.80 wt %) for Li{sub 2}Pc to 24 (5.93 wt %) at 77 K and 45 bar, suggesting that both sides of the phthalocyanine ring are available for hydrogen adsorption. MD simulations of layered tetramethylammonium lithium phthalocyanine molecular systems illustrate that doubling the wt % H{sub 2} adsorbed is possible via such a system. Ab initio calculations also suggest that layered or sandwich structures can result in significant reductions in the pressure required for hydrogen adsorption.

Scanlon, L. G.; Feld, W. A.; Balbuena, P. B.; Sandi, G.; Duan, F.; Underwood, K. A.; Hunter, N.; Mack, J.; Rottmayer, M. A.; Tsao, M; Chemical Sciences and Engineering Division; Wright-Patterson Air Force Base; Wright State Univ.; Texas A& M Univ.; Univ. of Cincinnati

2009-04-09T23:59:59.000Z

256

Hydrogen Storage and Thermoelectric Materials  

Science Conference Proceedings (OSTI)

Oct 20, 2011... Co0.95Pd0.05Te0.05Sb3 (with or without 0.1atomic% cerium) and .... Ion Beam Preparation of Li-Ion Battery Electrodes Li-Ion: Edward...

257

Designing Advanced Hydrogen Storage Materials  

Science Conference Proceedings (OSTI)

A3: Investigation on Co-combustion Kinetics of Anthracite Coal and Biomass Char by Thermogravimetric Analysis A4: Analysis of Micro-compositional and...

258

Synthesis and characterization of metal hydride/carbon aerogel composites for hydrogen storage  

Science Conference Proceedings (OSTI)

Two materials currently of interest for onboard lightweight hydrogen storage applications are sodium aluminum hydride (NaAlH4), a complex metal hydride, and carbon aerogels (CAs), a light porous material connected by several spherical nanoparticles. ...

Kuen-Song Lin; Yao-Jen Mai; Su-Wei Chiu; Jing-How Yang; Sammy L. I. Chan

2012-01-01T23:59:59.000Z

259

Sustainable Energy Science and Engineering Center Hydrogen Storage  

E-Print Network (OSTI)

Sustainable Energy Science and Engineering Center Hydrogen Storage #12;Sustainable Energy Science 1990 2000 2010 2020 Hydrogen pellets Mg(NH3)6Cl2 Hydrogen Storage Source: Ian Edwards, ITI Energy, May. Portable applications including: computing, cell-phones and cameras (the 3 `C's'). Main Energy Storage

Krothapalli, Anjaneyulu

260

Development and Testing of Hydrogen Storage System(s)  

E-Print Network (OSTI)

Development and Testing of Hydrogen Storage System(s) for Capturing Intermittent Renewable Energy ­ Analysis of Test Results for Hydrogen Storage Systems By Hawaii Natural Energy Institute School of Ocean of Kahua Ranch Hydrogen Storage System 3 3.1 Kahua Ranch Power System 3 3.2 Electrolyzer Experimental

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Hydrogen, Fuel Cells, and Infrastructure Technologies FY 2002 Progress Report Section III. Hydrogen Storage  

E-Print Network (OSTI)

. Hydrogen Storage #12;Hydrogen, Fuel Cells, and Infrastructure Technologies FY 2002 Progress Report 200 #12 square inch (psi) 7.5 wt % and 8.5 wt% Type IV composite hydrogen storage tanks of specified sizes for DOE Future Truck and Nevada hydrogen bus programs · Demonstrate 10,000 psi storage tanks Approach

262

Hydrogen Storage Systems Analysis Working Group Meeting 2007 Hydrogen Program Annual Review  

E-Print Network (OSTI)

they have initiated on solid state hydride tanks for hydrogen storage and other energy conversionHydrogen Storage Systems Analysis Working Group Meeting 2007 Hydrogen Program Annual Review Crystal Laboratory and Elvin Yuzugullu Sentech, Inc. June 28, 2007 #12;SUMMARY REPORT Hydrogen Storage

263

Porous iron and ferric oxide pellets for hydrogen storage: texture and transport characteristics  

Science Conference Proceedings (OSTI)

Materials for hydrogen storage based on the recovery reduction of Fe3O4 to iron and back iron oxidation to Fe3O4 by water vapor were studied. The preparation conditions for cylindrical pellets from ferric oxide/aluminium ... Keywords: hydrogen storage, inverse gas chromatography, steam iron process, transport parameters

Karel Soukup; Jan Rogut; Jacek Grabowski; Marian Wiatowski; Magdalena Ludwik-Parda?a; Petr Schneider; Olga olcov

2010-11-01T23:59:59.000Z

264

A Brief Overview of Hydrogen Storage Issues and Needs  

NLE Websites -- All DOE Office Websites (Extended Search)

Brief Overview of Hydrogen Storage Issues and Needs George Thomas and Sunita Satyapal Joint Tech Team Meeting Delivery, Storage and Fuels Pathway Tech Teams May 8-9, 2007 Storage...

265

NREL Wind to Hydrogen Project: Renewable Hydrogen Production for Energy Storage & Transportation (Presentation)  

DOE Green Energy (OSTI)

Presentation about NREL's Wind to Hydrogen Project and producing renewable hydrogen for both energy storage and transporation, including the challenges, sustainable pathways, and analysis results.

Ramsden, T.; Harrison, K.; Steward, D.

2009-11-16T23:59:59.000Z

266

MODIFIED BOROHYDRIDES FOR REVERSIBLE HYDROGEN STORAGE  

DOE Green Energy (OSTI)

This paper reports the results in the effort to destabilize lithium borohydride for reversible hydrogen storage. A number of metals, metal hydrides, metal chlorides and complex hydrides were selected and evaluated as the destabilization agents for reducing dehydriding temperature and generating dehydriding-rehydriding reversibility. It is found that some additives are effective. The Raman spectroscopic analysis shows the change of B-H binding nature.

Au, Ming

2006-05-10T23:59:59.000Z

267

ENERGY Hydrogen Pipeline Material Testing Facility  

Science Conference Proceedings (OSTI)

... enable safe and economical transport, delivery and storage of hydrogen fuel, an abun- dant, clean-burning alternative to conventional fossil fuels. ...

2013-01-31T23:59:59.000Z

268

Chemical bridges for enhancing hydrogen storage by spillover and methods for forming the same  

SciTech Connect

A composition for hydrogen storage includes a source of hydrogen atoms, a receptor, and a chemical bridge formed between the source and the receptor. The chemical bridge is formed from a precursor material. The receptor is adapted to receive hydrogen spillover from the source.

Yang, Ralph T.; Li, Yingwei; Qi, Gongshin; Lachawiec, Jr., Anthony J.

2012-12-25T23:59:59.000Z

269

QUEST FOR NEW MATERIALS FOR METHANE STORAGE ...  

Science Conference Proceedings (OSTI)

Quest for New Materials for Methane Storage: Gas Adsorption and Neutron Diffraction Measurements. Yang Peng, 1,2 Vaiva ...

270

Hydrogen Storage on Metal-Doped Ordered Mesoporous Carbons  

E-Print Network (OSTI)

Hydrogen Storage on Metal-Doped Ordered Mesoporous Carbons Shuguang Deng New Mexico State Meeting, May 18, 2010 #12;Outline · Research group · Hydrogen storage: background and status · Synthesis Adsorption in Ordered Mesoporous Carbon through Clathrate Formation" Int. J. Hydrogen Energy, 34, 8583

Nishiguchi, Michele

271

Hydrogen Storage Options: Technologies and Comparisons for Light-Duty Vehicle Applications  

E-Print Network (OSTI)

New Methods for the Storage of Hydrogen in Microspheres,15 th World Hydrogen Energy Conference, Yokohama, Japan,Uhlemann, M. , etals. , Hydrogen Storage in Different Carbon

Burke, Andy; Gardiner, Monterey

2005-01-01T23:59:59.000Z

272

Hydrogen Storage Options: Technologies and Comparisons for Light-Duty Vehicle Applications  

E-Print Network (OSTI)

hydrogen in storage varies between the various energy storagethe energy storage characteristics of the various hydrogenthat the energy densities of hydrogen storage technologies

Burke, Andrew; Gardnier, Monterey

2005-01-01T23:59:59.000Z

273

Hydrogen Storage Systems Anlaysis Working Group Meeting, December 12, 2006  

NLE Websites -- All DOE Office Websites (Extended Search)

Argonne National Laboratory DC Offices 955 L'Enfant Plaza, North, SW, Suite 6000 Washington, DC December 12, 2006 SUMMARY REPORT Compiled by Romesh Kumar Argonne National Laboratory and Laura Verduzco Sentech, Inc. February 28, 2007 SUMMARY REPORT Hydrogen Storage Systems Analysis Working Group Meeting December 12, 2006 955 L'Enfant Plaza, North, SW, Suite 6000, Washington, DC Meeting Objectives This meeting was one of a continuing series of biannual meetings of this Working Group. The objective of these meetings is to bring together the DOE research community involved in systems analysis of hydrogen storage materials and processes for information exchange and to update the researchers on related developments within the DOE program. A major thrust of

274

Storage depot for radioactive material  

Science Conference Proceedings (OSTI)

Vertical drilling of cylindrical holes in the soil, and the lining of such holes, provides storage vaults called caissons. A guarded depot is provided with a plurality of such caissons covered by shielded closures preventing radiation from penetrating through any linear gap to the atmosphere. The heat generated by the radioactive material is dissipated through the vertical liner of the well into the adjacent soil and thus to the ground surface so that most of the heat from the radioactive material is dissipated into the atmosphere in a manner involving no significant amount of biologically harmful radiation. The passive cooling of the radioactive material without reliance upon pumps, personnel, or other factor which might fail, constitutes one of the most advantageous features of this system. Moreover this system is resistant to damage from tornadoes or earthquakes. Hermetically sealed containers of radioactive material may be positioned in the caissons. Loading vehicles can travel throughout the depot to permit great flexibility of loading and unloading radioactive materials. Radioactive material can be shifted to a more closely spaced caisson after ageing sufficiently to generate much less heat. The quantity of material stored in a caisson is restricted by the average capacity for heat dissipation of the soil adjacent such caisson.

Szulinski, Milton J. (Richland, WA)

1983-01-01T23:59:59.000Z

275

Storage depot for radioactive material  

SciTech Connect

Vertical drilling of cylindrical holes in the soil, and the lining of such holes, provides storage vaults called caissons. A guarded depot is provided with a plurality of such caissons covered by shielded closures preventing radiation from penetrating through any linear gap to the atmosphere. The heat generated by the radioactive material is dissipated through the vertical liner of the well into the adjacent soil and thus to the ground surface so that most of the heat from the radioactive material is dissipated into the atmosphere in a manner involving no significant amount of biologically harmful radiation. The passive cooling of the radioactive material without reliance upon pumps, personnel, or other factor which might fail, constitutes one of the most advantageous features of this system. Moreover this system is resistant to damage from tornadoes or earthquakes. Hermetically sealed containers of radioactive material may be positioned in the caissons. Loading vehicles can travel throughout the depot to permit great flexibility of loading and unloading radioactive materials. Radioactive material can be shifted to a more closely spaced caisson after ageing sufficiently to generate much less heat. The quantity of material stored in a caisson is restricted by the average capacity for heat dissipation of the soil adjacent such caisson.

Szulinski, M.J.

1983-10-18T23:59:59.000Z

276

Hydrogen storage of energy for small power supply systems  

E-Print Network (OSTI)

Power supply systems for cell phone base stations using hydrogen energy storage, fuel cells or hydrogen-burning generators, and a backup generator could offer an improvement over current power supply systems. Two categories ...

Monaghan, Rory F. D. (Rory Francis Desmond)

2005-01-01T23:59:59.000Z

277

Electrolysis based hydrogen storage systems. Annual report, January 1, 1976--December 31, 1976  

SciTech Connect

This report describes work completed during the period January 1, 1976 to December 31, 1976, on an ERDA-sponsored program aimed at improvement in the cost and efficiency of electrolytic hydrogen production and development of the technique of using metal hydrides for hydrogen storage for stationary and transportation applications. The work on electrolytic hydrogen production includes work on advanced barrier materials for alkaline cells, studies of nickel alloy based and oxide catalysts for oxygen evolution. Related work on the program involving the H/sub 2/--Cl/sub 2/ electrochemical cell for energy storage is described. Work on hydrogen storage subsystems involving storage reservoir designs for the Hydrogen Technology Advanced-Component Test System (HYTACTS), engineering and metal hydride material test beds and tests of candidate container materials is presented. Progress on the development of new metal hydride materials and tailoring and testing of new alloy systems is summarized. This work emphasizes improvement in the initial activation step, high-cycle test of selected materials and the physical characteristics of cycled materials. The efforts on natural gas supplementation, hydrogen storage systems analysis and the project management of the ERDA Hydrogen Program by BNL are summarized.

Salzano, F J

1977-01-01T23:59:59.000Z

278

A New Platform for Hydrogen Storage and Carbon Capture  

Science Conference Proceedings (OSTI)

Presentation Title, Evaluating Chemical Adsorption on Nanodiamonds: A New Platform for Hydrogen Storage and Carbon Capture. Author(s), Lin Lai, Amanda...

279

High Density Hydrogen Storage System Demonstration Using NaAlH4 Based Complex Compound Hydrides  

DOE Green Energy (OSTI)

This final report describes the motivations, activities and results of the hydrogen storage independent project "High Density Hydrogen Storage System Demonstration Using NaAlH4 Based Complex Compound Hydrides" performed by the United Technologies Research Center under the Department of Energy Hydrogen Program, contract # DE-FC36-02AL67610. The objectives of the project were to identify and address the key systems technologies associated with applying complex hydride materials, particularly ones which differ from those for conventional metal hydride based storage. This involved the design, fabrication and testing of two prototype systems based on the hydrogen storage material NaAlH4. Safety testing, catalysis studies, heat exchanger optimization, reaction kinetics modeling, thermochemical finite element analysis, powder densification development and material neutralization were elements included in the effort.

Daniel A. Mosher; Xia Tang; Ronald J. Brown; Sarah Arsenault; Salvatore Saitta; Bruce L. Laube; Robert H. Dold; Donald L. Anton

2007-07-27T23:59:59.000Z

280

BIMETALLIC LITHIUM BOROHYDRIDES TOWARD REVERSIBLE HYDROGEN STORAGE  

DOE Green Energy (OSTI)

Borohydrides such as LiBH{sub 4} have been studied as candidates for hydrogen storage because of their high hydrogen contents (18.4 wt% for LiBH{sub 4}). Limited success has been made in reducing the dehydrogenation temperature by adding reactants such as metals, metal oxides and metal halides. However, full rehydrogenation has not been realized because of multi-step decomposition processes and the stable intermediate species produced. It is suggested that adding second cation in LiBH{sub 4} may reduce the binding energy of B-H. The second cation may also provide the pathway for full rehydrogenation. In this work, several bimetallic borohydrides were synthesized using wet chemistry, high pressure reactive ball milling and sintering processes. The investigation found that the thermodynamic stability was reduced, but the full rehydrogenation is still a challenge. Although our experiments show the partial reversibility of the bimetallic borohydrides, it was not sustainable during dehydriding-rehydriding cycles because of the accumulation of hydrogen inert species.

Au, M.

2010-10-21T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Durability study of a vehicle-scale hydrogen storage system.  

DOE Green Energy (OSTI)

Sandia National Laboratories has developed a vehicle-scale demonstration hydrogen storage system as part of a Work for Others project funded by General Motors. This Demonstration System was developed based on the properties and characteristics of sodium alanates which are complex metal hydrides. The technology resulting from this program was developed to enable heat and mass management during refueling and hydrogen delivery to an automotive system. During this program the Demonstration System was subjected to repeated hydriding and dehydriding cycles to enable comparison of the vehicle-scale system performance to small-scale sample data. This paper describes the experimental results of life-cycle studies of the Demonstration System. Two of the four hydrogen storage modules of the Demonstration System were used for this study. A well-controlled and repeatable sorption cycle was defined for the repeated cycling, which began after the system had already been cycled forty-one times. After the first nine repeated cycles, a significant hydrogen storage capacity loss was observed. It was suspected that the sodium alanates had been affected either morphologically or by contamination. The mechanisms leading to this initial degradation were investigated and results indicated that water and/or air contamination of the hydrogen supply may have lead to oxidation of the hydride and possibly kinetic deactivation. Subsequent cycles showed continued capacity loss indicating that the mechanism of degradation was gradual and transport or kinetically limited. A materials analysis was then conducted using established methods including treatment with carbon dioxide to react with sodium oxides that may have formed. The module tubes were sectioned to examine chemical composition and morphology as a function of axial position. The results will be discussed.

Johnson, Terry Alan; Dedrick, Daniel E.; Behrens, Richard, Jr.

2010-11-01T23:59:59.000Z

282

Hydrogen Storage in Wind Turbine Towers: Design Considerations; Preprint  

DOE Green Energy (OSTI)

The paramount considerations associated with a hydrogen tower are corrosion (in the form of hydrogen embrittlement) and structural failure (through bursting or fatigue life degradation). Although hydrogen embrittlement (HE) requires more research and experimentation, it does not appear to prohibit the use of turbine towers for hydrogen storage. Furthermore, the structural modifications required to store hydrogen in a tower are technically feasible. We discovered that hydrogen towers have a''crossover pressure'' at which their critical mode of failure crosses over from fatigue to bursting. The crossover pressure for many turbine towers is between 10 and 15 atm. The cost of hydrogen storage per unit of storage capacity is lowest near the crossover pressure. Above the crossover pressure, however, storage costs rise quickly.

Kottenstette, R.; Cotrell, J.

2003-09-01T23:59:59.000Z

283

Basic Research for Hydrogen Production, Storage and Use  

NLE Websites -- All DOE Office Websites (Extended Search)

DOE Hydrogen and Fuel Cells DOE Hydrogen and Fuel Cells Coordination Meeting 6/2/2003 DOE DOE - - BES Sponsored Workshop on BES Sponsored Workshop on Basic Research for Hydrogen Basic Research for Hydrogen Production, Storage and Use Production, Storage and Use Walter J. Stevens Walter J. Stevens Director Director Chemical Sciences, Geosciences, and Biosciences Division Chemical Sciences, Geosciences, and Biosciences Division Office of Basic Energy Sciences Office of Basic Energy Sciences Workshop dates: May 13-15, 2003 A follow-on workshop to BESAC-sponsored workshop on "Basic Research Needs to Assure a Secure Energy Future" Basic Energy Sciences Basic Energy Sciences Workshop on Hydrogen Production, Storage, and Use Workshop on Hydrogen Production, Storage, and Use DOE Hydrogen and Fuel Cells

284

Amineborane Based Chemical Hydrogen Storage - Final Report  

DOE Green Energy (OSTI)

The efficient regeneration of ammonia borane from BNHx spent fuel is one of the most challenging problems that will have to be overcome in order to utilize AB-based hydrogen storage. Three Center partners, LANL, PNNL and Penn, each took different complimentary approaches to AB regeneration. The Penn approach focused on a strategy involving spent-fuel digestion with superacidic acids to produce boron-halides (BX3) that could then be converted to AB by coordination/reduction/displacement processes. While the Penn boron-halide reduction studies successfully demonstrated that a dialkylsulfide-based coordination/reduction/displacement process gave quantitative conversions of BBr3 to ammonia borane with efficient and safe product separations, the fact that AB spent-fuels could not be digested in good yields to BX3 halides led to a No-Go decision on this overall AB-regeneration strategy.

Sneddon, Larry G.

2011-04-21T23:59:59.000Z

285

Inorganic Chemistry in Hydrogen Storage and Biomass Catalysis  

DOE Green Energy (OSTI)

Making or breaking C-H, B-H, C-C bonds has been at the core of catalysis for many years. Making or breaking these bonds to store or recover energy presents us with fresh challenges, including how to catalyze these transformations in molecular systems that are 'tuned' to minimize energy loss and in molecular and material systems present in biomass. This talk will discuss some challenging transformations in chemical hydrogen storage, and some aspects of the inorganic chemistry we are studying in the development of catalysts for biomass utilization.

Thorn, David [Los Alamos National Laboratory

2012-06-13T23:59:59.000Z

286

NREL: Hydrogen and Fuel Cells Research - Advanced Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced Materials Advanced Materials The Advanced Materials group within NREL's Materials and Computational Sciences Center develops novel and optimized materials for energy-related applications that include sorption-based hydrogen storage, fuel cells, catalysts, photovoltaics, batteries, electrochromics, electronics, sensors, electricity conduction, and thermal management. These R&D efforts use first-principle models combined with state-of-the-art synthetic and characterization techniques to rationally design and construct advanced materials with new and improved properties. In addition to creating specific material properties tailored for the application of interest by understanding the underlying chemical and physical mechanisms involved, the research focuses on developing materials

287

Designing Nanostructured Hybrid Materials for Energy Storage ...  

Science Conference Proceedings (OSTI)

The resulting devices fabricated with low-cost materials through the scalable ... which can offer >5 times higher charge storage capacity than current technology.

288

Characterization and High Throughput Analysis of Metal Hydrides for Hydrogen Storage  

E-Print Network (OSTI)

low volume, energy efficient hydrogen storage system if fuelof Energy (DOE) for on-board hydrogen storage. However,hydrogen storage system as defined by the Department of Energy.

Barcelo, Steven James

2009-01-01T23:59:59.000Z

289

Borazine-boron nitride hybrid hydrogen storage system  

DOE Patents (OSTI)

A hybrid hydrogen storage composition includes a first phase and a second phase adsorbed on the first phase, the first phase including BN for storing hydrogen by physisorption and the second phase including a borazane-borazine system for storing hydrogen in combined form as a hydride.

Narula, Chaitanya K. (Knoxville, TN); Simonson, J. Michael (Knoxville, TN); Maya, Leon (Knoxville, TN); Paine, Robert T. (Albuquerque, NM)

2008-04-22T23:59:59.000Z

290

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage in Carbon Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Wednesday, 28 June 2006 00:00 Two of the major challenges for humanity in the next 20 years are the shrinking availability of fossil fuels and the global warming and potential climate changes that result from their ever-increasing use. One possible solution to these problems is to use an energy carrier such as hydrogen, and ways to produce and store hydrogen in electric power plants and vehicles is a major research focus for materials scientists and chemists. To realize hydrogen-powered transport, for example, it is necessary to find ways to store hydrogen onboard vehicles efficiently and safely. Nanotechnology in the form of single-walled carbon nanotubes provides a candidate storage medium. A U.S., German, and Swedish collaboration led by researchers from the Stanford Synchrotron Radiation Laboratory (SSRL) used ALS Beamline 11.0.2 and SSRL Beamline 5-1 to investigate the chemical interaction of hydrogen with single-walled carbon nanotubes (SWCNs). Their findings demonstrate substantial hydrogen storage is both feasible and reversible.

291

CATALYTICALLY ENCHANCED SYSTEMS FOR HYDROGEN STORAGE  

DOE Green Energy (OSTI)

Previous U.S. DOE sponsored research at the University of Hawaii resulted in the development of methods of doping of sodium aluminum hydride, NaAlH4 with titanium, zirconium and other catalysts such that: dehydriding occurs at temperatures as low as 100C; rehydriding requires less than 1 h; and >4 weight percent hydrogen can be repeatedly cycled through dehydriding/rehydriding. These materials appeared to be on the threshold of practical viability as hydrogen carriers for onboard fuel cells. However, it was apparent that further kinetic enhancement was required to achieve commercial viability. Thus, one of the primary goals of this project was to develop the requisite improved catalysts. Over the course of this project, a variety of titanium and zirconium dopant precursors were investigated. Moreover, the approach was to conduct guided search for improved catalysts by obtaining a fundamental understanding of the chemical nature of the titanium dopants and their mechanism of action. Therefore, the projected also aimed to determined the chemical nature of the titanium species that are formed upon mechanical milling of NaAlH4 with the dopant precursors through synchrotron X-ray and neutron diffraction as well as transmission electron microscopy, scanning electron microscopy, and electron paramagnetic resonance (EPR) spectroscopy. In addition to kinetic studies, insight into the mechanism of action of the dopants was gained through studies of the destabilization of hydrogen in NaAlH4 by the dopants through infrared, NMR, and anelastic spectroscopy.

Craig M. Jensen

2007-04-23T23:59:59.000Z

292

Second Generation MOF's for Hydrogen Storage  

DOE Green Energy (OSTI)

This final technical report summarizes work exploring strategies to generate second generation metal organic frameworks (MOFs). These strategies were (a) the formation of interpenetrated frameworks and (b) the generation of coordinatively unsaturated metal centers (open metal sites). In the first phase of the project the effectiveness of these strategies was evaluated experimentally by measuring the saturation hydrogen uptake at high pressure and low temperature of 14 MOFs. The results of these studies demonstrated that surface area is the most useful parameter that correlates with ultimate hydrogen capacity. The strategy of interpenetration has so far failed to produce MOFs with high surface areas and therefore high saturation capacities for hydrogen have not been achieved. The incorporation of coordinatively unsaturated metal centers, however, is a promising strategy that allows higher heats of H2 adsorption to be realized without compromising surface area. Based on these initial findings, research efforts in phase two have concentrated on the discovery of new ultrahigh surface area materials with metal centers capable of supporting coordinative unsaturation without structural collapse. One approach has been the synthesis of new organic linkers that have more exposed edges, which is a factor that contributes to increasing surface area, at least when considering subunits of graphene sheets. Another strategy has been to synthesize MOFs with reduced symmetry linkers in order to generate structure types that are less likely to interpenetrate. Successful implementation of these strategies has resulted in the synthesis of 7 new compounds one of which is the highest surface area Cu based MOF reported to date.

Adam Matzger

2008-05-31T23:59:59.000Z

293

Hydrogen Storage: U.S. Department of Energy Hydrogen and Fuel...  

NLE Websites -- All DOE Office Websites (Extended Search)

ST-019: Multiply Surface-Functionalized Nanoporous Carbon for Vehicular Hydrogen Storage Peter Pfeifer; University of Missouri Brief Summary of Project: The objective of this...

294

Design and evaluation of seasonal storage hydrogen peak electricity supply system  

E-Print Network (OSTI)

The seasonal storage hydrogen peak electricity supply system (SSHPESS) is a gigawatt-year hydrogen storage system which stores excess electricity produced as hydrogen during off-peak periods and consumes the stored hydrogen ...

Oloyede, Isaiah Olanrewaju

2011-01-01T23:59:59.000Z

295

Heat storage materials. Final report  

DOE Green Energy (OSTI)

The properties of various alloys, eutectics, and salts in respect to their usefulness for latent and sensible heat storage are surveyed and reported. (TFD)

Birchenall, C.E.

1977-12-01T23:59:59.000Z

296

Fuel Cell Technologies Office: Hydrogen Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Current Technology DOE R&D Activities Quick Links Hydrogen Production Hydrogen Delivery Fuel Cells Technology Validation Manufacturing Codes & Standards Education Systems...

297

Some recent efforts in chemical hydrogen storage at Loa Alamos  

DOE Green Energy (OSTI)

Within the transportation sector, a necessity towards realizing the use of hydrogen (H{sub 2}) as an alternative fuel, is its storage for controlled delivery. The U.S. DOE's Centers of Excellence (CoE) in H{sub 2} storage have pursued different methodologies (metal hydrides, chemical hydrides, and sorbents), for the express purpose of supplanting gasoline's current > 300 mile driving range. Chemical H{sub 2} storage has been dominated by one material, ammonia borane (H3B-NH3, AB), due to its high gravimetric capacity of H{sub 2} (19.6 wt %) and low molecular weight (30.7 g mol{sup -1} ). As such, a number of publications have described H{sub 2} release from amine boranes, yielding various rates depending on the method applied. The viability of any storage system is also dependent on efficient recyclability. Within our CoE we have thus endeavored to find efficient base-metal catalyzed AB dehydrogenation pathways and regeneration schemes for the spent fuel from H{sub 2} depleted AB. We will present some recent results in these areas in this vein.

Gordon, John C [Los Alamos National Laboratory; Davis, Benjamin L [Los Alamos National Laboratory; Burrell, Anthony K [Los Alamos National Laboratory; Nakagawa, Tessui [Los Alamos National Laboratory; Ott, Kevin C [Los Alamos National Laboratory; Smythe, Nathan C [Los Alamos National Laboratory; Sutton, Andrew D [Los Alamos National Laboratory; Henson, Neil J [Los Alamos National Laboratory; Baker, R. Thomas [U. OTTAWA; Hamilton, Charles W [OD VISION, INC.; Dixon, David A [U. ALABAMA; Garner Ill, Edward B [U. ALABAMA; Vasiliu, Monica [U. ALABAMA

2010-12-08T23:59:59.000Z

298

Hydrogen Storage … DOE Program/Targets and Workshop Objectives  

NLE Websites -- All DOE Office Websites (Extended Search)

Argonne National Laboratory Argonne National Laboratory August 14, 2002 JoAnn Milliken Neil Rossmeissl Hydrogen, Fuel Cells & Infrastructure Technologies Program Energy Efficiency and Renewable Energy (EERE) Hydrogen Storage - DOE Program/Targets and Workshop Objectives Outline * The Hydrogen, Fuel Cells, and Infrastructure Program * Role of FreedomCAR * R&D Priorities * DOE Fuel Cell & Hydrogen Activities * DOE Targets/Status * Workshop Objectives Hydrogen and Fuel Cells are a High Priority within EERE Hydrogen Vision/Roadmap Workshops held Nov 2001 & April 2002 with industry stakeholders * Hydrogen Vision complete * Hydrogen Roadmap draft completed * www.eren.doe.gov/hydrogen/features.html Technology development for hydrogen fuel cell vehicles is the thrust of the

299

Materials Metrology for a Hydrogen Distribution Infrastructure  

Science Conference Proceedings (OSTI)

Addressing Materials Processing Issues for USC Steam Turbines: Cast Versions of ... Co-Production of Pure Hydrogen and Electricity from Coal Syngas via the...

300

Hydrogen Storage at Ambient Temperature by the Spillover Mechanism  

DOE Green Energy (OSTI)

The goal of this project was to develop new nanostructured sorbent materials, using the hydrogen spillover mechanism that could meet the DOE 2010 system targets for on-board vehicle hydrogen storage. Hydrogen spillover may be broadly defined as the transport (i.e., via surface diffusion) of dissociated hydrogen adsorbed or formed on a first surface onto another surface. The first surface is typically a metal (that dissociates H2) and the second surface is typically the support on which the metal is doped. Hydrogen spillover is a well documented phenomenon in the catalysis literature, and has been known in the catalysis community for over four decades, although it is still not well understood.1, 2 Much evidence has been shown in the literature on its roles played in catalytic reactions. Very little has been studied on hydrogen storage by spillover at ambient temperature. However, it is also known to occur at such temperature, e.g., direct evidence has been shown for spillover on commercial fuel-cell, highly dispersed Pt/C, Ru/C and PtRu/C catalysts by inelastic neutron scattering.3 To exploit spillover for storage, among the key questions are whether spillover is reversible at ambient temperature and if the adsorption (refill) and desorption rates at ambient temperature are fast enough for automotive applications. In this project, we explored new sorbents by using a transition metal (e.g., Pt, Ru, Pd and Ni) as the H2 dissociation source and sorbents as the hydrogen receptor. The receptors included superactivated carbons (AX-21 and Maxsorb), metal organic frameworks (MOFs) and zeolites. Different metal doping methods have been used successfully to achieve high metal dispersion thereby allowing significant spillover enhancements, as well as a bridging technique used for bridging to MOFs. Among the metals tested, Pt is the hardest to achieve high metal dispersion (and consequently spillover) while Ru is the easiest to disperse. By properly dispersing Pt on superactivated carbons (by following detailed doping and activation conditions given in our publications, e.g., Ref. 12), the storage capacities are increased two-fold (doubled) while slightly more than doubled by Ru doping. The bridging technique remains highly empirical and sample-to-sample consistency is difficult to achieve; however, significant enhancements by spillover can be achieved if the synthesis and pretreatment are done properly. Pitfalls in sample syntheses for both metal doped and bridged sorbents are pointed out in the report; deviations from the synthesis and pretreatment conditions will lead to diminished or no spillover effects. Due to the high bulk densities of zeolites, metal doped zeolites are shown to be most promising for achieving high volumetric storage capacities by spillover. Kinetics of both spillover and reverse spillover (i.e., desorption) at ambient temperature are also studied. This report summarizes the progress made in the project.

Yang , Ralph T.

2011-02-04T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Sub-Nanostructured Non Transition Metal Complex Grids for Hydrogen Storage  

DOE Green Energy (OSTI)

This project involved growing sub-nanostructured metal grids to increase dynamic hydrogen storage capacity of metal hydride systems. The nano particles of any material have unique properties unlike its bulk form. Nano-structuring metal hydride materials can result in: {sm_bullet}Increased hydrogen molecule dissociation rate, {sm_bullet} Increased hydrogen atom transport rate, {sm_bullet} Decreased decrepitation caused by cycling, {sm_bullet} Increased energy transfer in the metal matrix, {sm_bullet} Possible additional contribution by physical adsorption, and {sm_bullet} Possible additional contribution by quantum effects The project succeeded in making nano-structured palladium using electrochemical growth in templates including zeolites, mesoporous silica, polycarbonate films and anodized alumina. Other metals were used to fine-tune the synthesis procedures. Palladium was chosen to demonstrate the effects of nano-structuring since its bulk hydrogen storage capacity and kinetics are well known. Reduced project funding was not sufficient for complete characterization of these materials for hydrogen storage application. The project team intends to seek further funding in the future to complete the characterization of these materials for hydrogen storage.

Dr. Orhan Talu; Dr. Surendra N. Tewari

2007-10-27T23:59:59.000Z

302

Electric utility applications of hydrogen energy storage systems  

DOE Green Energy (OSTI)

This report examines the capital cost associated with various energy storage systems that have been installed for electric utility application. The storage systems considered in this study are Battery Energy Storage (BES), Superconducting Magnetic Energy Storage (SMES) and Flywheel Energy Storage (FES). The report also projects the cost reductions that may be anticipated as these technologies come down the learning curve. This data will serve as a base-line for comparing the cost-effectiveness of hydrogen energy storage (HES) systems in the electric utility sector. Since pumped hydro or compressed air energy storage (CAES) is not particularly suitable for distributed storage, they are not considered in this report. There are no comparable HES systems in existence in the electric utility sector. However, there are numerous studies that have assessed the current and projected cost of hydrogen energy storage system. This report uses such data to compare the cost of HES systems with that of other storage systems in order to draw some conclusions as to the applications and the cost-effectiveness of hydrogen as a electricity storage alternative.

Swaminathan, S.; Sen, R.K.

1997-10-15T23:59:59.000Z

303

Hydrogen storage-bed design for tritium systems test assembly  

DOE Green Energy (OSTI)

The Los Alamos National Laboratory has completed the design of a hydrogen storage bed for the Tritium Systems Test Assembly (TSTA). Our objective is to store hydrogen isotopes as uranium hydrides and recover them by dehydriding. The specific use of the storage bed is to store DT gas as U(D,T)/sub 3/ when it is required for the TSTA. The hydrogen storage bed consists of a primary container in which uranium powder is stored and a secondary container for a second level of safety in gas confinement. The primary container, inlet and outlet gas lines, cartridge heaters, and instrumentation are assembled in the secondary container. The design of the hydrogen storage bed is presented, along with the modeling and analysis of the bed behavior during hydriding-dehydriding cycles.

Cullingford, H.S.; Wheeler, M.G.; McMullen, J.W.

1981-01-01T23:59:59.000Z

304

Palladium Coated Kieselghuhr for Simultaneous Separation and Storage of Hydrogen  

DOE Green Energy (OSTI)

This paper will discuss characteristics of the palladium-coated kieselguhr or diatomaceous earth, design and operation of the FTB, and results of performance tests such as separation efficiency, hydrogen storage capacity and system heat transfer characteristics.

Hsu, R.H.

2001-10-19T23:59:59.000Z

305

Fuel Cell Technologies Office: Hydrogen Storage Workshop Proceedings  

NLE Websites -- All DOE Office Websites (Extended Search)

Thoughts on Fundamentals (PDF 255 KB), P. Teagan and M. Rona, TIAX Hydrogen Storage in Carbon Nanotubes (PDF 1.19 MB), Jack E. Fischer, University of Pennsylvania Advanced...

306

Hydrogen storage via metal hydrides for utility and automotive energy storage applications. [HCl electrolysis for H/sub 2/--Cl/sub 2/ fuel cells  

DOE Green Energy (OSTI)

Brookhaven National Laboratory is currently supported by ERDA to develop the technology and techniques for storing hydrogen via metal hydrides. Hydrogen is able to react with a wide variety of metal and metal alloy materials to form hydride compounds of hydrogen and metals. These compounds differ in stability--some are relatively unstable and can be readily formed and decomposed at low temperatures. The use of these systems for hydrogen storage involves the design of heat exchanger and mass transfer systems, i.e., removal of heat during the charging reaction and addition of heat during the discharge reaction. The most notable example of a metal hydride material is iron titanium which shows promise of being economical for a number of near term hydrogen storage applications. Recent work and progress on the development of metal hydrides for hydrogen storage connected with utility energy storage applications and natural gas supplementation are discussed and electric-to-electric storage system is described in some detail. A system of energy storage involving the electrolysis of hydrochloric acid is described which would utilize metal hydrides to store the hydrogen. In addition, the use of metal hydrides for hydrogen storage in automotive systems is described.

Salzano, F J; Braun, C; Beaufrere, A; Srinivasan, S; Strickland, G; Reilly, J J; Waide, C

1976-08-01T23:59:59.000Z

307

Influence of the pore size in multi-walled carbon nanotubes on the hydrogen storage behaviors  

SciTech Connect

Activated multi-walled carbon nanotubes (A-MWCNTs) were prepared using a chemical activation method to obtain well-developed pore structures for use as hydrogen storage materials. The microstructure and crystallinity of the A-MWCNTs were evaluated by X-ray diffraction and Fourier transform Raman spectroscopy. The textural properties of the A-MWCNTs were investigated by nitrogen gas sorption analysis at 77 K. The hydrogen storage capacity of the A-MWCNTs was evaluated at 77 K and 1 bar. The results showed that the specific surface area of the MWCNTs increased from 327 to 495 m{sup 2}/g as the activation temperature was increased. The highest hydrogen storage capacity was observed in the A-MWCNTs sample activated at 900 Degree-Sign C (0.54 wt%). This was attributed to it having the narrowest microporosity, which is a factor closely related to the hydrogen storage capacity. This shows that the hydrogen storage behaviors depend on the pore volume. Although a high pore volume is desirable for hydrogen storage, it is also severely affected if the pore size in the A-MWCNTs for the hydrogen molecules is suitable for creating the activation process. Highlights: Black-Right-Pointing-Pointer The AT-800 and AT-900 samples were prepared by a chemical activation method at activation temperature of 800 and 900 Degree-Sign C, respectively. Black-Right-Pointing-Pointer The AT-900 sample has the narrowest peak in comparison with the AT-800 sample, resulting from the overlap of the two peaks (Peak I and Peak II). Black-Right-Pointing-Pointer This overlapping effect is due to the newly created micropores or shrinkages of pores in Peak II. So, these determining characteristics are essential for designing materials that are suitable for molecular hydrogen storage.

Lee, Seul-Yi [Department of Chemistry, Inha University, 253, Nam-gu, Incheon 402-751 (Korea, Republic of)] [Department of Chemistry, Inha University, 253, Nam-gu, Incheon 402-751 (Korea, Republic of); Park, Soo-Jin, E-mail: sjpark@inha.ac.kr [Department of Chemistry, Inha University, 253, Nam-gu, Incheon 402-751 (Korea, Republic of)] [Department of Chemistry, Inha University, 253, Nam-gu, Incheon 402-751 (Korea, Republic of)

2012-10-15T23:59:59.000Z

308

Analyses of Compressed Hydrogen On-Board Storage Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Compressed Compressed Hydrogen On-Board Storage Systems © 2010 TIAX LLC Compressed and Cryo-Compressed Hydrogen Storage Workshop February 14, 2011 Jeff Rosenfeld Karen Law Jayanti Sinha TIAX LLC 35 Hartwell Ave Lexington, MA 02421-3102 Tel. 781-879-1708 Fax 781-879-1201 www.TIAXLLC.com Reference: D0268 Overview Project Objectives Project Objectives Description Overall Help guide DOE and developers toward promising R&D and commercialization pathways by evaluating the status of the various on-board hydrogen storage technologies on a consistent basis On-Board Storage System Assessment Evaluate or develop system-level designs for the on-board storage system to project bottom-up factory costs Off-Board Fuel Cycle Assessment Evaluate or develop designs and cost inputs for the fuel cycle to

309

Chemical Hydride Slurry for Hydrogen Production and Storage  

DOE Green Energy (OSTI)

?\tDuring the investigation of hydriding techniques, we learned that magnesium hydride in a slurry can also be cycled in a rechargeable fashion. Thus, magnesium hydride slurry can act either as a chemical hydride storage medium or as a rechargeable hydride storage system. Hydrogen can be stored and delivered and then stored again thus significantly reducing the cost of storing and delivering hydrogen. Further evaluation and development of this concept will be performed as follow-on work under a

McClaine, Andrew W.

2008-09-30T23:59:59.000Z

310

Develop Improved Materials to Support the Hydrogen Economy  

DOE Green Energy (OSTI)

The Edison Materials Technology Center (EMTEC) solicited and funded hydrogen infrastructure related projects that have a near term potential for commercialization. The subject technology of each project is related to the US Department of Energy hydrogen economy goals as outlined in the multi-year plan titled, 'Hydrogen, Fuel Cells and Infrastructure Technologies Program Multi-Year Research, Development and Demonstration Plan.' Preference was given to cross cutting materials development projects that might lead to the establishment of manufacturing capability and job creation. The Edison Materials Technology Center (EMTEC) used the US Department of Energy hydrogen economy goals to find and fund projects with near term commercialization potential. An RFP process aligned with this plan required performance based objectives with go/no-go technology based milestones. Protocols established for this program consisted of a RFP solicitation process, white papers and proposals with peer technology and commercialization review (including DoE), EMTEC project negotiation and definition and DoE cost share approval. Our RFP approach specified proposals/projects for hydrogen production, hydrogen storage or hydrogen infrastructure processing which may include sensor, separator, compression, maintenance, or delivery technologies. EMTEC was especially alert for projects in the appropriate subject area that have cross cutting materials technology with near term manufacturing and commercialization opportunities.

Dr. Michael C. Martin

2012-07-18T23:59:59.000Z

311

Bulk materials storage handling and transportation  

Science Conference Proceedings (OSTI)

This book contains papers on bulk materials storage, handling, and transportation. Topic areas covered include: mechanical handling; pneumatic conveying; transportation; freight pipeliners; storage and discharge systems; integrated handling systems; automation; environment and sampling; feeders and flow control; structural design; large mobile machines; and grain handling.

Not Available

1983-01-01T23:59:59.000Z

312

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Two of the major challenges for humanity in the next 20 years are the shrinking availability of fossil fuels and the global warming and potential climate changes that result from their ever-increasing use. One possible solution to these problems is to use an energy carrier such as hydrogen, and ways to produce and store hydrogen in electric power plants and vehicles is a major research focus for materials scientists and chemists. To realize hydrogen-powered transport, for example, it is necessary to find ways to store hydrogen onboard vehicles efficiently and safely. Nanotechnology in the form of single-walled carbon nanotubes provides a candidate storage medium. A U.S., German, and Swedish collaboration led by researchers from the Stanford Synchrotron Radiation Laboratory (SSRL) used ALS Beamline 11.0.2 and SSRL Beamline 5-1 to investigate the chemical interaction of hydrogen with single-walled carbon nanotubes (SWCNs). Their findings demonstrate substantial hydrogen storage is both feasible and reversible.

313

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Two of the major challenges for humanity in the next 20 years are the shrinking availability of fossil fuels and the global warming and potential climate changes that result from their ever-increasing use. One possible solution to these problems is to use an energy carrier such as hydrogen, and ways to produce and store hydrogen in electric power plants and vehicles is a major research focus for materials scientists and chemists. To realize hydrogen-powered transport, for example, it is necessary to find ways to store hydrogen onboard vehicles efficiently and safely. Nanotechnology in the form of single-walled carbon nanotubes provides a candidate storage medium. A U.S., German, and Swedish collaboration led by researchers from the Stanford Synchrotron Radiation Laboratory (SSRL) used ALS Beamline 11.0.2 and SSRL Beamline 5-1 to investigate the chemical interaction of hydrogen with single-walled carbon nanotubes (SWCNs). Their findings demonstrate substantial hydrogen storage is both feasible and reversible.

314

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Two of the major challenges for humanity in the next 20 years are the shrinking availability of fossil fuels and the global warming and potential climate changes that result from their ever-increasing use. One possible solution to these problems is to use an energy carrier such as hydrogen, and ways to produce and store hydrogen in electric power plants and vehicles is a major research focus for materials scientists and chemists. To realize hydrogen-powered transport, for example, it is necessary to find ways to store hydrogen onboard vehicles efficiently and safely. Nanotechnology in the form of single-walled carbon nanotubes provides a candidate storage medium. A U.S., German, and Swedish collaboration led by researchers from the Stanford Synchrotron Radiation Laboratory (SSRL) used ALS Beamline 11.0.2 and SSRL Beamline 5-1 to investigate the chemical interaction of hydrogen with single-walled carbon nanotubes (SWCNs). Their findings demonstrate substantial hydrogen storage is both feasible and reversible.

315

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Two of the major challenges for humanity in the next 20 years are the shrinking availability of fossil fuels and the global warming and potential climate changes that result from their ever-increasing use. One possible solution to these problems is to use an energy carrier such as hydrogen, and ways to produce and store hydrogen in electric power plants and vehicles is a major research focus for materials scientists and chemists. To realize hydrogen-powered transport, for example, it is necessary to find ways to store hydrogen onboard vehicles efficiently and safely. Nanotechnology in the form of single-walled carbon nanotubes provides a candidate storage medium. A U.S., German, and Swedish collaboration led by researchers from the Stanford Synchrotron Radiation Laboratory (SSRL) used ALS Beamline 11.0.2 and SSRL Beamline 5-1 to investigate the chemical interaction of hydrogen with single-walled carbon nanotubes (SWCNs). Their findings demonstrate substantial hydrogen storage is both feasible and reversible.

316

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Hydrogen Storage in Carbon Nanotubes Through Formation of C-H Bonds Print Two of the major challenges for humanity in the next 20 years are the shrinking availability of fossil fuels and the global warming and potential climate changes that result from their ever-increasing use. One possible solution to these problems is to use an energy carrier such as hydrogen, and ways to produce and store hydrogen in electric power plants and vehicles is a major research focus for materials scientists and chemists. To realize hydrogen-powered transport, for example, it is necessary to find ways to store hydrogen onboard vehicles efficiently and safely. Nanotechnology in the form of single-walled carbon nanotubes provides a candidate storage medium. A U.S., German, and Swedish collaboration led by researchers from the Stanford Synchrotron Radiation Laboratory (SSRL) used ALS Beamline 11.0.2 and SSRL Beamline 5-1 to investigate the chemical interaction of hydrogen with single-walled carbon nanotubes (SWCNs). Their findings demonstrate substantial hydrogen storage is both feasible and reversible.

317

Electrolysis based hydrogen storage system. Semiannual report, January 1--June 30, 1977  

SciTech Connect

The work described in this report was accomplished during the period January 1 to June 30, 1977 on an ERDA-sponsored program aimed at improving the cost and efficiency of electrolytic hydrogen production and at developing the technique of using metal-hydride hydrogen storage for stationary and transportation applications. The related work of organizations having subcontracts with BNL is included; and the effort on natural-gas supplementation, systems analysis, and project management of the ERDA Hydrogen Program by BNL are summarized. Work in the hydrogen production area includes hardware development and cell materials testing for both acid and alkaline water electrolyzers. Also reported is related work on development of the reversible H/sub 2/-Cl/sub 2/ electrochemical cell which is the key component in an electrical energy storage system proposed for utility use. In the area of Hydrogen Storage Subsystems, the progress is reported on solutions to the hydride expansion problem, design of the Hydrogen Technology Advanced Component Test System, design of two hydrogen reservoirs, improved Fe-Ti-based hydrides, and studies on the recovery of storage capacity following poisoning by impurities in the hydrogen.

Salzano, F.J.

1977-10-01T23:59:59.000Z

318

Novel synthesis and characterisation of Li-N-(H)-based materials for energy storage and conversion.  

E-Print Network (OSTI)

??This work was motivated by the extensive research on Li-N-(H)-based materials, which have attracted increasing interest for potential applications in hydrogen storage and lithium-ion batteries (more)

Tapia Ruiz, Nuria

2013-01-01T23:59:59.000Z

319

Optimization of compression and storage requirements at hydrogen refueling stations.  

SciTech Connect

The transition to hydrogen-powered vehicles requires detailed technical and economic analyses of all aspects of hydrogen infrastructure, including refueling stations. The cost of such stations is a major contributor to the delivered cost of hydrogen. Hydrogen refueling stations require not only dispensers to transfer fuel onto a vehicle, but also an array of such ancillary equipment as a cascade charging system, storage vessels, compressors and/or pumps/evaporators. This paper provides detailed information on design requirements for gaseous and liquid hydrogen refueling stations and their associated capital and operating costs, which in turn impact hydrogen selling price at various levels of hydrogen demand. It summarizes an engineering economics approach which captures the effect of variations in station size, seasonal, daily and hourly demand, and alternative dispensing rates and pressures on station cost. Tradeoffs in the capacity of refueling station compressors, storage vessels, and the cascade charging system result in many possible configurations for the station. Total costs can be minimized by optimizing that configuration. Using a methodology to iterate among the costs of compression, storage and cascade charging, it was found that the optimum hourly capacity of the compressor is approximately twice the station's average hourly demand, and the optimum capacity of the cascade charging system is approximately 15% of the station's average daily demand. Further, for an hourly demand profile typical of today's gasoline stations, onsite hydrogen storage equivalent to at least 1/3 of the station's average daily demand is needed to accommodate peak demand.

Elgowainy, A.; Mintz, M.; Kelly, B.; Hooks, M.; Paster, M. (Energy Systems); (Nexant, Inc.); (TIAX LLC)

2008-01-01T23:59:59.000Z

320

Workshop on Test Procedures for Materials for Hydrogen ...  

Science Conference Proceedings (OSTI)

Test Procedures for Hydrogen Pipelines. ... The NIST Workshop on Materials Test Procedures for Hydrogen Pipelines Proceedings is now available. ...

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

New Materials for Hydrogen Pipelines  

NLE Websites -- All DOE Office Websites (Extended Search)

Barbara Frame, Mike Simonson, Cliff Eberle, Jim Blencoe, and Tim Armstrong Hydrogen Pipeline R&D Project Review Meeting January 5-6, 2005 Oak Ridge National Laboratory 2 OAK...

322

Iron titanium manganase alloy hydrogen storage  

DOE Patents (OSTI)

A three component alloy capable of reversible sorption of hydrogen having the chemical formula TiFe.sub.1-x Mn.sub.x where x is in the range of about 0.02 to 0.5 and the method of storing hydrogen using said alloy.

Reilly, James J. (Bellport, NY); Wiswall, Jr., Richard H. (Brookhaven, NY)

1979-01-01T23:59:59.000Z

323

Novel Carbon(C)-Boron(B)-Nitrogen(N)-Containing H2 Storage Materials - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

1 1 FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program Shih-Yuan Liu University of Oregon Department of Chemistry 1253 University of Oregon Eugene, OR 97403-1253 Phone: (541) 346-5573 Email: lsy@uoregon.edu In colloaboration with: * Dr. Tom Autrey, Dr. Abhi Karkamkar, and Mr. Jamie Holladay Pacific Northwest National Laboratory * Dr. David Dixon The University of Alabama * Dr. Paul Osenar Protonex Technology Corporation DOE Managers HQ: Grace Ordaz Phone: (202) 586-8350 Email: Grace.Ordaz@ee.doe.gov GO: Katie Randolph Phone: (720) 356-1759 Email: Katie.Randolph@go.doe.gov

324

Theory of Hydrogen Storage in Complex Hydrides - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

53 53 FY 2012 Annual Progress Report DOE Hydrogen and Fuel Cells Program Christopher Wolverton Department of Materials Science & Engineering, Northwestern University 2220 Campus Drive, Room 2036 Evanston, IL 60208-3108 Phone: (734) 678-6319 Email: c-wolverton@northwestern.edu Vidvuds Ozolins Department of Materials Science & Engineering, University of California, Los Angeles DOE Program Officer: James Davenport Program Manager Theoretical Condensed Matter Physics Office of Basic Energy Sciences Email: James.Davenport@science.doe.gov Phone: (301) 903-0035 Objectives Using first-principles methods, determine the atomic- level processes that are rate limiting in hydrogen storage

325

Hydrogen Storage -Overview George Thomas, Hydrogen Consultant to SNL*  

E-Print Network (OSTI)

75 100 125 hydrogen m ethane ethane propane butane pentane hexane heptane octane (gasoline) cetane (diesel) octane (gasoline) heptane hexane pentane butane ethane propane ethanol m ethane m ethanol am m

326

Carbide-Derived Carbons with Tunable Porosity Optimized for Hydrogen Storage  

SciTech Connect

On-board hydrogen storage is a key requirement for fuel cell-powered cars and trucks. Porous carbon-based materials can in principle adsorb more hydrogen per unit weight at room temperature than liquid hydrogen at -176 oC. Achieving this goal requires interconnected pores with very high internal surface area, and binding energies between hydrogen and carbon significantly enhanced relative to H2 on graphite. In this project a systematic study of carbide-derived carbons, a novel form of porous carbon, was carried out to discover a high-performance hydrogen sorption material to meet the goal. In the event we were unable to improve on the state of the art in terms of stored hydrogen per unit weight, having encountered the same fundamental limit of all porous carbons: the very weak interaction between H2 and the carbon surface. On the other hand we did discover several strategies to improve storage capacity on a volume basis, which should be applicable to other forms of porous carbon. Further discoveries with potentially broader impacts include Proof that storage performance is not directly related to pore surface area, as had been previously claimed. Small pores (< 1.5 nm) are much more effective in storing hydrogen than larger ones, such that many materials with large total surface areas are sub-par performers. Established that the distribution of pore sizes can be controlled during CDC synthesis, which opens the possibility of developing high performance materials within a common family while targeting widely disparate applications. Examples being actively pursued with other funding sources include methane storage, electrode materials for batteries and supercapacitors with record high specific capacitance, and perm-selective membranes which bind cytokines for control of infections and possibly hemodialysis filters.

Fisher, John E.; Gogotsi, Yury; Yildirim, Taner

2010-01-07T23:59:59.000Z

327

Hydrogen Storage I - Programmaster.org  

Science Conference Proceedings (OSTI)

Aug 3, 2010 ... For instances, Mg/MmM5 multi-layer film can reversibly absorb about 5 mass% hydrogen at 473 K. The Mg-Re(rare earth metals) based alloys...

328

Thermal storage material and process for making  

SciTech Connect

A thermal storage structure and process for making the same comprises a base material of a substantially open cell structure, with the pores interconnected and open to the surface. The open cell structure may be a volcanic rock or alternatively may be a synthetically made structure such as foamed glass, foamed concrete or foamed metal. The open cell material is completely saturated with a latent heat storage component such as a salthydrate or eutectic salts. In the process of making the latent heat storage structure, the latent heat storage component is melted in a container and the open cell structure is placed therein, whereupon the melt is spontaneously imbibed by the structure, replacing the air in the open cell structure with the liquid latent heat storage component. The structure, after cooling, is packaged or encapsulated with a vapor impermeable material. In a preferred embodiment of foamed glass material, the structure is sealed in an aluminum foil, and in an alternative embodiment, the foamed aluminum material is sealed with an aluminum foil.

Boardman, B.J.

1981-05-19T23:59:59.000Z

329

On-board hydrogen storage system using metal hydride  

DOE Green Energy (OSTI)

A hydrogen powered hybrid electric bus has been developed for demonstration in normal city bus service in the City of Augusta, Georgia, USA. The development team, called H2Fuel Bus Team, consists of representatives from government, industry and research institutions. The bus uses hydrogen to fuel an internal combustion engine which drives an electric generator. The generator charges a set of batteries which runs the electric bus. The hydrogen fuel and the hybrid concept combine to achieve the goal of near-zero emission and high fuel efficiency. The hydrogen fuel is stored in a solid form using an on-board metal hydride storage system. The system was designed for a hydrogen capacity of 25 kg. It uses the engine coolant for heat to generate a discharge pressure higher than 6 atm. The operation conditions are temperature from ambient to 70 degrees C, hydrogen discharge rate to 6 kg/hr, and refueling time 1.5 hours. Preliminary tests showed that the performance of the on-board storage system exceeded the design requirements. Long term tests have been planned to begin in 2 months. This paper discusses the design and performance of the on-board hydrogen storage system.

Heung, L.K.

1997-07-01T23:59:59.000Z

330

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY Accepted June 2008 HYDROGEN STORAGE FOR MIXED WIND-NUCLEAR POWER PLANTS IN  

E-Print Network (OSTI)

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY Accepted June 2008 1 HYDROGEN STORAGE FOR MIXED WIND evaluation of hydrogen production and storage for a mixed wind-nuclear power plant considering some new of a combined nuclear-wind-hydrogen system is discussed first, where the selling and buying of electricity

Cañizares, Claudio A.

331

DOE Announces Webinars on Hydrogen-Compatible Materials, the...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE Announces Webinars on Hydrogen-Compatible Materials, the Distributed Wind Power Market, and More DOE Announces Webinars on Hydrogen-Compatible Materials, the Distributed Wind...

332

Hydrogen Storage Systems Analysis Working Group Meeting Held in Conjunction with the  

E-Print Network (OSTI)

Hydrogen Storage Systems Analysis Working Group Meeting Held in Conjunction with the DOE Hydrogen REPORT Hydrogen Storage Systems Analysis Working Group Meeting June 11, 2008 Crystal Gateway Marriott of the Hydrogen Storage Systems Analysis Working Group (SSAWG). The objective of these meetings is to bring

333

Technical System Targets: Onboard Hydrogen Storage for Light-Duty Fuel Cell Vehicles  

E-Print Network (OSTI)

is to be determined. e Onboard efficiency is the energy efficiency for delivering hydrogen from the storage systemTechnical System Targets: Onboard Hydrogen Storage for Light-Duty Fuel Cell Vehicles a Storage to the powerplant divided by the total mass/volume of the complete storage system, including all stored hydrogen

334

Mechanism for high hydrogen storage capacity on metal-coated carbon nanotubes: A first principle analysis  

Science Conference Proceedings (OSTI)

The hydrogen adsorption and binding mechanism on metals (Ca, Sc, Ti and V) decorated single walled carbon nanotubes (SWCNTs) are investigated using first principle calculations. Our results show that those metals coated on SWCNTs can uptake over 8 wt% hydrogen molecules with binding energy range -0.2--0.6 eV, promising potential high density hydrogen storage material. The binding mechanism is originated from the electrostatic Coulomb attraction, which is induced by the electric field due to the charge transfer from metal 4s to 3d. Moreover, we found that the interaction between the H{sub 2}-H{sub 2} further lowers the binding energy. - Graphical abstract: Five hydrogen molecules bound to individual Ca decorated (8, 0) SWCNT : a potential hydrogen-storage material. Highlights: Black-Right-Pointing-Pointer Each transition metal atom can adsorb more than four hydrogen molecules. Black-Right-Pointing-Pointer The interation between metal and hydrogen molecule is electrostatic coulomb attraction. Black-Right-Pointing-Pointer The electric field is induced by the charge transfer from metal 4s to metal 3d. Black-Right-Pointing-Pointer The adsorbed hydrogen molecules which form supermolecule can further lower the binding energy.

Lu, Jinlian; Xiao, Hong [Department of Physics and Institute for nanophysics and Rare-earth Luminescence, Xiangtan University, Xiangtan, Hunan Province 411105 (China)] [Department of Physics and Institute for nanophysics and Rare-earth Luminescence, Xiangtan University, Xiangtan, Hunan Province 411105 (China); Cao, Juexian, E-mail: jxcao@xtu.edu.cn [Department of Physics and Institute for nanophysics and Rare-earth Luminescence, Xiangtan University, Xiangtan, Hunan Province 411105 (China)] [Department of Physics and Institute for nanophysics and Rare-earth Luminescence, Xiangtan University, Xiangtan, Hunan Province 411105 (China)

2012-12-15T23:59:59.000Z

335

Thermal Storage Materials Laboratory (Fact Sheet)  

DOE Green Energy (OSTI)

This fact sheet describes the purpose, lab specifications, applications scenarios, and information on how to partner with NREL's Thermal Storage Materials Laboratory at the Energy Systems Integration Facility. The Thermal Storage Materials Laboratory at NREL's Energy Systems Integration Facility (ESIF) investigates materials that can be used as high-temperature heat transfer fluids or thermal energy storage media in concentrating solar power (CSP) plants. Research objectives include the discovery and evaluation of candidate fluids and phase-change materials (PCM) to serve as thermal energy storage media in the temperature range of 300 C to 800 C. Knowledge of thermophysical properties such as melting point, heat of fusion, density, viscosity, thermal stability are essential for understanding how candidate materials could be deployed in CSP plants. The laboratory runs high-temperature instruments for the analysis of thermophysical properties. Small samples of candidate materials are prepared and characterized using differential scanning calorimetry, thermogravimetric analysis, and other specialized analytical methods. Instrumentation capabilities are being expanded to allow for analysis of samples up to 1,200 C. Higher temperature operation is one method to increase the efficiency and lower the cost of CSP systems.

Not Available

2011-10-01T23:59:59.000Z

336

Chemical/hydrogen energy storage systems. Annual report, January 1, 1979-December 31, 1979  

SciTech Connect

The progress made in 1979 in the Chemical/Hydrogen Energy Storage Systems Program is described. The program is managed by Brookhaven National Laboratory for the Division of Energy Storage Systems of the Department of Energy. The program consists of research and development activities in the areas of Hydrogen Production, Storage and Materials, End-Use Applications/Systems Studies, and in Chemical Heat Pumps. The report outlines the progress made by key industrial contractors such as General Electric in the development of SPE water electrolyzers; INCO in the studies of surface poisoning (and reactivation) of metal hydrides; and Air Products and Chemicals in the evaluation of hydrogen production at small hydropower sites. The BNL in-house supporting research, as well as that at universities and other national laboratories for which BNL has technical oversight, is also described.

1980-05-01T23:59:59.000Z

337

Gas storage in porous materials - searching for exceptional ...  

Science Conference Proceedings (OSTI)

... are of increasing importance in many areas of science, with emerging applications that include the storage of hydrogen and methane as energy ...

338

Dynamic Modeling and Simulation Based Analysis of an Ammonia Borane (AB) Reactor System for Hydrogen Storage  

DOE Green Energy (OSTI)

Research on ammonia borane (AB, NH3BH3) has shown it to be a promising material for chemical hydrogen storage in PEM fuel cell applications. AB was selected by DOEs Hydrogen Storage Engineering Center of Excellence (HSECoE) as the initial chemical hydride of study because of its high hydrogen storage capacity (up to 19.6% by weight for the release of three molar equivalents of hydrogen gas) and its stability under typical ambient conditions. A model of a bead reactor system which includes feed and product tanks, hot and cold augers, a ballast tank/reactor, a H2 burner and a radiator was developed to study AB system performance in an automotive application and estimate the energy, mass, and volume requirements for this off-board regenerable hydrogen storage material. Preliminary system simulation results for a start-up case and for a transient drive cycle indicate appropriate trends in the reactor system dynamics. A new controller was developed and validated in simulation for a couple of H2 demand cases.

Devarakonda, Maruthi N.; Holladay, Jamelyn D.; Brooks, Kriston P.; Rassat, Scot D.; Herling, Darrell R.

2010-10-02T23:59:59.000Z

339

Hydrogen--halogen energy storage system. Annual report, January--December 1977  

DOE Green Energy (OSTI)

Work at Brookhaven National Laboratory on the electrochemically regenerative hydrogen--chlorine energy storage system has included electrochemical investigations, materials studies, and technoeconomic assessment. Electrochemical studies have confirmed the reversibility of the cell reactions and the possibility of using the same cell in the electrolysis and fuel cell mode. The hydrogen--chlorine cell differs from most batteries in that the open circuit potential varies appreciably with temperature and depth of discharge. The temperature variation of the open circuit potential reflects the large negative entropy of formation of HCl. A detailed heat and mass balance analysis has been carried out for the H/sub 2//Cl/sub 2/ system for one method of reactant storage and two schemes of heat exchange between the hydrochloric acid storage subsystem and the reactant storage subsystems. Characterization of Nafion membranes in H/sub 2//Cl/sub 2/ cells is reported. From a cost comparison on a 20 MW/200 MWh electrochemically regenerative hydrogen--halogen system it was concluded that the use of either clorine or bromine or alternative methods of chlorine storage had an insignificant effect on the overall cost of the system. The most cost effective method of hydrogen storage is very dependent on the cost of activated metal hydrides.

McBreen, J.; Srinivasan, S.; Salzano, F.J.; Beaufrere, A.H.

1978-09-01T23:59:59.000Z

340

Microwave impregnation of porous materials with thermal energy storage materials  

DOE Patents (OSTI)

A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent tc the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

Benson, D.K.; Burrows, R.W.

1991-03-13T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Microwave impregnation of porous materials with thermal energy storage materials  

DOE Patents (OSTI)

A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent to the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

Benson, D.K.; Burrows, R.W.

1993-04-13T23:59:59.000Z

342

Microwave impregnation of porous materials with thermal energy storage materials  

DOE Patents (OSTI)

A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent to the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

Benson, D.K.; Burrows, R.W.

1992-12-31T23:59:59.000Z

343

Microwave impregnation of porous materials with thermal energy storage materials  

DOE Patents (OSTI)

A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent to the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

Benson, David K. (Golden, CO); Burrows, Richard W. (Conifer, CO)

1993-01-01T23:59:59.000Z

344

Research and Development Strategies for Compressed & Cryo-Hydrogen Storage Systems - Workshop Summary Report  

NLE Websites -- All DOE Office Websites (Extended Search)

and Development and Development Strategies for Compressed & Cryo-Hydrogen Storage Systems Workshop Summary Report Prepared by: Fuel Cell Technologies Program Compressed & Cryo-Hydrogen Storage Systems Workshops February 14-15, 2011 Crystal City, Virginia Compressed and Cryo-Hydrogen Storage Systems Workshop Summary Report 2 Research and Development Strategies for Compressed & Cryo- Hydrogen Storage Systems Summary: On February 14-15, 2011, the Systems Integration group of the National Renewable Energy Laboratory, in conjunction with the Hydrogen Storage team of the EERE Fuel Cell Technologies Program, hosted two days of workshops on compressed and cryo- hydrogen storage systems in Crystal City, VA. The overarching objective was to

345

Carbide-Derived Carbons with Tunable Porosity Optimized for Hydrogen Storage  

Science Conference Proceedings (OSTI)

On-board hydrogen storage is a key requirement for fuel cell-powered cars and trucks. Porous carbon-based materials can in principle adsorb more hydrogen per unit weight at room temperature than liquid hydrogen at -176 oC. Achieving this goal requires interconnected pores with very high internal surface area, and binding energies between hydrogen and carbon significantly enhanced relative to H2 on graphite. In this project a systematic study of carbide-derived carbons, a novel form of porous carbon, was carried out to discover a high-performance hydrogen sorption material to meet the goal. In the event we were unable to improve on the state of the art in terms of stored hydrogen per unit weight, having encountered the same fundamental limit of all porous carbons: the very weak interaction between H2 and the carbon surface. On the other hand we did discover several strategies to improve storage capacity on a volume basis, which should be applicable to other forms of porous carbon. Further discoveries with potentially broader impacts include Proof that storage performance is not directly related to pore surface area, as had been previously claimed. Small pores (supercapacitors with record high specific capacitance, and perm-selective membranes which bind cytokines for control of infections and possibly hemodialysis filters.

Fisher, John E.; Gogotsi, Yury; Yildirim, Taner

2010-01-07T23:59:59.000Z

346

Automotive storage of hydrogen using modified magnesium hydrides. Final report, March 1976-March 1978  

DOE Green Energy (OSTI)

Metal hydrides can store more hydrogen per unit volume than normal high pressure or cryogenic techniques. Little energy is required to store the hydrogen in the hydride, and high stability at room temperature ensures low losses over long storage periods. Safety features of metal hydride storage are favorable. Because of its low weight and high hydrogen storage densities, modified magnesium hydride offers the greatest potential for automotive storage of hydrogen. Experimental and analytical work in this program has been directed toward the optimization of this storage system. Due to the relative stability of MgH/sub 2/, modifications of the MgMH/sub x/ (M = metal ion) have been made to decrease the dissociation temperature while retaining high hydrogen capacity. This parameter is crucial since vehicle exhaust will supply the thermal energy to dissociate the hydride in an automobile. System studies indicate that hydride dissociation temperature (T/sub D/) should be 200/sup 0/C to ensure uninterrupted fuel flow at all driving and idle conditions. From experimental data developed in this four task study, we conclude that alloys comprised of Mg, Cu and Ni have come closest to meeting the dissociation temperature goal. Small additions of rare-earth elements to the basic alloy also contribute to a reduction of T/sub D/. The best alloy developed in this program exhibits a T/sub D/ = 223/sup 0/C and a hydrogen capacity near four weight percent compared to a theoretical 7.65 percent for MgH/sub 2/. That alloy has been characterized for dissociation temperature, hydrogen capacity, kinetics, and P-C-T relationships. Dissociation temperature, hydrogen capacity and material cost are reported for each alloy tested in this program.

Rohy, D. A.; Nachman, J. F.; Hammer, A. N.; Duffy, T. E.

1979-01-01T23:59:59.000Z

347

Ammonia as an Alternative Energy Storage Medium for Hydrogen Fuel Cells: Scientific and Technical Review for Near-Term Stationary Power Demonstration Projects, Final Report  

E-Print Network (OSTI)

Alternative Energy Storage Medium for Hydrogen Fuel Cells:Alternative Energy Storage Medium for Hydrogen Fuel Cells:based energy storage system to produce hydrogen for a fuel

Lipman, Tim; Shah, Nihar

2007-01-01T23:59:59.000Z

348

Hydrogen Absorption in Fluids: An Unexplored Solution for Onboard Hydrogen Storage  

DOE Green Energy (OSTI)

Adoption of hydrogen (H{sub 2}) vehicles has been advocated for decades as an ecological ideal, capable of eliminating petroleum consumption as well as tail-pipe air pollution and carbon dioxide (CO{sub 2}) from automobiles. Storing sufficient hydrogen fuel onboard still remains a great technological challenge, despite recent advances in lightweight automotive materials, hybrid-electric drivetrains and fuel cells enabling 60-100 mpg equivalent H{sub 2}-fueled automobiles. Future onboard hydrogen storage choices will be pivotal, with lasting strategic consequences for the eventual scale, shape, security, investment requirements, and energy intensity of the H{sub 2} refueling infrastructure, in addition to impacts on automotive design, cost, range, performance, and safety. Multiple hydrogen storage approaches have been examined and deployed onboard prototype automobiles since the 1970's. These include storing H{sub 2} as a cryogenic liquid (LH{sub 2}) at temperatures of 20-25 Kelvin, compressing room temperature H{sub 2} gas to pressures as high as 10,000 psi, and reversible chemical absorption storage within powdered metal hydrides (e.g. LaNi{sub 5}H{sub 6}, TiFeH{sub 2}, MgH{sub 2}, NaAlH{sub 4}) which evolve H{sub 2} when warmed. Each of these approaches face well-known fundamental physical limits (thermal endurance, volume, and weight, respectively). This report details preliminary experiments investigating the potential of a new approach to H{sub 2} storage: absorption in fluids, specifically liquid nitrogen (LN{sub 2}). N{sub 2} was chosen for this study because it offers unique advantages as an inert but lightweight solvent with high hydrogen solubility and is an abundant atmospheric component. H{sub 2} absorbed in liquid nitrogen (LN{sub 2}) can be lighter than metal hydrides, with greater thermal endurance than cryogenic H{sub 2} or LH{sub 2}, while being more compact than ambient compressed H{sub 2}. Previous researchers have examined H{sub 2} mixed with a variety of simple molecular fluids (N{sub 2}, Ar, CH{sub 4}, CO). These studies were mainly aimed at the general problem of fluid phase equilibria of H{sub 2} mixtures, and focused on identification and prediction of fluid/liquid phase boundary pressures and temperatures. In contrast, the present experiments are aimed at measuring the PVT properties of H{sub 2}/N{sub 2} mixtures with a view toward evaluating the applicability of these mixtures for onboard automotive H{sub 2} storage. To our knowledge, the experiments conducted for this project are the first systematic density measurements of H{sub 2}/N{sub 2} mixtures at cryogenic temperatures. H{sub 2}/N{sub 2} mixtures containing 50, 60, and 70% mole fraction H{sub 2} were examined at temperatures of 77 K, 87 K, and 273 K, under pressures ranging from 500 to 30,000 psi (from 34 to 2000 atm), corresponding to molar densities of 15-30 moles per liter.

Berry, G D

2005-02-10T23:59:59.000Z

349

Electrochemical hydrogen storage in LaNi{sub 4.25}Al{sub 0.75} alloys: A comparative study between film and powder materials  

Science Conference Proceedings (OSTI)

A comparison is made of the electrochemical and structural properties of LaNi{sub 4.25}Al{sub 0.75} alloys in thin film and powder forms. X-ray diffraction (XRD) revealed that both the LaNi{sub 4.25}Al{sub 0.75} thin film and powder materials are crystalline. Atomic force microscopy (AFM) and focused ion beam microscopy (FIB) proved that the film appeared to have a hill-like surface morphology, but was rather dense with a thickness of about 4.2 {mu}m. Simulated battery tests indicate that both exhibit similar electrochemical behavior, possibly due to their crystal structure, as it requires a primary activation to reach its fully active state. However it took a longer activation period for the film to be activated; an apparent initial decrease of charging voltage with cycle number was observed, as were abnormal discharge processes during activation. After 30 charge/discharge cycles, small needle-shaped aluminium oxide particles were formed on both the powder and film surfaces.

Wang, Z.M. [Center of Material Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi, 541004 (China)], E-mail: zmwang@guet.edu.cn; Li, Chi Ying Vanessa [School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052 (Australia); Zhou Huaiying [Center of Material Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi, 541004 (China); Liu Shi [Institute of Metal Research, Chinese Academy of Sciences (China); Chan, S.L.I. [School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052 (Australia)

2008-04-15T23:59:59.000Z

350

Hydrogen Isotope Permeation In Elastomeric Materials  

SciTech Connect

The permeabilities of elastomeric and polymeric materials to hydrogen isotopes were measured at room temperature. The technique for measuring permeation rates is based on the following constant-volume method: a fixed pressure of gas is applied to one side of the specimen to be studied and the permeability constant is determined from the observed rate of pressure increase in an initially evacuated volume on the other side of the specimen. Permeability constants for hydrogen, deuterium, and tritium were measured for Mylar, Teflon, Kapton, Saran, Buna-N, and latex rubber. Results were compared with literature values for hydrogen and deuterium where available and showed excellent agreement.

Steinmeyer, R. H.; Braun, J. D.

1976-03-01T23:59:59.000Z

351

Fuel Cell Technologies Office: DOE Theory Focus Session on Hydrogen...  

NLE Websites -- All DOE Office Websites (Extended Search)

Theory Focus Session on Hydrogen Storage Materials to someone by E-mail Share Fuel Cell Technologies Office: DOE Theory Focus Session on Hydrogen Storage Materials on Facebook...

352

Macroencapsulation of Phase Change Materials for Thermal Energy Storage.  

E-Print Network (OSTI)

??The use of a latent heat storage system using phase change materials (PCMs) is an effective way of storing thermal energy. Latent heat storage enables (more)

Pendyala, Swetha

2012-01-01T23:59:59.000Z

353

Life-Cycle Cost Analysis Highlights Hydrogen's Potential for Electrical Energy Storage (Fact Sheet)  

DOE Green Energy (OSTI)

This fact sheet describes NREL's accomplishments in analyzing life-cycle costs for hydrogen storage in comparison with other energy storage technologies. Work was performed by the Hydrogen Technologies and Systems Center.

Not Available

2010-11-01T23:59:59.000Z

354

Go No-Go Recommendation for Sodium Borohydride for On-Board Vehicular Hydrogen Storage  

Fuel Cell Technologies Publication and Product Library (EERE)

Independent review panel recommendation for go/no go decision on use of hydrolysis of sodium borohydride for hydrogen storage.

355

Hydrogen storage material and related processes  

SciTech Connect

Disclosed herein is a composition comprising a complex hydride and a borohydride catalyst wherein the borohydride catalyst comprises a BH.sub.4 group, and a group IV metal, a group V metal, or a combination of a group IV and a group V metal. Also disclosed herein are methods of making the composition.

Soloveichik, Grigorii Lev (Latham, NY); Andrus, Matthew John (Cape Canaveral, FL)

2012-06-05T23:59:59.000Z

356

Reversible Hydrogen Storage Materials - Structure, Chemistry...  

NLE Websites -- All DOE Office Websites (Extended Search)

and appears to be almost uniformly dispersed. Point spectra confirm a roughly stoichiometric ratio of Ni and Mg (0.05:1) in regions where no distinct Ni particles are...

357

USING POLYMERIC HYDROGEN GETTERS TO PREVENT COMBUSTIBLE ATMOSPHERES DURING INTERIM SAFE STORAGE OF PLUTONIUM OXIDE  

DOE Green Energy (OSTI)

Nuclear Materials Management (NMM) of WSRC has recently installed the capability to perform both non-destructive and destructive examination of 3013 containers of Pu oxide in accordance with DOE-STD-3013. The containers will be opened and the oxide will be sampled for analysis. The remaining bulk oxide must then be safely stored in a non-3013-compliant configuration. Available processing equipment and controls cannot prevent the oxide from adsorbing moisture during this process. Subsequent radiolysis of moisture during storage may generate combustible quantities of gases while waiting final processing, and satisfying DOE Interim Safe Storage Criteria (ISSC) would require that storage containers be vented at impractical frequencies. With support from an independent National Laboratory, WSRC/NMM has demonstrated that a commercial hydrogen getter material will effectively prevent the accumulation of combustible gas concentrations. A project overview, including storage requirements and strategies, as well as getter technology, current test results, and anticipated future developments will be addressed.

Woodsmall, T

2007-05-24T23:59:59.000Z

358

Mathematical Modelling of a Metal Hydride Hydrogen Storage System Brendan David MacDonald  

E-Print Network (OSTI)

Member Abstract In order for metal hydride hydrogen storage systems to compete with existing energyMathematical Modelling of a Metal Hydride Hydrogen Storage System by Brendan David MacDonald B Hydrogen Storage System by Brendan David MacDonald B.A.Sc., University of Waterloo, 2004 Supervisory

Victoria, University of

359

Hydrogen Composite Tank Program Principal Investigator: Dr. Neel Sirosh, Director of Fuel Storage  

E-Print Network (OSTI)

Hydrogen Composite Tank Program Principal Investigator: Dr. Neel Sirosh, Director of Fuel Storage-effective and efficient high-pressure hydrogen storage systems. World's premier automotive OEMs developing fuel cell vehicles have demonstrated significant interest in compressed hydrogen storage systems developed

360

Basic Energy SciencesBasic Energy Sciences DOE/EERE Hydrogen Storage  

E-Print Network (OSTI)

Basic Energy SciencesBasic Energy Sciences DOE/EERE Hydrogen Storage Pre-Solicitation Meeting, June Energy SciencesBasic Energy Sciences Workshop on Hydrogen Production, Storage, and Use Energy SciencesBasic Energy Sciences Workshop on Hydrogen Production, Storage, and Use

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Composite materials for thermal energy storage  

DOE Patents (OSTI)

The present invention discloses composite material for thermal energy storage based upon polyhydric alcohols, such as pentaerythritol, trimethylol ethane (also known as pentaglycerine), neopentyl glycol and related compounds including trimethylol propane, monoaminopentaerythritol, diamino-pentaerythritol and tris(hydroxymethyl)acetic acid, separately or in combinations, which provide reversible heat storage through crystalline phase transformations. These phase change materials do not become liquid during use and are in contact with at least one material selected from the group consisting of metals, carbon siliceous, plastic, cellulosic, natural fiber, artificial fiber, concrete, gypsum, porous rock, and mixtures thereof. Particulate additions, such as aluminum or graphite powders, as well as metal and carbon fibers can also be incorporated therein. Particulate and/or fibrous additions can be introduced into molten phase change materials which can then be cast into various shapes. After the phase change materials have solidified, the additions will remain dispersed throughout the matrix of the cast solid. The polyol is in contact with at least one material selected from the group consisting of metals, carbon siliceous, plastic, cellulosic, natural fiber, artificial fiber, concrete, gypsum, and mixtures thereof.

Benson, David K. (Golden, CO); Burrows, Richard W. (Conifer, CO); Shinton, Yvonne D. (Northglenn, CO)

1986-01-01T23:59:59.000Z

362

Hydrogen Storage Options: Technologies and Comparisons for Light-Duty Vehicle Applications  

E-Print Network (OSTI)

B. , and Ovshinsky, S.R. , A Hydrogen ICE Vehicle Powered byM. , and Stetson, N. , Solid Hydrogen Storage Systems forpaper from Texaco Ovonic Hydrogen Systems, Rochester Hills,

Burke, Andrew; Gardnier, Monterey

2005-01-01T23:59:59.000Z

363

Lithium hydride and lithium amide for hydrogen storage J. Engbk, G. Nielsen, I. Chorkendorff  

E-Print Network (OSTI)

Lithium hydride and lithium amide for hydrogen storage J. Engbæk, G. Nielsen, I. Chorkendorff 1 interest. Lithium amid has a high hydrogen storage capability; 10.4wt.% hydrogen. In this study surface reactions of thin films of lithium with hydrogen and ammonia is studied under well controlled conditions

Mosegaard, Klaus

364

Low Cost, High Efficiency, High Pressure Hydrogen Storage  

DOE Green Energy (OSTI)

A technical and design evaluation was carried out to meet DOE hydrogen fuel targets for 2010. These targets consisted of a system gravimetric capacity of 2.0 kWh/kg, a system volumetric capacity of 1.5 kWh/L and a system cost of $4/kWh. In compressed hydrogen storage systems, the vast majority of the weight and volume is associated with the hydrogen storage tank. In order to meet gravimetric targets for compressed hydrogen tanks, 10,000 psi carbon resin composites were used to provide the high strength required as well as low weight. For the 10,000 psi tanks, carbon fiber is the largest portion of their cost. Quantum Technologies is a tier one hydrogen system supplier for automotive companies around the world. Over the course of the program Quantum focused on development of technology to allow the compressed hydrogen storage tank to meet DOE goals. At the start of the program in 2004 Quantum was supplying systems with a specific energy of 1.1-1.6 kWh/kg, a volumetric capacity of 1.3 kWh/L and a cost of $73/kWh. Based on the inequities between DOE targets and Quantums then current capabilities, focus was placed first on cost reduction and second on weight reduction. Both of these were to be accomplished without reduction of the fuel systems performance or reliability. Three distinct areas were investigated; optimization of composite structures, development of smart tanks that could monitor health of tank thus allowing for lower design safety factor, and the development of Cool Fuel technology to allow higher density gas to be stored, thus allowing smaller/lower pressure tanks that would hold the required fuel supply. The second phase of the project deals with three additional distinct tasks focusing on composite structure optimization, liner optimization, and metal.

Mark Leavitt

2010-03-31T23:59:59.000Z

365

Lifecycle Cost Analysis of Hydrogen Versus Other Technologies for Electrical Energy Storage  

Science Conference Proceedings (OSTI)

This report presents the results of an analysis evaluating the economic viability of hydrogen for medium- to large-scale electrical energy storage applications compared with three other storage technologies: batteries, pumped hydro, and compressed air energy storage (CAES).

Steward, D.; Saur, G.; Penev, M.; Ramsden, T.

2009-11-01T23:59:59.000Z

366

Polymeric hydrogen diffusion barrier, high-pressure storage tank so equipped, method of fabricating a storage tank and method of preventing hydrogen diffusion  

DOE Patents (OSTI)

An electrochemically active hydrogen diffusion barrier which comprises an anode layer, a cathode layer, and an intermediate electrolyte layer, which is conductive to protons and substantially impermeable to hydrogen. A catalytic metal present in or adjacent to the anode layer catalyzes an electrochemical reaction that converts any hydrogen that diffuses through the electrolyte layer to protons and electrons. The protons and electrons are transported to the cathode layer and reacted to form hydrogen. The hydrogen diffusion barrier is applied to a polymeric substrate used in a storage tank to store hydrogen under high pressure. A storage tank equipped with the electrochemically active hydrogen diffusion barrier, a method of fabricating the storage tank, and a method of preventing hydrogen from diffusing out of a storage tank are also disclosed.

Lessing, Paul A. (Idaho Falls, ID)

2008-07-22T23:59:59.000Z

367

Hydrogen Storage Workshop Advanced Concepts Working Group  

E-Print Network (OSTI)

/ Current Status · Aerogels are the scaffold; template with organic functional groups; physisorption, acid benign ­ Inexpensive #12;Self-Assembled Nanocomposites ­ R&D Needs 1. Studying silica aerogels 2. Modifying aerogels 3. Theoretical Modeling - various chemical structures / materials 4. Functionalization

368

DOE Hydrogen and Fuel Cells Program: 2006 Annual Progress Report - Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Storage Storage Printable Version 2006 Annual Progress Report IV. Storage This section of the 2006 Progress Report for the DOE Hydrogen Program focuses on storage. Each technical report is available as an individual Adobe Acrobat PDF. Download Adobe Reader. Hydrogen Storage Sub-Program Overview, Sunita Satyapal, Storage Team Lead, DOE Hydrogen Program (PDF 298 KB) A. Metal Hydrides High Density Hydrogen Storage System Demonstration Using NaAlH4 Based Complex Compound Hydrides, Dan Mosher, United Technologies Research Center (PDF 763 KB) Discovery of Novel Complex Metal Hydrides for Hydrogen Storage through Molecular Modeling and Combinatorial Methods, David Lesch, UOP LLC (PDF 780 KB) Complex Hydride Compounds with Enhanced Hydrogen Storage Capacity, Dan Mosher, United Technologies Research Center (PDF 678 KB)

369

Carbon-based Materials for Energy Storage  

E-Print Network (OSTI)

Flexible, lightweight energy-storage devices are of greatstrategy to fabricate flexible energy-storage devices.Flexible, lightweight energy-storage devices (batteries and

Rice, Lynn Margaret

2012-01-01T23:59:59.000Z

370

Nanostructured Materials for Energy Generation and Storage  

E-Print Network (OSTI)

for Electrochemical Energy Storage Nanostructured Electrodesof Electrode Design for Energy Storage and Generation .batteries and their energy storage efficiency. vii Contents

Khan, Javed Miller

2012-01-01T23:59:59.000Z

371

Corrosion resistant storage container for radioactive material  

DOE Patents (OSTI)

A corrosion resistant long-term storage container for isolating high-level radioactive waste material in a repository is claimed. The container is formed of a plurality of sealed corrosion resistant canisters of different relative sizes, with the smaller canisters housed within the larger canisters, and with spacer means disposed between juxtaposed pairs of canisters to maintain a predetermined spacing between each of the canisters. The combination of the plural surfaces of the canisters and the associated spacer means is effective to make the container capable of resisting corrosion, and thereby of preventing waste material from leaking from the innermost canister into the ambient atmosphere.

Schweitzer, D.G.; Davis, M.S.

1984-08-30T23:59:59.000Z

372

Hydrogen Storage Needs for Early Motive Fuel Cell Markets  

DOE Green Energy (OSTI)

The National Renewable Energy Laboratory's (NREL) objective for this project is to identify performance needs for onboard energy storage of early motive fuel cell markets by working with end users, manufacturers, and experts. The performance needs analysis is combined with a hydrogen storage technology gap analysis to provide the U.S. Department of Energy (DOE) Fuel Cell Technologies Program with information about the needs and gaps that can be used to focus research and development activities that are capable of supporting market growth.

Kurtz, J.; Ainscough, C.; Simpson, L.; Caton, M.

2012-11-01T23:59:59.000Z

373

Composite materials for thermal energy storage  

DOE Patents (OSTI)

A composite material for thermal energy storage based upon polyhydric alcohols, such as pentaerythritol, trimethylol ethane (also known as pentaglycerine), neopentyl glycol and related compounds including trimethylol propane, monoaminopentaerythritol, diamino-pentaerythritol and tris(hydroxymethyl)acetic acid, separately or in combinations, which provide reversible heat storage through crystalline phase transformations. These PCM's do not become liquid during use and are in contact with at least one material selected from the group consisting of metals, carbon, siliceous, plastic, cellulosic, natural fiber, artificial fiber, concrete, gypsum, porous rock, and mixtures thereof. Particulate additions such as aluminum or graphite powders, as well as metal and carbon fibers can also be incorporated therein. Particulate and/or fibrous additions can be introduced into molten phase change materials which can then be cast into various shapes. After the phase change materials have solidified, the additions will remain dispersed throughout the matrix of the cast solid. The polyol is in contact with at least one material selected from the group consisting of metals, carbon, siliceous, plastic, cellulosic, natural fiber, artificial fiber, concrete, gypsum, and mixtures thereof.

Benson, D.K.; Burrows, R.W.; Shinton, Y.D.

1985-01-04T23:59:59.000Z

374

Boron-nitrogen-hydrogen (BNH) compounds: recent developments in hydrogen storage, applications in hydrogenation and catalysis, and new syntheses  

Science Conference Proceedings (OSTI)

The strong efforts devoted to the exploration of BNH compounds for hydrogen storage have led to impressive advances in the field of boron chemistry. This review summarizes progress in this field from three aspects. It starts with the most recent developments in using BNH compounds for hydrogen storage, covering NH3BH3, B3H8 containing compounds, and CBN compounds. The following section then highlights interesting applications of BNH compounds in hydrogenation and catalysis. The last part is focused on breakthroughs in the syntheses and discovery of new BNH organic analogues. The role of N?H?+H?-?B dihydrogen interactions in molecule packing, thermal hydrogen evolution, and syntheses is also discussed within the review. Part of this research is supported by the U.S. Department of Energys Basic Energy Sciences, Division of Chemical Sciences, Biosciences and Geosciences. Pacific Northwest National Laboratory is operated by Battelle.

Huang, Zhenguo; Autrey, Thomas

2012-11-15T23:59:59.000Z

375

Vehicular hydrogen storage using lightweight tanks (regenerative fuel cell systems)  

DOE Green Energy (OSTI)

Energy storage systems with extremely high specific energy (>400 Wh/kg) have been designed that use lightweight tankage to contain the gases generated by reversible (unitized) regenerative fuel cells (URFCs). Lawrence Livermore National Laboratory (LLNL) will leverage work for aerospace applications supported by other sponsors (including BMDO, NASA, and USAF) to develop URFC systems for transportation and utility applications. Lightweight tankage is important for primary fuel cell powered vehicles that use on-board storage of hydrogen. Lightweight pressure vessels with state-of-the-art performance factors were designed, and prototypes are being fabricated to meet the DOE 2000 goals (4000 Wh/kg, 12% hydrogen by weight, 700 Wh/liter, and $20/kWh in high volume production). These pressure vessels use technologies that are easily adopted by industrial partners. Advanced liners provide permeation barriers for gas storage and are mandrels for composite overwrap. URFCs are important to the efficient use of hydrogen as a transportation fuel and enabler of renewable energy. H{sub 2}/halogen URFCs may be advantageous for stationary applications whereas H{sub 2}/O{sub 2} or H{sub 2}/air URFCs are advantageous for vehicular applications. URFC research and development is required to improve performance (efficiency), reduce catalyst loading, understand engineering operation, and integrate systems. LLNL has the experimental equipment and advanced URFC membrane electrode assemblies (some with reduced catalyst loading) for evaluating commercial hardware (not funded by DOE in FY1999).

Mitlitsky, F; Myers, B; Weisberg, A H

1999-06-01T23:59:59.000Z

376

NREL Wind to Hydrogen Project: Renewable Hydrogen Production for Energy Storage & Transportation  

NLE Websites -- All DOE Office Websites (Extended Search)

Wind to Hydrogen Project: Wind to Hydrogen Project: Renewable Hydrogen Production for Energy Storage & Transportation NREL Hydrogen Technologies and Systems Center Todd Ramsden, Kevin Harrison, Darlene Steward November 16, 2009 NREL/PR-560-47432 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. NREL Wind2H2 RD&D Project * The National Renewable Energy Laboratory in partnership with Xcel Energy and DOE has designed, operates, and continues to perform testing on the wind-to-hydrogen (Wind2H2) project at the National Wind Technology Center in Boulder * The Wind2H2 project integrates wind turbines, PV arrays and electrolyzers to produce from renewable energy

377

ACCEPTABILITY ENVELOPE FOR METAL HYDRIDE-BASED HYDROGEN STORAGE SYSTEMS  

DOE Green Energy (OSTI)

The design and evaluation of media based hydrogen storage systems requires the use of detailed numerical models and experimental studies, with significant amount of time and monetary investment. Thus a scoping tool, referred to as the Acceptability Envelope, was developed to screen preliminary candidate media and storage vessel designs, identifying the range of chemical, physical and geometrical parameters for the coupled media and storage vessel system that allow it to meet performance targets. The model which underpins the analysis allows simplifying the storage system, thus resulting in one input-one output scheme, by grouping of selected quantities. Two cases have been analyzed and results are presented here. In the first application the DOE technical targets (Year 2010, Year 2015 and Ultimate) are used to determine the range of parameters required for the metal hydride media and storage vessel. In the second case the most promising metal hydrides available are compared, highlighting the potential of storage systems, utilizing them, to achieve 40% of the 2010 DOE technical target. Results show that systems based on Li-Mg media have the best potential to attain these performance targets.

Hardy, B.; Corgnale, C.; Tamburello, D.; Garrison, S.; Anton, D.

2011-07-18T23:59:59.000Z

378

Formation of Hydrogen Cottrell Atmosphere in Palladium: Theory ...  

Science Conference Proceedings (OSTI)

Symposium, Hydrogen Storage in Materials: Theory and Experiment. Presentation Title, Formation of Hydrogen Cottrell Atmosphere in Palladium: Theory and...

379

Hydrogen Storage Properties of Lithium Aluminohydride modified by dopants and mechanochemistry  

DOE Green Energy (OSTI)

Alkali metal aluminohydrides have high potential as solid hydrogen storage materials. They have been known for their irreversible dehydrogenation process below 100 atm until Bogdanovic et al [1, 2] succeeded in the re-hydrogenation of NaAlH{sub 4} below 70 atm. They achieved 4 wt.% H{sub 2} reversible capacity by doping NaAlH{sub 4} with Ti and/or Fe organo-metalic compounds as catalysts. This suggests that other alkali and, possibly alkaline earth metal aluminohydrides can be used for reversible hydrogen storage when modified by proper dopants. In this research, Zr{sub 27}Ti{sub 9}Ni{sub 38}V{sub 5}Mn{sub 16}Cr{sub 5}, LaNi{sub 4.85}Sn{sub 0.15}, Al{sub 3}Ti, and PdCl{sub 2} were combined with LiAlH{sub 4} by ball-milling to study whether or not LiAlH{sub 4} is capable to both absorb and desorb hydrogen near ambient conditions. X-ray powder diffraction, differential thermal analysis, and scanning electron microscopy were employed for sample characterizations. All four compounds worked as catalysts in the dehydrogenation reactions of both LiAlH{sub 4} and Li{sub 3}AlH{sub 6} by inducing the decomposition at lower temperature. However, none of them was applicable as catalyst in the reverse hydrogenation reaction at low to moderate hydrogen pressure.

Keita Hosokawa

2002-05-30T23:59:59.000Z

380

Hydrogen Storage Properties of Lithium Aluminohydride Modified by Dopants and Mechanochemistry  

DOE Green Energy (OSTI)

Alkali metal aluminohydrides have high potential as solid hydrogen storage materials. They have been known for their irreversible dehydrogenation process below 100 atm until Bogdanovic et al succeeded in the re-hydrogenation of NaAlH{sub 4} below 70 atm. They achieved 4 wt.% H{sub 2} reversible capacity by doping NaAlH{sub 4} with Ti and/or Fe organo-metallic compounds as catalysts. This suggests that other alkali and, possibly alkaline earth metal aluminohydrides can be used for reversible hydrogen storage when modified by proper dopants. In this research, Zr{sub 27}Ti{sub 9}Ni{sub 38}V{sub 5}Mn{sub 16}Cr{sub 5}, LaNi{sub 4.85}Sn{sub 0.15}, Al{sub 3}Ti, and PdCl{sub 2} were combined with LiAlH{sub 4} by ball-milling to study whether or not LiAlH{sub 4} is capable to both absorb and desorb hydrogen near ambient conditions. X-ray powder diffraction, differential thermal analysis, and scanning electron microscopy were employed for sample characterizations. All four compounds worked as catalysts in the dehydrogenation reactions of both LiAlH{sub 4} and Li{sub 3}AlH{sub 6} by inducing the decomposition at lower temperature. However, none of them was applicable as catalyst in the reverse hydrogenation reaction at low to moderate hydrogen pressure.

Ketia Hosokawa

2002-06-27T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
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381

Technical assessment of cryo-compressed hydrogen storage tank systems for automotive applications.  

Science Conference Proceedings (OSTI)

On-board and off-board performance and cost of cryo-compressed hydrogen storage are assessed and compared to the targets for automotive applications. The on-board performance of the system and high-volume manufacturing cost were determined for liquid hydrogen refueling with a single-flow nozzle and a pump that delivers liquid H{sub 2} to the insulated cryogenic tank capable of being pressurized to 272 atm. The off-board performance and cost of delivering liquid hydrogen were determined for two scenarios in which hydrogen is produced by central steam methane reforming (SMR) or by central electrolysis. The main conclusions are that the cryo-compressed storage system has the potential of meeting the ultimate target for system gravimetric capacity, mid-term target for system volumetric capacity, and the target for hydrogen loss during dormancy under certain conditions of minimum daily driving. However, the high-volume manufacturing cost and the fuel cost for the SMR hydrogen production scenario are, respectively, 2-4 and 1.6-2.4 times the current targets, and the well-to-tank efficiency is well short of the 60% target specified for off-board regenerable materials.

Ahluwalia, R.; Hua, T.; Peng, J.-K.; Lasher, S.; McKenney, K.; Sinha, J.; Gardiner, M.; Nuclear Engineering Division; TIAX LLC; U.S. DOE

2010-05-01T23:59:59.000Z

382

Complex Hydride Compounds with Enhanced Hydrogen Storage Capacity  

DOE Green Energy (OSTI)

The United Technologies Research Center (UTRC), in collaboration with major partners Albemarle Corporation (Albemarle) and the Savannah River National Laboratory (SRNL), conducted research to discover new hydride materials for the storage of hydrogen having on-board reversibility and a target gravimetric capacity of ? 7.5 weight percent (wt %). When integrated into a system with a reasonable efficiency of 60% (mass of hydride / total mass), this target material would produce a system gravimetric capacity of ? 4.5 wt %, consistent with the DOE 2007 target. The approach established for the project combined first principles modeling (FPM - UTRC) with multiple synthesis methods: Solid State Processing (SSP - UTRC), Solution Based Processing (SBP - Albemarle) and Molten State Processing (MSP - SRNL). In the search for novel compounds, each of these methods has advantages and disadvantages; by combining them, the potential for success was increased. During the project, UTRC refined its FPM framework which includes ground state (0 Kelvin) structural determinations, elevated temperature thermodynamic predictions and thermodynamic / phase diagram calculations. This modeling was used both to precede synthesis in a virtual search for new compounds and after initial synthesis to examine reaction details and options for modifications including co-reactant additions. The SSP synthesis method involved high energy ball milling which was simple, efficient for small batches and has proven effective for other storage material compositions. The SBP method produced very homogeneous chemical reactions, some of which cannot be performed via solid state routes, and would be the preferred approach for large scale production. The MSP technique is similar to the SSP method, but involves higher temperature and hydrogen pressure conditions to achieve greater species mobility. During the initial phases of the project, the focus was on higher order alanate complexes in the phase space between alkaline metal hydrides (AmH), Alkaline earth metal hydrides (AeH2), alane (AlH3), transition metal (Tm) hydrides (TmHz, where z=1-3) and molecular hydrogen (H2). The effort started first with variations of known alanates and subsequently extended the search to unknown compounds. In this stage, the FPM techniques were developed and validated on known alanate materials such as NaAlH4 and Na2LiAlH6. The coupled predictive methodologies were used to survey over 200 proposed phases in six quaternary spaces, formed from various combinations of Na, Li Mg and/or Ti with Al and H. A wide range of alanate compounds was examined using SSP having additions of Ti, Cr, Co, Ni and Fe. A number of compositions and reaction paths were identified having H weight fractions up to 5.6 wt %, but none meeting the 7.5 wt%H reversible goal. Similarly, MSP of alanates produced a number of interesting compounds and general conclusions regarding reaction behavior of mixtures during processing, but no alanate based candidates meeting the 7.5 wt% goal. A novel alanate, LiMg(AlH4)3, was synthesized using SBP that demonstrated a 7.0 wt% capacity with a desorption temperature of 150C. The deuteride form was synthesized and characterized by the Institute for Energy (IFE) in Norway to determine its crystalline structure for related FPM studies. However, the reaction exhibited exothermicity and therefore was not reversible under acceptable hydrogen gas pressures for on-board recharging. After the extensive studies of alanates, the material class of emphasis was shifted to borohydrides. Through SBP, several ligand-stabilized Mg(BH4)2 complexes were synthesized. The Mg(BH4)2*2NH3 complex was found to change behavior with slightly different synthesis conditions and/or aging. One of the two mechanisms was an amine-borane (NH3BH3) like dissociation reaction which released up to 16 wt %H and more conservatively 9 wt%H when not including H2 released from the NH3. From FPM, the stability of the Mg(BH4)2*2NH3 compound was found to increase with the inclusion of NH3 groups in the inner-Mg coordination

Mosher, Daniel A.; Opalka, Susanne M.; Tang, Xia; Laube, Bruce L.; Brown, Ronald J.; Vanderspurt, Thomas H.; Arsenault, Sarah; Wu, Robert; Strickler, Jamie; Anton, Donald L.; Zidan, Ragaiy; Berseth, Polly

2008-02-18T23:59:59.000Z

383

Hydrogen Storage Needs for Early Motive Fuel Cell Markets  

NLE Websites -- All DOE Office Websites (Extended Search)

Storage Needs for Storage Needs for Early Motive Fuel Cell Markets J. Kurtz, C. Ainscough, L. Simpson, and M. Caton Technical Report NREL/TP-5600-52783 November 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Hydrogen Storage Needs for Early Motive Fuel Cell Markets J. Kurtz, C. Ainscough, L. Simpson, and M. Caton Prepared under Task No. H272.4410 Technical Report NREL/TP-5600-52783 November 2012 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government.

384

Phase Diagram Studies on Thermal Energy Storage Materials - tris ...  

Science Conference Proceedings (OSTI)

These two thermal energy storage materials (organic crystalline materials) undergo a solid-solid phase transition before melting which will store the thermal ...

385

Hydrogen gettering packing material, and process for making same  

DOE Patents (OSTI)

A hydrogen gettering system for a sealed container is disclosed comprising packing material for use within the sealed container, and a coating film containing hydrogen gettering material on at least a portion of the surface of such packing material. The coating film containing the hydrogen gettering material comprises a mixture of one or more organic materials capable of reacting with hydrogen and one or more catalysts capable of catalyzing the reaction of hydrogen with such one or more organic materials. The mixture of one or more organic materials capable of reacting with hydrogen and the one or more catalysts is dispersed in a suitable carrier which preferably is a curable film-forming material. In a preferred embodiment, the packing material comprises a foam material which is compatible with the coating film containing hydrogen gettering material thereon.

LeMay, James D. (Castro Valley, CA); Thompson, Lisa M. (Knoxville, TN); Smith, Henry Michael (Overland Park, KS); Schicker, James R. (Lee' s Summit, MO)

2001-01-01T23:59:59.000Z

386

Hydrogen gettering packing material and process for making same  

DOE Patents (OSTI)

A hydrogen gettering system for a sealed container is disclosed comprising packing material for use within the sealed container, and a coating film containing hydrogen gettering material on at least a portion of the surface of such packing material. The coating film containing the hydrogen gettering material comprises a mixture of one or more organic materials capable of reacting with hydrogen and one or more catalysts capable of catalyzing the reaction of hydrogen with such one or more organic materials. The mixture of one or more organic materials capable of reacting with hydrogen and the one or more catalysts is dispersed in a suitable carrier which preferably is a curable film-forming material. In a preferred embodiment, the packing material comprises a foam material which is compatible with the coating film containing hydrogen gettering material thereon.

LeMay, James D.; Thompson, Lisa M.; Smith, Henry Michael; Schicker, James R.

1999-09-09T23:59:59.000Z

387

Energy Dense, Lighweight, Durable, Systems for Storage and Delivery of Hydrogen  

Science Conference Proceedings (OSTI)

The work presented in this report summarizes the current state-of-the-art in on-board storage on compressed gaseous hydrogen as well as the development of analysis tools, methods, and theoretical data for devising high performance design configurations for hydrogen storage. The state-of-the-art in the area of compressed hydrogen storage reveals that the current configuration of the hydrogen storage tank is a seamless cylindrical part with two end domes. The tank is composed of an aluminum liner overwrapped with carbon fibers. Such a configuration was proved to sustain internal pressures up to 350 bars (5,000 psi). Finite-element stress analyses were performed on filament-wound hydrogen storage cylindrical tanks under the effect of internal pressure of 700 bars (10,000 psi). Tank deformations, stress fields, and intensities induced at the tank wall were examined. The results indicated that the aluminum liner can not sustain such a high pressure and initiate the tank failure. Thus, hydrogen tanks ought to be built entirely out of composite materials based on carbon fibers or other innovative composite materials. A spherical hydrogen storage tank was suggested within the scope of this project. A stress reduction was achieved by this change of the tank geometry, which allows for increasing the amount of the stored hydrogen and storage energy density. The finite element modeling of both cylindrical and spherical tank design configurations indicate that the formation of stress concentration zones in the vicinity of the valve inlet as well as the presence of high shear stresses in this area. Therefore, it is highly recommended to tailor the tank wall design to be thicker in this region and tapered to the required thickness in the rest of the tank shell. Innovative layout configurations of multiple tanks for enhanced conformability in limited space have been proposed and theoretically modeled using 3D finite element analysis. Optimum tailoring of fiber orientations and lay-ups are needed to relieve the high stress in regions of high stress concentrations between intersecting tanks/ tank sections. Filament winding process is the most suitable way for producing both cylindrical and spherical hydrogen storage tanks with high industrial quality. However, due to the unavailability of such equipment at West Virginia University and limited funding, the composite structures within this work were produced by hand layup and bag molding techniques. More advanced manufacturing processes can significantly increase the structural strength of the tank and enhances its performance and also further increase weight saving capabilities. The concept of using a carbon composite liner seems to be promising in overcoming the low strength of the aluminum liner at internal high pressures. This could be further enhanced by using MetPreg filament winding to produce such a liner. Innovative designs for the polar boss of the storage tanks and the valve connections are still needed to reduce the high stress formed in these zones to allow for the tank to accommodate higher internal pressures. The Continuum Damage Mechanics (CDM) approach was applied for fault-tolerant design and efficient maintenance of lightweight automotive structures made of composite materials. Potential effects of damage initiation and accumulation are formulated for various design configurations, with emphasis on lightweight fiber-reinforced composites. The CDM model considers damage associated with plasticity and fatigue.

Jacky Pruez; Samir Shoukry; Gergis William; Thomas Evans; Hermann Alcazar

2008-12-31T23:59:59.000Z

388

Technical assessment of cryo-compressed hydrogen storage tank systems for automotive applications.  

DOE Green Energy (OSTI)

On-board and off-board performance and cost of cryo-compressed hydrogen storage has been assessed and compared to the DOE 2010, 2015 and ultimate targets for automotive applications. The Gen-3 prototype system of Lawrence Livermore National Laboratory was modeled to project the performance of a scaled-down 5.6-kg usable hydrogen storage system. The on-board performance of the system and high-volume manufacturing cost were determined for liquid hydrogen refueling with a single-flow nozzle and a pump that delivers 1.5 kg/min of liquid H{sub 2} to the insulated cryogenic tank capable of being pressurized to 272 atm (4000 psi). The off-board performance and cost of delivering liquid hydrogen were determined for two scenarios in which hydrogen is produced by central steam methane reforming (SMR) and by central electrolysis using electricity from renewable sources. The main conclusions from the assessment are that the cryo-compressed storage system has the potential of meeting the ultimate target for system gravimetric capacity and the 2015 target for system volumetric capacity (see Table I). The system compares favorably with targets for durability and operability although additional work is needed to understand failure modes for combined pressure and temperature cycling. The system may meet the targets for hydrogen loss during dormancy under certain conditions of minimum daily driving. The high-volume manufacturing cost is projected to be 2-4 times the current 2010 target of $4/kWh. For the reference conditions considered most applicable, the fuel cost for the SMR hydrogen production and liquid H{sub 2} delivery scenario is 60%-140% higher than the current target of $2-$3/gge while the well-to-tank efficiency is well short of the 60% target specified for off-board regenerable materials.

Ahluwalia, R. K.; Hua, T. Q.; Peng, J.-K.; Lasher, S.; McKenney, K.; Sinha, J.; Nuclear Engineering Division; TIAX LLC

2010-03-03T23:59:59.000Z

389

Laboratory E133 - Material Science and Hydrogen Research ...  

Science Conference Proceedings (OSTI)

... E137 | E138. Laboratory E133 - Material Science and Hydrogen Research Laboratory. Laboratory Contacts. Name: Kimberly ...

2013-09-05T23:59:59.000Z

390

Pu-bearing materials - from fundamental science to storage standards.  

Science Conference Proceedings (OSTI)

The behavior of plutonium (Pu) oxides in the presence of water/moisture in a confined space and the associated issues of hydrogen and oxygen generation due to radiolysis have important implications for the storage and transportation of Pu-bearing materials. This paper reviews the results of recent studies of gas generation in the Pu-O-H system, including the determination of release rates via engineering-scale measurement. The observations of the significant differences in gas generation behavior between 'pure' Pu-bearing materials and those that contain salt impurities are addressed. In conjunction with the discussion of these empirical observations, the work also addresses recent scientific advances in the investigations of the Pu-O-H system using state-of-the-art ab initio electronic structure calculations, as well as advanced synchrotron techniques to determine the electronic structure of the various Pu-containing phases. The role of oxidizing species such as the hydroxyl radical from the radiolysis of water is examined. Discussed also is the challenge in the predictive ab-initio calculations of the electronic structure of the Pu-H-O system, due to the nature of the 5f valence electrons in Pu. Coupled with the continuing material surveillance program, it is anticipated that this work may help determine the electronic structure of the various Pu-containing phases and the role of impurity salts on gas generation and the long-term stability of oxygen/hydrogen-containing plutonium oxides beyond PuO{sub 2}.

Tam, S. W.; Liu, Y.; Decision and Information Sciences; Michigan Technical Univ.

2008-01-01T23:59:59.000Z

391

DOE Hydrogen and Fuel Cells Program: 2005 Annual Progress Report - Storage  

NLE Websites -- All DOE Office Websites (Extended Search)

Storage Storage Printable Version 2005 Annual Progress Report VI. Storage This section of the 2005 Progress Report for the DOE Hydrogen Program focuses on storage. Each technical report is available as an individual Adobe Acrobat PDF. Download Adobe Reader. Hydrogen Storage Sub-program Overview, Sunita Satyapal, Department of Energy (PDF 244 KB) A. Metal Hydrides Catalytically Enhanced Hydrogen Storage Systems, Craig M. Jensen, University of Hawaii (PDF 441 KB) High Density Hydrogen Storage System Demonstration using NaAlH4 Based Complex Compound Hydrides, Donald L. Anton, United Technologies Research Center (PDF 633 KB) Discovery of Novel Complex Metal Hydrides for Hydrogen Storage through Molecular Modeling and Combinatorial Methods, David A. Lesch, UOP LLC (PDF 308 KB)

392

Electrolytic production of hydrogen. [from carbonaceous materials  

SciTech Connect

A cyclic electrolytic process is claimed for the manufacture of hydrogen from carbonaceous material such as coal, agricultural wastes and garbage to produce commercial hydrogen. An alakli metal sulfate is reduced to an alkali metal sulfide by reaction of the sulfate and carbonaceous fuel at an elevated temperature. The sulfide and impurities derived from the fuel are digested with an aqueous solution to dissolve the sulfide and separate out the impurities. The solution of the alkali sulfide is added to electrolytic cells in which an electric current is utilized to generate hydrogen at the cathode while oxidizing the sulfide substantially to sulfate at the anode. The cell electrolyte temperature is greater than 150/sup 0/C and less than 350/sup 0/C. Under these conditions the polarization problem encountered in hydrogen/oxygen cells is substantially avoided. The alkali sulfate is then separated from the electrolyte stream exiting from the electrolytic cells, reduced again by burning with fuel and recycled to the electrolytic cell.

Spitzer, R.

1978-03-28T23:59:59.000Z

393

Chemical Hydrogen Storage Using Polyhedral Borane Anions and Aluminum-Ammonia-Borane Complexes  

DOE Green Energy (OSTI)

Phase 1. Hydrolysis of borohydride compounds offer the potential for significant hydrogen storage capacity, but most work to date has focused on one particular anion, BH4-, which requires high pH for stability. Other borohydride compounds, in particular polyhedral borane anions offer comparable hydrogen storage capacity without requiring high pH media and their long term thermal and hydrolytic stability coupled with non-toxic nature make them a very attractive alternative to NaBH4. The University of Missouri project provided the overall program focal point for the investigation of catalytic hydrolysis of polyhedral borane anions for hydrogen release. Due to their inherent stability, a transition metal catalyst was necessary for the hydrolysis of polyhedral borane anions. Transition metal ions such as cobalt, nickel, palladium and rhodium were investigated for their catalytic activity in the hydrolysis of nido-KB11H14, closo-K2B10H10, and closo-K2B12H12. The rate of hydrolysis follows first-order kinetics with respect to the concentration of the polyhedral borane anion and surface area of the rhodium catalyst. The rate of hydrolysis depends upon a) choice of polyhedral borane anion, c) concentration of polyhedral borane anion, d) surface area of the rhodium catalyst and e) temperature of the reaction. In all cases the yield of hydrogen was 100% which corresponds to ~7 wt% of hydrogen (based on material wt%). Phase 2. The phase 2 of program at the University of Missouri was focused upon developing aluminum ammonia-boranes (Al-AB) as chemical hydrogen storage materials, specifically their synthesis and studies of their dehydrogenation. The ammonia borane molecule (AB) is a demonstrated source of chemically stored hydrogen (19.6 wt%) which meets DOE performance parameters except for its regeneration from spent AB and elemental hydrogen. The presence of an aluminum center bonded to multiple AB residues might combine the efficiency of AB dehydrogenation with an aluminum mediated hydrogenation process leading to reversibility. The Al-AB complexes have comparable hydrogen capacity with other M-AB and have potential to meet DOEs 2010 and 2015 targets for system wt%.

Hawthorne, M. Frederick; Jalisatgi, Satish S.; Safronov, Alexander V.; Lee, Han Beak; Wu, Jianguo

2010-10-01T23:59:59.000Z

394

Chemical Hydride Slurry for Hydrogen Production and Storage  

Science Conference Proceedings (OSTI)

The purpose of this project was to investigate and evaluate the attractiveness of using a magnesium chemical hydride slurry as a hydrogen storage, delivery, and production medium for automobiles. To fully evaluate the potential for magnesium hydride slurry to act as a carrier of hydrogen, potential slurry compositions, potential hydrogen release techniques, and the processes (and their costs) that will be used to recycle the byproducts back to a high hydrogen content slurry were evaluated. A 75% MgH2 slurry was demonstrated, which was just short of the 76% goal. This slurry is pumpable and storable for months at a time at room temperature and pressure conditions and it has the consistency of paint. Two techniques were demonstrated for reacting the slurry with water to release hydrogen. The first technique was a continuous mixing process that was tested for several hours at a time and demonstrated operation without external heat addition. Further work will be required to reduce this design to a reliable, robust system. The second technique was a semi-continuous process. It was demonstrated on a 2 kWh scale. This system operated continuously and reliably for hours at a time, including starts and stops. This process could be readily reduced to practice for commercial applications. The processes and costs associated with recycling the byproducts of the water/slurry reaction were also evaluated. This included recovering and recycling the oils of the slurry, reforming the magnesium hydroxide and magnesium oxide byproduct to magnesium metal, hydriding the magnesium metal with hydrogen to form magnesium hydride, and preparing the slurry. We found that the SOM process, under development by Boston University, offers the lowest cost alternative for producing and recycling the slurry. Using the H2A framework, a total cost of production, delivery, and distribution of $4.50/kg of hydrogen delivered or $4.50/gge was determined. Experiments performed at Boston University have demonstrated the technical viability of the process and have provided data for the cost analyses that have been performed. We also concluded that a carbothermic process could also produce magnesium at acceptable costs. The use of slurry as a medium to carry chemical hydrides has been shown during this project to offer significant advantages for storing, delivering, and distributing hydrogen: Magnesium hydride slurry is stable for months and pumpable. The oils of the slurry minimize the contact of oxygen and moisture in the air with the metal hydride in the slurry. Thus reactive chemicals, such as lithium hydride, can be handled safely in the air when encased in the oils of the slurry. Though magnesium hydride offers an additional safety feature of not reacting readily with water at room temperatures, it does react readily with water at temperatures above the boiling point of water. Thus when hydrogen is needed, the slurry and water are heated until the reaction begins, then the reaction energy provides heat for more slurry and water to be heated. The reaction system can be relatively small and light and the slurry can be stored in conventional liquid fuel tanks. When transported and stored, the conventional liquid fuel infrastructure can be used. The particular metal hydride of interest in this project, magnesium hydride, forms benign byproducts, magnesium hydroxide (Milk of Magnesia) and magnesium oxide. We have estimated that a magnesium hydride slurry system (including the mixer device and tanks) could meet the DOE 2010 energy density goals. ? During the investigation of hydriding techniques, we learned that magnesium hydride in a slurry can also be cycled in a rechargeable fashion. Thus, magnesium hydride slurry can act either as a chemical hydride storage medium or as a rechargeable hydride storage system. Hydrogen can be stored and delivered and then stored again thus significantly reducing the cost of storing and delivering hydrogen. Further evaluation and development of this concept will be performed as follow-on work under a

McClaine, Andrew W.

2008-09-30T23:59:59.000Z

395

Vehicular Storage of Hydrogen in Insulated Pressure Vessels  

DOE Green Energy (OSTI)

This paper describes the development of an alternative technology for storing hydrogen fuel onboard automobiles. Insulated pressure vessels are cryogenic-capable pressure vessels that can accept cryogenic liquid fuel, cryogenic compressed gas or compressed gas at ambient temperature. Insulated pressure vessels offer advantages over conventional H{sub 2} storage approaches. Insulated pressure vessels are more compact and require less carbon fiber than GH{sub 2} vessels. They have lower evaporative losses than LH{sub 2} tanks, and are much lighter than metal hydrides. After outlining the advantages of hydrogen fuel and insulated pressure vessels, the paper describes the experimental and analytical work conducted to verify that insulated pressure vessels can be used safely for vehicular H{sub 2} storage. The paper describes tests that have been conducted to evaluate the safety of insulated pressure vessels. Insulated pressure vessels have successfully completed a series of DOT, ISO and SAE certification tests. A draft procedure for insulated pressure vessel certification has been generated to assist in a future commercialization of this technology. An insulated pressure vessel has been installed in a hydrogen fueled truck and it is currently being subjected to extensive testing.

Aceves, S M; Berry, G D; Martinez-Frias, J; Espinosa-Loza, F

2005-01-03T23:59:59.000Z

396

Semiconductor Materials for Photoelectrolysis - DOE Hydrogen...  

NLE Websites -- All DOE Office Websites (Extended Search)

Hydrogen Production and Delivery Photoelectrochemical Turner - National Renewable Energy Laboratory hydrogen and oxygen spontaneously upon illumination, (ii) has a STH...

397

Hydrogen storage in metalorganic frameworksw Leslie J. Murray, Mircea Dinca and Jeffrey R. Long*  

E-Print Network (OSTI)

Hydrogen storage in metal­organic frameworksw Leslie J. Murray, Mircea Dinca and Jeffrey R. Long. In this critical review we provide an overview of the current status of hydrogen storage within such compounds. In particular, hydrogen is an attractive energy carrier because it is carbon-free, abundantly available from

398

Storage of Hydrogen, Methane, and Carbon Dioxide in Highly Porous Covalent Organic Frameworks for Clean Energy  

E-Print Network (OSTI)

Storage of Hydrogen, Methane, and Carbon Dioxide in Highly Porous Covalent Organic Frameworks projects aimed at using hydrogen as a clean fuel for automobiles and producing clean energy by designing achieve higher storage capacities for hydrogen, (1) (a) Leaf, D.; Verolmec, H. J. H.; Hunt, W. F., Jr. En

Yaghi, Omar M.

399

Hydrogen Trailer Storage Facility (Building 878). Consequence analysis  

DOE Green Energy (OSTI)

The Department of Energy Order 5500.3A requires facility-specific hazards assessments be prepared, maintained, and used for emergency planning purposes. This consequence analysis documents the impact that a hydrogen accident could have to employees, the general public, and nearby facilities. The computer model ARCHIE was utilized to determine discharge rates, toxic vapor dispersion analyses, flammable vapor cloud hazards, explosion hazards, and flame jets for the Hydrogen Trailer Storage Facility located at Building 878. To determine over pressurization effects, hand calculations derived from the Department of the Air Force Manual, ``Structures to Resist the Effects of Accidental Explosions,`` were utilized. The greatest distances at which a postulated facility event will produce the Lower Flammability and the Lower Detonation Levels are 1,721 feet and 882 feet, respectively. The greatest distance at which 10.0 psi overpressure (i.e., total building destruction) is reached is 153 feet.

Banda, Z.; Wood, C.L.

1994-12-01T23:59:59.000Z

400

Lightweight Metal Hydrides for Hydrogen Storage - DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

DOE Hydrogen and Fuel Cells Program FY 2012 Annual Progress Report Ji-Cheng Zhao (Primary Contact), Xuenian Chen, Sheldon G. Shore The Ohio State University, Department of Materials Science and Engineering, 286 Watts Hall, 2041 College Road Columbus, OH 43210 Phone: (614) 292-9462 Email: zhao.199@osu.edu DOE Managers HQ: Ned Stetson Phone: (202) 586-9995 Email: Ned.Stetson@ee.doe.gov GO: Katie Randolph Phone: (720) 356-1759 Email: Katie.Randolph@go.doe.gov Contract Number: DE-FC3605GO15062 Project Start Date: January 1, 2005 Project End Date: August 31, 2011 (No-cost extension to December 31, 2012) Fiscal Year (FY) 2012 Objectives Develop a high-capacity lightweight hydride for * reversible vehicular hydrogen storage, capable of meeting or exceeding the 2010 DOE FreedomCAR

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Hydrogen-Bromine Flow Battery: Hydrogen Bromine Flow Batteries for Grid Scale Energy Storage  

SciTech Connect

GRIDS Project: LBNL is designing a flow battery for grid storage that relies on a hydrogen-bromine chemistry which could be more efficient, last longer and cost less than todays lead-acid batteries. Flow batteries are fundamentally different from traditional lead-acid batteries because the chemical reactants that provide their energy are stored in external tanks instead of inside the battery. A flow battery can provide more energy because all that is required to increase its storage capacity is to increase the size of the external tanks. The hydrogen-bromine reactants used by LBNL in its flow battery are inexpensive, long lasting, and provide power quickly. The cost of the design could be well below $100 per kilowatt hour, which would rival conventional grid-scale battery technologies.

2010-10-01T23:59:59.000Z

402

High Pressure Hydrogen Materials Compatibility of Piezoelectric Films  

DOE Green Energy (OSTI)

Abstract: Hydrogen is being considered as a next-generation clean burning fuel. However, hydrogen has well known materials issues, including blistering and embrittlement in metals. Piezoelectric materials are used as actuators in hydrogen fuel technology. We present studies of materials compatibility of piezoelectric films in a high pressure hydrogen environment. Absorption of high pressure hydrogen was studied with Elastic Recoil Detection Analysis (ERDA) and Rutherford Back Scattering (RBS) in lead zirconate titanate (PZT) and barium titanate (BTO) thin films. Hydrogen surface degradation in the form of blistering and Pb mixing was also observed.

Alvine, Kyle J.; Shutthanandan, V.; Bennett, Wendy D.; Bonham, Charles C.; Skorski, Daniel C.; Pitman, Stan G.; Dahl, Michael E.; Henager, Charles H.

2010-12-02T23:59:59.000Z

403

Materials Solutions for Hydrogen Delivery in Pipelines  

NLE Websites -- All DOE Office Websites (Extended Search)

Solutions for Solutions for Hydrogen Delivery in Pipelines Dr. Subodh K. Das Secat, Inc. September 26, 2007 This presentation does not contain any proprietary, confidential, or otherwise restricted information Project Team SECAT (KY) Project Manager Oregon Steel Mills (OR) Steel Pipe Producer Columbia Gas of Kentucky (KY) NG transporter Schott North America (PA) Glass coatings supplier Chemical Composite Coatings (GA) Composites coatings Advanced Technology Corp. (TN) ABI technology provider ASME (NY) Codes and Standards DGS Metallurgical Solutions (OR) Steel consulting University of Illinois (IL) Basic embrittlement studies Oak Ridge National Laboratory (TN) Applied research Objective and Deliverables Objective: ∑ Develop materials technologies to minimize embrittlement of

404

Lifecycle Cost and GHG Implications of a Hydrogen Energy Storage Scenario (Presentation)  

Science Conference Proceedings (OSTI)

Overview of life cycle cost and green house gas implications of a hydrogen energy storage scenario presented at the National Hydrogen Association Conference & Expo, Long Beach, CA, May 3-6, 2010

Steward, D. M.

2010-05-01T23:59:59.000Z

405

Technical Assessment of Organic Liquid Carrier Hydrogen Storage Systems for Automotive Applications  

Fuel Cell Technologies Publication and Product Library (EERE)

In 2007-2009, the DOE Hydrogen Program conducted a technical assessment of organic liquid carrier based hydrogen storage systems for automotive applications, consistent with the Programs Multiyear Re

406

Analysis of Hydrogen and Competing Technologies for Utility-Scale Energy Storage (Presentation)  

SciTech Connect

Presentation about the National Renewable Energy Laboratory's analysis of hydrogen energy storage scenarios, including analysis framework, levelized cost comparison of hydrogen and competing technologies, analysis results, and conclusions drawn from the analysis.

Steward, D.

2010-02-11T23:59:59.000Z

407

Analysis of Hydrogen and Competing Technologies for Utility-Scale Energy Storage (Presentation)  

DOE Green Energy (OSTI)

Presentation about the National Renewable Energy Laboratory's analysis of hydrogen energy storage scenarios, including analysis framework, levelized cost comparison of hydrogen and competing technologies, analysis results, and conclusions drawn from the analysis.

Steward, D.

2010-02-11T23:59:59.000Z

408

J. Plasma Fusion Res. SERIES, Vol. 10 (2013) Hydrogen Storage Properties of Nanocrystalline Mg2Ni Based Alloys Prepared by Ball-Milling  

E-Print Network (OSTI)

Nanocrystalline hydrides are a new class of material in which outstanding hydrogen sorption may be obtained by proper engineering of the microstructure and surface. The nanocrystalline Mg2Ni alloy is a promising hydrogen storage material. In the present work, nanocrystalline Mg2Ni alloy powders with grain size of about 50 nm were prepared by high-energy ball-milling, and its phase, crystal structure and hydrogen storage properties were investigated by X-ray diffraction analysis, transmission electron microscopy and pressure-composition isotherms, respectively. The hydrogen storage characteristics of Mg2Ni are also presented. Nanocrystalline Mg2Ni can readily absorb hydrogen at temperature lower than 523 K. The reversible hydrogen capacity is up to 3.5 wt.%.

Yifu Xiong; Jingwen Ba; Wuwen Qing?wenyong Jing

2012-01-01T23:59:59.000Z

409

Lifecycle Cost Analysis of Hydrogen Versus Other Technologies for Electrical Energy Storage  

Fuel Cell Technologies Publication and Product Library (EERE)

This report presents the results of an analysis evaluating the economic viability of hydrogen for medium- to large-scale electrical energy storage applications compared with three other storage techno

410

Hydrogen Storage in Nano-Phase Diamond at High Temperature and Its Release  

DOE Green Energy (OSTI)

The objectives of this proposed research were: 91) Separation and storage of hydrogen on nanophase diamonds. It is expected that the produced hydrogen, which will be in a mixture, can be directed to a nanophase diamond system directly, which will not only store the hydrogen, but also separate it from the gas mixture, and (2) release of the stored hydrogen from the nanophase diamond.

Tushar K Ghosh

2008-10-13T23:59:59.000Z

411

High-Capacity Hydrogen-Based Green-Energy Storage Solutions for ...  

Science Conference Proceedings (OSTI)

Integrating intermittent renewable energy sources, by safe and cost-effective energy storage systems based on solid state hydrogen is today achievable thanks...

412

Go No-Go Decision: Pure, Undoped, Single Walled Carbon Nanotubes for Vehicular Hydrogen Storage  

Fuel Cell Technologies Publication and Product Library (EERE)

This document provides information about the go/no-go decision on pure, undoped single walled carbon nanotubes for vehicular hydrogen storage.

413

DOE Hydrogen and Fuel Cells Program Record 9017: On-Board Hydrogen Storage Systems … Projected Performance and Cost Parameters  

NLE Websites -- All DOE Office Websites (Extended Search)

DOE Hydrogen and Fuel Cells Program Record DOE Hydrogen and Fuel Cells Program Record Record #: 9017 Date: July 02, 2010 Title: On-Board Hydrogen Storage Systems - Projected Performance and Cost Parameters Originators: Robert C. Bowman and Ned Stetson Approved by: Sunita Satyapal Date: August 10, 2010 This record summarizes the current technical assessments of hydrogen (H 2 ) storage system capacities and projected manufacturing costs for the scenario of high-volume production (i.e., 500,000 units/year) for various types of "on-board" vehicular storage systems. These analyses were performed within the Hydrogen Storage sub-program of the DOE Fuel Cell Technologies (FCT) program of the Office of Energy Efficiency and Renewable Energy. Item: It is important to note that all system capacities are "net useable capacities" able to be delivered to the

414

Materials Design and Discovery: Catalysis and Energy Storage...  

NLE Websites -- All DOE Office Websites (Extended Search)

for propylene epoxidation. Larry Curtiss Materials Design and Discovery: Catalysis and Energy Storage PI Name: Larry Curtiss PI Email: curtiss@anl.gov Institution: Argonne...

415

Virtual Screening of Materials for Gaseous Fuel Storage  

Science Conference Proceedings (OSTI)

Presentation Title, Virtual Screening of Materials for Gaseous Fuel Storage .... Numerical Study on Behavior of Top-Blown Supersonic Jets and Their Interaction ...

416

Phase Change Materials for Thermal Energy Storage in Concentrated Solar Thermal Power Plants  

E-Print Network (OSTI)

PHASE CHANGE THERMAL ENERGY STORAGE FOR CONCENTRATING SOLARChange Materials for Thermal Energy Storage in ConcentratedChange Materials for Thermal Energy Storage in Concentrated

Hardin, Corey Lee

2011-01-01T23:59:59.000Z

417

OPTIMIZATION OF INTERNAL HEAT EXCHANGERS FOR HYDROGEN STORAGE TANKS UTILIZING METAL HYDRIDES  

DOE Green Energy (OSTI)

Two detailed, unit-cell models, a transverse fin design and a longitudinal fin design, of a combined hydride bed and heat exchanger are developed in COMSOL{reg_sign} Multiphysics incorporating and accounting for heat transfer and reaction kinetic limitations. MatLab{reg_sign} scripts for autonomous model generation are developed and incorporated into (1) a grid-based and (2) a systematic optimization routine based on the Nelder-Mead downhill simplex method to determine the geometrical parameters that lead to the optimal structure for each fin design that maximizes the hydrogen stored within the hydride. The optimal designs for both the transverse and longitudinal fin designs point toward closely-spaced, small cooling fluid tubes. Under the hydrogen feed conditions studied (50 bar), a 25 times improvement or better in the hydrogen storage kinetics will be required to simultaneously meet the Department of Energy technical targets for gravimetric capacity and fill time. These models and methodology can be rapidly applied to other hydrogen storage materials, such as other metal hydrides or to cryoadsorbents, in future work.

Garrison, S.; Tamburello, D.; Hardy, B.; Anton, D.; Gorbounov, M.; Cognale, C.; van Hassel, B.; Mosher, D.

2011-07-14T23:59:59.000Z

418

Discovery of Novel Complex Metal Hydrides for Hydrogen Storage through Molecular Modeling and Combinatorial Methods  

Science Conference Proceedings (OSTI)

UOP LLC, a Honeywell Company, Ford Motor Company, and Striatus, Inc., collaborated with Professor Craig Jensen of the University of Hawaii and Professor Vidvuds Ozolins of University of California, Los Angeles on a multi-year cost-shared program to discover novel complex metal hydrides for hydrogen storage. This innovative program combined sophisticated molecular modeling with high throughput combinatorial experiments to maximize the probability of identifying commercially relevant, economical hydrogen storage materials with broad application. A set of tools was developed to pursue the medium throughput (MT) and high throughput (HT) combinatorial exploratory investigation of novel complex metal hydrides for hydrogen storage. The assay programs consisted of monitoring hydrogen evolution as a function of temperature. This project also incorporated theoretical methods to help select candidate materials families for testing. The Virtual High Throughput Screening served as a virtual laboratory, calculating structures and their properties. First Principles calculations were applied to various systems to examine hydrogen storage reaction pathways and the associated thermodynamics. The experimental program began with the validation of the MT assay tool with NaAlH4/0.02 mole Ti, the state of the art hydrogen storage system given by decomposition of sodium alanate to sodium hydride, aluminum metal, and hydrogen. Once certified, a combinatorial 21-point study of the NaAlH4 ?? LiAlH4 ??Mg(AlH4)2 phase diagram was investigated with the MT assay. Stability proved to be a problem as many of the materials decomposed during synthesis, altering the expected assay results. This resulted in repeating the entire experiment with a mild milling approach, which only temporarily increased capacity. NaAlH4 was the best performer in both studies and no new mixed alanates were observed, a result consistent with the VHTS. Powder XRD suggested that the reverse reaction, the regeneration of the alanate from alkali hydride, Al and hydrogen, was hampering reversibility. The reverse reaction was then studied for the same phase diagram, starting with LiH, NaH, and MgH2, and Al. The study was extended to phase diagrams including KH and CaH2 as well. The observed hydrogen storage capacity in the Al hexahydrides was less than 4 wt. %, well short of DOE targets. The HT assay came on line and after certification with studies on NaAlH4, was first applied to the LiNH2 - LiBH4 - MgH2 phase diagram. The 60-point study elucidated trends within the system locating an optimum material of 0.6 LiNH2 ?? 0.3 MgH2 ?? 0.1 LiBH4 that stored about 4 wt. % H2 reversibly and operated below 220 °C. Also present was the phase Li4(NH2)3BH4, which had been discovered in the LiNH2 -LiBH4 system. This new ternary formulation performed much better than the well-known 2 LiNH2 ?? MgH2 system by 50 °C in the HT assay. The Li4(NH2)3BH4 is a low melting ionic liquid under our test conditions and facilitates the phase transformations required in the hydrogen storage reaction, which no longer relies on a higher energy solid state reaction pathway. Further study showed that the 0.6 LiNH2 ?? 0.3 MgH2 ?? 0.1 LiBH4 formulation was very stable with respect to ammonia and diborane desorption, the observed desorption was from hydrogen. This result could not have been anticipated and was made possible by the efficiency of HT combinatorial methods. Investigation of the analogous LiNH2 ?? LiBH4 ?? CaH2 phase diagram revealed new reversible hydrogen storage materials 0.625 LiBH4 + 0.375 CaH2 and 0.375 LiNH2 + 0.25 LiBH4 + 0.375 CaH2 operating at 1 wt. % reversible hydrogen below 175 °C. Powder x-ray diffraction revealed a new structure for the spent materials which had not been previously observed. While the storage capacity was not impressive, an important aspect is that it boron appears to participate in a low temperature reversible reaction. The last major area of study also focused

Lesch, David A; Adriaan Sachtler, J.W. J.; Low, John J; Jensen, Craig M; Ozolins, Vidvuds; Siegel, Don

2011-02-14T23:59:59.000Z

419

Discovery of Novel Complex Metal Hydrides for Hydrogen Storage through Molecular Modeling and Combinatorial Methods  

SciTech Connect

UOP LLC, a Honeywell Company, Ford Motor Company, and Striatus, Inc., collaborated with Professor Craig Jensen of the University of Hawaii and Professor Vidvuds Ozolins of University of California, Los Angeles on a multi-year cost-shared program to discover novel complex metal hydrides for hydrogen storage. This innovative program combined sophisticated molecular modeling with high throughput combinatorial experiments to maximize the probability of identifying commercially relevant, economical hydrogen storage materials with broad application. A set of tools was developed to pursue the medium throughput (MT) and high throughput (HT) combinatorial exploratory investigation of novel complex metal hydrides for hydrogen storage. The assay programs consisted of monitoring hydrogen evolution as a function of temperature. This project also incorporated theoretical methods to help select candidate materials families for testing. The Virtual High Throughput Screening served as a virtual laboratory, calculating structures and their properties. First Principles calculations were applied to various systems to examine hydrogen storage reaction pathways and the associated thermodynamics. The experimental program began with the validation of the MT assay tool with NaAlH4/0.02 mole Ti, the state of the art hydrogen storage system given by decomposition of sodium alanate to sodium hydride, aluminum metal, and hydrogen. Once certified, a combinatorial 21-point study of the NaAlH4 ?? LiAlH4 ??Mg(AlH4)2 phase diagram was investigated with the MT assay. Stability proved to be a problem as many of the materials decomposed during synthesis, altering the expected assay results. This resulted in repeating the entire experiment with a mild milling approach, which only temporarily increased capacity. NaAlH4 was the best performer in both studies and no new mixed alanates were observed, a result consistent with the VHTS. Powder XRD suggested that the reverse reaction, the regeneration of the alanate from alkali hydride, Al and hydrogen, was hampering reversibility. The reverse reaction was then studied for the same phase diagram, starting with LiH, NaH, and MgH2, and Al. The study was extended to phase diagrams including KH and CaH2 as well. The observed hydrogen storage capacity in the Al hexahydrides was less than 4 wt. %, well short of DOE targets. The HT assay came on line and after certification with studies on NaAlH4, was first applied to the LiNH2 - LiBH4 - MgH2 phase diagram. The 60-point study elucidated trends within the system locating an optimum material of 0.6 LiNH2 ?? 0.3 MgH2 ?? 0.1 LiBH4 that stored about 4 wt. % H2 reversibly and operated below 220 °C. Also present was the phase Li4(NH2)3BH4, which had been discovered in the LiNH2 -LiBH4 system. This new ternary formulation performed much better than the well-known 2 LiNH2 ?? MgH2 system by 50 °C in the HT assay. The Li4(NH2)3BH4 is a low melting ionic liquid under our test conditions and facilitates the phase transformations required in the hydrogen storage reaction, which no longer relies on a higher energy solid state reaction pathway. Further study showed that the 0.6 LiNH2 ?? 0.3 MgH2 ?? 0.1 LiBH4 formulation was very stable with respect to ammonia and diborane desorption, the observed desorption was from hydrogen. This result could not have been anticipated and was made possible by the efficiency of HT combinatorial methods. Investigation of the analogous LiNH2 ?? LiBH4 ?? CaH2 phase diagram revealed new reversible hydrogen storage materials 0.625 LiBH4 + 0.375 CaH2 and 0.375 LiNH2 + 0.25 LiBH4 + 0.375 CaH2 operating at 1 wt. % reversible hydrogen below 175 °C. Powder x-ray diffraction revealed a new structure for the spent materials which had not been previously observed. While the storage capacity was not impressive, an important aspect is that it boron appears to participate in a low temperature reversible reaction. The last major area of study also focused

Lesch, David A; Adriaan Sachtler, J.W. J.; Low, John J; Jensen, Craig M; Ozolins, Vidvuds; Siegel, Don

2011-02-14T23:59:59.000Z

420

Method and system for hydrogen evolution and storage  

DOE Patents (OSTI)

A method and system for storing and evolving hydrogen (H.sub.2) employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.

Thorn, David L.; Tumas, William; Hay, P. Jeffrey; Schwarz, Daniel E.; Cameron, Thomas M.

2012-12-11T23:59:59.000Z

Note: This page contains sample records for the topic "hydrogen storage materials" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Method and System for Hydrogen Evolution and Storage  

DOE Patents (OSTI)

A method and system for storing and evolving hydrogen employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.

Thorn, David L. (Los Alamos, NM); Tumas, William (Los Alamos, NM); Hay, P. Jeffrey (Los Alamos, NM); Schwarz, Daniel E. (Los Alamos, NM); Cameron, Thomas M. (Los Alamos, NM)

2008-10-21T23:59:59.000Z

422

NREL Develops Accelerated Sample Activation Process for Hydrogen...  

NLE Websites -- All DOE Office Websites (Extended Search)

0 * December 2010 NREL Develops Accelerated Sample Activation Process for Hydrogen Storage Materials Project: Hydrogen Sorption Center of Excellence - Hydrogen Sorption via...

423

Systems and methods for facilitating hydrogen storage using naturally occurring nanostructure assemblies  

SciTech Connect

Some or all of the needs above can be addressed by embodiments of the invention. According to embodiments of the invention, systems and methods for facilitating hydrogen storage using naturally occurring nanostructure assemblies can be implemented. In one embodiment, a method for storing hydrogen can be provided. The method can include providing diatoms comprising diatomaceous earth or diatoms from a predefined culture. In addition, the method can include heating the diatoms in a sealed environment in the presence of at least one of titanium, a transition metal, or a noble metal to provide a porous hydrogen storage medium. Furthermore, the method can include exposing the porous hydrogen storage medium to hydrogen. In addition, the method can include storing at least a portion of the hydrogen in the porous hydrogen storage medium.

Fliermans; , Carl B. (Augusta, GA)

2012-08-07T23:59:59.000Z

424

Method and system for hydrogen evolution and storage - Energy ...  

A method and system for storing and evolving hydrogen employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to ...

425

Implementing a Hydrogen Energy Infrastructure: Storage Options and System Design  

E-Print Network (OSTI)

Natural Gas Based Hydrogen Infrastructure Optimizingof the 2005 National Hydrogen Association Meeting,the lowest-cost Hydrogen delivery mode , Manuscript

Ogden, Joan M; Yang, Christopher

2005-01-01T23:59:59.000Z

426

Hydrogen Storage Properties of Lithium Aluminohydride Modified by Dopants and Mechanochemistry  

DOE Green Energy (OSTI)

Alkali metal aluminohydrides have high potential as solid hydrogen storage materials. They have been known for their irreversible dehydrogenation process below 100 atm until Bogdanovic et al [1, 2] succeeded in the re-hydrogenation of NaAlH{sub 4} below 70 atm. They achieved 4 wt.% H{sub 2} reversible capacity by doping NaAlH{sub 4} with Ti and/or Fe organo-metalic compounds as catalysts. This suggests that other alkali and, possibly alkaline earth metal aluminohydrides can be used for reversible hydrogen storage when modified by proper dopants. In this research, Zr{sub 27}Ti{sub 9}Ni{sub 38}V{sub 5}Mn{sub 16}Cr{sub 5}, LaNi{sub 4.85}Sn{sub 0.15}, Al{sub 3}Ti, and PdCl{sub 2} were combined , LaNi4.85Sn0.15, Al3Ti, and PdCl2 were combined with LiAlH{sub 4} by ball-milling to study whether or not LiAlH{sub 4} is capable to both absorb and desorb hydrogen near ambient conditions. X-ray powder diffraction, differential thermal analysis, and scanning electron microscopy were employed for sample characterizations. All four compounds worked as catalysts in the dehydrogenation reactions of both LiAlH{sub 4} and Li{sub 3}AlH{sub 6} by inducing the decomposition at lower temperature. However, none of them was applicable as catalyst in the reverse hydrogenation reaction at low to moderate hydrogen pressure.

Keita Hosokawa

2002-08-01T23:59:59.000Z

427

Pu-Bearing Materials - From Fundamental Science to Storage Standards  

Science Conference Proceedings (OSTI)

The behavior of plutonium (Pu) oxides in the presence of water/moisture in a confined space and the associated issues of hydrogen and oxygen generation due to radiolysis have important implications for the storage and transportation of Pu-bearing materials. This paper reviews the results of recent studies of gas generation in the Pu-O-H system, including the determination of release rates via engineering-scale measurement. The observations of the significant differences in gas generation behavior between 'pure' Pu-bearing materials and those that contain salt impurities are addressed. In conjunction with the discussion of these empirical observations, this work also addresses recent scientific advances in the investigations of the Pu-O-H system using state-of-the-art ab initio electronic structure calculations, as well as advanced synchrotron techniques to determine the electronic structure of the various Pu-containing phases. The role of oxidizing species such as the hydroxyl radical from the radiolysis of water is examined. Discussed also is the challenge in the predictive ab-initio calculations of the electronic structure of the Pu-H-O system, due to the nature of the 5f valence electrons in Pu. Coupled with the continuing material surveillance program, it is anticipated that this work may help determine the electronic structure of the various Pu-containing phases and the role of impurity salts on gas generation and the long-term stability of oxygen/hydrogen-containing plutonium oxides beyond PuO{sub 2}. (authors)

Shiu-Wing Tam; Yung Liu [Decision and Information Sciences Div., Argonne National Laboratory, 9700 S. Cass Avenue, Bldg. 900, MS-12, Argonne, IL, 60439 (United States)

2008-07-01T23:59:59.000Z

428

New Materials for Energy Storage and Electrocatalysis  

Science Conference Proceedings (OSTI)

Enhanced Electrical Capacitance and Energy Storage in Defect Induced ... Silicon-based Electrodes for Li-ion Batteries: Spectroscopic Analysis for Improved...

429

Carbon-based Materials for Energy Storage  

E-Print Network (OSTI)

storage systems, left, and supercapacitor taxonomy, right 34illustrates the taxonomy of supercapacitor systems and theprevalent type of supercapacitor. EDLCs were first conceived

Rice, Lynn Margaret

2012-01-01T23:59:59.000Z

430

Energy Storage: Materials, Systems and Applications  

Science Conference Proceedings (OSTI)

Mar 29, 2011 ... The transition from the fossil economy to a greener, sustainable economy cannot, however, be realized without efficient energy storage systems...

431

Nanocomposite Materials for Energy Storage Devices  

Science Conference Proceedings (OSTI)

Abstract Scope, High power energy storage devices are critical for the development of zero-emission electrical vehicles, large scale smart grid, and energy...

432

Summary status of advanced water electrolysis and hydrogen storage/transport R and D  

SciTech Connect

Major projects within the framework of the U.S. DOE Chemical/Hydrogen Energy Systems Program are described. Goals, accomplishments and status of investigations into advanced water electrolysis and hydrogen storage/transport are summarized. Electrolytic hydrogen production systems include: SPE electrolyzers; static feed water electrolysis; high temperature electrolysis; and other advanced concepts. Hydrogen transport studies have emphasized the characterization of hydrogen embrittlement effects on conventional natural gas pipeline steels.

Mezzina, A.

1984-04-01T23:59:59.000Z

433

Efficient Heat Storage Materials: Metallic Composites Phase-Change Materials for High-Temperature Thermal Energy Storage  

SciTech Connect

HEATS Project: MIT is developing efficient heat storage materials for use in solar and nuclear power plants. Heat storage materials are critical to the energy storage process. In solar thermal storage systems, heat can be stored in these materials during the day and released at nightwhen the suns not outto drive a turbine and produce electricity. In nuclear storage systems, heat can be stored in these materials at night and released to produce electricity during daytime peak-demand hours. MIT is designing nanostructured heat storage materials that can store a large amount of heat per unit mass and volume. To do this, MIT is using phase change materials, which absorb a large amount of latent heat to melt from solid to liquid. MITs heat storage materials are designed to melt at high temperatures and conduct heat wellthis makes them efficient at storing and releasing heat and enhances the overall efficiency of the thermal storage and energy-generation process. MITs low-cost heat storage materials also have a long life cycle, which further enhances their efficiency.

None

2011-11-21T23:59:59.000Z

434

Modular Energy Storage System for Hydrogen Fuel Cell Vehicles  

SciTech Connect

The objective of the project is to develop technologies, specifically power electronics, energy storage electronics and controls that provide efficient and effective energy management between electrically powered devices in alternative energy vehicles ?? plug-in electric vehicles, hybrid vehicles, range extended vehicles, and hydrogen-based fuel cell vehicles. The in-depth research into the complex interactions between the lower and higher voltage systems from data obtained via modeling, bench testing and instrumented vehicle data will allow an optimum system to be developed from a performance, cost, weight and size perspective. The subsystems are designed for modularity so that they may be used with different propulsion and energy delivery systems. This approach will allow expansion into new alternative energy vehicle markets.

Janice Thomas

2010-05-31T23:59:59.000Z

435

Final Report: Main Group Element Chemistry in Service of Hydrogen Storage and Activation  

Science Conference Proceedings (OSTI)

Replacing combustion of carbon-based fuels with alternative energy sources that have minimal environmental impact is one of the grand scientific and technological challenges of the early 21st century. Not only is it critical to capture energy from new, renewable sources, it is also necessary to store the captured energy efficiently and effectively for use at the point of service when and where it is needed, which may not be collocated with the collection site. There are many potential storage media but we focus on the storage of energy in chemical bonds. It is more efficient to store energy on a per weight basis in chemical bonds. This is because it is hard to pack electrons into small volumes with low weight without the use of chemical bonds. The focus of the project was the development of new chemistries to enable DOE to meet its technical objectives for hydrogen storage using chemical hydrogen storage systems. We provided computational chemistry support in terms of thermodynamics, kinetics, and properties prediction in support of the experimental efforts of the DOE Center of Excellence for Chemical Hydrogen Storage. The goal of the Center is to store energy in chemical bonds involving hydrogen atoms. Once the hydrogen is stored in a set of X-H/Y-H bonds, the hydrogen has to be easily released and the depleted fuel regenerated very efficiently. This differs substantially from our current use of fossil fuel energy sources where the reactant is converted to energy plus CO2 (coal) or CO2 and H2O (gasoline, natural gas), which are released into the atmosphere. In future energy storage scenarios, the spent fuel will be captured and the energy storage medium regenerated. This places substantial additional constraints on the chemistry. The goal of the computational chemistry work was to reduce the time to design new materials and develop materials that meet the 2010 and 2015 DOE objectives in terms of weight percent, volume, release time, and regeneration ability. This goal was met in terms of reducing the number of costly experiments and helping to focus the experimental effort on the potentially optimal targets. We have used computational chemistry approaches to predict the thermodynamic properties of a wide range of compounds containing boron, nitrogen, hydrogen, and other elements as appropriate including carbon. These calculations were done in most cases with high level molecular orbital theory methods that have small error bars on the order of 1 to 2 kcal/mol. The results were used to benchmark more approximate methods such as density functional theory for larger systems and for database development. We predicted reliable thermodynamics for thousands of compounds for release and regeneration schemes to aid/guide materials design and process design and simulation. These are the first reliable computed values for these compounds and for many represent the only available values. Overall, the computational results have provided us with new insights into the chemistry of main group and organic-base chemical hydrogen systems from the release of hydrogen to the regeneration of spent fuel. A number of experimental accomplishments were also made in this project. The experimental work on hydrogen storage materials centered on activated polarized ?- or ?-bonded frameworks that hold the potential for ready dihydrogen activation, uptake, and eventually release. To this end, a large number of non-traditional valence systems including carbenes, cyanocarbons, and C-B and and B-N systems were synthesized and examined. During the course of these studies an important lead arose from the novel valency of a class of stable organic singlet bi-radical systems. A synthetic strategy to an endless hydrogen storage polymer has been developed based on our cyanocarbon chemistry. A key issue with the synthetic efforts was being able to link the kinetics of release with the size of the substituents as it was difficult to develop a low molecular weight molecule with the right kinetics. A novel hydrogen activation process has been developed

David A. Dixon; Anthony J. Arduengo, III

2010-09-30T23:59:59.000Z

436

Final Report: Main Group Element Chemistry in Service of Hydrogen Storage and Activation  

DOE Green Energy (OSTI)

Replacing combustion of carbon-based fuels with alternative energy sources that have minimal environmental impact is one of the grand scientific and technological challenges of the early 21st century. Not only is it critical to capture energy from new, renewable sources, it is also necessary to store the captured energy efficiently and effectively for use at the point of service when and where it is needed, which may not be collocated with the collection site. There are many potential storage media but we focus on the storage of energy in chemical bonds. It is more efficient to store energy on a per weight basis in chemical bonds. This is because it is hard to pack electrons into small volumes with low weight without the use of chemical bonds. The focus of the project was the development of new chemistries to enable DOE to meet its technical objectives for hydrogen storage using chemical hydrogen storage systems. We provided computational chemistry support in terms of thermodynamics, kinetics, and properties prediction in support of the experimental efforts of the DOE Center of Excellence for Chemical Hydrogen Storage. The goal of the Center is to store energy in chemical bonds involving hydrogen atoms. Once the hydrogen is stored in a set of X-H/Y-H bonds, the hydrogen has to be easily released and the depleted fuel regenerated very efficiently. This differs substantially from our current use of fossil fuel energy sources where the reactant is converted to energy plus CO2 (coal) or CO2 and H2O (gasoline, natural gas), which are released into the atmosphere. In future energy storage scenarios, the spent fuel will be captured and the energy storage medium regenerated. This places substantial additional constraints on the chemistry. The goal of the computational chemistry work was to reduce the time to design new materials and develop materials that meet the 2010 and 2015 DOE objectives in terms of weight percent, volume, release time, and regeneration ability. This goal was met in terms of reducing the number of costly experiments and helping to focus the experimental effort on the potentially optimal targets. We have used computational chemistry approaches to predict the thermodynamic properties of a wide range of compounds containing boron, nitrogen, hydrogen, and other elements as appropriate including carbon. These calculations were done in most cases with high level molecular orbital theory methods that have small error bars on the order of 1 to 2 kcal/mol. The results were used to benchmark more approximate methods such as density functional theory for larger systems and for database development. We predicted reliable thermodynamics for thousands of compounds for release and regeneration schemes to aid/guide materials design and process design and simulation. These are the first reliable computed values for these compounds and for many represent the only available values. Overall, the computational results have provided us with new insights into the chemistry of main group and organic-base chemical hydrogen systems from the release of hydrogen to the regeneration of spent fuel. A number of experimental accomplishments were also made in this project. The experimental work on hydrogen storage materials centered on activated polarized ?- or ?-bonded frameworks that hold the potential for ready dihydrogen activation, uptake, and eventually release. To this end, a large number of non-traditional valence systems including carbenes, cyanocarbons, and C-B and and B-N systems were synthesized and examined. During the course of these studies an important lead arose from the novel valency of a class of stable organic singlet bi-radical systems. A synthetic strategy to an endless hydrogen storage polymer has been developed based on our cyanocarbon chemistry. A key issue with the synthetic efforts was being able to link the kinetics of release with the size of the substituents as it was difficult to develop a low molecular weight molecule with the right kinetics. A novel hydrogen activation process has been developed

David A. Dixon; Anthony J. Arduengo, III

2010-09-30T23:59:59.000Z

437

Hydrogen Effects on Material Behavior and Corrosion Deformation ...  

Science Conference Proceedings (OSTI)

Dec 1, 2003 ... Out of Print. Description Previously published volumes from the Hydrogen Effects on Material Behavior meetings have been regarded as the...

438

DOE to Invest up to $8.2 Million for Hydrogen Storage Research | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

to Invest up to $8.2 Million for Hydrogen Storage Research to Invest up to $8.2 Million for Hydrogen Storage Research DOE to Invest up to $8.2 Million for Hydrogen Storage Research April 12, 2007 - 12:36pm Addthis WASHINGTON, DC - U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today announced DOE plans to provide up to $8.2 million, over four years (FY'07-'10), for six hydrogen storage research projects, directly supporting President Bush's Advanced Energy Initiative (AEI). The AEI aims to increase our energy security and reduce our reliance on imported oil by changing the way we power our cars, homes and businesses. These projects, subject to negotiation of scope and funding, are also integral to the President's Hydrogen Fuel Initiative. "As a clean energy technology, hydrogen has great potential to help reduce

439

DOE to Invest up to $8.2 Million for Hydrogen Storage Research | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

up to $8.2 Million for Hydrogen Storage Research up to $8.2 Million for Hydrogen Storage Research DOE to Invest up to $8.2 Million for Hydrogen Storage Research April 12, 2007 - 12:36pm Addthis WASHINGTON, DC - U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today announced DOE plans to provide up to $8.2 million, over four years (FY'07-'10), for six hydrogen storage research projects, directly supporting President Bush's Advanced Energy Initiative (AEI). The AEI aims to increase our energy security and reduce our reliance on imported oil by changing the way we power our cars, homes and businesses. These projects, subject to negotiation of scope and funding, are also integral to the President's Hydrogen Fuel Initiative. "As a clean energy technology, hydrogen has great potential to help reduce

440

Overview of Two Hydrogen Energy Storage Studies: Wind Hydrogen in California and Blending in Natural Gas Pipelines (Presentation)  

DOE Green Energy (OSTI)

This presentation provides an overview of two NREL energy storage studies: Wind Hydrogen in California: Case Study and Blending Hydrogen Into Natural Gas Pipeline Networks: A Review of Key Issues. The presentation summarizes key issues, major model input assumptions, and results.

Melaina, M. W.

2013-05-01T23:59:59.000Z

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