Sample records for delivery hydrogen storage

  1. Hydrogen Storage Technologies Hydrogen Delivery

    E-Print Network [OSTI]

    Hydrogen Storage Technologies Roadmap Hydrogen Delivery Technical Team Roadmap June 2013 #12;This). The Hydrogen Delivery Technical Team is one of 12 U.S. DRIVE technical teams ("tech teams") whose mission and clean advanced lightduty vehicles, as well as related energy infrastructure. For more information about

  2. Bulk Hydrogen Storage - Strategic Directions for Hydrogen Delivery...

    Broader source: Energy.gov (indexed) [DOE]

    Bulk Hydrogen Storage - Strategic Directions for Hydrogen Delivery Workshop Bulk Hydrogen Storage - Strategic Directions for Hydrogen Delivery Workshop Targets, barriers and...

  3. Agenda for the Hydrogen Delivery and Onboard Storage Analysis...

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

    Hydrogen Delivery and Onboard Storage Analysis Workshop Agenda for the Hydrogen Delivery and Onboard Storage Analysis Workshop Agenda for the Hydrogen Delivery and Onboard Storage...

  4. Autothermal hydrogen storage and delivery systems

    DOE Patents [OSTI]

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

    2011-08-23T23:59:59.000Z

    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.

  5. Hydrogen Delivery Infrastructure Option Analysis

    Broader source: Energy.gov (indexed) [DOE]

    Infrastructure Hydrogen Delivery Infrastructure Option Analysis Option Analysis DOE and FreedomCAR & Fuel Partnership Hydrogen Delivery and On-Board Storage Analysis Workshop...

  6. Joint Meeting on Hydrogen Delivery Modeling and Analysis FreedomCAR and Fuels Partnership Hydrogen Delivery, Storage and

    E-Print Network [OSTI]

    . ­ The current capital costs for the hydrogen pipelines in the model are based on 1.1X the price of steel naturalJoint Meeting on Hydrogen Delivery Modeling and Analysis FreedomCAR and Fuels Partnership Hydrogen be prioritized) by mid-2008 H2A Delivery Model: Discussion Items, Comments, and Follow-up Actions 1. Pipeline

  7. Hydrogen Delivery- Current Technology

    Broader source: Energy.gov [DOE]

    Hydrogen is transported from the point of production to the point of use via pipeline, over the road in cryogenic liquid trucks or gaseous tube trailers, or by rail or barge. Read on to learn more about current hydrogen delivery and storage technologies.

  8. Liquid Hydrogen Delivery - Strategic Directions for Hydrogen...

    Broader source: Energy.gov (indexed) [DOE]

    Liquid Hydrogen Delivery - Strategic Directions for Hydrogen Delivery Workshop Liquid Hydrogen Delivery - Strategic Directions for Hydrogen Delivery Workshop Targets, barriers and...

  9. H2A Delivery: Forecourt Compression & Storage Optimization (Part...

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

    H2A Delivery: H2A Delivery: Forecourt Compression & Forecourt Compression & Storage Optimization (Part II) Storage Optimization (Part II) Hydrogen Delivery Analysis Meeting May...

  10. 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

  11. Hydrogen Delivery Analysis Models

    Broader source: Energy.gov (indexed) [DOE]

    insert our Research Targets to see the impact List of Delivery Components Compressed Hydrogen Gas Truck (Tube trailer) Compressed Hydrogen Gas Truck Terminal Liquid Hydrogen Truck...

  12. Gaseous Hydrogen Delivery Breakout - Strategic Directions for...

    Broader source: Energy.gov (indexed) [DOE]

    Gaseous Hydrogen Delivery Breakout - Strategic Directions for Hydrogen Delivery Workshop Gaseous Hydrogen Delivery Breakout - Strategic Directions for Hydrogen Delivery Workshop...

  13. Joint Meeting on Hydrogen Delivery Modeling and Analysis Meeting...

    Broader source: Energy.gov (indexed) [DOE]

    Meeting on Hydrogen Delivery Modeling and Analysis FreedomCAR and Fuels Partnership Hydrogen Delivery, Storage and Fuel Pathway Integration Tech Teams May 8-9, 2007 Energetics...

  14. Gaseous Hydrogen Delivery Breakout

    E-Print Network [OSTI]

    Gaseous Hydrogen Delivery Breakout Strategic Directions for Hydrogen Delivery Workshop May 7 detection Pipeline Safety: odorants, flame visibility Compression: cost, reliability #12;Breakout Session goal of a realistic, multi-energy distribution network model Pipeline Technology Improved field

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

    E-Print Network [OSTI]

    an autothermal hydrogen storage and delivery concept using an organic liquid carrier for hydrogen. Joe Reiter

  16. Hydrogen Delivery Mark Paster

    E-Print Network [OSTI]

    Liquids (e.g. ethanol etc.) ­ Truck: HP Gas & Liquid Hydrogen ­ Regional Pipelines ­ Breakthrough Hydrogen;Delivery Key Challenges · Pipelines ­ Retro-fitting existing NG pipeline for hydrogen ­ Utilizing existing NG pipeline for Hythane with cost effective hydrogen separation technology ­ New hydrogen pipeline

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

    E-Print Network [OSTI]

    aspects of hydrogen utilization. production distribution utilization How do we achieve safe, efficient Forecourt storage (refueling stations) requirements being developed (IHIG) Distribution storage (delivery 75 100 125 hydrogen m ethane ethane propane butane pentane hexane heptane octane (gasoline) cetane

  18. Toward new solid and liquid phase systems for the containment, transport and delivery of hydrogen

    Broader source: Energy.gov [DOE]

    Toward new solid and liquid phase systems for the containment, transport and delivery of hydrogen.Solid and liquid hydrogen carriers for use in hydrogen storage and delivery.

  19. Metal?organic frameworks for the storage and delivery of biologically active hydrogen sulfide

    SciTech Connect (OSTI)

    Allan, Phoebe K.; Wheatley, Paul S.; Aldous, David; Mohideen, M. Infas; Tang, Chiu; Hriljac, Joseph A.; Megson, Ian L.; Chapman, Karena W.; De Weireld, Guy; Vaesen, Sebastian; Morris, Russell E. (St Andrews)

    2012-04-02T23:59:59.000Z

    Hydrogen sulfide is an extremely toxic gas that is also of great interest for biological applications when delivered in the correct amount and at the desired rate. Here we show that the highly porous metal-organic frameworks with the CPO-27 structure can bind the hydrogen sulfide relatively strongly, allowing the storage of the gas for at least several months. Delivered gas is biologically active in preliminary vasodilation studies of porcine arteries, and the structure of the hydrogen sulfide molecules inside the framework has been elucidated using a combination of powder X-ray diffraction and pair distribution function analysis.

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

    SciTech Connect (OSTI)

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

    2008-12-31T23:59:59.000Z

    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.

  1. Gaseous Hydrogen Delivery Breakout- Strategic Directions for Hydrogen Delivery Workshop

    Broader source: Energy.gov [DOE]

    Targets, barriers and research and development priorities for gaseous delivery of hydrogen through hydrogen and natural gas pipelines.

  2. Liguid and Solid Carriers Group- Strategic Directions for Hydrogen Delivery Workshop

    Broader source: Energy.gov [DOE]

    Targets, barriers and research and development priorities for solid and liquid hydrogen storage and delivery materials.

  3. Hydrogen Delivery Liquefaction and Compression

    Broader source: Energy.gov [DOE]

    Hydrogen Delivery Liquefaction and Compression - Overview of commercial hydrogen liquefaction and compression and opportunities to improve efficiencies and reduce cost.

  4. Hydrogen Delivery - Basics | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Delivery Hydrogen Delivery - Basics Hydrogen Delivery - Basics Photo of light-duty vehicle at hydrogen refueling station. Infrastructure is required to move hydrogen from the...

  5. Hydrogen Delivery Options and Issues

    Broader source: Energy.gov (indexed) [DOE]

    stationary power site - GH2 Pipelines and Trucks, LH2 Trucks, Carriers <1.00kg of Hydrogen by 2017 Hydrogen Delivery H2 Delivery Current Status * Technology - GH2 Tube...

  6. Improvements to Hydrogen Delivery Scenario Analysis

    E-Print Network [OSTI]

    Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM) and Results May 8, 2007 Amgad and storage are at or adjacent to Liquid Hydrogen (LH) TruckH2 Production 100 or 1500 kg/d Compressed H2 (CH) Truck H2 Production 3 or 7 kpsi 100 or 1500 kg/d H2 Production Gaseous H2 Pipeline 100 or 1500 kg

  7. Hydrogen Storage Related Links

    Broader source: Energy.gov [DOE]

    The following resources provide details about DOE-funded hydrogen storage activities, research plans and roadmaps, models and tools, and additional related links.

  8. Hydrogen Production & Delivery | Department of Energy

    Energy Savers [EERE]

    Hydrogen Production & Delivery Hydrogen Production & Delivery "2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation H2...

  9. DOE and FreedomCAR and Fuel Partnership Hydrogen Delivery and...

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

    DOE and FreedomCAR and Fuel Partnership Hydrogen Delivery and On-Board Storage Analysis Workshop DOE and FreedomCAR and Fuel Partnership Hydrogen Delivery and On-Board Storage...

  10. Sandia National Laboratories: hydrogen storage

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    storage Energy Department Awards 7M to Advance Hydrogen Storage Systems On June 12, 2014, in CRF, Energy, Energy Storage, Energy Storage Systems, Facilities, Infrastructure...

  11. Ultrafine hydrogen storage powders

    DOE Patents [OSTI]

    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

    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.

  12. Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines...

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

    Permeability and Integrity of Hydrogen Delivery Pipelines Hydrogen Permeability and Integrity of Hydrogen Delivery Pipelines Project Objectives: To gain basic understanding of...

  13. A Brief Overview of Hydrogen Storage Issues and Needs

    Broader source: Energy.gov (indexed) [DOE]

    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...

  14. Hydrogen Delivery Infrastructure Options Analysis

    Fuel Cell Technologies Publication and Product Library (EERE)

    This report, by the Nexant team, documents an in-depth analysis of seven hydrogen delivery options to identify the most cost-effective hydrogen infrastructure for the transition and long term. The pro

  15. Hydrogen Distribution and Delivery Infrastructure

    Fuel Cell Technologies Publication and Product Library (EERE)

    This 2-page fact sheet provides a brief introduction to hydrogen delivery technologies. Intended for a non-technical audience, it explains how hydrogen is transported and delivered today, the challen

  16. Hydrogen storage and integrated fuel cell assembly

    DOE Patents [OSTI]

    Gross, Karl J. (Fremont, CA)

    2010-08-24T23:59:59.000Z

    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.

  17. HYDROGEN USAGE AND STORAGE

    E-Print Network [OSTI]

    It is thought that it will be useful to inform society and people who are interested in hydrogen energy. The study below has been prepared due to this aim can be accepted as an article to exchange of information between people working on this subject. This study has been presented to reader to be utilized as a technical note. Main Energy sources coal, petroleum and natural gas are the fossil fuels we use today. They are going to be exhausted since careless usage in last decades through out the world, and human being is going to face the lack of energy sources in the near future. On the other hand as the fossil fuels pollute the environment makes the hydrogen important for an alternative energy source against to the fossil fuels. Due to the slow progress in hydrogens production, storage and converting into electrical energy experience, extensive usage of Hydrogen can not find chance for applications in wide technological practices. Hydrogen storage stands on an important point in the development of Hydrogen energy Technologies. Hydrogen is volumetrically low energy concentration fuel. Hydrogen energy, to meet the energy quantity necessary for the nowadays technologies and to be accepted economically and physically against fossil fuels, Hydrogen storage technologies have to be developed in this manner. Today the most common method in hydrogen storage may be accepted as the high pressurized composite tanks. Hydrogen is stored as liquid or gaseous phases. Liquid hydrogen phase can be stored by using composite tanks under very high pressure conditions. High technology composite material products which are durable to high pressures, which should not be affected by hydrogen embrittlement and chemical conditions.[1

  18. Final Report - Hydrogen Delivery Infrastructure Options Analysis...

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

    - Hydrogen Delivery Infrastructure Options Analysis Final Report - Hydrogen Delivery Infrastructure Options Analysis This report, by the Nexant team, documents an in-depth analysis...

  19. Hydrogen storage compositions

    SciTech Connect (OSTI)

    Li, Wen; Vajo, John J.; Cumberland, Robert W.; Liu, Ping

    2011-04-19T23:59:59.000Z

    Compositions for hydrogen storage and methods of making such compositions employ an alloy that exhibits reversible formation/deformation of BH4- anions. The composition includes a ternary alloy including magnesium, boron and a metal and a metal hydride. The ternary alloy and the metal hydride are present in an amount sufficient to render the composition capable of hydrogen storage. The molar ratio of the metal to magnesium and boron in the alloy is such that the alloy exhibits reversible formation/deformation of BH4- anions. The hydrogen storage composition is prepared by combining magnesium, boron and a metal to prepare a ternary alloy and combining the ternary alloy with a metal hydride to form the hydrogen storage composition.

  20. Hydrogen storage compositions

    DOE Patents [OSTI]

    Li, Wen; Vajo, John J.; Cumberland, Robert W.; Liu, Ping

    2011-04-19T23:59:59.000Z

    Compositions for hydrogen storage and methods of making such compositions employ an alloy that exhibits reversible formation/deformation of BH.sub.4.sup.- anions. The composition includes a ternary alloy including magnesium, boron and a metal and a metal hydride. The ternary alloy and the metal hydride are present in an amount sufficient to render the composition capable of hydrogen storage. The molar ratio of the metal to magnesium and boron in the alloy is such that the alloy exhibits reversible formation/deformation of BH.sub.4.sup.- anions. The hydrogen storage composition is prepared by combining magnesium, boron and a metal to prepare a ternary alloy and combining the ternary alloy with a metal hydride to form the hydrogen storage composition.

  1. Hydrogen Storage Technical Team Roadmap

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

    and technology pathways are impacted by their analyses. These technical teams include Fuel Cells, Fuel Pathway Integration, Hydrogen Delivery, Hydrogen Production, Materials,...

  2. Hydrogen Storage CODES & STANDARDS

    E-Print Network [OSTI]

    automotive start-up. · Air/Thermal/Water Management ­ improved air systems, high temperature membranes, heat to pump Hydrogen Fuel/ Storage/ Infrastructure $45/kW (2010) $30kW (2015) 325 W/kg 220 W/L 60% (hydrogen system Component Air management, sensors, MEA's, membranes, Bipolar Plates, fuel processor reactor zones

  3. Gaseous and Liquid Hydrogen Storage

    Broader source: Energy.gov [DOE]

    Today's state of the art for hydrogen storage includes 5,000- and 10,000-psi compressed gas tanks and cryogenic liquid hydrogen tanks for on-board hydrogen storage.

  4. Inexpensive delivery of compressed hydrogen with advanced vessel technology

    E-Print Network [OSTI]

    of flexible refueling (compressed/cryogenic H2/(L)H2) #12;The PVT properties of H2 drive storage and delivery) Explore station demand from 70 kg H2/day to 1000 kg H2/day Real hydrogen thermodynamic and PVT diagram and vessel characteristics to minimize delivery cost Hydrogen and material properties Increased

  5. Hydrogen Delivery Technology Roadmap, November 2005

    Fuel Cell Technologies Publication and Product Library (EERE)

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

  6. Electrochemical hydrogen Storage Systems

    SciTech Connect (OSTI)

    Dr. Digby Macdonald

    2010-08-09T23:59:59.000Z

    As the global need for energy increases, scientists and engineers have found a possible solution by using hydrogen to power our world. Although hydrogen can be combusted as a fuel, it is considered an energy carrier for use in fuel cells wherein it is consumed (oxidized) without the production of greenhouse gases and produces electrical energy with high efficiency. Chemical storage of hydrogen involves release of hydrogen in a controlled manner from materials in which the hydrogen is covalently bound. Sodium borohydride and aminoborane are two materials given consideration as chemical hydrogen storage materials by the US Department of Energy. A very significant barrier to adoption of these materials as hydrogen carriers is their regeneration from 'spent fuel,' i.e., the material remaining after discharge of hydrogen. The U.S. Department of Energy (DOE) formed a Center of Excellence for Chemical Hydrogen Storage, and this work stems from that project. The DOE has identified boron hydrides as being the main compounds of interest as hydrogen storage materials. The various boron hydrides are then oxidized to release their hydrogen, thereby forming a 'spent fuel' in the form of a lower boron hydride or even a boron oxide. The ultimate goal of this project is to take the oxidized boron hydrides as the spent fuel and hydrogenate them back to their original form so they can be used again as a fuel. Thus this research is essentially a boron hydride recycling project. In this report, research directed at regeneration of sodium borohydride and aminoborane is described. For sodium borohydride, electrochemical reduction of boric acid and sodium metaborate (representing spent fuel) in alkaline, aqueous solution has been investigated. Similarly to literature reports (primarily patents), a variety of cathode materials were tried in these experiments. Additionally, approaches directed at overcoming electrostatic repulsion of borate anion from the cathode, not described in the previous literature for electrochemical reduction of spent fuels, have been attempted. A quantitative analytical method for measuring the concentration of sodium borohydride in alkaline aqueous solution has been developed as part of this work and is described herein. Finally, findings from stability tests for sodium borohydride in aqueous solutions of several different compositions are reported. For aminoborane, other research institutes have developed regeneration schemes involving tributyltin hydride. In this report, electrochemical reduction experiments attempting to regenerate tributyltin hydride from tributyltin chloride (a representative by-product of the regeneration scheme) are described. These experiments were performed in the non-aqueous solvents acetonitrile and 1,2-dimethoxyethane. A non-aqueous reference electrode for electrolysis experiments in acetonitrile was developed and is described. One class of boron hydrides, called polyhedral boranes, became of interest to the DOE due to their ability to contain a sufficient amount of hydrogen to meet program goals and because of their physical and chemical safety attributes. Unfortunately, the research performed here has shown that polyhedral boranes do not react in such a way as to allow enough hydrogen to be released, nor do they appear to undergo hydrogenation from the spent fuel form back to the original hydride. After the polyhedral boranes were investigated, the project goals remained the same but the hydrogen storage material was switched by the DOE to ammonia borane. Ammonia borane was found to undergo an irreversible hydrogen release process, so a direct hydrogenation was not able to occur. To achieve the hydrogenation of the spent ammonia borane fuel, an indirect hydrogenation reaction is possible by using compounds called organotin hydrides. In this process, the organotin hydrides will hydrogenate the spent ammonia borane fuel at the cost of their own oxidation, which forms organotin halides. To enable a closed-loop cycle, our task was then to be able to hydrogenate the organotin halides back to th

  7. Hydrogen Delivery Technologies and Systems- Pipeline Transmission of Hydrogen

    Broader source: Energy.gov [DOE]

    Hydrogen Delivery Technologies and Systems - Pipeline Transmission of Hydrogen. Design and operations standards and materials for hydrogen and natural gas pipelines.

  8. Solid-State Hydrogen Storage: Storage Capacity,Thermodynamics...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hydrogen Storage: Storage Capacity,Thermodynamics and Kinetics. Solid-State Hydrogen Storage: Storage Capacity,Thermodynamics and Kinetics. Abstract: Solid-state reversible...

  9. Webinar: Hydrogen Storage Materials Requirements

    Broader source: Energy.gov [DOE]

    Video recording and text version of the webinar titled, Hydrogen Storage Materials Requirements, originally presented on June 25, 2013.

  10. Application of Hydrogen Storage Technologies for Use in Fueling

    E-Print Network [OSTI]

    of Hydrogen Storage Technologies Prepared for the U.S. Department of Energy Office of Electricity DeliveryApplication of Hydrogen Storage Technologies for Use in Fueling Fuel Cell Electric Vehicles technologies to support hydrogen dispensing stations Submitted by Hawai`i Natural Energy Institute School

  11. Delivery of Hydrogen Produced from Natural Gas

    E-Print Network [OSTI]

    for transportation and stationary power. DOE Milestone #12;Hydrogen Delivery Options · Gaseous hydrogen - Pipelines, corrosion Gaseous hydrogen pipeline delivery program would share similar technology R&D areasDelivery of Hydrogen Produced from Natural Gas Christopher Freitas Office of Natural Gas

  12. Combinatorial Approaches for Hydrogen Storage Materials (presentation...

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

    Approaches for Hydrogen Storage Materials (presentation) Combinatorial Approaches for Hydrogen Storage Materials (presentation) Presentation on NIST Combinatorial Methods at the...

  13. Nanostructured materials for hydrogen storage

    DOE Patents [OSTI]

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

    2007-12-04T23:59:59.000Z

    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.

  14. Hydrogen Delivery Infrastructure Analysis, Options and Trade...

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

    Analysis, Options and Trade-offs, Transition and Long-term Hydrogen Delivery Infrastructure Analysis, Options and Trade-offs, Transition and Long-term Presentation on Hydrogen...

  15. Hydrogen Delivery Technologies and Pipeline Transmission of Hydrogen

    E-Print Network [OSTI]

    Hydrogen Delivery Technologies and Systems Pipeline Transmission of Hydrogen Strategic Initiatives, and Infrastructure Technologies Program #12;Pipeline Transmission of Hydrogen --- 2 Copyright: Design & Operation development) #12;Pipeline Transmission of Hydrogen --- 3 Copyright: Future H2 Infrastructure Wind Powered

  16. Enhancing hydrogen spillover and storage

    DOE Patents [OSTI]

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

    2013-02-12T23:59:59.000Z

    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.

  17. Enhancing hydrogen spillover and storage

    DOE Patents [OSTI]

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

    2011-05-31T23:59:59.000Z

    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.

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

    Broader source: Energy.gov (indexed) [DOE]

    5037: Hydrogen Storage Materials - 2004 vs. 2006 DOE Hydrogen and Fuel Cells Program Record 5037: Hydrogen Storage Materials - 2004 vs. 2006 This program record from the Department...

  19. Strategic Directions for Hydrogen Delivery Workshop Proceedings

    Broader source: Energy.gov [DOE]

    Proceedings from the Strategic Directions for Hydrogen Delivery Workshop held May 7-8, 2003 in Washington, DC. Author: Energetics

  20. Gas storage materials, including hydrogen storage materials

    DOE Patents [OSTI]

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

    2014-11-25T23:59:59.000Z

    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.

  1. Gas storage materials, including hydrogen storage materials

    DOE Patents [OSTI]

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

    2013-02-19T23:59:59.000Z

    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.

  2. Hydrogen Delivery Liquefaction & Compression

    E-Print Network [OSTI]

    temperature refrigeration Magnetic refrigerators Acoustic refrigerators #12;12 Challenges: More cost effective Refrigeration GN2 to N2 Liquefier To Feed H2 Flash Compressor H2 Recycle Compressor LN2 Add. To Storage/Fill #12 Higher efficiency compressors and expanders More efficient refrigeration Lower cost high

  3. Reversible hydrogen storage materials

    DOE Patents [OSTI]

    Ritter, James A. (Lexington, SC); Wang, Tao (Columbia, SC); Ebner, Armin D. (Lexington, SC); Holland, Charles E. (Cayce, SC)

    2012-04-10T23:59:59.000Z

    In accordance with the present disclosure, a process for synthesis of a complex hydride material for hydrogen storage is provided. The process includes mixing a borohydride with at least one additive agent and at least one catalyst and heating the mixture at a temperature of less than about 600.degree. C. and a pressure of H.sub.2 gas to form a complex hydride material. The complex hydride material comprises MAl.sub.xB.sub.yH.sub.z, wherein M is an alkali metal or group IIA metal, Al is the element aluminum, x is any number from 0 to 1, B is the element boron, y is a number from 0 to 13, and z is a number from 4 to 57 with the additive agent and catalyst still being present. The complex hydride material is capable of cyclic dehydrogenation and rehydrogenation and has a hydrogen capacity of at least about 4 weight percent.

  4. Hydrogen Storage Technologies Long-term commercialization approach

    E-Print Network [OSTI]

    for hydrogen storage/delivery systems. #12;Propane in generator Gas/diesel in generator BA55 series batteriesHydrogen Storage Technologies Long-term commercialization approach with first products first per unit power helps show the market space for fuel cell power plants. #12;Propane in generator Gas

  5. Potential Carriers and Approaches for Hydrogen Delivery

    Broader source: Energy.gov (indexed) [DOE]

    density (60%) which reduces volumetric energy density Pros: Potential for reversible hydrogen storage using waste heat to liberate hydrogen Operates in a reasonable T-P space (2...

  6. Chemical Hydrogen Storage Center Center of Excellence

    E-Print Network [OSTI]

    Carver, Jeffrey C.

    Chemical 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 Barriers Addressed #12;3 Chemical Hydrogen Storage Center Chemical Hydrogen Storage Center National

  7. Hydrogen storage and generation system

    DOE Patents [OSTI]

    Dentinger, Paul M. (Sunol, CA); Crowell, Jeffrey A. W. (Castro Valley, CA)

    2010-08-24T23:59:59.000Z

    A system for storing and generating hydrogen generally and, in particular, a system for storing and generating hydrogen for use in an H.sub.2/O.sub.2 fuel cell. The hydrogen storage system uses the beta particles from a beta particle emitting material to degrade an organic polymer material to release substantially pure hydrogen. In a preferred embodiment of the invention, beta particles from .sup.63Ni are used to release hydrogen from linear polyethylene.

  8. Catalytically Enhanced Hydrogen Storage Systems

    E-Print Network [OSTI]

    with the Freedom CAR hydrogen storage system targets (Key parameters: cost, specific energy, and energy density). #12;Objectives I. Determination of the chemical nature of the titanium species responsible that are compatible with the Freedom CAR hydrogen storage system targets. Key parameters: cost, specific energy

  9. Hydrogen Storage Materials Workshop Proceedings Workshop, October...

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

    Proceedings Workshop, October 16th, 2002 Hydrogen Storage Materials Workshop Proceedings Workshop, October 16th, 2002 A workshop on compressed and liquefied hydrogen storage was a...

  10. Hydrogen Storage Materials Requirements (Text Version) | Department...

    Broader source: Energy.gov (indexed) [DOE]

    Requirements (Text Version) Hydrogen Storage Materials Requirements (Text Version) Below is the text version of the webinar titled "Hydrogen Storage Materials Requirements,"...

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

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

    Compression, Storage, and Dispensing Cost Reduction Workshop Addendum Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop Addendum Document states additional...

  12. Catalyzed borohydrides for hydrogen storage

    DOE Patents [OSTI]

    Au, Ming (Augusta, GA)

    2012-02-28T23:59:59.000Z

    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.

  13. Determining the lowest-cost hydrogen delivery mode

    E-Print Network [OSTI]

    Yang, Christopher; Ogden, Joan M

    2007-01-01T23:59:59.000Z

    costs to estimate hydrogen pipeline costs. Davis, CA: ITS-hydrogen. The cost of hydrogen pipeline delivery de- pendshydrogen trucks, and hydrogen pipelines, were devel- oped

  14. 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.

  15. Complex hydrides for hydrogen storage

    DOE Patents [OSTI]

    Zidan, Ragaiy

    2006-08-22T23:59:59.000Z

    A hydrogen storage material and process of forming the material is provided in which complex hydrides are combined under conditions of elevated temperatures and/or elevated temperature and pressure with a titanium metal such as titanium butoxide. The resulting fused product exhibits hydrogen desorption kinetics having a first hydrogen release point which occurs at normal atmospheres and at a temperature between 50.degree. C. and 90.degree. C.

  16. H2A Delivery: Forecourt Compression & Storage Optimization (Part...

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

    H2A Delivery: Forecourt Compression & Storage Optimization (Part II) H2A Delivery: Forecourt Compression & Storage Optimization (Part II) Presentation by Matthew Hooks of TIAX at...

  17. H2A Hydrogen Delivery Infrastructure Analysis Models and Conventional...

    Energy Savers [EERE]

    H2A Hydrogen Delivery Infrastructure Analysis Models and Conventional Pathway Options Analysis Results - Interim Report H2A Hydrogen Delivery Infrastructure Analysis Models and...

  18. Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM...

    Office of Environmental Management (EM)

    Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM) and Results Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM) and Results This presentation by...

  19. Hydrogen Delivery R&D Activities | Department of Energy

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

    R&D Activities Hydrogen Delivery R&D Activities Hydrogen delivery technology may encompass several options over the short and long terms. The transportation and distribution...

  20. Panel 4, Hydrogen Energy Storage Policy Considerations

    Broader source: Energy.gov (indexed) [DOE]

    Energy Storage Policy Considerations Hydrogen Storage Workshop Jeffrey Reed Southern California Gas Company May 15, 2014 0 Methane is a Great Storage Medium 1 SoCalGas' storage...

  1. The U.S. National Hydrogen Storage Project Overview (presentation...

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

    The U.S. National Hydrogen Storage Project Overview (presentation) The U.S. National Hydrogen Storage Project Overview (presentation) Status of Hydrogen Storage Materials R&D...

  2. Virtual Center of Excellence for Hydrogen Storage - Chemical...

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

    Virtual Center of Excellence for Hydrogen Storage - Chemical Hydrides Virtual Center of Excellence for Hydrogen Storage - Chemical Hydrides Presentation from the Hydrogen Storage...

  3. Cryo-compressed Hydrogen Storage. Tobias Brunner

    E-Print Network [OSTI]

    distribution along highways and in remote areas. Gaseous hydrogen distribution via pipelines in onlyCryo-compressed Hydrogen Storage. Tobias Brunner February 15th, 2011, Washington D.C. BMW Hydrogen. Hydrogen Storage Workshop. BMW EfficientDynamics Less emissions. More driving pleasure. #12;BMW Hydrogen

  4. Hydrogen for Energy Storage Analysis Overview (Presentation)

    SciTech Connect (OSTI)

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

    2010-06-01T23:59:59.000Z

    Overview of hydrogen for energy storage analysis presented at the National Hydrogen Association Conference & Expo, May 3-6, 2010, Long Beach, CA.

  5. Hydrogen Storage Materials Database Demonstration Webinar (Text...

    Broader source: Energy.gov (indexed) [DOE]

    Database Demonstration Webinar (Text Version) Hydrogen Storage Materials Database Demonstration Webinar (Text Version) Below is the text version of the webinar titled "Hydrogen...

  6. Sandia National Laboratories: hydrogen-storage materials

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    hydrogen-storage materials ECIS-I2CNER: Hydrogen Infrastructure Research Aids Energy Independence Goal On February 14, 2013, in CRF, Energy, Livermore Valley Open Campus (LVOC),...

  7. Combinatorial Approach for Hydrogen Storage Materials (presentation...

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

    Center of Excellence Recommended Best Practices for the Characterization of Storage Properties of Hydrogen Storage Materials High ThroughputCombinatorial Screening of...

  8. Cost Analysis of Hydrogen Storage Systems

    Broader source: Energy.gov (indexed) [DOE]

    Cost Analysis of 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...

  9. Hydrogen Production & Delivery Sara Dillich

    E-Print Network [OSTI]

    ). 15% solar-to-chemical energy efficiency by microalgae Biomass Gasification Hydrogen Production Cost

  10. Carbon Aerogels for Hydrogen Storage

    SciTech Connect (OSTI)

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

    2008-08-11T23:59:59.000Z

    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.

  11. Webinar: Hydrogen Storage Materials Database Demonstration

    Broader source: Energy.gov [DOE]

    Video recording and text version of the webinar, Hydrogen Storage Materials Database Demonstration, originally presented on December 13, 2011.

  12. Hydrogen Production and Delivery Research

    SciTech Connect (OSTI)

    Iouri Balachov, PhD

    2007-10-15T23:59:59.000Z

    In response to DOE's Solicitation for Grant Applications DE-PS36-03GO93007, 'Hydrogen Production and Delivery Research', SRI International (SRI) proposed to conduct work under Technical Topic Area 5, Advanced Electrolysis Systems; Sub-Topic 5B, High-Temperature Steam Electrolysis. We proposed to develop a prototype of a modular industrial system for low-cost generation of H{sub 2} (<$2/kg) by steam electrolysis with anodic depolarization by CO. Water will be decomposed electrochemically into H{sub 2} and O{sub 2} on the cathode side of a high-temperature electrolyzer. Oxygen ions will migrate through an oxygen-ion-conductive solid oxide electrolyte. Gas mixtures on the cathode side (H{sub 2} + H{sub 2}O) and on the anode side (CO + CO{sub 2}) will be reliably separated by the solid electrolyte. Depolarization of the anodic process will decrease the electrolysis voltage, and thus the electricity required for H{sub 2} generation and the cost of produced H{sub 2}. The process is expected to be at least 10 times more energy-efficient than low-temperature electrolysis and will generate H{sub 2} at a cost of approximately $1-$1.5/kg. The operating economics of the system can be made even more attractive by deploying it at locations where waste heat is available; using waste heat would reduce the electricity required for heating the system. Two critical targets must be achieved: an H{sub 2} production cost below $2/kg, and scalable design of the pilot H{sub 2} generation system. The project deliverables would be (1) a pilot electrolysis system for H{sub 2} generation, (2) an economic analysis, (3) a market analysis, and (4) recommendations and technical documentation for field deployment. DOE was able to provide only 200K out of 1.8M (or about 10% of awarded budget), so project was stopped abruptly.

  13. Chemical Hydrogen Storage R & D | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Hydrogen Storage Chemical Hydrogen Storage R & D Chemical Hydrogen Storage R & D DOE's chemical hydrogen storage R&D is focused on developing low-cost energy-efficient...

  14. CATALYTICALLY ENCHANCED SYSTEMS FOR HYDROGEN STORAGE

    E-Print Network [OSTI]

    to the conversion of the world to a "hydrogen economy" is the problem of onboard hydrogen storage. Despite decadesCATALYTICALLY ENCHANCED SYSTEMS FOR HYDROGEN STORAGE Craig M. Jensen, Dalin Sun, Sesha Sai RamanH/Al and the reverse hydrogenation reactions have been determined through kinetic studies of 2 mol % Ti and Zr doped

  15. Hydrogen storage gets new hope

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm)Hydrogen Storage in Carbon NanotubesTransportationHydrogen

  16. Determining the Lowest-Cost Hydrogen Delivery Mode

    E-Print Network [OSTI]

    Yang, Christopher; Ogden, Joan M

    2008-01-01T23:59:59.000Z

    Costs to Estimate Hydrogen Pipeline Costs. 2004, ITS-Davis:hydrogen. The cost of hydrogen pipeline delivery depends onCosts to Estimate Hydrogen Pipeline Costs. 2004, ITS-Davis:

  17. Implementing a Hydrogen Energy Infrastructure: Storage Options and System Design

    E-Print Network [OSTI]

    Ogden, Joan M; Yang, Christopher

    2005-01-01T23:59:59.000Z

    to International Journal of Hydrogen Energy (November 2005).0528 Implementing a Hydrogen Energy Infrastructure: StorageImplementing a Hydrogen Energy Infrastructure: Storage

  18. Grand Challenge for Basic and Applied Research in Hydrogen Storage...

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

    Storage Grand Challenge for Basic and Applied Research in Hydrogen Storage Presentation from the Hydrogen Storage Pre-Solicitation Meeting held June 19, 2003 in Washington, DC....

  19. Hydrogen-based electrochemical energy storage

    DOE Patents [OSTI]

    Simpson, Lin Jay

    2013-08-06T23:59:59.000Z

    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.

  20. Hydrogen storage with titanium-functionalized graphene

    E-Print Network [OSTI]

    Mashoff, Torge; Tanabe, Shinichi; Hibino, Hiroki; Beltram, Fabio; Heun, Stefan

    2013-01-01T23:59:59.000Z

    We report on hydrogen adsorption and desorption on titanium-covered graphene in order to test theoretical proposals to use of graphene functionalized with metal atoms for hydrogen storage. At room temperature titanium islands grow with an average diameter of about 10 nm. Samples were then loaded with hydrogen, and its desorption kinetics was studied by thermal desorption spectroscopy. We observe the desorption of hydrogen in the temperature range between 400K and 700 K. Our results demonstrate the stability of hydrogen binding at room temperature and show that hydrogen desorbs at moderate temperatures in line with what required for practical hydrogen-storage applications.

  1. Parameter study of a vehicle-scale hydrogen storage system.

    SciTech Connect (OSTI)

    Johnson, Terry Alan; Kanouff, Michael P.

    2010-04-01T23:59:59.000Z

    Sandia National Laboratories has developed a vehicle-scale prototype hydrogen storage system as part of a Work For Others project funded by General Motors. This Demonstration System was developed using the complex metal hydride sodium alanate. For the current work, we have continued our evaluation of the GM Demonstration System to provide learning to DOE's hydrogen storage programs, specifically the new Hydrogen Storage Engineering Center of Excellence. Baseline refueling data during testing for GM was taken over a narrow range of optimized parameter values. Further testing was conducted over a broader range. Parameters considered included hydrogen pressure and coolant flow rate. This data confirmed the choice of design pressure of the Demonstration System, but indicated that the system was over-designed for cooling. Baseline hydrogen delivery data was insufficient to map out delivery rate as a function of temperature and capacity for the full-scale system. A more rigorous matrix of tests was performed to better define delivery capabilities. These studies were compared with 1-D and 2-D coupled multi-physics modeling results. The relative merits of these models are discussed along with opportunities for improved efficiency or reduced mass and volume.

  2. Hydrogen Storage Workshop Argonne National Laboratory

    E-Print Network [OSTI]

    hydrogen, fuel cells, and distribution..." #12;1. Hydrogen Storage 2. Hydrogen Production 3. Fuel Cell Cost barriers Assist Suppliers Independent T&E Advanced Concepts Analysis & Modeling SUPPLIERS PEM fuel cell, Stationary Fuel Cells 5,440 5,500 7,500 2,000 (+36%) HYDROGEN RESEARCH Core Research and Development 14

  3. Hydrogen Storage Engineering Center of Excellence

    Broader source: Energy.gov [DOE]

    The collaborative Hydrogen Storage Engineering Center of Excellence (HSECoE) conducts engineering research, development, and demonstration (RD&D) activities to address the engineering challenges posed by various storage technologies.

  4. Sandia National Laboratories: hydrogen storage options

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    storage options Storing Hydrogen Underground Could Boost Transportation, Energy Security On February 26, 2015, in Capabilities, Center for Infrastructure Research and Innovation...

  5. Hydrogen Storage Engineering Center of Excellence | Department...

    Broader source: Energy.gov (indexed) [DOE]

    Annual Merit Review and Peer Evaluation Meeting, provide an overview of the Hydrogen Storage Engineering Center of Excellence (HSECoE), including projects to design innovative...

  6. Hydrogen Storage Materials Workshop Proceedings Workshop, October...

    Broader source: Energy.gov (indexed) [DOE]

    Program. In addition, the findings of the DOE Workshop on Hydrogen Storage Materials were reviewed. The second presentation described the design of a generic...

  7. Combinatorial Approach for Hydrogen Storage Materials (presentation...

    Broader source: Energy.gov (indexed) [DOE]

    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...

  8. Hydrogen storage composition and method

    DOE Patents [OSTI]

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

    1994-01-01T23:59:59.000Z

    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.

  9. Hydrogen storage composition and method

    DOE Patents [OSTI]

    Heung, Leung K (Aiken, SC); Wicks, George G. (Aiken, SC)

    2003-01-01T23:59:59.000Z

    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)x and MOxRy, where R is an alkyl group of the form C.sub.n H.sub.2n+1, 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 moles 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.

  10. Hydrogen Delivery Analysis Amgad Elgowainy (ANL), Marianne Mintz

    E-Print Network [OSTI]

    Hydrogen Truck Liquid Hydrogen Truck Terminal H2 Transmission Compressor H2 Forecourt Compressor HydrogenHydrogen Delivery Analysis Models Amgad Elgowainy (ANL), Marianne Mintz (ANL), Jerry Gillette (ANL Components Compressed Hydrogen Gas Truck (Tube trailer) Compressed Hydrogen Gas Truck Terminal Liquid

  11. FUEL CELL TECHNOLOGIES PROGRAM Hydrogen Storage

    E-Print Network [OSTI]

    to the rate of refueling today's gasoline vehicles. Using currently available high-pressure tank storage that can achieve similar performance, at a similar cost, as gasoline fuel storage systems. Compressed gasFUEL CELL TECHNOLOGIES PROGRAM Hydrogen Storage Developing safe, reliable, compact, and cost

  12. Increasing Renewable Energy with Hydrogen Storage and Fuel Cell...

    Office of Environmental Management (EM)

    Increasing Renewable Energy with Hydrogen Storage and Fuel Cell Technologies Increasing Renewable Energy with Hydrogen Storage and Fuel Cell Technologies Download presentation...

  13. Final Report for the DOE Chemical Hydrogen Storage Center of...

    Energy Savers [EERE]

    Final Report for the DOE Chemical Hydrogen Storage Center of Excellence Final Report for the DOE Chemical Hydrogen Storage Center of Excellence This technical report describes the...

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

    Broader source: Energy.gov (indexed) [DOE]

    Download presentation slides from the "Hydrogen Storage Materials Requirements to Meet the 2017 On Board Hydrogen Storage Technical Targets" webinar presented by the U.S....

  15. High-capacity hydrogen storage in lithium and sodium amidoboranes...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    capacity hydrogen storage in lithium and sodium amidoboranes. High-capacity hydrogen storage in lithium and sodium amidoboranes. Abstract: A substantial effort worldwide has been...

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

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

    High-ThroughputCombinatorial Techniques in Hydrogen Storage Materials R&D (presentation) High-ThroughputCombinatorial Techniques in Hydrogen Storage Materials R&D (presentation)...

  17. Cryo-Compressed Hydrogen Storage: Performance and Cost Review...

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

    Compressed Hydrogen Storage: Performance and Cost Review Cryo-Compressed Hydrogen Storage: Performance and Cost Review Presented at the R&D Strategies for Compressed,...

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

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

    Materials (presentation) High ThroughputCombinatorial Screening of Hydrogen Storage Materials (presentation) Presented at the U.S. Department of Energy's Hydrogen Storage Meeting...

  19. High-Throughput and Combinatorial Screening of Hydrogen Storage...

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

    High-Throughput and Combinatorial Screening of Hydrogen Storage Materials (presentation) High-Throughput and Combinatorial Screening of Hydrogen Storage Materials (presentation)...

  20. 2013 Hydrogen Compression, Storage, and Dispensing Cost Reduction...

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

    Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop Final Report 2013 Hydrogen Compression, Storage, and Dispensing Cost Reduction Workshop Final Report...

  1. Explanations of FreedomCAR/DOE Hydrogen Storage Technical Targets...

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

    Explanations of FreedomCARDOE Hydrogen Storage Technical Targets Explanations of FreedomCARDOE Hydrogen Storage Technical Targets Summary of FreedomCAR Targets and Basis for...

  2. High Througput Combinatorial Techniques in Hydrogen Storage Materials...

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

    High Througput Combinatorial Techniques in Hydrogen Storage Materials R&D Workshop High Througput Combinatorial Techniques in Hydrogen Storage Materials R&D Workshop Summary of the...

  3. Hydrogen Storage Systems Analysis Meeting: Summary Report, March...

    Broader source: Energy.gov (indexed) [DOE]

    (W. Luo, SNL), chemical hydrogen storage (C. Aardahl, PNNL), and carbon-based materials and sorbents (M. Ringer, NREL) approaches for hydrogen storage. These discussions...

  4. Technical Assessment of Cryo-Compressed Hydrogen Storage Tank...

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

    Cryo-Compressed Hydrogen Storage Tank Systems for Automotive Applications Technical Assessment of Cryo-Compressed Hydrogen Storage Tank Systems for Automotive Applications...

  5. Technical Assessment of Compressed Hydrogen Storage Tank Systems...

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

    Compressed Hydrogen Storage Tank Systems for Automotive Applications Technical Assessment of Compressed Hydrogen Storage Tank Systems for Automotive Applications Technical report...

  6. Prediction of New Hydrogen Storage Compounds and Mixtures

    Broader source: Energy.gov (indexed) [DOE]

    8, 2006 DOE Theory Focus Session on Hydrogen Storage Materials Prediction of New Hydrogen Storage Compounds and Mixtures Vidvuds Ozoli UCLA Research supported by DOE grants No....

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

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

    DOE Theory Focus Session on Hydrogen Storage Materials Summary Report from DOE Theory Focus Session on Hydrogen Storage Materials This report provides a summary of feedback from...

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

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

    Theory Focus Session on Hydrogen Storage Materials Summary Report from Theory Focus Session on Hydrogen Storage Materials This report provides information about the Theory Focus...

  9. Designing Microporus Carbons for Hydrogen Storage Systems

    SciTech Connect (OSTI)

    Alan C. Cooper

    2012-05-02T23:59:59.000Z

    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.

  10. Purchase, Delivery, and Storage of Gases

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)IntegratedSpeedingTechnicalPurchase, Delivery, and Storage of Gases Print ALS users

  11. Hydrogen energy for tomorrow: Advanced hydrogen transport and storage technologies

    SciTech Connect (OSTI)

    NONE

    1995-08-01T23:59:59.000Z

    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.

  12. Liquid Hydrogen Production and Delivery from a Dedicated Wind...

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

    a Dedicated Wind Power Plant Liquid Hydrogen Production and Delivery from a Dedicated Wind Power Plant This May 2012 study assesses the costs and potential for remote renewable...

  13. Panel 2, Geologic Storage of Hydrogen

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

    Security Administration under contract DE-AC04-94AL85000. SAND2014-3954P Geologic Storage of Hydrogen Anna S. Lord Geologist Geotechnology & Engineering Department & Peter H....

  14. Porous polymeric materials for hydrogen storage

    DOE Patents [OSTI]

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

    2013-04-02T23:59:59.000Z

    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.

  15. Executive Summaries for the Hydrogen Storage Materials Center...

    Energy Savers [EERE]

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

  16. Standardized Testing Program for Solid-State Hydrogen Storage Technologies

    SciTech Connect (OSTI)

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

    2012-07-30T23:59:59.000Z

    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.

  17. HGMS: Glasses and Nanocomposites for Hydrogen Storage.

    SciTech Connect (OSTI)

    Lipinska, Kris [PI] [PI; Hemmers, Oliver

    2013-02-17T23:59:59.000Z

    The primary goal of this project is to fabricate and investigate different glass systems and glass-derived nanocrystalline composite materials. These glass-based, two-phased materials will contain nanocrystals that can attract hydrogen and be of potential interest as hydrogen storage media. The glass materials with intrinsic void spaces that are able to precipitate functional nanocrystals capable to attract hydrogen are of particular interest. Proposed previously, but never practically implemented, one of promising concepts for storing hydrogen are micro-containers built of glass and shaped into hollow microspheres. The project expanded this concept to the exploration of glass-derived nanocrystalline composites as potential hydrogen storage media. It is known that the most desirable materials for hydrogen storage do not interact chemically with hydrogen and possess a high surface area to host substantial amounts of hydrogen. Glasses are built of disordered networks with ample void spaces that make them permeable to hydrogen even at room temperature. Glass-derived nanocrystalline composites (two-phased materials), combination of glasses (networks with ample voids) and functional nanocrystals (capable to attract hydrogen), appear to be promising candidates for hydrogen storage media. Key advantages of glass materials include simplicity of preparation, flexibility of composition, chemical durability, non-toxicity and mechanical strength, as well as low production costs and environmental friendliness. This project encompasses a fundamental research into physics and chemistry of glasses and nanocrystalline composite materials, derived from glass. Studies are aimed to answer questions essential for considering glass-based materials and composites as potential hydrogen storage media. Of particular interest are two-phased materials that combine glasses with intrinsic voids spaces for physisorption of hydrogen and nanocrystals capable of chemisorption. This project does not directly address any hydrogen storage technical barriers or targets in terms of numbers. Specifically, hydrogen sorption and desorption tests or kinetics measurements were not part of the project scope. However, the insights gained from these studies could help to answer fundamental questions necessary for considering glass-based materials as hydrogen storage media and could be applied indirectly towards the DOE hydrogen storage technical targets such as system weight and volume, system cost and energy density. Such questions are: Can specific macro-crystals, proven to attract hydrogen when in a macroscopic form (bulk), be nucleated in glass matrices as nanocrystals to create two-phased materials? What are suitable compositions that enable to synthetize glass-based, two-phase materials with nanocrystals that can attract hydrogen via surface or bulk interactions? What are the limits of controlling the microstructure of these materials, especially limits for nanocrystals density and size? Finally, from a technological point of view, the fabrication of glass-derived nanocomposites that we explore is a very simple, fast and inexpensive process that does not require costly or specialized equipment which is an important factor for practical applications.

  18. Executive Summaries Hydrogen Storage Materials Centers of Excellence

    E-Print Network [OSTI]

    of performance metrics for onboard hydrogen storage systems based on comparison with gasoline fueled vehiclesExecutive Summaries for the Hydrogen Storage Materials Centers of Excellence Chemical Hydrogen Storage CoE, Hydrogen Sorption CoE, and Metal Hydride CoE Period of Performance: 2005

  19. Determining the Lowest-Cost Hydrogen Delivery Mode

    E-Print Network [OSTI]

    Yang, Christopher; Ogden, Joan M

    2008-01-01T23:59:59.000Z

    liquid hydrogen pumps cost less than compressors. Further,hydrogen flow rate, though there are slight economies of scale associated with compressorhydrogen storage tanks are needed. Costs for central plant compressors

  20. ALUMINUM HYDRIDE: A REVERSIBLE STORAGE MATERIAL FOR HYDROGEN STORAGE

    SciTech Connect (OSTI)

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

    2009-01-09T23:59:59.000Z

    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.

  1. Final Report: Metal Perhydrides for Hydrogen Storage

    SciTech Connect (OSTI)

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

    2011-07-26T23:59:59.000Z

    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

  2. Panel 2, Hydrogen Delivery in the Natural Gas Pipeline Network

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

    in the Natural Gas Pipeline Network DOE'S HYDROGEN ENERGY STORAGE FOR GRID AND TRANSPORTATION SERVICES WORKSHOP Sacramento, CA May 14, 2014 Brian Weeks Gas Technology Institute 2 2...

  3. Activated aluminum hydride hydrogen storage compositions and uses thereof

    DOE Patents [OSTI]

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

    2010-11-23T23:59:59.000Z

    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.

  4. Porous polymeric materials for hydrogen storage

    DOE Patents [OSTI]

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

    2011-12-13T23:59:59.000Z

    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.

  5. Multi-component hydrogen storage material

    DOE Patents [OSTI]

    Faheem, Syed A. (Huntley, IL); Lewis, Gregory J. (Santa Cruz, CA); Sachtler, J.W. Adriaan (Des Plaines, IL); Low, John J. (Schaumburg, IL); Lesch, David A. (Hoffman Estates, IL); Dosek, Paul M. (Joliet, IL); Wolverton, Christopher M. (Evanston, IL); Siegel, Donald J. (Ann Arbor, MI); Sudik, Andrea C. (Canton, MI); Yang, Jun (Canton, MI)

    2010-09-07T23:59:59.000Z

    A reversible hydrogen storage composition having an empirical formula of: Li.sub.(x+z)N.sub.xMg.sub.yB.sub.zH.sub.w where 0.4.ltoreq.x.ltoreq.0.8; 0.2.ltoreq.y.ltoreq.0.6; 0hydrogen storage compared to binary systems such as MgH.sub.2--LiNH.sub.2.

  6. Hydrogen Storage Systems Anlaysis Working Group Meeting, December...

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

    Anlaysis Working Group Meeting, December 12, 2006 Hydrogen Storage Systems Anlaysis Working Group Meeting, December 12, 2006 This document provides a summary of the Hydrogen...

  7. Sandia National Laboratories: cost-effective hydrogen storage

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    cost-effective hydrogen storage Storing Hydrogen Underground Could Boost Transportation, Energy Security On February 26, 2015, in Capabilities, Center for Infrastructure Research...

  8. Hydrogen Storage Systems Analysis Working Group Meeting: Summary...

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

    Summary of June 11, 2008, biannual meeting of the Hydrogen Storage Systems Analysis Working Group. ssawgsummaryreport0608.pdf More Documents & Publications Hydrgoen Storage...

  9. Grand Challenge for Basic and Applied Research in Hydrogen Storage...

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

    Storage: Statement of Objectives Grand Challenge for Basic and Applied Research in Hydrogen Storage: Statement of Objectives Statement of objectives for the Grand Challenge for...

  10. Nanomaterials for Hydrogen Storage Applications: A Review

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Niemann, Michael U.; Srinivasan, Sesha S.; Phani, Ayala R.; Kumar, Ashok; Goswami, D. Yogi; Stefanakos, Elias K.

    2008-01-01T23:59:59.000Z

    Nanomaterials have attracted great interest in recent years because of the unusual mechanical, electrical, electronic, optical, magnetic and surface properties. The high surface/volume ratio of these materials has significant implications with respect to energy storage. Both the high surface area and the opportunity for nanomaterial consolidation are key attributes of this new class of materials for hydrogen storage devices. Nanostructured systems including carbon nanotubes, nano-magnesium based hydrides, complex hydride/carbon nanocomposites, boron nitride nanotubes,TiS2/MoS2nanotubes, alanates, polymer nanocomposites, and metal organic frameworks are considered to be potential candidates for storing large quantities of hydrogen. Recent investigations have shown that nanoscale materials maymoreoffer advantages if certain physical and chemical effects related to the nanoscale can be used efficiently. The present review focuses the application of nanostructured materials for storing atomic or molecular hydrogen. The synergistic effects of nanocrystalinity and nanocatalyst doping on the metal or complex hydrides for improving the thermodynamics and hydrogen reaction kinetics are discussed. In addition, various carbonaceous nanomaterials and novel sorbent systems (e.g. carbon nanotubes, fullerenes, nanofibers, polyaniline nanospheres and metal organic frameworks etc.) and their hydrogen storage characteristics are outlined.less

  11. Vacancy Announcements Posted for Hydrogen Production and Delivery Program

    Broader source: Energy.gov [DOE]

    The Fuel Cell Technologies Office has posted two vacancy announcements for a position to serve as Program Manager for the Hydrogen Production and Delivery Program in the DOE EERE Fuel Cell Technologies Office. The closing date is October 28, 2014.

  12. Hydrogen Delivery Analysis Plus Meeting: DTT, STT, HPTT, Other...

    Broader source: Energy.gov (indexed) [DOE]

    Assumes 2005 delivery technologies * We can insert our Research Targets to see the impact Hydrogen Plants can be Located Relatively Near the Market demand Nearly all areas East of...

  13. DOE Hydrogen Delivery High-Pressure Tanks and Analysis Project...

    Broader source: Energy.gov (indexed) [DOE]

    the DOE Hydrogen Delivery High-Pressure Tanks and Analysis Project Review Meeting at Argonne National Laboratory. The purpose of the meeting was to review the progress and plans...

  14. Systems Engineering of Chemical Hydrogen Storage, Pressure Vessel and Balance of Plant for Onboard Hydrogen Storage

    SciTech Connect (OSTI)

    Brooks, Kriston P.; Simmons, Kevin L.; Weimar, Mark R.

    2014-09-02T23:59:59.000Z

    This is the annual report for the Hydrogen Storage Engineering Center of Excellence project as required by DOE EERE's Fuel Cell Technologies Office. We have been provided with a specific format. It describes the work that was done with cryo-sorbent based and chemical-based hydrogen storage materials. Balance of plant components were developed, proof-of-concept testing performed, system costs estimated, and transient models validated as part of this work.

  15. Doped Carbon Nanotubes for Hydrogen Storage Ragaiy Zidan

    E-Print Network [OSTI]

    hydrogen storage system is expected to be simple to engineer and tremendously safer. Carbon nanotubesDoped Carbon Nanotubes for Hydrogen Storage Ragaiy Zidan Savannah River Technology Center Savannah-capacity hydrogen storage material. The final product should have favorable thermodynamics and kinetics

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

    E-Print Network [OSTI]

    applications. The IPHE (International Partnership for the Hydrogen Economy) safety program to assess storageHydrogen 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

  17. H2A Delivery Models and Results

    Broader source: Energy.gov (indexed) [DOE]

    Single delivery mode - 100 kgd or 1500 kgd forecourts * Delivery mode defined by user - Pipeline with geologic storage - Liquid hydrogen (LH2) via terminal and truck - Compressed...

  18. Hydrogen Storage | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterEnergyGlossary ofHome Energy Score Home EnergyHomeHydrogen

  19. Hydrogen Storage Materials Database Demonstration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a r r c c|

  20. Hydrogen Storage in Metal-Organic Frameworks

    SciTech Connect (OSTI)

    Omar M. Yaghi

    2012-04-26T23:59:59.000Z

    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.

  1. Durability study of a vehicle-scale hydrogen storage system.

    SciTech Connect (OSTI)

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

    2010-11-01T23:59:59.000Z

    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.

  2. An Assessment of the Near-Term Costs of Hydrogen Refueling Stations and Station Components

    E-Print Network [OSTI]

    Lipman, T E; Weinert, Jonathan X.

    2006-01-01T23:59:59.000Z

    hydrogen storage Hydrogen pipeline Gas meter Compressedbuilt near an existing hydrogen pipeline have the advantagetruck delivery. A hydrogen pipeline already exists between

  3. Metastable Metal Hydrides for Hydrogen Storage

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Graetz, Jason

    2012-01-01T23:59:59.000Z

    The possibility of using hydrogen as a reliable energy carrier for both stationary and mobile applications has gained renewed interest in recent years due to improvements in high temperature fuel cells and a reduction in hydrogen production costs. However, a number of challenges remain and new media are needed that are capable of safely storing hydrogen with high gravimetric and volumetric densities. Metal hydrides and complex metal hydrides offer some hope of overcoming these challenges; however, many of the high capacity reversible hydrides exhibit a large endothermic decomposition enthalpy making it difficult to release the hydrogen at low temperatures. Onmorethe other hand, the metastable hydrides are characterized by a low reaction enthalpy and a decomposition reaction that is thermodynamically favorable under ambient conditions. The rapid, low temperature hydrogen evolution rates that can be achieved with these materials offer much promise for mobile PEM fuel cell applications. However, a critical challenge exists to develop new methods to regenerate these hydrides directly from the reactants and hydrogen gas. This spotlight paper presents an overview of some of the metastable metal hydrides for hydrogen storage and a few new approaches being investigated to address the key challenges associated with these materials.less

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

    SciTech Connect (OSTI)

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

    2009-11-16T23:59:59.000Z

    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.

  5. DOE Hydrogen and Fuel Cells Program Record 5037: Hydrogen Storage Materials- 2004 vs. 2006

    Broader source: Energy.gov [DOE]

    This program record from the Department of Energy's Hydrogen and Fuel Cells Program provides information about hydrogen storage materials (2004 vs. 2006).

  6. Cryocompressed Hydrogen Storage and Liquid Delivery

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: Theof"Wave theJuly 30,Crafty Gifts for theof EnergyRev.

  7. Alane for Hydrogen Storage and Delivery

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWP TWP RelatedCellulase C. bescii CelA, adefault SignYear JanAlane for

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

    SciTech Connect (OSTI)

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

    2011-03-28T23:59:59.000Z

    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.

  9. Analysis of Cost-Effective Off-Board Hydrogen Storage and Refueling Stations

    SciTech Connect (OSTI)

    Ted Barnes; William Liss

    2008-11-14T23:59:59.000Z

    This report highlights design and component selection considerations for compressed gas hydrogen fueling stations operating at 5000 psig or 350 bar. The primary focus is on options for compression and storage in terms of practical equipment options as well as various system configurations and how they influence delivery performance and station economics.

  10. Gaseous Hydrogen Delivery Breakout - Strategic Directions for...

    Broader source: Energy.gov (indexed) [DOE]

    System Issues: need to assess delivery options in context of total system Materials: corrosion, H2 permeability Construction: welding, joining Maintenance and Operation: leak...

  11. Amineborane Based Chemical Hydrogen Storage - Final Report

    SciTech Connect (OSTI)

    Sneddon, Larry G.

    2011-04-21T23:59:59.000Z

    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.

  12. Improvements to Hydrogen Delivery Scenario Analysis Model (HDSAM...

    Broader source: Energy.gov (indexed) [DOE]

    for 3 pathways with single mode. conditioning and storage are at or adjacent to Liquid Hydrogen (LH) Truck H2 Production 100 or 1500 kgd Compressed H2 (CH) Truck H2 Production...

  13. 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

  14. Report on Hydrogen Storage Panel Findings in DOE-BES Sponsored...

    Broader source: Energy.gov (indexed) [DOE]

    Basic Energy Sciences Basic Energy Sciences DOEEERE Hydrogen Storage Pre-Solicitation Meeting, June 19, 2003 Report on Hydrogen Storage Panel Findings in Report on Hydrogen...

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

    E-Print Network [OSTI]

    of hydrogen storage systems, reductions in cost, and increased compatibility with available and forecasted as an automotive fuel. However, the lack of convenient and cost-effective hydrogen storage, particularly for an on market for cost-effective and efficient high-pressure hydrogen storage systems. The world's premier

  16. Theoretical Studies of Hydrogen Storage Alloys.

    SciTech Connect (OSTI)

    Jonsson, Hannes

    2012-03-22T23:59:59.000Z

    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.

  17. Chemical Hydride Slurry for Hydrogen Production and Storage

    SciTech Connect (OSTI)

    McClaine, Andrew W.

    2008-09-30T23:59:59.000Z

    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

  18. Hydrogen fuel closer to reality because of storage advances

    E-Print Network [OSTI]

    - 1 - Hydrogen fuel closer to reality because of storage advances March 21, 2012 Drive toward attractive fuel for vehicles or other transportation modes. Researchers revealed the new single-stage method as a "chemical storage tank" for hydrogen fuel. An ammonia borane system could allow hydrogen to be easily

  19. NREL: Hydrogen and Fuel Cells Research - Hydrogen Storage

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy: Grid Integration NREL isData and ResourcesEnergyHydrogen Storage

  20. Hydrogen Storage - Current Technology | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To:Department ofOral Testimony ofMonitoring,HydrogenofHydrogen storage is

  1. Hydrogen Storage Fact Sheet | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To:Department ofOral Testimony ofMonitoring,HydrogenofHydrogen storage

  2. Hydrogen Storage Challenges | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe SolarContaminationCurrent Technology » Hydrogen Storage

  3. Hydrogen Energy Storage for Grid and Transportation Services...

    Office of Environmental Management (EM)

    1, Towards Sustainable Energy Systems: The Role of Large-Scale Hydrogen Storage in Germany, Hanno Butsch, NOW GmbH Panel 1, Hawaii Hydrogen Projects Status and Lessons Learned,...

  4. Technical Assessment of Organic Liquid Carrier Hydrogen Storage...

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

    usable hydrogen. The results were compared to DOE's 2010, 2017, and ultimate full fleet hydrogen storage targets. The off-board performance including the Well-to-Tank and...

  5. Hydrogen storage of energy for small power supply systems

    E-Print Network [OSTI]

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

    2005-01-01T23:59:59.000Z

    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 ...

  6. Hydrogen Storage Technologies: Long-Term Commercialization Approach...

    Broader source: Energy.gov (indexed) [DOE]

    Presented at the NREL Hydrogen and Fuel Cell Manufacturing R&D Workshop in Washington, DC, August 11-12, 2011. Hydrogen Storage Technologies: Long-Term Commercialization Approach...

  7. Final Report - Hydrogen Delivery Infrastructure Options Analysis

    Broader source: Energy.gov (indexed) [DOE]

    Hydrogen from Wind and Competing Sources", Conference Paper NRELCP-620-38138, May 2005 7 Smith, Steven J., et.a., (Battelle Memorial Institute, College Park, Maryland), "Near-Term...

  8. Hydrogen Storage Materials Workshop Proceedings, August 14th...

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

    Proceedings, August 14th and 15th, 2002 Hydrogen Storage Materials Workshop Proceedings, August 14th and 15th, 2002 A workshop was held to identify on-board storage technical...

  9. Modular Energy Storage System for Hydrogen Fuel Cell Vehicles

    SciTech Connect (OSTI)

    Janice Thomas

    2010-05-31T23:59:59.000Z

    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.

  10. Hydrogen Storage Systems Analysis Meeting: Summary Report, March...

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

    Meeting: Summary Report, March 29, 2005 Hydrogen Storage Systems Analysis Meeting: Summary Report, March 29, 2005 This report highlights DOE's systems analysis work related to...

  11. Hydrogen Storage Systems Analysis Working Group Meeting: Summary...

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

    to bring together the DOE research community involved in systems analysis of hydrogen storage materials and processes. ssawgsummaryreport.pdf More Documents & Publications...

  12. Hydrogen Storage Materials Workshop Proceedings, August 14th...

    Broader source: Energy.gov (indexed) [DOE]

    molecular sieve MCM-48 impregnated with sucrose and then pyrolyzed. * Silica dioxide aerogels and xerogels have not been explored as hydrogen storage materials. * Other mesoporous...

  13. The U.S. National Hydrogen Storage Project Overview (presentation...

    Broader source: Energy.gov (indexed) [DOE]

    Examples of Hydrogen Storage Collaboration NSF- proposal review in process (507) NIST- neutron scattering U.S. Department of Energy Summary We need to accelerate the pace of...

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

    Broader source: Energy.gov (indexed) [DOE]

    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...

  15. DOE Materials-Based Hydrogen Storage Summit: Defining Pathways...

    Broader source: Energy.gov (indexed) [DOE]

    and Presentations Meeting Agenda Attendee List Metal Hydrides, Theodore Motyka, Savannah River National Laboratory Engineering an Adsorbent-Based Hydrogen Storage System: What...

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

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

    to Meet the 2017 On Board Hydrogen Storage Technical Targets Donald Anton Savannah River National Laboratory Troy Semelsberger Don Siegel Los Alamos National Laboratory...

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

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

    Materials: UOP Approaches High ThroughputCombinatorial Screening of Hydrogen Storage Materials: UOP Approaches Presentation by Adriaan Sachtler from the High Throughput...

  18. Thermodynamic Guidelines for the Prediction of Hydrogen Storage...

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

    Thermodynamic Guidelines for the Prediction of Hydrogen Storage Reactions and Their Application to Destabillzed Hydride Mixtures Thermodynamic Guidelines for the Prediction of...

  19. Hydrogen Storage R&D Activities | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    liquid hydrogen storage, improved insulated-pressure vessels are being investigated. Materials research is focused on developing and evaluating advanced solid-state materials. In...

  20. Hydrogen Storage in Wind Turbine Towers: Cost Analysis and Conceptual...

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

    in Wind Turbine Towers: Cost Analysis and Conceptual Design Hydrogen Storage in Wind Turbine Towers: Cost Analysis and Conceptual Design Preprint 34851.pdf More Documents &...

  1. Hydrogen Storage Systems Analysis Working Group Meeting: Summary...

    Broader source: Energy.gov (indexed) [DOE]

    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...

  2. Hydrogen storage materials and method of making by dry homogenation

    DOE Patents [OSTI]

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

    2002-01-01T23:59:59.000Z

    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.

  3. Technical Assessment: Cryo-Compressed Hydrogen Storage for Vehicular...

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

    with input from Salvador Aceves (Lawrence Livermore National Lab) and Tobias Brunner (BMW). Technical Assessment: Cryo-Compressed Hydrogen Storage for Vehicular Applications...

  4. Proton Delivery and Removal in [Ni(PR2NR?2)2]2+ Hydrogen...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Delivery and Removal in Ni(PR2NR?2)22+ Hydrogen Production and Oxidation Catalysts. Proton Delivery and Removal in Ni(PR2NR?2)22+ Hydrogen Production and Oxidation...

  5. First-Principles Study of the Li-Na-Ca-N-H System: Compound Structures and Hydrogen-Storage Properties

    E-Print Network [OSTI]

    Teeratchanan, Pattanasak

    2012-01-01T23:59:59.000Z

    system for reversible hydrogen storage, J. Alloys Comp, volCompound structures and hydrogen-storage properties, J.compounds: Application to hydrogen storage materials, Phys.

  6. Hydrogen Station Compression, Storage, and Dispensing Technical Status and Costs: Systems Integration

    SciTech Connect (OSTI)

    Parks, G.; Boyd, R.; Cornish, J.; Remick, R.

    2014-05-01T23:59:59.000Z

    At the request of the U.S. Department of Energy Fuel Cell Technologies Office (FCTO), the National Renewable Energy Laboratory commissioned an independent review of hydrogen compression, storage, and dispensing (CSD) for pipeline delivery of hydrogen and forecourt hydrogen production. The panel was asked to address the (1) cost calculation methodology, (2) current cost/technical status, (3) feasibility of achieving the FCTO's 2020 CSD levelized cost targets, and to (4) suggest research areas that will help the FCTO reach its targets. As the panel neared the completion of these tasks, it was also asked to evaluate CSD costs for the delivery of hydrogen by high-pressure tube trailer. This report details these findings.

  7. Energy Storage & Delivery The goal of this project is to deliver measurement methods specific to

    E-Print Network [OSTI]

    Energy Storage & Delivery Materials The goal of this project is to deliver measurement methods specific to polymeric and organic materials needed in next generation energy storage and delivery. · The NIST team is works closely with leaders in the energy storage and delivery field, including General

  8. BIMETALLIC LITHIUM BOROHYDRIDES TOWARD REVERSIBLE HYDROGEN STORAGE

    SciTech Connect (OSTI)

    Au, M.

    2010-10-21T23:59:59.000Z

    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.

  9. Hydrogen Storage Properties of New Hydrogen-Rich BH3NH3-Metal...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Storage Properties of New Hydrogen-Rich BH3NH3-Metal Hydride (TiH2, ZrH2, MgH2, andor CaH2) Composite Systems. Hydrogen Storage Properties of New Hydrogen-Rich BH3NH3-Metal...

  10. Overview of geologic storage of natural gas with an emphasis on assessing the feasibility of storing hydrogen.

    SciTech Connect (OSTI)

    Lord, Anna Snider

    2009-09-01T23:59:59.000Z

    In many regions across the nation geologic formations are currently being used to store natural gas underground. Storage options are dictated by the regional geology and the operational need. The U.S. Department of Energy (DOE) has an interest in understanding theses various geologic storage options, the advantages and disadvantages, in the hopes of developing an underground facility for the storage of hydrogen as a low cost storage option, as part of the hydrogen delivery infrastructure. Currently, depleted gas/oil reservoirs, aquifers, and salt caverns are the three main types of underground natural gas storage in use today. The other storage options available currently and in the near future, such as abandoned coal mines, lined hard rock caverns, and refrigerated mined caverns, will become more popular as the demand for natural gas storage grows, especially in regions were depleted reservoirs, aquifers, and salt deposits are not available. The storage of hydrogen within the same type of facilities, currently used for natural gas, may add new operational challenges to the existing cavern storage industry, such as the loss of hydrogen through chemical reactions and the occurrence of hydrogen embrittlement. Currently there are only three locations worldwide, two of which are in the United States, which store hydrogen. All three sites store hydrogen within salt caverns.

  11. Hydrogen Delivery Related Links | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe SolarContamination Detector Workshop Hydrogen

  12. Report on Hydrogen Storage Panel Findings in DOE-BES Sponsored...

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

    Hydrogen Storage Panel Findings in DOE-BES Sponsored Workshop on Basic Research for Hydrogen Production, Storage and Use Report on Hydrogen Storage Panel Findings in DOE-BES...

  13. Hydrogen Storage Testing and Analysis R&D | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    DOE R&D Activities Hydrogen Storage Testing and Analysis R&D Hydrogen Storage Testing and Analysis R&D DOE's hydrogen storage R&D activities include testing, analysis, and...

  14. Hydrogen Peroxide Storage in Small Sealed Tanks

    SciTech Connect (OSTI)

    Whitehead, J.

    1999-10-20T23:59:59.000Z

    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.

  15. Materials Solutions for Hydrogen Delivery in Pipelines

    SciTech Connect (OSTI)

    Ningileri, Shridas T.; Boggess, Todd A; Stalheim, Douglas

    2013-01-02T23:59:59.000Z

    The main objective of the study is as follows: Identify steel compositions/microstructures suitable for construction of new pipeline infrastructure and evaluate the potential use of the existing steel pipeline infrastructure in high pressure gaseous hydrogen applications. The microstructures of four pipeline steels were characterized and tensile testing was conducted in gaseous hydrogen and helium at pressures of 5.5 MPa (800 psi), 11 MPa (1600 psi) and 20.7 MPa (3000 psi). Based on reduction of area, two of the four steels that performed the best across the pressure range were selected for evaluation of fracture and fatigue performance in gaseous hydrogen at 5.5 MPa (800 psi) and 20.7 MPa (3000 psi). The basic format for this phase of the study is as follows: Microstructural characterization of volume fraction of phases in each alloy; Tensile testing of all four alloys in He and H{sub 2} at 5.5 MPa (800 psi), 11 MPa (1600 psi), and 20.7 MPa (3000 psi). RA performance was used to choose the two best performers for further mechanical property evaluation; Fracture testing (ASTM E1820) of two best tensile test performers in H{sub 2} at 5.5 MPa (800 psi) and 20.7 MPa (3000 psi); Fatigue testing (ASTM E647) of two best tensile test performers in H2 at 5.5 MPa (800 psi) and 20.7 MPa (3000 psi) with frequency =1.0 Hz and R-ratio=0.5 and 0.1.

  16. Gaseous Hydrogen Delivery | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To: Congestion StudyForecasting. |October 3,andDepartmentGaseous hydrogen

  17. Hydrogen Delivery Scenario Analysis Model (HDSAM)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe SolarContamination Detector Workshop HydrogenScenario Analysis

  18. Design and evaluation of seasonal storage hydrogen peak electricity supply system

    E-Print Network [OSTI]

    Oloyede, Isaiah Olanrewaju

    2011-01-01T23:59:59.000Z

    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 ...

  19. 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

  20. Electron Charged Graphite-based Hydrogen Storage Material

    SciTech Connect (OSTI)

    Dr. Chinbay Q. Fan; D Manager

    2012-03-14T23:59:59.000Z

    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.

  1. Manufacturing R&D of Onboard Hydrogen Storage Systems for Transportati...

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

    Onboard Hydrogen Storage Systems for Transportation Applications Manufacturing R&D of Onboard Hydrogen Storage Systems for Transportation Applications Background paper prepared for...

  2. Proceedings of the DOE chemical energy storage and hydrogen energy systems contracts review

    SciTech Connect (OSTI)

    Not Available

    1980-02-01T23:59:59.000Z

    Sessions were held on electrolysis-based hydrogen storage systems, hydrogen production, hydrogen storage systems, hydrogen storage materials, end-use applications and system studies, chemical heat pump/chemical energy storage systems, systems studies and assessment, thermochemical hydrogen production cycles, advanced production concepts, and containment materials. (LHK)

  3. Thermodynamics and Kinetics of Phase Transformations in Hydrogen Storage Materials

    SciTech Connect (OSTI)

    Ceder, Gerbrand; Marzari, Nicola

    2011-08-31T23:59:59.000Z

    The aim of this project is to develop and apply computational materials science tools to determine and predict critical properties of hydrogen storage materials. By better understanding the absorption/desorption mechanisms and characterizing their physical properties it is possible to explore and evaluate new directions for hydrogen storage materials. Particular emphasis is on the determination of the structure and thermodynamics of hydrogen storage materials, the investigation of microscopic mechanisms of hydrogen uptake and release in various materials and the role of catalysts in this process. As a team we have decided to focus on a single material, NaAlH{sub 4}, in order to fully be able to study the many aspects of hydrogen storage. We have focused on phase stability, mass transport and size-dependent reaction mechanisms in this material.

  4. Hydrogen Storage at Lawrence Berkeley National Laboratory

    Broader source: Energy.gov (indexed) [DOE]

    * Fundamental understanding of the complex solid state chemistry of hydrogen absorption and desorption by metals and alloys * Experience in preparing and studying hydrogen...

  5. Combinatorial Approaches for Hydrogen Storage Materials (presentation...

    Broader source: Energy.gov (indexed) [DOE]

    * Difficult to estimate the amount of hydrogen Thin-Film Nanocalorimetry of Hydrogen Absorption Calorimetric signatures: H (absorption) -> exothermic H (desorption) ->...

  6. FINAL REPORT: Room Temperature Hydrogen Storage in Nano-Confined Liquids

    SciTech Connect (OSTI)

    VAJO, JOHN

    2014-06-12T23:59:59.000Z

    DOE continues to seek solid-state hydrogen storage materials with hydrogen densities of ?6 wt% and ?50 g/L that can deliver hydrogen and be recharged at room temperature and moderate pressures enabling widespread use in transportation applications. Meanwhile, development including vehicle engineering and delivery infrastructure continues for compressed-gas hydrogen storage systems. Although compressed gas storage avoids the materials-based issues associated with solid-state storage, achieving acceptable volumetric densities has been a persistent challenge. This project examined the possibility of developing storage materials that would be compatible with compressed gas storage technology based on enhanced hydrogen solubility in nano-confined liquid solvents. These materials would store hydrogen in molecular form eliminating many limitations of current solid-state materials while increasing the volumetric capacity of compressed hydrogen storage vessels. Experimental methods were developed to study hydrogen solubility in nano-confined liquids. These methods included 1) fabrication of composites comprised of volatile liquid solvents for hydrogen confined within the nano-sized pore volume of nanoporous scaffolds and 2) measuring the hydrogen uptake capacity of these composites without altering the composite composition. The hydrogen storage capacities of these nano-confined solvent/scaffold composites were compared with bulk solvents and with empty scaffolds. The solvents and scaffolds were varied to optimize the enhancement in hydrogen solubility that accompanies confinement of the solvent. In addition, computational simulations were performed to study the molecular-scale structure of liquid solvent when confined within an atomically realistic nano-sized pore of a model scaffold. Confined solvent was compared with similar simulations of bulk solvent. The results from the simulations were used to formulate a mechanism for the enhanced solubility and to guide the experiments. Overall, the combined experimental measurements and simulations indicate that hydrogen storage based on enhanced solubility in nano-confined liquids is unlikely to meet the storage densities required for practical use. Only low gravimetric capacities of < 0.5 wt% were achieved. More importantly, solvent filled scaffolds had lower volumetric capacities than corresponding empty scaffolds. Nevertheless, several of the composites measured did show significant (>~ 5x) enhanced hydrogen solubility relative to bulk solvent solubility, when the hydrogen capacity was attributed only to dissolution in the confined solvent. However, when the hydrogen capacity was compared to an empty scaffold that is known to store hydrogen by surface adsorption on the scaffold walls, including the solvent always reduced the hydrogen capacity. For the best composites, this reduction relative to an empty scaffold was ~30%; for the worst it was ~90%. The highest capacities were obtained with the largest solvent molecules and with scaffolds containing 3- dimensionally confined pore geometries. The simulations suggested that the capacity of the composites originated from hydrogen adsorption on the scaffold pore walls at sites not occupied by solvent molecules. Although liquid solvent filled the pores, not all of the adsorption sites on the pore walls were occupied due to restricted motion of the solvent molecules within the confined pore space.

  7. Hydrogen Storage in Ammonia and Aminoborane Complexes

    E-Print Network [OSTI]

    -board reformation to liberate hydrogen autothermal reformation is one approach #12;Chemical Hydrides (CHs

  8. Hydrogen Delivery Pipeline Working Group Workshop September 25-26, 2007 Center for Hydrogen Research, Aiken, GA

    E-Print Network [OSTI]

    Hydrogen Delivery Pipeline Working Group Workshop September 25-26, 2007 Center for Hydrogen..................................................................................................... 1. Introduction The DOE Hydrogen Pipeline Working Group (PWG) met on September 25-26, 2007 challenges and future goals for hydrogen pipeline research and development (R&D). One of the near-term goals

  9. H2A Delivery: H2A Delivery

    E-Print Network [OSTI]

    forecourt Number of dispensers Capacity of hydrogen storage Size of hydrogen compressor or pump Optimize (Part II) Storage Optimization (Part II) Hydrogen Delivery Analysis Meeting May 8-9, 2007 Columbia. 408-517-1550 Reference: D0348 © 2007 TIAX LLC #12;Objectives Define the attributes of a hydrogen

  10. Low-Cost Precursors to Novel Hydrogen Storage Materials

    SciTech Connect (OSTI)

    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

    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

  11. High capacity stabilized complex hydrides for hydrogen storage

    DOE Patents [OSTI]

    Zidan, Ragaiy; Mohtadi, Rana F; Fewox, Christopher; Sivasubramanian, Premkumar

    2014-11-11T23:59:59.000Z

    Complex hydrides based on Al(BH.sub.4).sub.3 are stabilized by the presence of one or more additional metal elements or organic adducts to provide high capacity hydrogen storage material.

  12. Hydrogen Energy Storage: Grid and Transportation Services Workshop...

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

    Workshop Structure 1 02 Hydrogen Energy Storage: Grid and Transportation Services NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and...

  13. Hydrogen Storage Workshop Walter Podolski, Argonne National Laboratory

    E-Print Network [OSTI]

    Hydrogen Storage Workshop Summary Walter Podolski, Argonne National Laboratory JoAnn Milliken, DOE August 14-15, 2002 #12; Argonne National Laboratory August 14-15, 2002 Attendees 49 DOE

  14. U.S. Department of Energy Hydrogen Storage Cost Analysis

    SciTech Connect (OSTI)

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

    2013-03-11T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

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

    2013-01-01T23:59:59.000Z

    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.

  16. DEVELOPMENT OF DOPED NANOPOROUS CARBONS FOR HYDROGEN STORAGE

    SciTech Connect (OSTI)

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

    2010-03-31T23:59:59.000Z

    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.

  17. Optimization of compression and storage requirements at hydrogen refueling stations.

    SciTech Connect (OSTI)

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

    2008-01-01T23:59:59.000Z

    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.

  18. Hydrogen Storage DOI: 10.1002/anie.200801163

    E-Print Network [OSTI]

    . To eliminate the need for a heavy and expensive cooling system, new ways of increasing the hydrogen affinity candidates as an energy carrier of the future because of its high energy content and clean burning, is the development of a safe and practical storage system. As opposed to stationary storage, in which the tank volume

  19. Storage, generation, and use of hydrogen

    DOE Patents [OSTI]

    McClaine, Andrew W.; Rolfe, Jonathan L.; Larsen, Christopher A.; Konduri, Ravi K.

    2006-05-30T23:59:59.000Z

    A composition comprising a carrier liquid; a dispersant; and a chemical hydride. The composition can be used in a hydrogen generator to generate hydrogen for use, e.g., as a fuel. A regenerator recovers elemental metal from byproducts of the hydrogen generation process.

  20. Characterization and High Throughput Analysis of Metal Hydrides for Hydrogen Storage

    E-Print Network [OSTI]

    Barcelo, Steven James

    2009-01-01T23:59:59.000Z

    Hydrides for Energy Storage. A.F. Andresen and A.J. Maeland,Metal Hydrides for Hydrogen Storage by Steven James BarceloMetal Hydrides for Hydrogen Storage by Steven James Barcelo

  1. Metal-Containing Organic and Carbon Aerogels for Hydrogen Storage

    SciTech Connect (OSTI)

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

    2005-01-10T23:59:59.000Z

    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.

  2. Determining the lowest-cost hydrogen delivery mode

    E-Print Network [OSTI]

    Yang, Christopher; Ogden, Joan M

    2007-01-01T23:59:59.000Z

    costs to estimate hydrogen pipeline costs. Davis, CA: ITS-hydrogen trucks, and hydrogen pipelines, were devel- opedFor large amounts of hydrogen, pipeline transmission is pre-

  3. Determining the lowest-cost hydrogen delivery mode

    E-Print Network [OSTI]

    Yang, Christopher; Ogden, Joan M

    2007-01-01T23:59:59.000Z

    current lack of hydrogen infrastructure. Hydrogen fuel isof developing hydrogen infrastructure systems. This analysisa refueling infrastructure for hydrogen vehicles: a southern

  4. Determining the Lowest-Cost Hydrogen Delivery Mode

    E-Print Network [OSTI]

    Yang, Christopher; Ogden, Joan M

    2008-01-01T23:59:59.000Z

    current lack of hydrogen infrastructure. Hydrogen fuel isof developing hydrogen infrastructure systems. This analysisa Refueling Infrastructure for Hydrogen Vehicles: A Southern

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

    SciTech Connect (OSTI)

    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

    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.

  6. Combinatorial approaches for hydrogen storage materials

    E-Print Network [OSTI]

    on GaN Electric contacts e-beam Electrical measurements * Fe(1-x)Gax (x=0-0.4) Magnetostriction of Hydrogen Absorption Calorimetric signatures: H (absorption) -> exothermic H (desorption) -> endothermic

  7. Thermodynamically Tuned Nanophase Materials for reversible Hydrogen storage

    SciTech Connect (OSTI)

    Ping Liu; John J. Vajo

    2010-02-28T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

    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

    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.

  9. The development of a fullerene based hydrogen storage system

    SciTech Connect (OSTI)

    Brosha, E.L.; Davey, J.R.; Garzon, F.H.; Gottesfeld, S.

    1998-11-01T23:59:59.000Z

    This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). The project objective was to evaluate hydrogen uptake by fullerene substrates and to probe the potential of the hydrogen/fullerene system for hydrogen fuel storage. As part of this project, the authors have completed and tested a fully automated, computer controlled system for measuring hydrogen uptake that is capable of handling both a vacuum of 1 x 10{sup -6} torr and pressures greater than 200 bars. The authors have first established conditions for significant uptake of hydrogen by fullerenes. Subsequently, hydrogenation and dehydrogenation of pure and catalyst-doped C60 was further studied to probe suitability for hydrogen storage applications. C60 {center_dot} H18.7 was prepared at 100 bar H2 and 400 C, corresponding to hydrogen uptake of 2.6 wt%. Dehydrogenation of C60 {center_dot} H18.7 was studied using thermogravimetric and powder x-ray diffraction analysis. The C60 {center_dot} H18.7 molecule was found to be stable up to 430 C in Ar, at which point the release of hydrogen took place simultaneously with the collapse of the fullerene structure. X-ray diffraction analysis performed on C60 {center_dot} H18.7 samples dehydrogenated at 454 C, 475 C, and 600 C showed an increasing volume fraction of amorphous material due to randomly oriented, single-layer graphine sheets. Evolved gas analysis using gas chromatography and mass spectroscopy confirmed the presence of both H{sub 2} and methane upon dehydrogenation, indicating decomposition of the fullerene. The remaining carbon could not be re-hydrogenated. These results provide the first complete evidence for the irreversible nature of fullerene hydrogenation and for limitations imposed on the hydrogenation/dehydrogenation cycle by the limited thermal stability of the molecular crystal of fullerene.

  10. Metal-assisted hydrogen storage on Pt-decorated single-walled carbon nanohorns

    E-Print Network [OSTI]

    Geohegan, David B.

    to a future hydrogen economy is the lack of suitable on-board hydrogen storage media, which urgently requiresMetal-assisted hydrogen storage on Pt-decorated single-walled carbon nanohorns Yun Liu a,b,*, Craig dissociation of hydrogen molecules by metal nanoparticles and spillover of atomic hydrogen onto various

  11. Collaborative research on amine borane regeneration and market analysis of hydrogen storage materials.

    SciTech Connect (OSTI)

    David Schubert

    2010-12-06T23:59:59.000Z

    Amine borane (AB) is a very high capacity hydrogen storage material that meets DOE gravimetric and volumetric targets for on-board delivery of hydrogen for fuel cell vehicles (FCVs). This research helped make process toward the ultimate goal of practical generation of spent AB and added to the understanding of materials and processes required to utilize AB in practical applications. In addition, this work helped to enhance our fundamental understanding of the properties of boron materials now being pursued for new frustrated Lewis pair catalyst systems for activation of hydrogen and carbon dioxide, of interest for carbon capture and fuels production. This project included four primary areas of investigation: (1) synthesis of borate esters for use as amine borane regeneration intermediates, (2) spent ammonia borane fuel generation and analysis, (3) spent fuel digestion for production of borate esters, and (4) worldwide borate resource analysis. Significant progress was made in each of these areas during the two-year course of this project, which involved extensive collaborations with partners in the Center of Excellence for Chemical Hydrogen Storage, and particularly with partners at the Pacific Northwest National Laboratory. Results of the boron resource analysis studies indicate that sufficient boron reserves exist within the United States to meet forecast requirements for a U.S. fleet of hydrogen FCVs and sufficient resources are available worldwide for a global fleet of FCVs.

  12. ALUMINUM HYDRIDE: A REVERSIBLE MATERIAL FOR HYDROGEN STORAGE

    SciTech Connect (OSTI)

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

    2008-12-31T23:59:59.000Z

    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.

  13. ALUMINUM HYDRIDE: A REVERSIBLE MATERIAL FOR HYDROGEN STORAGE

    SciTech Connect (OSTI)

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

    2009-01-09T23:59:59.000Z

    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.

  14. ab5-type hydrogen storage: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    areas: Thermochemical decomposition of SQNG Storage in NH3 & NH3-based complexes 6 Hydrogen Storage CODES & STANDARDS Renewable Energy Websites Summary: L by 2010. 12;4...

  15. Ultrafine Hydrogen Storage Powders - Energy Innovation Portal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin TransitionProgram |FrankUltrafastHydrogen and Fuel Cell Hydrogen

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

    SciTech Connect (OSTI)

    Not Available

    2010-11-01T23:59:59.000Z

    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.

  17. Evaluation of Hydrogen Storage System Characteristics for Light-Duty Vehicle Applications (Poster)

    SciTech Connect (OSTI)

    Thornton, M.; Day, K.; Brooker, A.

    2010-05-01T23:59:59.000Z

    This poster presentation demonstrates an approach to evaluate trade-offs among hydrogen storage system characteristic across several vehicle configurations and estimates the sensitivity of hydrogen storage system improvements on vehicle viability.

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

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

    Energy Theorty Focus Session on Hydrogen Storage Materials An agenda for a four-part, theory-focus session on hydrogen storage materials to identify critical areas, key barriers,...

  19. A Brief Overview of Hydrogen Storage Issues and Needs

    E-Print Network [OSTI]

    A Brief Overview of Hydrogen Storage Issues and Needs George Thomas and Sunita Satyapal Joint-Chair Mei Cai (GM) ­ Materials Properties Modifications Don Siegel (Ford) ­ (Theory/Modeling) Andrea Sudik equilibrium pressure Pressure at 80 C vs. Formation Energy 1 10 100 1000 10000 10 20 30 40 50 60 Hf 2 S = 145

  20. automotive hydrogen storage: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Hydrogen Storage CODES & STANDARDS Renewable Energy Websites Summary: L by 2010. 12;4...

  1. Hydrogen Storage Systems Analysis Working Group Meeting Argonne DC Offices

    E-Print Network [OSTI]

    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 Working Group Meeting December 4, 2007 Argonne DC Offices, L'Enfant Plaza, Washington, DC Meeting

  2. 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.

  3. DOE Targets for Onboard Hydrogen Storage Systems for Light-Duty...

    Broader source: Energy.gov (indexed) [DOE]

    FCT Program's Multiyear Research, Development and Demonstration Plan. targetsonboardhydrostorage.pdf More Documents & Publications Targets for Onboard Hydrogen Storage Systems...

  4. Hollow porous-wall glass microspheres for hydrogen storage

    DOE Patents [OSTI]

    Heung, Leung K. (Aiken, SC); Schumacher, Ray F. (Aiken, SC); Wicks, George G. (Aiken, SC)

    2010-02-23T23:59:59.000Z

    A porous wall hollow glass microsphere is provided having a diameter range of between 1 to 200 microns, a density of between 1.0 to 2.0 gm/cc, a porous-wall structure having wall openings defining an average pore size of between 10 to 1000 angstroms, and which contains therein a hydrogen storage material. The porous-wall structure facilitates the introduction of a hydrogen storage material into the interior of the porous wall hollow glass microsphere. In this manner, the resulting hollow glass microsphere can provide a membrane for the selective transport of hydrogen through the porous walls of the microsphere, the small pore size preventing gaseous or liquid contaminants from entering the interior of the hollow glass microsphere.

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

    E-Print Network [OSTI]

    Caizares, Claudio A.

    evaluation of hydrogen production and storage for a mixed wind-nuclear power plant considering some new : nuclear power plant production (MW) GP : total wind-nuclear power plant production (MW) EP : electrolyzerINTERNATIONAL JOURNAL OF HYDROGEN ENERGY Accepted June 2008 1 HYDROGEN STORAGE FOR MIXED WIND-NUCLEAR

  6. THE JOURNAL OF CHEMICAL PHYSICS 134, 214501 (2011) Nanoconfinement effects on the reversibility of hydrogen storage

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    of hydrogen storage in ammonia borane: A first-principles study Kiseok Chang,1 Eunja Kim,2 Philippe F. Weck,3-state materials capable of storing hydrogen, the NH3BH3 compound called ammonia borane (AB), with an ideal storage2 kg-1 ) density targets specified by the U.S. Department of Energy for on-board hydrogen storage.4

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

    E-Print Network [OSTI]

    of hydrogen storage systems, reductions in cost, and increased compatibility with available and forecasted as an automotive fuel. However, the lack of convenient and cost-effective hydrogen storage, particularly for an onHydrogen Composite Tank Program Principal Investigator: Dr. Neel Sirosh, Director of Fuel Storage

  8. National Hydrogen Storage Project | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently Asked QuestionsDepartment of Energyof Energy U.S.August|DeployedHydrogen

  9. HYDROGEN STORAGE IN NICKEL DOPED MCM-41 Ezgi Dndar Tekkaya1

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    HYDROGEN STORAGE IN NICKEL DOPED MCM-41 Ezgi Dndar Tekkaya1 and Yuda Yrm1 1 Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla, Istanbul, Turkey Hydrogen as an energy carrier of hydrogen results with increasing demand to hydrogen production and storage. Recent studies show

  10. Hydrogen Storage The goal of this project is to develop the metrologies necessary

    E-Print Network [OSTI]

    Hydrogen Storage METALS The goal of this project is to develop the metrologies necessary for rapid, high-throughput measurement of the hydrogen content of novel materials proposed for hydrogen storage to the research community. Objective Impact and Customers · Hydrogen is promoted as a petroleum replacement

  11. Destabilized and catalyzed borohydride for reversible hydrogen storage

    DOE Patents [OSTI]

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

    2012-01-31T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

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

    2009-11-01T23:59:59.000Z

    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).

  13. H2A Delivery Components Model and Analysis

    Broader source: Energy.gov (indexed) [DOE]

    forms Storage Components Delivery Components -Compressed Gas Tube System -Bulk Liquid Hydrogen System -Geologic -Forecourt -Truck - Tube Trailer -Truck - LH2 -Pipeline...

  14. 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]

    Lessing, Paul A. (Idaho Falls, ID)

    2008-07-22T23:59:59.000Z

    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.

  15. Vesicle capture, not delivery, scales up neuropeptide storage in neuroendocrine terminals

    E-Print Network [OSTI]

    Hewes, Randall S.

    Vesicle capture, not delivery, scales up neuropeptide storage in neuroendocrine terminals Dinara terminals that contain few DCVs and many small synaptic vesicles, whereas neuroendocrine neuron termi- nals- tide stores in identified Drosophila cotransmitting and neuroendo- crine terminals. However

  16. Low Cost, High Efficiency, High Pressure Hydrogen Storage

    SciTech Connect (OSTI)

    Mark Leavitt

    2010-03-31T23:59:59.000Z

    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.

  17. DOE Hydrogen and Fuel Cells Program Record 9017: On-Board Hydrogen Storage Systems Projected Performance and Cost Parameters

    Broader source: Energy.gov [DOE]

    This program record from the Department of Energy's Hydrogen and Fuel Cells Program provides information about the projected performance and cost parameters of on-board hydrogen storage systems.

  18. Hydrogen Storage Research and Development Activities | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe SolarContaminationCurrent Technology » HydrogenHydrogen Storage

  19. Hydrogen Storage Needs for Early Motive Fuel Cell Markets

    SciTech Connect (OSTI)

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

    2012-11-01T23:59:59.000Z

    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.

  20. Process for synthesis of ammonia borane for bulk hydrogen storage

    DOE Patents [OSTI]

    Autrey, S Thomas [West Richland, WA; Heldebrant, David J [Richland, WA; Linehan, John C [Richland, WA; Karkamkar, Abhijeet J [Richland, WA; Zheng, Feng [Richland, WA

    2011-03-01T23:59:59.000Z

    The present invention discloses new methods for synthesizing ammonia borane (NH.sub.3BH.sub.3, or AB). Ammonium borohydride (NH.sub.4BH.sub.4) is formed from the reaction of borohydride salts and ammonium salts in liquid ammonia. Ammonium borohydride is decomposed in an ether-based solvent that yields AB at a near quantitative yield. The AB product shows promise as a chemical hydrogen storage material for fuel cell powered applications.

  1. ACCEPTABILITY ENVELOPE FOR METAL HYDRIDE-BASED HYDROGEN STORAGE SYSTEMS

    SciTech Connect (OSTI)

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

    2011-07-18T23:59:59.000Z

    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.

  2. First-Principles Study of the Li-Na-Ca-N-H System: Compound Structures and Hydrogen-Storage Properties

    E-Print Network [OSTI]

    Teeratchanan, Pattanasak

    2012-01-01T23:59:59.000Z

    H. Jujii, Hydrogen desorption properties of Ca-N-H system,structures and hydrogen-storage properties, J. Phys Chem C,Compound Structures and Hydrogen-Storage Properties A thesis

  3. Hydrogen Pathways: Cost, Well-to-Wheels Energy Use, and Emissions for the Current Technology Status of Seven Hydrogen Production, Delivery, and Distribution Scenarios

    SciTech Connect (OSTI)

    Ruth, M.; Laffen, M.; Timbario, T. A.

    2009-09-01T23:59:59.000Z

    Report of levelized cost in 2005 U.S. dollars, energy use, and GHG emission benefits of seven hydrogen production, delivery, and distribution pathways.

  4. Hydrogen Pathways: Cost, Well-to-Wheels Energy Use, and Emissions for the Current Technology Status of Seven Hydrogen Production, Delivery, and Distribution Scenarios

    Fuel Cell Technologies Publication and Product Library (EERE)

    Report of levelized cost in 2005 U.S. dollars, energy use, and GHG emission benefits of seven hydrogen production, delivery, and distribution pathways.

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

    E-Print Network [OSTI]

    Victoria, University of

    storage technology, such as gasoline tanks and batteries, it is important to have fast reaction ratesMathematical 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

  6. Determining the Lowest-Cost Hydrogen Delivery Mode

    E-Print Network [OSTI]

    Yang, Christopher; Ogden, Joan M

    2008-01-01T23:59:59.000Z

    right-of-way (ROW) and installation is assumed to significantly higher for hydrogen distribution (urban) when compared to transmission (

  7. Kinetics Study of Solid Ammonia Borane Hydrogen Release Modeling and Experimental Validation for Chemical Hydrogen Storage

    SciTech Connect (OSTI)

    Choi, Yong-Joon; Ronnebro, Ewa; Rassat, Scot D.; Karkamkar, Abhijeet J.; Maupin, Gary D.; Holladay, Jamelyn D.; Simmons, Kevin L.; Brooks, Kriston P.

    2014-02-24T23:59:59.000Z

    Ammonia borane (AB), NH3BH3, is a promising material for chemical hydrogen storage with 19.6 wt% gravimetric hydrogen capacity of which 16.2 wt% hydrogen can be utilized below 200C. We have investigated the kinetics of hydrogen release from AB and from an AB-methyl cellulose (AB/MC) composite at temperatures of 160-300C using both experiments and modeling. The purpose of our study was to show safe hydrogen release without thermal runaway effects and to validate system model kinetics. AB/MC released hydrogen at ~20C lower than neat AB and at a rate that is two times faster. Based on the experimental results, the kinetics equations were revised to better represent the growth and nucleation process during decomposition of AB. We explored two different reactor concepts; Auger and fixed bed. The current Auger reactor concept turned out to not be appropriate, however, we demonstrated safe self-propagation of the hydrogen release reaction of solid AB/MC in a fixed bed reactor.

  8. Implementing a Hydrogen Energy Infrastructure: Storage Options and System Design

    E-Print Network [OSTI]

    Ogden, Joan M; Yang, Christopher

    2005-01-01T23:59:59.000Z

    Natural Gas Based Hydrogen Infrastructure Optimizingdevelopment of a hydrogen infrastructure has been identifiedrecent studies of hydrogen infrastructure have assessed

  9. Material synthesis and hydrogen storage of palladium-rhodium alloy.

    SciTech Connect (OSTI)

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

    2011-08-01T23:59:59.000Z

    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.

  10. Destabilized and catalyzed borohydride for reversible hydrogen storage

    DOE Patents [OSTI]

    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

    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.

  11. Agenda for the Hydrogen Delivery and Onboard Storage Analysis Workshop |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The Future of1Albuquerque, NM - Building America TopAgenda - DOE Tribal

  12. Enhancement of Hydrogen Storage Capacity in Hydrate Lattices

    SciTech Connect (OSTI)

    Yoo, Soohaeng; Xantheas, Sotiris S.

    2012-02-16T23:59:59.000Z

    First principles electronic structure calculations of the gas phase pentagonal dodecahedron (H2O)20 (D-cage) and tetrakaidecahedron (H2O)24 (T-cage), which are building blocks of structure I (sI) hydrate lattice, suggest that these can accommodate up to a maximum of 5 and 7 guest hydrogen molecules, respectively. For the pure hydrogen hydrate, Born-Oppenheimer Molecular Dynamics (BOMD) simulations of periodic (sI) hydrate lattices indicate that the guest molecules are released into the vapor phase via the hexagonal phases of the larger T-cages. An additional mechanism for the migration between neighboring D- and T-cages was found to occur through a shared pentagonal face via the breaking and reforming of a hydrogen bond. This molecular mechanism is also found for the expulsion of a CH4 molecule from the D-cage. The presence of methane in the larger T-cages was found to block this release, therefore suggesting possible scenarios for the stabilization of these mixed guest clathrate hydrates and the potential enhancement of their hydrogen storage capacity.

  13. Mg-Based Nano-layered Thin Films for Hydrogen Storage

    E-Print Network [OSTI]

    Junkaew, Anchalee

    2013-11-26T23:59:59.000Z

    -plane direction as a function of the distance from interface. . . . . . . . . . . . . . . 152 xvii LIST OF TABLES TABLE Page 1.1 Selected hydrogen storage targets for light-duty vehicles proposed by DOE in 2009... for hydrogen storage in light-duty vehicles shown in Table 1.1 [10]. Development of materials-based storage will be further discussed in the literature review section. 1.1.3 Hydrogen combustion: fuel cells Fuel cells are electrochemical devices that essentially...

  14. Mg-Based Nano-layered Thin Films for Hydrogen Storage

    E-Print Network [OSTI]

    Junkaew, Anchalee

    2013-11-26T23:59:59.000Z

    -plane direction as a function of the distance from interface. . . . . . . . . . . . . . . 152 xvii LIST OF TABLES TABLE Page 1.1 Selected hydrogen storage targets for light-duty vehicles proposed by DOE in 2009... for hydrogen storage in light-duty vehicles shown in Table 1.1 [10]. Development of materials-based storage will be further discussed in the literature review section. 1.1.3 Hydrogen combustion: fuel cells Fuel cells are electrochemical devices that essentially...

  15. Inorganic Chemistry in Hydrogen Storage and Biomass Catalysis

    SciTech Connect (OSTI)

    Thorn, David [Los Alamos National Laboratory

    2012-06-13T23:59:59.000Z

    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.

  16. Cost Analysis of Hydrogen Storage Systems | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: Theof"Wave theJuly 30, 2013Department of EnergyCoreHydrogen Storage

  17. Cryogenic Hydrogen Storage Systems Workshop Agenda | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: Theof"Wave theJuly 30,Crafty Gifts for theof EnergyRev.Hydrogen Storage

  18. Materials-Based Hydrogen Storage | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking ofOil & GasTechnical Publications »ofHydrogen Storage » Current

  19. Hydrogen Storage Materials Database Demonstration | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe SolarContaminationCurrent Technology » Hydrogen StorageFact

  20. Status of Hydrogen Storage Technologies | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMayDepartment of Staffing Model5ThomasEnergy ofCellHydrogen Storage »

  1. Hydrogen and Fuel Cell Technologies Program: Storage Fact Sheet

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School footballHydrogen and Fuel CellFew-LayerGasStorageNREL is aCELL

  2. Hydrogen fuel closer to reality because of storage advances

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School footballHydrogen and Fuel CellFew-LayerGasStorageNREL isCoal

  3. Hydrogen storage and supply system - Energy Innovation Portal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School footballHydrogen and Fuel CellFew-LayerGasStorageNREL

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

    SciTech Connect (OSTI)

    Steward, D. M.

    2010-05-01T23:59:59.000Z

    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

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

    SciTech Connect (OSTI)

    Steward, D.

    2010-02-11T23:59:59.000Z

    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.

  6. 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

  7. R&D of Large Stationary Hydrogen/CNG/HCNG Storage Vessels

    Broader source: Energy.gov (indexed) [DOE]

    Stationary HydrogenCNGHCNG Storage Vessels September 28, 2010 Add hydrogen to natural gas makes it burn more cleanly (notably reducing smog-causing NO X by 50%). HCNG...

  8. Low Temperature Milling of the LiNH2 + LiH Hydrogen Storage System...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Hu, JH Kwak, and Z Yang.2009."Low Temperature Milling of the LiNH2 + LiH Hydrogen Storage System."International Journal of Hydrogen Energy 34(10):4331-4339. doi:10.1016...

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

    DOE Patents [OSTI]

    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

    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.

  10. Energy Department Announces up to $4 Million for Advanced Hydrogen Storage

    Broader source: Energy.gov [DOE]

    Up to $4 million in fiscal year 2014 funding will be made available for the continued development of advanced hydrogen storage systems and novel materials to provide adequate onboard storage for a wide range of applications including fuel cell ele

  11. 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

  12. 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.

  13. Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles...

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

    A detailed explanation of each target is given in the following pages. targetsonboardhydrostorageexplanation.pdf More Documents & Publications US DRIVE Hydrogen Storage...

  14. Energy Department Awards $4.6 Million to Advance Hydrogen Storage...

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

    1.2M to investigate the development of novel high-capacity silicon-based borohydridegraphene composite hydrogen storage materials produced through mechanochemical processes. If...

  15. Webinar: Increasing Renewable Energy with Hydrogen Storage and Fuel Cell Technologies

    Broader source: Energy.gov [DOE]

    Video recording and text version of the webinar titled "Increasing Renewable Energy with Hydrogen Storage and Fuel Cell Technologies," originally presented on August 19, 2014.

  16. Joint Meeting on Hydrogen Delivery Modeling and Analysis, May...

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

    up to 2 truck deliveries per day realizing this may be a stretch. 4. Refueling site compressors: how many and what reliability? Follow-up: Change to 3 @ 50% especially considering...

  17. New Carbon-Based Porous Materials with Increased Heats of Adsorption for Hydrogen Storage

    SciTech Connect (OSTI)

    Snurr, Randall Q.; Hupp, Joseph T.; Kanatzidis, Mercouri G.; Nguyen, SonBinh T.

    2014-11-03T23:59:59.000Z

    Hydrogen fuel cell vehicles are a promising alternative to internal combustion engines that burn gasoline. A significant challenge in developing fuel cell vehicles is to store enough hydrogen on-board to allow the same driving range as current vehicles. One option for storing hydrogen on vehicles is to use tanks filled with porous materials that act as sponges to take up large quantities of hydrogen without the need for extremely high pressures. The materials must meet many requirements to make this possible. This project aimed to develop two related classes of porous materials to meet these requirements. All materials were synthesized from molecular constituents in a building-block approach, which allows for the creation of an incredibly wide variety of materials in a tailorable fashion. The materials have extremely high surface areas, to provide many locations for hydrogen to adsorb. In addition, they were designed to contain cations that create large electric fields to bind hydrogen strongly but not too strongly. Molecular modeling played a key role as a guide to experiment throughout the project. A major accomplishment of the project was the development of a material with record hydrogen uptake at cryogenic temperatures. Although the ultimate goal was materials that adsorb large quantities of hydrogen at room temperature, this achievement at cryogenic temperatures is an important step in the right direction. In addition, there is significant interest in applications at these temperatures. The hydrogen uptake, measured independently at NREL was 8.0 wt %. This is, to the best of our knowledge, the highest validated excess hydrogen uptake reported to date at 77 K. This material was originally sketched on paper based on a hypothesis that extended framework struts would yield materials with excellent hydrogen storage properties. However, before starting the synthesis, we used molecular modeling to assess the performance of the material for hydrogen uptake. Only after modeling suggested record-breaking hydrogen uptake at 77 K did we proceed to synthesize, characterize, and test the material, ultimately yielding experimental results that agreed closely with predictions that were made before the material was synthesized. We also synthesized, characterized, and computationally simulated the behavior of two new materials displaying the highest experimental Brunauer?Emmett?Teller (BET) surface areas of any porous materials reported to date (?7000 m2/g). Key to evacuating the initially solvent-filled materials without pore collapse, and thereby accessing the ultrahigh areas, was the use of a supercritical CO2 activation technique developed by our team. In our efforts to increase the hydrogen binding energy, we developed the first examples of zwitterionic metal-organic frameworks (MOFs). The two structures feature zwitterionic characteristics arising from N-heterocyclic azolium groups in the linkers and negatively charged Zn2(CO2)5 nodes. These groups interact strongly with the H2 quadrupole. High initial isosteric heats of adsorption for hydrogen were measured at low H2 loading. Simulations were used to determine the H2 binding sites, and results were compared with inelastic neutron scattering. In addition to MOFs, the project produced a variety of related materials known as porous organic frameworks (POFs), including robust catechol-functionalized POFs with tunable porosities and degrees of functionalization. Post-synthesis metalation was readily carried out with a wide range of metal precursors (CuII, MgII, and MnII salts and complexes), resulting in metalated POFs with enhanced heats of hydrogen adsorption compared to the starting nonmetalated materials. Isosteric heats of adsorption as high as 9.6 kJ/mol were observed, compared to typical values around 5 kJ/mol in unfunctionalized MOFs and POFs. Modeling played an important role throughout the project. For example, we used molecular simulations to determine that the optimal isosteric heat of adsorption (Qst) for maximum hydrogen delivery using MOFs is appro

  18. Short-range order of low-coverage Ti/Al,,111...: Implications for hydrogen storage in complex metal hydrides

    E-Print Network [OSTI]

    Ciobanu, Cristian

    - sition to a hydrogen economy.1 Solid-state storage in hydrogen-rich compounds, e.g., complex hydridesShort-range order of low-coverage Ti/Al,,111...: Implications for hydrogen storage in complex metal-coverage Ti atoms on Al 111 as a model surface system for transition metal doped alanate hydrogen storage

  19. Reversible Hydrogen Storage Materials Structure, Chemistry, and Electronic Structure

    SciTech Connect (OSTI)

    Robertson, Ian M. [University of Wisconsin-Madison; Johnson, Duane D. [Ames Lab., Iowa

    2014-06-21T23:59:59.000Z

    To understand the processes involved in the uptake and release of hydrogen from candidate light-weight metal hydride storage systems, a combination of materials characterization techniques and first principle calculation methods have been employed. In addition to conventional microstructural characterization in the transmission electron microscope, which provides projected information about the through thickness microstructure, electron tomography methods were employed to determine the three-dimensional spatial distribution of catalyst species for select systems both before and after dehydrogenation. Catalyst species identification as well as compositional analysis of the storage material before and after hydrogen charging and discharging was performed using a combination of energy dispersive spectroscopy, EDS, and electron energy loss spectroscopy, EELS. The characterization effort was coupled with first-principles, electronic-structure and thermodynamic techniques to predict and assess meta-stable and stable phases, reaction pathways, and thermodynamic and kinetic barriers. Systems studied included:NaAlH4, CaH2/CaB6 and Ca(BH4)2, MgH2/MgB2, Ni-Catalyzed Magnesium Hydride, TiH2-Catalyzed Magnesium Hydride, LiBH4, Aluminum-based systems and Aluminum

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a r r c

  1. Systems and methods for facilitating hydrogen storage using naturally occurring nanostructure assemblies

    DOE Patents [OSTI]

    Fliermans; , Carl B. (Augusta, GA)

    2012-08-07T23:59:59.000Z

    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.

  2. HYDROGEN PRODUCTION AND DELIVERY INFRASTRUCTURE AS A COMPLEX ADAPTIVE SYSTEM

    SciTech Connect (OSTI)

    Tolley, George S

    2010-06-29T23:59:59.000Z

    An agent-based model of the transition to a hydrogen transportation economy explores influences on adoption of hydrogen vehicles and fueling infrastructure. Attention is given to whether significant penetration occurs and, if so, to the length of time required for it to occur. Estimates are provided of sensitivity to numerical values of model parameters and to effects of alternative market and policy scenarios. The model is applied to the Los Angeles metropolitan area In the benchmark simulation, the prices of hydrogen and non-hydrogen vehicles are comparable. Due to fuel efficiency, hydrogen vehicles have a fuel savings advantage of 9.8 cents per mile over non-hydrogen vehicles. Hydrogen vehicles account for 60% of new vehicle sales in 20 years from the initial entry of hydrogen vehicles into show rooms, going on to 86% in 40 years and reaching still higher values after that. If the fuel savings is 20.7 cents per mile for a hydrogen vehicle, penetration reaches 86% of new car sales by the 20th year. If the fuel savings is 0.5 cents per mile, market penetration reaches only 10% by the 20th year. To turn to vehicle price difference, if a hydrogen vehicle costs $2,000 less than a non-hydrogen vehicle, new car sales penetration reaches 92% by the 20th year. If a hydrogen vehicle costs $6,500 more than a non-hydrogen vehicle, market penetration is only 6% by the 20th year. Results from other sensitivity runs are presented. Policies that could affect hydrogen vehicle adoption are investigated. A tax credit for the purchase of a hydrogen vehicle of $2,500 tax credit results in 88% penetration by the 20th year, as compared with 60% in the benchmark case. If the tax credit is $6,000, penetration is 99% by the 20th year. Under a more modest approach, the tax credit would be available only for the first 10 years. Hydrogen sales penetration then reach 69% of sales by the 20th year with the $2,500 credit and 79% with the $6,000 credit. A carbon tax of $38 per metric ton is not large enough to noticeably affect sales penetration. A tax of $116 per metric ton makes centrally produced hydrogen profitable in the very first year but results in only 64% penetration by year 20 as opposed to the 60% penetration in the benchmark case. Provision of 15 seed stations publicly provided at the beginning of the simulation, in addition to the 15 existing stations in the benchmark case, gives sales penetration rates very close to the benchmark after 20 years, namely, 63% and 59% depending on where they are placed.

  3. Determining the lowest-cost hydrogen delivery mode

    E-Print Network [OSTI]

    Yang, Christopher; Ogden, Joan M

    2007-01-01T23:59:59.000Z

    liquid hydrogen pumps cost less than compressors. Further,and compressors have small-scale economies at this size range. Liquid hydrogenhydrogen ?ow rate, though there are slight economies of scale associated with compressor

  4. Method and System for Hydrogen Evolution and Storage

    DOE Patents [OSTI]

    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

    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.

  5. Method and system for hydrogen evolution and storage

    DOE Patents [OSTI]

    Thorn, David L.; Tumas, William; Hay, P. Jeffrey; Schwarz, Daniel E.; Cameron, Thomas M.

    2012-12-11T23:59:59.000Z

    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.

  6. Manufacturing Cost Analysis of Novel Steel/Concrete Composite Vessel for Stationary Storage of High-Pressure Hydrogen

    SciTech Connect (OSTI)

    Feng, Zhili [ORNL; Zhang, Wei [ORNL; Wang, Jy-An John [ORNL; Ren, Fei [ORNL

    2012-09-01T23:59:59.000Z

    A novel, low-cost, high-pressure, steel/concrete composite vessel (SCCV) technology for stationary storage of compressed gaseous hydrogen (CGH2) is currently under development at Oak Ridge National Laboratory (ORNL) sponsored by DOE s Fuel Cell Technologies (FCT) Program. The SCCV technology uses commodity materials including structural steels and concretes for achieving cost, durability and safety requirements. In particular, the hydrogen embrittlement of high-strength low-alloy steels, a major safety and durability issue for current industry-standard pressure vessel technology, is mitigated through the use of a unique layered steel shell structure. This report presents the cost analysis results of the novel SCCV technology. A high-fidelity cost analysis tool is developed, based on a detailed, bottom-up approach which takes into account the material and labor costs involved in each of the vessel manufacturing steps. A thorough cost study is performed to understand the SCCV cost as a function of the key vessel design parameters, including hydrogen pressure, vessel dimensions, and load-carrying ratio. The major conclusions include: The SCCV technology can meet the technical/cost targets set forth by DOE s FCT Program for FY2015 and FY2020 for all three pressure levels (i.e., 160, 430 and 860 bar) relevant to the hydrogen production and delivery infrastructure. Further vessel cost reduction can benefit from the development of advanced vessel fabrication technologies such as the highly automated friction stir welding (FSW). The ORNL-patented multi-layer, multi-pass FSW can not only reduce the amount of labor needed for assembling and welding the layered steel vessel, but also make it possible to use even higher strength steels for further cost reductions and improvement of vessel structural integrity. It is noted the cost analysis results demonstrate the significant cost advantage attainable by the SCCV technology for different pressure levels when compared to the industry-standard pressure vessel technology. The real-world performance data of SCCV under actual operating conditions is imperative for this new technology to be adopted by the hydrogen industry for stationary storage of CGH2. Therefore, the key technology development effort in FY13 and subsequent years will be focused on the fabrication and testing of SCCV mock-ups. The static loading and fatigue data will be generated in rigorous testing of these mock-ups. Successful tests are crucial to enabling the near-term impact of the developed storage technology on the CGH2 storage market, a critical component of the hydrogen production and delivery infrastructure. In particular, the SCCV has high potential for widespread deployment in hydrogen fueling stations.

  7. Experimental investigation of onboard storage and refueling systems for liquid-hydrogen-fueled vehicles

    SciTech Connect (OSTI)

    Stewart, W.F.

    1982-09-01T23:59:59.000Z

    A 2-1/2-year baseline experimental hydrogen-fueled automotive vehicle project was conducted to evaluate and document state-of-the-art capabilities in engine conversion for hydrogen operation, liquid-hydrogen onboard storage, and liquid-hydrogen refueling. The engine conversion, onboard liquid-hydrogen storage tank, and liquid-hydrogen refueling system used in the project represented readily available equipment or technology when the project began. The project information documented herein can serve as a basis of comparison with which to evaluate future vehicles that are powered by hydrogen or other alternative fuels, with different engines, and different fuel-storage methods. The results of the project indicate that liquid-hydrogen storage observed an operating vehicle and routine refueling of the vehicle can be accomplished over an extended period without any major difficulty. Two different liquid-hydrogen vehicle onboard storage tanks designed for vehicular applications were tested in actual road operation: the first was an aluminum dewar with a liquid-hydrogen capacity of 110 l; the second was a Dewar with an aluminum outer vessel, two copper, vapor-cooled thermal-radiation shields, and a stainless-steel inner vessel with a liquid-hydrogen capacity of 155 l. The car was refueled with liquid hydrogen at least 65 times involving more than 8.1 kl of liquid hydrogen during the 17 months that the car was operated on liquid hydrogen. The vehicle, a 1979 Buick Century sedan with a 3.8-l-displacement turbocharged V6 engine, was driven for 3633 km over the road on hydrogen. The vehicle had a range without refueling of about 274 km with the first liquid-hydrogen tank and about 362 km with the second tank. The vehicle achieved 2.4 km/l of liquid hydrogen which corresponds to 9.4 km/l gasoline on an equivalent energy basis.

  8. Uranium for hydrogen storage applications : a materials science perspective.

    SciTech Connect (OSTI)

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

    2010-08-01T23:59:59.000Z

    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.

  9. Overview of Two Hydrogen Energy Storage Studies: Wind Hydrogen in California and Blending in Natural Gas Pipelines (Presentation)

    SciTech Connect (OSTI)

    Melaina, M. W.

    2013-05-01T23:59:59.000Z

    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.

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

    DOE Patents [OSTI]

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

    2012-12-25T23:59:59.000Z

    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.

  11. Hydrogen Internal Combustion Engine Two Wheeler with on-board Metal Hydride Storage

    E-Print Network [OSTI]

    Hydrogen Internal Combustion Engine Two Wheeler with on-board Metal Hydride Storage K. Sapru*, S, as a transition, the hydrogen internal combustion engine can lead the way to a hydrogen economy, allowing of these can ease India's dependence on foreign oil, and also eliminate the drastic power shortage, which

  12. Making the case for direct hydrogen storage in fuel cell vehicles

    SciTech Connect (OSTI)

    James, B.D.; Thomas, C.E.; Baum, G.N.; Lomas, F.D. Jr.; Kuhn, I.F. Jr. [Directed Technologies, Inc., Arlington, VA (United States)

    1997-12-31T23:59:59.000Z

    Three obstacles to the introduction of direct hydrogen fuel cell vehicles are often states: (1) inadequate onboard hydrogen storage leading to limited vehicle range; (2) lack of an hydrogen infrastructure, and (3) cost of the entire fuel cell system. This paper will address the first point with analysis of the problem/proposed solutions for the remaining two obstacles addressed in other papers. Results of a recent study conducted by Directed Technologies Inc. will be briefly presented. The study, as part of Ford Motor Company/DOE PEM Fuel Cell Program, examines multiple pure hydrogen onboard storage systems on the basis of weight, volume, cost, and complexity. Compressed gas, liquid, carbon adsorption, and metal hydride storage are all examined with compressed hydrogen storage at 5,000 psia being judged the lowest-risk, highest benefit, near-term option. These results are combined with recent fuel cell vehicle drive cycle simulations to estimate the onboard hydrogen storage requirement for full vehicle range (380 miles on the combined Federal driving schedule). The results indicate that a PNGV-like vehicle using powertrain weights and performance realistically available by the 2004 PNGV target data can achieve approximate fuel economy equivalent to 100 mpg on gasoline (100 mpg{sub eq}) and requires storage of approximately 3.6 kg hydrogen for full vehicle storage quantity allows 5,000 psia onboard storage without altering the vehicle exterior lines or appreciably encroaching on the passenger or trunk compartments.

  13. Ammonia storage and delivery systems for NOx aftertreatment | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: The Future of1Albuquerque, NM -AliciaBioenergy5.doc&#0;Energy storage and

  14. First-Principles Study of the Li-Na-Ca-N-H System: Compound Structures and Hydrogen-Storage Properties

    E-Print Network [OSTI]

    Teeratchanan, Pattanasak

    2012-01-01T23:59:59.000Z

    H. Leng, and H. Jujii, Hydrogen desorption properties ofN-H system for reversible hydrogen storage, J. Alloys Comp,and K. Tan, Interaction of hydrogen with metal nitrides and

  15. Targets for on-board hydrogen storage systems: Current R&D focus is on 2010 Targets

    E-Print Network [OSTI]

    storage system) 98% (dry basis) Useful constants: 0.2778kWh/MJ, ~33.3kWh/gal gasoline equivalent. #12Targets for on-board hydrogen storage systems: Current R&D focus is on 2010 Targets Table 1. DOE Technical Targets: On-Board Hydrogen Storage Systemsa, b, c Storage Parameter Units 2007* 2010 2015 Usable

  16. SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation...

    Broader source: Energy.gov (indexed) [DOE]

    in hydrogen production, storage, and delivery with transportation and stationary fuel cell applications. This evaluation focuses on documenting progress and opportunities for...

  17. New insights into designing metallacarborane based room temperature hydrogen storage media

    SciTech Connect (OSTI)

    Bora, Pankaj Lochan; Singh, Abhishek K. [Materials Research Centre, Indian Institute of Science, Bangalore 560012 (India)] [Materials Research Centre, Indian Institute of Science, Bangalore 560012 (India)

    2013-10-28T23:59:59.000Z

    Metallacarboranes are promising towards realizing room temperature hydrogen storage media because of the presence of both transition metal and carbon atoms. In metallacarborane clusters, the transition metal adsorbs hydrogen molecules and carbon can link these clusters to form metal organic framework, which can serve as a complete storage medium. Using first principles density functional calculations, we chalk out the underlying principles of designing an efficient metallacarborane based hydrogen storage media. The storage capacity of hydrogen depends upon the number of available transition metal d-orbitals, number of carbons, and dopant atoms in the cluster. These factors control the amount of charge transfer from metal to the cluster, thereby affecting the number of adsorbed hydrogen molecules. This correlation between the charge transfer and storage capacity is general in nature, and can be applied to designing efficient hydrogen storage systems. Following this strategy, a search for the best metallacarborane was carried out in which Sc based monocarborane was found to be the most promising H{sub 2} sorbent material with a 9 wt.% of reversible storage at ambient pressure and temperature.

  18. PRODUCTION, STORAGE AND PROPERTIES OF HYDROGEN AS INTERNAL COMBUSTION ENGINE FUEL: A CRITICAL REVIEW

    E-Print Network [OSTI]

    In the age of ever increasing energy demand, hydrogen may play a major role as fuel. Hydrogen can be used as a transportation fuel, whereas neither nuclear nor solar energy can be used directly. The blends of hydrogen and ethanol have been used as alternative renewable fuels in a carbureted spark ignition engine. Hydrogen has very special properties as a transportation fuel, including a rapid burning speed, a high effective octane number, and no toxicity or ozone-forming potential. A stoichiometric hydrogenair mixture has very low minimum ignition energy of 0.02 MJ. Combustion product of hydrogen is clean, which consists of water and a little amount of nitrogen oxides (NOx). The main drawbacks of using hydrogen as a transportation fuel are huge on-board storage tanks. Hydrogen stores approximately 2.6 times more energy per unit mass than gasoline. The disadvantage is that it needs an estimated 4 times more volume than gasoline to store that energy. The production and the storage of hydrogen fuel are not yet fully standardized. The paper reviews the different production techniques as well as storage systems of hydrogen to be used as IC engine fuel. The desirable and undesirable properties of hydrogen as IC engine fuels have also been discussed.

  19. Hydrogen Storage in Carbon Nanotubes Through Formation of C-H...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    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...

  20. Technical Assessment of Compressed Hydrogen Storage Tank Systems for Automotive Applications

    Fuel Cell Technologies Publication and Product Library (EERE)

    This technical report describes DOE's assessment of the performance and cost of compressed hydrogen storage tank systems for automotive applications. The on-board performance (by Argonne National Lab)

  1. Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles

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

    4.0 Page 1 of 22 Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles US Department of Energy Office of Energy Efficiency and Renewable Energy and The FreedomCAR...

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

    SciTech Connect (OSTI)

    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

    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.

  3. First principles DFT investigation of yttrium-doped graphene: Electronic structure and hydrogen storage

    SciTech Connect (OSTI)

    Desnavi, Sameerah, E-mail: sameerah-desnavi@zhcet.ac.in [Department of Electronic Engineering, ZHCET, Aligarh Muslim University, Aligarh-202002 (India); Chakraborty, Brahmananda; Ramaniah, Lavanya M. [High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai-400085 (India)

    2014-04-24T23:59:59.000Z

    The electronic structure and hydrogen storage capability of Yttrium-doped grapheme has been theoretically investigated using first principles density functional theory (DFT). Yttrium atom prefers the hollow site of the hexagonal ring with a binding energy of 1.40 eV. Doping by Y makes the system metallic and magnetic with a magnetic moment of 2.11 ?{sub B}. Y decorated graphene can adsorb up to four hydrogen molecules with an average binding energy of 0.415 eV. All the hydrogen atoms are physisorbed with an average desorption temperature of 530.44 K. The Y atoms can be placed only in alternate hexagons, which imply a wt% of 6.17, close to the DoE criterion for hydrogen storage materials. Thus, this system is potential hydrogen storage medium with 100% recycling capability.

  4. Global Assessment of Hydrogen Technologies Tasks 3 & 4 Report Economic, Energy, and Environmental Analysis of Hydrogen Production and Delivery Options in Select Alabama Markets: Preliminary Case Studies

    SciTech Connect (OSTI)

    Fouad, Fouad H.; Peters, Robert W.; Sisiopiku, Virginia P.; Sullivan Andrew J.; Gillette, Jerry; Elgowainy, Amgad; Mintz, Marianne

    2007-12-01T23:59:59.000Z

    This report documents a set of case studies developed to estimate the cost of producing, storing, delivering, and dispensing hydrogen for light-duty vehicles for several scenarios involving metropolitan areas in Alabama. While the majority of the scenarios focused on centralized hydrogen production and pipeline delivery, alternative delivery modes were also examined. Although Alabama was used as the case study for this analysis, the results provide insights into the unique requirements for deploying hydrogen infrastructure in smaller urban and rural environments that lie outside the DOEs high priority hydrogen deployment regions. Hydrogen production costs were estimated for three technologies steam-methane reforming (SMR), coal gasification, and thermochemical water-splitting using advanced nuclear reactors. In all cases examined, SMR has the lowest production cost for the demands associated with metropolitan areas in Alabama. Although other production options may be less costly for larger hydrogen markets, these were not examined within the context of the case studies.

  5. Combined on-board hydride slurry storage and reactor system and process for hydrogen-powered vehicles and devices

    DOE Patents [OSTI]

    Brooks, Kriston P; Holladay, Jamelyn D; Simmons, Kevin L; Herling, Darrell R

    2014-11-18T23:59:59.000Z

    An on-board hydride storage system and process are described. The system includes a slurry storage system that includes a slurry reactor and a variable concentration slurry. In one preferred configuration, the storage system stores a slurry containing a hydride storage material in a carrier fluid at a first concentration of hydride solids. The slurry reactor receives the slurry containing a second concentration of the hydride storage material and releases hydrogen as a fuel to hydrogen-power devices and vehicles.

  6. Bulk-scaffolded hydrogen storage and releasing materials and methods for preparing and using same

    DOE Patents [OSTI]

    Autrey, S Thomas [West Richland, WA; Karkamkar, Abhijeet J [Richland, WA; Gutowska, Anna [Richland, WA; Li, Liyu [Richland, WA; Li, Xiaohong S [Richland, WA; Shin, Yongsoon [Richland, WA

    2011-06-21T23:59:59.000Z

    Compositions are disclosed for storing and releasing hydrogen and methods for preparing and using same. These hydrogen storage and releasing materials exhibit fast release rates at low release temperatures without unwanted side reactions, thus preserving desired levels of purity and enabling applications in combustion and fuel cell applications.

  7. Opening of a PhD studentship Development and characterization of composite materials for hydrogen storage

    E-Print Network [OSTI]

    Opening of a PhD studentship Development and characterization of composite materials for hydrogen "Demokritos", is seeking a pre-doctoral researcher to work on hydrogen storage studies in porous and composite materials in connection with the H2FC-Integrating European Infrastructure to support science

  8. Hydrogen Storage in Metal-Modified Single-Walled Carbon Nanotubes (start 9/15/01)

    E-Print Network [OSTI]

    Hydrogen Storage in Metal-Modified Single-Walled Carbon Nanotubes (start 9/15/01) Channing Ahn, PI physisorption for reversible solid-state material storage systems. Investigate effect of potassium (alkal-metal;Project timeline Only commercial vendor of laser-oven material is Carbolex -sells as-prepared nanotubes

  9. Economic analysis of large-scale hydrogen storage for renewable utility applications.

    SciTech Connect (OSTI)

    Schoenung, Susan M.

    2011-08-01T23:59:59.000Z

    The work reported here supports the efforts of the Market Transformation element of the DOE Fuel Cell Technology Program. The portfolio includes hydrogen technologies, as well as fuel cell technologies. The objective of this work is to model the use of bulk hydrogen storage, integrated with intermittent renewable energy production of hydrogen via electrolysis, used to generate grid-quality electricity. In addition the work determines cost-effective scale and design characteristics and explores potential attractive business models.

  10. Potential Carriers andPotential Carriers and Approaches for HydrogenApproaches for Hydrogen

    E-Print Network [OSTI]

    Refueling Type On-Board Storage Type Compressed Gaseous Hydrogen · Pipeline · Low-P Tube Trailer · HighPotential Carriers andPotential Carriers and Approaches for HydrogenApproaches for Hydrogen © 2007 TIAX LLC Hydrogen Delivery Analysis Meeting May 8-9, 2007 Columbia, Maryland Matthew Hooks Stefan

  11. Scenario Development and Analysis of Hydrogen as a Large-Scale Energy Storage Medium (Presentation)

    SciTech Connect (OSTI)

    Steward, D. M.

    2009-06-10T23:59:59.000Z

    The conclusions from this report are: (1) hydrogen has several important advantages over competing technologies, including - very high storage energy density (170 kWh/m{sup 3} vs. 2.4 for CAES and 0.7 for pumped hydro) which allows for potential economic viability of above-ground storage and relatively low environmental impact in comparison with other technologies; and (2) the major disadvantage of hydrogen energy storage is cost but research and deployment of electrolyzers and fuel cells may reduce cost significantly.

  12. A comparative analysis of the cryo-compression and cryo-adsorption hydrogen storage methods

    SciTech Connect (OSTI)

    Petitpas, G [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Benard, P [Universite du Quebec a Trois-Rivieres (Canada); Klebanoff, L E [Sandia National Lab. (SNL-CA), Livermore, CA (United States); Xiao, J [Universite du Quebec a Trois-Rivieres (Canada); Aceves, S M [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2014-07-01T23:59:59.000Z

    While conventional low-pressure LH? dewars have existed for decades, advanced methods of cryogenic hydrogen storage have recently been developed. These advanced methods are cryo-compression and cryo-adsorption hydrogen storage, which operate best in the temperature range 30100 K. We present a comparative analysis of both approaches for cryogenic hydrogen storage, examining how pressure and/or sorbent materials are used to effectively increase onboard H? density and dormancy. We start by reviewing some basic aspects of LH? properties and conventional means of storing it. From there we describe the cryo-compression and cryo-adsorption hydrogen storage methods, and then explore the relationship between them, clarifying the materials science and physics of the two approaches in trying to solve the same hydrogen storage task (~58 kg H?, typical of light duty vehicles). Assuming that the balance of plant and the available volume for the storage system in the vehicle are identical for both approaches, the comparison focuses on how the respective storage capacities, vessel weight and dormancy vary as a function of temperature, pressure and type of cryo-adsorption material (especially, powder MOF-5 and MIL-101). By performing a comparative analysis, we clarify the science of each approach individually, identify the regimes where the attributes of each can be maximized, elucidate the properties of these systems during refueling, and probe the possible benefits of a combined hybrid system with both cryo-adsorption and cryo-compression phenomena operating at the same time. In addition the relationships found between onboard H? capacity, pressure vessel and/or sorbent mass and dormancy as a function of rated pressure, type of sorbent material and fueling conditions are useful as general designing guidelines in future engineering efforts using these two hydrogen storage approaches.

  13. Technical System Targets: Onboard Hydrogen Storage for Light...

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

    powerplant, i.e., accounting for any energy required for operating pumps, blowers, compressors, heating, etc. required for hydrogen release. Well-to-powerplant efficiency...

  14. Sorbents and Carbon-Based Materials for Hydrogen Storage R &...

    Broader source: Energy.gov (indexed) [DOE]

    for storing hydrogen in high-surface-area sorbents such as hybrid carbon nanotubes, aerogels, and nanofibers, as well as metal-organic frameworks and conducting polymers. A...

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

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

    with a High Binding Energy (New Joint UC-BerkeleySymyx DoDDLA Project), Jeffrey Long, University of California, Berkeley High ThroughputCombinatorial Screening of Hydrogen...

  16. Hydrogen Storage Systems Anlaysis Working Group Meeting, December...

    Broader source: Energy.gov (indexed) [DOE]

    Parilla (NREL) described the approach of the carbon Center of Excellence in designing materials with a compact scaffold, a high density of binding sites, and optimized hydrogen...

  17. Bonfire Tests of High Pressure Hydrogen Storage Tanks

    Broader source: Energy.gov [DOE]

    These slides were presented at the International Hydrogen Fuel and Pressure Vessel Forum on September 27 29, 2010, in Beijing, China.

  18. Sorbents and Carbon-Based Materials for Hydrogen Storage Research...

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

    for storing hydrogen in high-surface-area sorbents such as hybrid carbon nanotubes, aerogels, and nanofibers, as well as metal-organic frameworks and conducting polymers. A...

  19. Hydrogen Storage Systems Analysis Working Group Meeting: Summary...

    Broader source: Energy.gov (indexed) [DOE]

    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...

  20. Development and Testing of Hydrogen Storage System(s)

    E-Print Network [OSTI]

    of Electricity Delivery and Energy Reliability Under Award No. DE-FC-06NT42847 Task 2.2. Deliverable #1), considerable infrastructure already existed at Kahua comprised of photovoltaic (PV), wind turbine (WT), battery

  1. Panel 3, Necessary Conditions for Hydrogen Energy Storage Projects...

    Broader source: Energy.gov (indexed) [DOE]

    Fuel Cell Modules Stand-by Power Mobility Power Energy Storage Power-to-Gas Germany * 550 TWh annual demand * Renewable generation 24% in 2012 * Significant transmission...

  2. Virtual Center of Excellence for Hydrogen Storage - Chemical...

    Broader source: Energy.gov (indexed) [DOE]

    funded) * Advanced carbon materials (LDRD) - (we propose a support role in the carbon materials virtual center) * Electrochemically active barrier liner for composite storage tanks...

  3. Cryotank for storage of hydrogen as a vehicle fuel

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    storage Prototypes have passed Department of Transportation and International Organization for Standardization (ISO) tests (fire & bullet) 4 Environmental test -40F 120F...

  4. application hydrogen storage: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Z. Hong, Y. Yan, R. Pei, Y. Jiang and T. A. Coombs, Design... and test of a Superconduct- ing Magnetic Energy Storage (SMES) coil, IEEE transaction on applied...

  5. Enhanced hydrogen storage properties of LiAlH4 catalyzed by CoFe2O4 nanoparticles

    E-Print Network [OSTI]

    Volinsky, Alex A.

    environmental issues.1­3 The prerequisite for widespread hydrogen use as an energy carrier is the develop- ment.5 MPa pressure held for 2.5 h. 1. Introduction As a renewable energy source, hydrogen can be produced it an ideal hydrogen storage material to meet the U.S. Department of Energy 2015 targets for a viable hydrogen

  6. Sub-Nanostructured Non Transition Metal Complex Grids for Hydrogen Storage

    SciTech Connect (OSTI)

    Dr. Orhan Talu; Dr. Surendra N. Tewari

    2007-10-27T23:59:59.000Z

    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.

  7. Integrated technical and economic assessments of transport and storage of hydrogen

    SciTech Connect (OSTI)

    Berry, G.D. [Lawrence Livermore National Lab., CA (United States)]|[Illinois Univ., Urbana, IL (United States); Smith, J.R. [Lawrence Livermore National Lab., CA (United States)

    1994-04-01T23:59:59.000Z

    Transportation will be a major market for hydrogen because of its great size and the value of energy at the wheels of a vehicle in comparison to its heating value. Hydrogen also offers important potential efficiency gains over hydrocarbon fuels. However, hydrogen end-use technologies will not develop without a reliable hydrogen supply infrastructure. By the same token, reliable infrastructures will not develop without end-use demand. Our task is to analyze the costs of various infrastructure options for providing hydrogen, as the number of vehicles serviced increased from very small numbers initially, to moderate numbers in the mid-term and to determine if a smooth transition may be possible. We will determine viable market sizes for transport and storage options by examining the technologies and the capital and operating costs of these systems, as well as related issues such as safety, construction time, etc. The product of our work will be data based scenarios of the likely transitions to hydrogen fuel, beginning with small and progressing to larger numbers of vehicles. We are working closely with the suppliers of relevant technologies to (1) determine realistic component costs, and (2) to assure availability of our analyses to business. Preliminary analyses indicate that the cost of transport and storage is as important as production cost in determining the cost of hydrogen fuel to the consumer, and that home electrolysis and centrally processed liquid hydrogen may provide hydrogen in the initial stages.

  8. Hydrogen storage in carbon nitride nanobells X. D. Bai, Dingyong Zhong, G. Y. Zhang, X. C. Ma, Shuang Liu, and E. G. Wanga)

    E-Print Network [OSTI]

    Zhang, Guangyu

    Hydrogen storage in carbon nitride nanobells X. D. Bai, Dingyong Zhong, G. Y. Zhang, X. C. Ma as hydrogen adsorbent. A hydrogen storage capacity up to 8 wt % was achieved reproducibly under ambient pressure and at temperature of 300 C. The high hydrogen storage capacity under the moderate conditions

  9. A life cycle cost analysis framework for geologic storage of hydrogen : a user's tool.

    SciTech Connect (OSTI)

    Kobos, Peter Holmes; Lord, Anna Snider; Borns, David James; Klise, Geoffrey T.

    2011-09-01T23:59:59.000Z

    The U.S. Department of Energy (DOE) has an interest in large scale hydrogen geostorage, which could offer substantial buffer capacity to meet possible disruptions in supply or changing seasonal demands. The geostorage site options being considered are salt caverns, depleted oil/gas reservoirs, aquifers and hard rock caverns. The DOE has an interest in assessing the geological, geomechanical and economic viability for these types of geologic hydrogen storage options. This study has developed an economic analysis methodology and subsequent spreadsheet analysis to address costs entailed in developing and operating an underground geologic storage facility. This year the tool was updated specifically to (1) incorporate more site-specific model input assumptions for the wells and storage site modules, (2) develop a version that matches the general format of the HDSAM model developed and maintained by Argonne National Laboratory, and (3) incorporate specific demand scenarios illustrating the model's capability. Four general types of underground storage were analyzed: salt caverns, depleted oil/gas reservoirs, aquifers, and hard rock caverns/other custom sites. Due to the substantial lessons learned from the geological storage of natural gas already employed, these options present a potentially sizable storage option. Understanding and including these various geologic storage types in the analysis physical and economic framework will help identify what geologic option would be best suited for the storage of hydrogen. It is important to note, however, that existing natural gas options may not translate to a hydrogen system where substantial engineering obstacles may be encountered. There are only three locations worldwide that currently store hydrogen underground and they are all in salt caverns. Two locations are in the U.S. (Texas), and are managed by ConocoPhillips and Praxair (Leighty, 2007). The third is in Teeside, U.K., managed by Sabic Petrochemicals (Crotogino et al., 2008; Panfilov et al., 2006). These existing H{sub 2} facilities are quite small by natural gas storage standards. The second stage of the analysis involved providing ANL with estimated geostorage costs of hydrogen within salt caverns for various market penetrations for four representative cities (Houston, Detroit, Pittsburgh and Los Angeles). Using these demand levels, the scale and cost of hydrogen storage necessary to meet 10%, 25% and 100% of vehicle summer demands was calculated.

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

    SciTech Connect (OSTI)

    Not Available

    1980-05-01T23:59:59.000Z

    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.

  11. Cryogenic, compressed, and liquid hydrogen fuel storage in vehicles

    E-Print Network [OSTI]

    Reyes, Allan B

    2007-01-01T23:59:59.000Z

    Hydrogen is the viable energy carrier of future energy and transportation systems due to its clean emissions, light weight, and abundance. Its extremely low volumetric density, however, presents significant challenges to ...

  12. Technical Assessment: Cryo-Compressed Hydrogen Storage for Vehicular...

    Broader source: Energy.gov (indexed) [DOE]

    assuming 10.1 kg usable liquid hydrogen. 7 The two main cost contributors are the carbon fiber composite and the group of cryogenic valves and regulator, each accounting for...

  13. Thermomechanics of hydrogen storage in metallic hydrides: modeling and analysis

    E-Print Network [OSTI]

    Tomas Roubicek; Giuseppe Tomassetti

    2013-09-12T23:59:59.000Z

    A thermodynamically consistent mathematical model for hydrogen adsorption in metal hydrides is proposed. Beside hydrogen diffusion, the model accounts for phase transformation accompanied by hysteresis, swelling, temperature and heat transfer, strain, and stress. We prove existence of solutions of the ensuing system of partial differential equations by a carefully-designed, semi-implicit approximation scheme. A generalization for a drift-diffusion of multi-component ionized "gas" is outlined, too.

  14. Technical Assessment of Cryo-Compressed Hydrogen Storage Tank...

    Broader source: Energy.gov (indexed) [DOE]

    of stored H 2 . References 1. Berry, G., Aceves, S., Espinosa, F., Ross, T., Switzer, V., Smith, R., and Weisberg, A., "Compact L(H 2 ) Storage with Extended Dormancy in Cryogenic...

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

    SciTech Connect (OSTI)

    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

    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.

  16. Pressure Relief Devices for High-Pressure Gaseous Storage Systems: Applicability to Hydrogen Technology

    SciTech Connect (OSTI)

    Kostival, A.; Rivkin, C.; Buttner, W.; Burgess, R.

    2013-11-01T23:59:59.000Z

    Pressure relief devices (PRDs) are viewed as essential safety measures for high-pressure gas storage and distribution systems. These devices are used to prevent the over-pressurization of gas storage vessels and distribution equipment, except in the application of certain toxic gases. PRDs play a critical role in the implementation of most high-pressure gas storage systems and anyone working with these devices should understand their function so they can be designed, installed, and maintained properly to prevent any potentially dangerous or fatal incidents. As such, the intention of this report is to introduce the reader to the function of the common types of PRDs currently used in industry. Since high-pressure hydrogen gas storage systems are being developed to support the growing hydrogen energy infrastructure, several recent failure incidents, specifically involving hydrogen, will be examined to demonstrate the results and possible mechanisms of a device failure. The applicable codes and standards, developed to minimize the risk of failure for PRDs, will also be reviewed. Finally, because PRDs are a critical component for the development of a successful hydrogen energy infrastructure, important considerations for pressure relief devices applied in a hydrogen gas environment will be explored.

  17. An overviewFunctional nanomaterials for lithium rechargeable batteries, supercapacitors, hydrogen storage, and fuel cells

    SciTech Connect (OSTI)

    Liu, Hua Kun, E-mail: hua@uow.edu.au

    2013-12-15T23:59:59.000Z

    Graphical abstract: Nanomaterials play important role in lithium ion batteries, supercapacitors, hydrogen storage and fuel cells. - Highlights: Nanomaterials play important role for lithium rechargeable batteries. Nanostructured materials increase the capacitance of supercapacitors. Nanostructure improves the hydrogenation/dehydrogenation of hydrogen storage materials. Nanomaterials enhance the electrocatalytic activity of the catalysts in fuel cells. - Abstract: There is tremendous worldwide interest in functional nanostructured materials, which are the advanced nanotechnology materials with internal or external dimensions on the order of nanometers. Their extremely small dimensions make these materials unique and promising for clean energy applications such as lithium ion batteries, supercapacitors, hydrogen storage, fuel cells, and other applications. This paper will highlight the development of new approaches to study the relationships between the structure and the physical, chemical, and electrochemical properties of functional nanostructured materials. The Energy Materials Research Programme at the Institute for Superconducting and Electronic Materials, the University of Wollongong, has been focused on the synthesis, characterization, and applications of functional nanomaterials, including nanoparticles, nanotubes, nanowires, nanoporous materials, and nanocomposites. The emphases are placed on advanced nanotechnology, design, and control of the composition, morphology, nanostructure, and functionality of the nanomaterials, and on the subsequent applications of these materials to areas including lithium ion batteries, supercapacitors, hydrogen storage, and fuel cells.

  18. Webinar: Increasing Renewable Energy with Hydrogen Storage and Fuel Cell Technologies

    Broader source: Energy.gov [DOE]

    The Energy Department will present a webinar titled "Increasing Renewable Energy with Hydrogen Storage and Fuel Cell Technologies" on Tuesday, August 19, from 12:00 to 1:00 p.m. Eastern Daylight Time (EDT). The webinar will feature representatives from the National Renewable Energy Laboratory presenting a unique opportunity for the integration of multiple sectors including transportation, industrial, heating fuel, and electric sectors on hydrogen.

  19. REVERSIBLE HYDROGEN STORAGE IN A LiBH{sub 4}-C{sub 60} NANOCOMPOSITE

    SciTech Connect (OSTI)

    Teprovich, J.; Zidan, R.; Peters, B.; Wheeler, J.

    2013-08-06T23:59:59.000Z

    Reversible hydrogen storage in a LiBH{sub 4}:C{sub 60} nanocomposite (70:30 wt. %) synthesized by solvent-assisted mixing has been demonstrated. During the solvent-assisted mixing and nanocomposite formation, a chemical reaction occurs in which the C{sub 60} cages are significantly modified by polymerization as well as by hydrogenation (fullerane formation) in the presence of LiBH{sub 4}. We have determined that two distinct hydrogen desorption events are observed upon rehydrogenation of the material, which are attributed to the reversible formation of a fullerane (C{sub 60}H{sub x}) as well as a LiBH4 species. This system is unique in that the carbon species (C{sub 60}) actively participates in the hydrogen storage process which differs from the common practice of melt infiltration of high surface area carbon materials with LiBH{sub 4} (nanoconfinment effect). This nanocomposite demonstrated good reversible hydrogen storage properties as well as the ability to absorb hydrogen under mild conditions (pressures as low as 10 bar H{sub 2} or temperatures as low as 150?C). The nanocomposite was characterized by TGA-RGA, DSC, XRD, LDI-TOF-MS, FTIR, 1H NMR, and APPI MS.

  20. 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]

    Lipman, Tim; Shah, Nihar

    2007-01-01T23:59:59.000Z

    DTIC Review: Energy Supply Alternatives: ADA433359, 2004.Ammonia as an Alternative Energy Storage Medium for Hydrogen2007 Ammonia As an Alternative Energy Storage Medium for

  1. Hydrogen Storage Technologies: Long-Term Commercialization Approach with

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe SolarContaminationCurrent Technology » HydrogenHydrogen

  2. Hydrogen Pathways: Updated Cost, Well-to-Wheels Energy Use, and Emissions for the Current Technology Status of Ten Hydrogen Production, Delivery, and Distribution Scenarios

    SciTech Connect (OSTI)

    Ramsden, T.; Ruth, M.; Diakov, V.; Laffen, M.; Timbario, T. A.

    2013-03-01T23:59:59.000Z

    This report describes a life-cycle assessment conducted by the National Renewable Energy Laboratory (NREL) of 10 hydrogen production, delivery, dispensing, and use pathways that were evaluated for cost, energy use, and greenhouse gas (GHG) emissions. This evaluation updates and expands on a previous assessment of seven pathways conducted in 2009. This study summarizes key results, parameters, and sensitivities to those parameters for the 10 hydrogen pathways, reporting on the levelized cost of hydrogen in 2007 U.S. dollars as well as life-cycle well-to-wheels energy use and GHG emissions associated with the pathways.

  3. Polylithiated (OLi2) functionalized graphane as a potential hydrogen storage material

    E-Print Network [OSTI]

    Hussain, Tanveer; De Sarkar, Abir; Ahuja, Rajeev

    2012-01-01T23:59:59.000Z

    Hydrogen storage capacity, stability, bonding mechanism and the electronic structure of polylithiated molecules (OLi2) functionalized graphane (CH) has been studied by means of first principle density functional theory (DFT). Molecular dynamics (MD) have confirmed the stability, while Bader charge analysis describe the bonding mechanism of OLi2 with CH. The binding energy of OLi2 on CH sheet has been found to be large enough to ensure its uniform distribution without any clustering. It has been found that each OLi2 unit can adsorb up to six H2 molecules resulting into a storage capacity of 12.90 wt% with adsorption energies within the range of practical H2 storage application.

  4. Carbide-Derived Carbons with Tunable Porosity Optimized for Hydrogen Storage

    SciTech Connect (OSTI)

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

    2010-01-07T23:59:59.000Z

    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.

  5. Microporous Materials Strategies for Hydrogen Storage in MetalOrganic

    E-Print Network [OSTI]

    Yaghi, Omar M.

    efficiency fuel-cell power sources. The vehicles should have a similar range (480 km or 300 miles), operate times the gravimetric energy density of petrol, and fuel cells are expected to perform at least twice at improving hydrogen uptake in these materials is presented. These strategies include the optimization of pore

  6. Hydrogen Storage DOI: 10.1002/anie.200700303

    E-Print Network [OSTI]

    Goddard III, William A.

    to enhance the hydrogen adsorption energy. We consider five organic linkers: BDC (MOF-C6), NDC (MOF-C10), PDC (MOF-C16), PDC1 (MOF-C22), and PDC2 (MOF-C30), where the MOFs are named according to the number

  7. New Pathways and Metrics for Enhanced, Reversible Hydrogen Storage in Boron-Doped Carbon Nanospaces

    SciTech Connect (OSTI)

    Pfeifer, Peter [University of Missouri; Wexler, Carlos [University of Missouri; Hawthorne, M. Frederick [University of Missouri; Lee, Mark W. [University of Missouri; Jalistegi, Satish S. [University of Missouri

    2014-08-14T23:59:59.000Z

    This project, since its start in 2007entitled Networks of boron-doped carbon nanopores for low-pressure reversible hydrogen storage (2007-10) and New pathways and metrics for enhanced, reversible hydrogen storage in boron-doped carbon nanospaces (2010-13)is in support of the DOE's National Hydrogen Storage Project, as part of the DOE Hydrogen and Fuel Cells Programs comprehensive efforts to enable the widespread commercialization of hydrogen and fuel cell technologies in diverse sectors of the economy. Hydrogen storage is widely recognized as a critical enabling technology for the successful commercialization and market acceptance of hydrogen powered vehicles. Storing sufficient hydrogen on board a wide range of vehicle platforms, at energy densities comparable to gasoline, without compromising passenger or cargo space, remains an outstanding technical challenge. Of the main three thrust areas in 2007metal hydrides, chemical hydrogen storage, and sorption-based hydrogen storagesorption-based storage, i.e., storage of molecular hydrogen by adsorption on high-surface-area materials (carbons, metal-organic frameworks, and other porous organic networks), has emerged as the most promising path toward achieving the 2017 DOE storage targets of 0.055 kg H2/kg system (5.5 wt%) and 0.040 kg H2/liter system. The objective of the project is to develop high-surface-area carbon materials that are boron-doped by incorporation of boron into the carbon lattice at the outset, i.e., during the synthesis of the material. The rationale for boron-doping is the prediction that boron atoms in carbon will raise the binding energy of hydro- gen from 4-5 kJ/mol on the undoped surface to 10-14 kJ/mol on a doped surface, and accordingly the hydro- gen storage capacity of the material. The mechanism for the increase in binding energy is electron donation from H2 to electron-deficient B atoms, in the form of sp2 boron-carbon bonds. Our team is proud to have demonstrated the predicted increase in binding energy experimentally, currently at ~10 kJ/mol. The synthetic route for incorporation of boron at the outset is to create appropriately designed copoly- mers, with a boron-free and a boron-carrying monomer, followed by pyrolysis of the polymer, yielding a bo- ron-substituted carbon scaffold in which boron atoms are bonded to carbon atoms by synthesis. This is in contrast to a second route (funded by DE-FG36-08GO18142) in which first high-surface area carbon is cre- ated and doped by surface vapor deposition of boron, with incorporation of the boron into the lattice the final step of the fabrication. The challenge in the first route is to create high surface areas without compromising sp2 boron-carbon bonds. The challenge in the second route is to create sp2 boron-carbon bonds without com- promising high surface areas.

  8. NASA Perspectives on Cryo H2 DOE Hydrogen Storage Workshop

    E-Print Network [OSTI]

    -space, MMOD protection) -Vapor/cryocooler cooled shields - Sun shades - Low conductivity/ cooled support propellant - Inventory (Bookkeeping) - Pressure-volume-temperature (PVT) - High accuracy low-g techniques;7 NASA Cryogenic Technology Objectives To develop storage and distribution technologies for cryogens

  9. High-pressure Storage Vessels for Hydrogen, Natural Gas andHydrogen...

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

    September 27 - 29, 2010, in Beijing, China. ihfpvlynch.pdf More Documents & Publications Properties, Behavior and Material Compatibility of Hydrogen, Natural Gas and Blends -...

  10. Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles

    Broader source: Energy.gov [DOE]

    This document describes the basis for the technical targets for onboard hydrogen storage for light-duty vehicles in the FCT Programs Multiyear Research, Development and Demonstration Plan. A detailed explanation of each target is given in the following pages.

  11. Metalized T graphene: A reversible hydrogen storage material at room temperature

    SciTech Connect (OSTI)

    Ye, Xiao-Juan; Zhong, Wei, E-mail: csliu@njupt.edu.cn, E-mail: wzhong@nju.edu.cn; Du, You-Wei [Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093 (China); Liu, Chun-Sheng, E-mail: csliu@njupt.edu.cn, E-mail: wzhong@nju.edu.cn [Key Laboratory of Radio Frequency and Micro-Nano Electronics of Jiangsu Province, Nanjing University of Posts and Telecommunications, Nanjing 210023 (China); Zeng, Zhi [Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031 (China)

    2014-09-21T23:59:59.000Z

    Lithium (Li)-decorated graphene is a promising hydrogen storage medium due to its high capacity. However, homogeneous mono-layer coating graphene with lithium atoms is metastable and the lithium atoms would cluster on the surface, resulting in the poor reversibility. Using van der Waals-corrected density functional theory, we demonstrated that lithium atoms can be homogeneously dispersed on T graphene due to a nonuniform charge distribution in T graphene and strong hybridizations between the C-2p and Li-2p orbitals. Thus, Li atoms are not likely to form clusters, indicating a good reversible hydrogen storage. Both the polarization mechanism and the orbital hybridizations contribute to the adsorption of hydrogen molecules (storage capacity of 7.7 wt. %) with an optimal adsorption energy of 0.19 eV/H?. The adsorption/desorption of H? at ambient temperature and pressure is also discussed. Our results can serve as a guide in the design of new hydrogen storage materials based on non-hexagonal graphenes.

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

    E-Print Network [OSTI]

    at Savannah River National Laboratory (Don Anton and Bruce Hardy, SRNL) Based on the operating conditionsHydrogen Storage Systems Analysis Working Group Meeting Argonne National Laboratory DC Offices 955 by Romesh Kumar Argonne National Laboratory and Laura Verduzco Sentech, Inc. February 28, 2007 #12;SUMMARY

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

    E-Print Network [OSTI]

    Yaghi, Omar M.

    Storage of Hydrogen, Methane, and Carbon Dioxide in Highly Porous Covalent Organic Frameworks, and carbon dioxide isotherm measurements were performed at 1-85 bar and 77-298 K on the evacuated forms for COF-5, 65 mg g-1 for COF-6, 87 mg g-1 for COF-8, and 80 mg g-1 for COF-10; carbon dioxide at 298 K

  14. Carborane-Based Metal-Organic Framework with High Methane and Hydrogen Storage Capacities

    E-Print Network [OSTI]

    Carborane-Based Metal-Organic Framework with High Methane and Hydrogen Storage Capacities Robert D of Chemical & Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 of Pennsylvania, Philadelphia, Pennsylvania 19104, United States *S Supporting Information ABSTRACT: A Cu-carborane-based

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

    E-Print Network [OSTI]

    , engineering, and optimization of reactors, including consideration of hybrid approaches, materials properties of a hybrid (elevated pressure, lowered temperature) activated carbon hydrogen storage system. Representatives, and thermal management; and life-cycle analyses, including energy balances, life-cycle costs, environmental

  16. Lithium-decorated oxidized graphyne for hydrogen storage by first principles study

    SciTech Connect (OSTI)

    Yan, Zeyu; Wang, Lang; Cheng, Julong; Huang, Libei; Zhu, Chao; Chen, Chi; Miao, Ling, E-mail: miaoling@mail.hust.edu.cn; Jiang, Jianjun [School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China)

    2014-11-07T23:59:59.000Z

    The geometric stability and hydrogen storage capacity of Li decorated oxidized ?-graphyne are studied based on the first-principles calculations. It is found that oxygen atoms trend to bond with acetylenic carbons and form C=O double bonds on both sides of graphyne. The binding energy of single Li atom on oxidized graphyne is 3.29?eV, owning to the strong interaction between Li atom and O atom. Meanwhile, the dispersion of Li is stable even under a relatively high density. One attached Li atom can at least adsorb six hydrogen molecules around. Benefitting from the porous structure of graphyne and the high attached Li density, a maximum hydrogen storage density 12.03?wt. % is achieved with four Li atoms in graphyne cell. The corresponding average binding energy is 0.24?eV/H{sub 2}, which is suitable for reversible storage. These results indicate that Li decorated graphyne can serve as a promising hydrogen storage material.

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

    SciTech Connect (OSTI)

    Hua, T. Q.; Ahluwalia, R. K.; Peng, J. K.; Kromer, M.; Lasher, S.; McKenney, K.; Law, K.; Sinha, J. (Nuclear Engineering Division); (TIAX, LLC)

    2011-02-09T23:59:59.000Z

    The performance and cost of compressed hydrogen storage tank systems has been assessed and compared to the U.S. Department of Energy (DOE) 2010, 2015, and ultimate targets for automotive applications. The on-board performance and high-volume manufacturing cost were determined for compressed hydrogen tanks with design pressures of 350 bar ({approx}5000 psi) and 700 bar ({approx}10,000 psi) capable of storing 5.6 kg of usable hydrogen. The off-board performance and cost of delivering compressed hydrogen was determined for hydrogen produced by central steam methane reforming (SMR). The main conclusions of the assessment are that the 350-bar compressed storage system has the potential to meet the 2010 and 2015 targets for system gravimetric capacity but will not likely meet any of the system targets for volumetric capacity or cost, given our base case assumptions. The 700-bar compressed storage system has the potential to meet only the 2010 target for system gravimetric capacity and is not likely to meet any of the system targets for volumetric capacity or cost, despite the fact that its volumetric capacity is much higher than that of the 350-bar system. Both the 350-bar and 700-bar systems come close to meeting the Well-to-Tank (WTT) efficiency target, but fall short by about 5%. These results are summarized.

  18. A life cycle cost analysis framework for geologic storage of hydrogen : a scenario analysis.

    SciTech Connect (OSTI)

    Kobos, Peter Holmes; Lord, Anna Snider; Borns, David James

    2010-10-01T23:59:59.000Z

    The U.S. Department of Energy has an interest in large scale hydrogen geostorage, which would offer substantial buffer capacity to meet possible disruptions in supply. Geostorage options being considered are salt caverns, depleted oil/gas reservoirs, aquifers and potentially hard rock cavrns. DOE has an interest in assessing the geological, geomechanical and economic viability for these types of hydrogen storage options. This study has developed an ecocomic analysis methodology to address costs entailed in developing and operating an underground geologic storage facility. This year the tool was updated specifically to (1) a version that is fully arrayed such that all four types of geologic storage options can be assessed at the same time, (2) incorporate specific scenarios illustrating the model's capability, and (3) incorporate more accurate model input assumptions for the wells and storage site modules. Drawing from the knowledge gained in the underground large scale geostorage options for natural gas and petroleum in the U.S. and from the potential to store relatively large volumes of CO{sub 2} in geological formations, the hydrogen storage assessment modeling will continue to build on these strengths while maintaining modeling transparency such that other modeling efforts may draw from this project.

  19. A candidate LiBH4 for hydrogen storage: Crystal structures and reaction mechanisms of intermediate phases

    E-Print Network [OSTI]

    Goddard III, William A.

    combustion engine for transporta- tion. A hydrogen fuel cell car needs to store at least 4 kg hydrogenA candidate LiBH4 for hydrogen storage: Crystal structures and reaction mechanisms of intermediate phases Jeung Ku Kanga and Se Yun Kim Department of Materials Science and Engineering, KAIST, Daejeon 305

  20. Strain induced lithium functionalized graphane as a high capacity hydrogen storage material

    E-Print Network [OSTI]

    Hussain, Tanveer; Ahuja, Rajeev

    2012-01-01T23:59:59.000Z

    Strain effects on the stability, electronic structure, and hydrogen storage capacity of lithium-doped graphane (CHLi) have been investigated by stateof-the art first principle density functional theory (DFT). Molecular dynamics MD) simulations have confirmed the stability of Li on graphane sheet when it is subject to 10% of tensile strain. Under biaxial asymmetric strain, the binding energy of Li of graphane (CH) sheet increases by 52% with respect to its bulk's cohesive energy. With 25% doping concentration of Li on CH sheet,the gravimetric density of hydrogen storage is found to reach up to 12.12wt%. The adsorption energies of H2 are found to be within the range of practical H2 storage applications.

  1. Hydrogen storage for vehicular applications: Technology status and key development areas

    SciTech Connect (OSTI)

    Robinson, S.L.; Handrock, J.L.

    1994-04-01T23:59:59.000Z

    The state-of-the-art of hydrogen storage technology is reviewed, including gaseous, liquid, hydride, surface adsorbed media, glass microsphere, chemical reaction, and liquid chemical technologies. The review of each technology includes a discussion of advantages, disadvantages, likelihood of success, and key research and development activities. A preferred technological path for the development of effective near-term hydrogen storage includes both cur-rent DOT qualified and advanced compressed storage for down-sized highly efficient but moderate range vehicles, and liquid storage for fleet vehicle applications. Adsorbate media are also suitable for fleet applications but not for intermittent uses. Volume-optimized transition metal hydride beds are also viable for short range applications. Long-term development of coated nanoparticulate or metal matrix high conductivity magnesium alloy, is recommended. In addition, a room temperature adsorbate medium should be developed to avoid cryogenic storage requirements. Chemical storage and oxidative schemes present serious obstacles which must be addressed for these technologies to have a future role.

  2. Chemical Hydrogen Storage Research and Development | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the YouTube platformBuilding RemovalCSSDepartment of Energy5-4-20129Burner AirHydrogen

  3. On-Site and Bulk Hydrogen Storage | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently Asked QuestionsDepartmentGas and Oil ResearchEnergyOn October 18th, theHydrogen

  4. Hydrogen Storage Research and Development Activities | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To:Department ofOral Testimony ofMonitoring,HydrogenofHydrogen

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

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To:Department ofOral Testimony ofMonitoring,HydrogenofHydrogen| Department

  6. Gaseous and Liquid Hydrogen Storage | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdf Flash2006-52.pdf0.pdfDepartment ofEnergyGE-ProlecGTO 2013Gas-FiredHydrogen

  7. Hydrogen Energy Storage for Grid and Transportation Services Workshop |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe SolarContamination Detector WorkshopHydrogen Energy

  8. Hydrogen Storage Testing and Analysis Research and Development | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe SolarContaminationCurrent Technology » HydrogenHydrogenof

  9. Hydrogen Electrochemical Energy Storage Device - Energy Innovation Portal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School footballHydrogen and Fuel CellFew-Layer Graphene |Vehicles and

  10. Hydrogen Storage "Think Tank" Report

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a r r c c h h

  11. Hydrogen Storage Grand Challenge Centers of Excellence | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a r r c c h

  12. Hydrogen Storage Grand Challenge Individual Projects | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a r r c c

  13. Hydrogen Storage Materials Workshop Proceedings Workshop, October 16th,

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a r r c2002 |

  14. Hydrogen Storage Pre-Solicitation Meeting Attendee List | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a r r c2002

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a r r

  16. Hydrogen Storage Systems Analysis Working Group Meeting: Summary Report |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a r

  17. Hydrogen Storage Systems Analysis Working Group Meeting: Summary Report |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a rDepartment

  18. Hydrogen Storage Technologies: Long-Term Commercialization Approach with

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a a

  19. Hydrogen Storage at Lawrence Berkeley National Laboratory | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M a

  20. Hydrogen Storage in Wind Turbine Towers: Cost Analysis and Conceptual

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet), GeothermalGridHYDROGEND D eReview |Panel HydrogenM M aDesign |

  1. Increasing Renewable Energy with Hydrogen Storage and Fuel Cell Technologies

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(Fact Sheet),EnergyImprovement of theResponses to PublicHydrogen Energy

  2. Yttrium-dispersed C{sub 60} fullerenes as high-capacity hydrogen storage medium

    SciTech Connect (OSTI)

    Tian, Zi-Ya; Dong, Shun-Le, E-mail: dongshunle2013@hotmail.com [Department of Physics, Ocean University of China, Qingdao 266100 (China)] [Department of Physics, Ocean University of China, Qingdao 266100 (China)

    2014-02-28T23:59:59.000Z

    Interaction between hydrogen molecules and functionalized C{sub 60} is investigated using density functional theory method. Unlike transition metal atoms that tend to cluster on the surface, C{sub 60} decorated with 12 Yttrium atoms on each of its 12 pentagons is extremely stable and remarkably enhances the hydrogen adsorption capacity. Four H{sub 2} molecules can be chemisorbed on a single Y atom through well-known Dewar-Chatt-Duncanson interaction. The nature of bonding is a weak physisorption for the fifth adsorbed H{sub 2} molecule. Consequently, the C{sub 60}Y{sub 12} complex with 60 hydrogen molecules has been demonstrated to lead to a hydrogen storage capacity of ?6.30wt.%.

  3. Hydrogen storage in LiH: A first principle study

    SciTech Connect (OSTI)

    Banger, Suman, E-mail: sumanphy28@gmail.com; Nayak, Vikas, E-mail: sumanphy28@gmail.com; Verma, U. P., E-mail: sumanphy28@gmail.com [School of Studies in Physics, Jiwaji University, Gwalior-474011 (India)

    2014-04-24T23:59:59.000Z

    First principles calculations have been performed on the Lithium hydride (LiH) using the full potential linearized augmented plane wave (FP-LAPW) method within the framework of density functional theory. We have extended our calculations for LiH+2H and LiH+6H in NaCl structure. The structural stability of three compounds have been studied. It is found that LiH with 6 added Hydrogen atoms is most stable. The obtained results for LiH are in good agreement with reported experimental data. Electronic structures of three compounds are also studied. Out of three the energy band gap in LiH is ?3.0 eV and LiH+2H and LiH+6H are metallic.

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

    SciTech Connect (OSTI)

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

    2010-10-01T23:59:59.000Z

    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%.

  5. High-Throughput Screening of Mg-Functionalized Metal-Organic Frameworks for Hydrogen Storage near Room Temperature

    E-Print Network [OSTI]

    Coln, Yamil J.; Fairen-Jimenez, David; Wilmer, Christopher E.; Snurr, Randall Q.

    2014-01-01T23:59:59.000Z

    The hydrogen storage capabilities of 18,383 porous crystalline structures possessing various degrees of Mg functionalization and diverse physical properties were assessed through combined grand canonical Monte Carlo (GCMC) and quantum mechanical...

  6. Nancy Garland DOE Hydrogen Program

    E-Print Network [OSTI]

    commercialization decision by 2015 Fuel cell vehicles in showroom and hydrogen at fuel stations by 2020 #12;Hydrogen, and distributed combined heat and power applications. #12;DOE Hydrogen Program Budget $544DOT $37,301Earmarks (EE,830$30,000$29,432Storage R&D (EE) $14,363$25,325$22,564Production & Delivery R&D (EE) FY 05 Appropriations* ($000) FY 05

  7. OPTIMIZATION OF INTERNAL HEAT EXCHANGERS FOR HYDROGEN STORAGE TANKS UTILIZING METAL HYDRIDES

    SciTech Connect (OSTI)

    Garrison, S.; Tamburello, D.; Hardy, B.; Anton, D.; Gorbounov, M.; Cognale, C.; van Hassel, B.; Mosher, D.

    2011-07-14T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

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

    2006-01-01T23:59:59.000Z

    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.

  9. Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation

    DOE Patents [OSTI]

    Lilga, M.A.; Hallen, R.T.

    1990-08-28T23:59:59.000Z

    The present invention constitutes a class of organometallic complexes which reversibly react with hydrogen to form dihydrides and processes by which these compounds can be utilized. The class includes bimetallic complexes in which two cyclopentadienyl rings are bridged together and also separately [pi]-bonded to two transition metal atoms. The transition metals are believed to bond with the hydrogen in forming the dihydride. Transition metals such as Fe, Mn or Co may be employed in the complexes although Cr constitutes the preferred metal. A multiple number of ancillary ligands such as CO are bonded to the metal atoms in the complexes. Alkyl groups and the like may be substituted on the cyclopentadienyl rings. These organometallic compounds may be used in absorption/desorption systems and in facilitated transport membrane systems for storing and separating out H[sub 2] from mixed gas streams such as the producer gas from coal gasification processes. 3 figs.

  10. Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation

    DOE Patents [OSTI]

    Lilga, Michael A. (Richland, WA); Hallen, Richard T. (Richland, WA)

    1991-01-01T23:59:59.000Z

    The present invention constitutes a class of organometallic complexes which reversibly react with hydrogen to form dihydrides and processes by which these compounds can be utilized. The class includes bimetallic complexes in which two cyclopentadienyl rings are bridged together and also separately .pi.-bonded to two transition metal atoms. The transition metals are believed to bond with the hydrogen in forming the dihydride. Transition metals such as Fe, Mn or Co may be employed in the complexes although Cr constitutes the preferred metal. A multiple number of ancilliary ligands such as CO are bonded to the metal atoms in the complexes. Alkyl groups and the like may be substituted on the cyclopentadienyl rings. These organometallic compounds may be used in absorption/desorption systems and in facilitated transport membrane systems for storing and separating out H.sub.2 from mixed gas streams such as the product gas from coal gasification processes.

  11. Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation

    DOE Patents [OSTI]

    Lilga, M.A.; Hallen, R.T.

    1991-10-15T23:59:59.000Z

    The present invention constitutes a class of organometallic complexes which reversibly react with hydrogen to form dihydrides and processes by which these compounds can be utilized. The class includes bimetallic complexes in which two cyclopentadienyl rings are bridged together and also separately [pi]-bonded to two transition metal atoms. The transition metals are believed to bond with the hydrogen in forming the dihydride. Transition metals such as Fe, Mn or Co may be employed in the complexes although Cr constitutes the preferred metal. A multiple number of ancillary ligands such as CO are bonded to the metal atoms in the complexes. Alkyl groups and the like may be substituted on the cyclopentadienyl rings. These organometallic compounds may be used in absorption/desorption systems and in facilitated transport membrane systems for storing and separating out H[sub 2] from mixed gas streams such as the product gas from coal gasification processes. 3 figures.

  12. Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation

    DOE Patents [OSTI]

    Lilga, Michael A. (Richland, WA); Hallen, Richard T. (Richland, WA)

    1990-01-01T23:59:59.000Z

    The present invention constitutes a class of organometallic complexes which reversibly react with hydrogen to form dihydrides and processes by which these compounds can be utilized. The class includes bimetallic complexes in which two cyclopentadienyl rings are bridged together and also separately .pi.-bonded to two transition metal atoms. The transition metals are believed to bond with the hydrogen in forming the dihydride. Transition metals such as Fe, Mn or Co may be employed in the complexes although Cr constitutes the preferred metal. A multiple number of ancilliary ligands such as CO are bonded to the metal atoms in the complexes. Alkyl groups and the like may be substituted on the cyclopentadienyl rings. These organometallic compounds may be used in absorption/desorption systems and in facilitated transport membrane systems for storing and separating out H.sub.2 from mixed gas streams such as the produce gas from coal gasification processes.

  13. NREL Wind to Hydrogen Project: Renewable Hydrogen Production...

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

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

  14. Sealing off a carbon nanotube with a self-assembled aqueous valve for the storage of hydrogen in GPa pressure

    E-Print Network [OSTI]

    Chen, H Y; Gong, X G; Liu, Zhi-Feng

    2012-01-01T23:59:59.000Z

    The end section of a carbon nanotube, cut by acid treatment, contains hydrophillic oxygen groups. Water molecules can self-assemble around these groups to seal off a carbon nanotube and form an "aqueous valve". Molecular dynamics simulations on single-wall (12,12) and (15,15) tubes with dangling carboxyl groups show that the formation of aqueous valves can be achieved both in the absence of and in the presence of high pressure hydrogen. Furthermore, significant diffusion barriers through aqueous valves are identified. It indicates that such valves could hold hydrogen inside the tube with GPa pressure. Releasing hydrogen is easily achieved by melting the "aqueous valve". Such a design provides a recyclable and non- destructive way to store hydrogen in GPa pressure. Under the storage conditions dictated by sealing off the container in liquid water, the hydrogen density inside the container is higher than that for solid hydrogen, which promises excellent weight storage efficiency.

  15. Abstract--A novel methodology for economic evaluation of hydrogen storage for a mixed wind-nuclear power plant is

    E-Print Network [OSTI]

    Cañizares, Claudio A.

    -nuclear power plant is presented in this article in a context of a "Hydrogen Economy". The simulation power plant production (MW) NP : nuclear power plant production (MW) CP : electrolyzer consumption (MW, IEEE THE FEASIBILITY OF HYDROGEN STORAGE FOR MIXED WIND-NUCLEAR POWER PLANTS #12;price scenario p

  16. Discovery of Novel Complex Metal Hydrides for Hydrogen Storage through Molecular Modeling and Combinatorial Methods

    SciTech Connect (OSTI)

    Lesch, David A; Adriaan Sachtler, J.W. J.; Low, John J; Jensen, Craig M; Ozolins, Vidvuds; Siegel, Don

    2011-02-14T23:59:59.000Z

    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

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

    E-Print Network [OSTI]

    . For high-pressure storage at ambient temperatures, the M3[(M4Cl)3(BTT)8]2 (M-BTT; BTT3- = 1 applications is of paramount importance due to the increasing atmospheric levels of CO2 resulting fromImpact of Metal and Anion Substitutions on the Hydrogen Storage Properties of MBTT Metal

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreaking of Blythe SolarContaminationCurrent Technology » Hydrogen

  19. Hydrogen storage in LiAlH4 : Predictions of the crystal structures and reaction mechanisms of intermediate phases from quantum mechanics

    E-Print Network [OSTI]

    Goddard III, William A.

    Hydrogen storage in LiAlH4 : Predictions of the crystal structures and reaction mechanisms in decomposition of the potential hydrogen storage material LiAlH4 . First, we explore the decomposition mechanism of monoclinic LiAlH4 into monoclinic Li3AlH6 plus face-centered cubic fcc Al and hydrogen. We find

  20. Final Report: Main Group Element Chemistry in Service of Hydrogen Storage and Activation

    SciTech Connect (OSTI)

    David A. Dixon; Anthony J. Arduengo, III

    2010-09-30T23:59:59.000Z

    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

  1. Hydrogen storage and carbon dioxide capture in an iron-based sodalite-type metalorganic framework (Fe-BTT) discovered via high-throughput methods

    E-Print Network [OSTI]

    Hydrogen storage and carbon dioxide capture in an iron-based sodalite-type metalorganic framework/or volumetric capacities that approach the U.S. Department of Energy targets2 for mobile hydrogen storage storage capacity of 1.1 wt% and 8.4 g L1 at 100 bar and 298 K. Powder neutron diffraction experiments

  2. DOE's Hydrogen and Fuel Cells Technologies Manufacturing

    E-Print Network [OSTI]

    Advanced fuel cell testing & diagnostics Wet Direct coated Anode #1 Direct coated Anode #2 Control Anode #3DOE's Hydrogen and Fuel Cells Technologies Manufacturing Sub-program Nancy L. Garland, Ph.D. U for fuel cells, and hydrogen production, delivery, and storage; grow the domestic supplier base

  3. Templated synthesis of nickel nanoparticles: Toward heterostructured nanocomposites for efficient hydrogen storage

    SciTech Connect (OSTI)

    Nelson, Nicholas Cole [Ames Laboratory

    2013-05-07T23:59:59.000Z

    The world is currently facing an energy and environmental crisis for which new technologies are needed. Development of cost-competitive materials for catalysis and hydrogen storage on-board motor vehicles is crucial to lead subsequent generations into a more sustainable and energy independent future. This thesis presents work toward the scalable synthesis of bimetallic heterostructures that can enable hydrogen to compete with carbonaceous fuels by meeting the necessary gravimetric and volumetric energy densities and by enhancing hydrogen sorption/desorption kinetics near ambient temperatures and pressures. Utilizing the well-known phenomenon of hydrogen spillover, these bimetallic heterostructures could work by lowering the activation energy for hydrogenation and dehydrogenation of metals. Herein, we report a novel method for the scalable synthesis of silica templated zero-valent nickel particles (Ni?SiO{sub 2}) that hold promise for the synthesis of nickel nanorods for use in bimetallic heterostructures for hydrogen storage. Our synthesis proceeds by chemical reduction of a nickel-hydrazine complex with sodium borohydride followed by calcination under hydrogen gas to yield silica encapsulated nickel particles. Transmission electron microscopy and powder X-ray diffraction were used to characterize the general morphology of the resultant nanocapsules as well as the crystalline phases of the incorporated Ni{sup 0} nanocrystals. The structures display strong magnetic behavior at room temperature and preliminary data suggests nickel particle size can be controlled by varying the amount of nickel precursor used in the synthesis. Calcination under different environments and TEM analysis provides evidence for an atomic migration mechanism of particle formation. Ni?SiO{sub 2} nanocapsules were used as seeds to induce heterogeneous nucleation and subsequent growth within the nanocapsule via electroless nickel plating. Nickel nanoparticle growth occurs under high temperature alkaline conditions, however silica nanocapsule integrity is not maintained due to the incompatibility of silica with the growth conditions. Silica nanocapsule integrity is maintained under low temperature neutral conditions, but nickel particle growth is not observed. Through FTIR and UV/Vis analysis, we show the degree of crosslinking and condensation increases in calcined silica compared to as-synthesized silica. We propose the increased density of the silica nanocapsule hinders mass transfer of the bulky nickel precursor complex from solution and onto the surface of the catalytic zero-valent nickel seed within the nanocapsule cavity. Decreasing the density of the silica nanocapsule can be achieved through co-condensation of tetraethylorthosilicate with an alkyl functionalized silane followed by calcination to remove the organic component or by chemical etching in alkaline solution, but will not be addressed in this thesis.

  4. Hydrogen combustion in an MCO during interim storage (fauske and associates report 99-14)

    SciTech Connect (OSTI)

    PLYS, M.G.

    1999-05-12T23:59:59.000Z

    Flammable conditions are not expected to develop in an MCO during interim storage. This report considers potential phenomena which, although not expected t o occur, could lead t o flammable conditions. For example, reactions of hydrogen w i t h fuel over decades a r e postulated t o lead t o flammable atmospheric mixtures. For the extreme cases considered in this report, the highest attainable post-combustion pressure is about 13 atmospheres absolute, almost a factor of two and a half below the MCO design pressure of 31 atmospheres.

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

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm)Hydrogen Storage in Carbon Nanotubes Through Formation of

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

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm)Hydrogen Storage in Carbon Nanotubes Through Formation

  7. In-Situ Neutron Diffraction Studies of Complex Hydrogen Storage Materials

    SciTech Connect (OSTI)

    Yelon, William B.

    2013-05-13T23:59:59.000Z

    The thrust of this project was to investigate the structures of important materials with potential application to hydrogen storage, in an effort to meet the DOE goals for 2010 and 2015, namely 9% (wt) and 15% (wt) respectively. Unfortunately, no material has been found, despite the efforts of many laboratories, including our own, that achieves these goals in a reversible complex hydride such as ammonia borane (NH{sub 4}BH{sub 4}), and other ammonia based compounds, or with light hydrides such as LiBH{sub 4}, due either to their irreversibility or to the high decomposition temperatures and residual simple hydrides such as LiH from the decomposition of the last named compound. Nevertheless, several important technical goals have been accomplished that could be valuable to other DOE programs and would be available for collaborative research. These include the development of a high quality glove box with controlled (low) oxygen and water content, which we continue to employ for the synthesis of potential new materials (unfunded research) and the development of a high quality neutron diffraction furnace with controlled gas environment for studies of hydrogen uptake and loss as well as for studies with other gasses. This furnace was initially constructed with an alumina (Al{sub 2}O{sub 3}) center tube to contain the sample and the flowing gas. The heaters are located in the vacuum space outside the tube and it was found that, for the low temperatures required for the study of hydrogen storage materials, the heat transfer was too poor to allow good control. At temperatures in excess of about 400C (and up to more than 1200C) the heat transfer and control are excellent. For the lower temperatures, however, the center tube was replaced by stainless steel and temperature control to 1C became possible. The paired heaters, above and below the neutron beam window allowed control of the temperature gradient to a similar precision. The high temperature capability of the furnace should make it a very valuable resource for the study of oxides being considered for application to solid oxide fuel cells (SOFCs), in that materials can be studied at potential operating temperatures in both reducing and oxidizing environments to determine their stoichiometry, and lattice parameters. Our research, which was predicated, in part, on the use of hydrogenous samples (as opposed to deuteration), demonstrated that such studies are feasible and can yield high quality, refinable data. The precision of the refined hydrogen positions appears to be more than adequate for theory calculations (molecular modeling-thermodynamics) and the uncertainty is certainly less than that achieved by attempting to extrapolate the hydrogen positions from refined deuterium positions. In fact the 2008 annual report from the Institute Laue Langevin (ILL), the world's premier neutron scattering laboratory, highlights: Another trend is the increasing interest in hydrogen. This defies the widespread assumption that neutron diffraction experiments need to be done at deuterated samples. In situ experiments on phase transitions involving hydrogen and in particular on the real time behaviour of hydrogen-storage systems increase in number and scope. Our work in this area predates the ILL efforts be several years. Unfortunately, the productivity of our program was significantly curtailed by the unavailability of the MURR powder diffractometer for almost all of the second years of the project. The diffractometer was disassembled to allow partial extraction of the beam tube and replacement of the graphite element that is penetrated by the beam tube. Re-commissioning of the instrument was substantially delayed by errors of the MURR engineering staff, which failed to properly reinstall the sapphire filter that conditions the beam prior to the neutron monochromator, and reduces the radiological background to acceptable levels.

  8. Lifecycle Analysis of Air Quality Impacts of Hydrogen and Gasoline Transportation Fuel Pathways

    E-Print Network [OSTI]

    Wang, Guihua

    2008-01-01T23:59:59.000Z

    SMR production with gaseous hydrogen pipeline delivery, andhydrogen: gaseous hydrogen pipeline vs. liquid hydrogenproduction with gaseous hydrogen pipeline delivery systems;

  9. Rational Material Architecture Design for Better Energy Storage

    E-Print Network [OSTI]

    Chen, Zheng

    2012-01-01T23:59:59.000Z

    and their cryogenic hydrogen storage capacities. J. Phys.Hydrogen Spillover for Hydrogen Storage J. Am. Chem. Soc.electrostatic energy storage, hydrogen (H 2 )-based chemical

  10. Explorations of Novel Energy Conversion and Storage Systems

    E-Print Network [OSTI]

    Duffin, Andrew Mark

    2010-01-01T23:59:59.000Z

    Vehicular Hydrogen Storage http://www.hydrogen.energy.gov/et al. , Reversible hydrogen storage in calcium borohydridereversible hydrogen storage. Chemical Communications, 2010.

  11. Technology and Manufacturing Readiness of Early Market Motive and Non-Motive Hydrogen Storage Technologies for Fuel Cell Applications

    SciTech Connect (OSTI)

    Ronnebro, Ewa

    2012-06-16T23:59:59.000Z

    PNNLs objective in this report is to provide DOE with a technology and manufacturing readiness assessment to identify hydrogen storage technologies maturity levels for early market motive and non-motive applications and to provide a path forward toward commercialization. PNNLs Technology Readiness Assessment (TRA) is based on a combination of Technology Readiness Level (TRL) and Manufacturing Readiness Level (MRL) designations that enable evaluation of hydrogen storage technologies in varying levels of development. This approach provides a logical methodology and roadmap to enable the identification of hydrogen storage technologies, their advantages/disadvantages, gaps and R&D needs on an unbiased and transparent scale that is easily communicated to interagency partners. The TRA report documents the process used to conduct the TRA, reports the TRL and MRL for each assessed technology and provides recommendations based on the findings.

  12. Hydrogen Storage in metal-modified single-walled carbon nanotubes

    SciTech Connect (OSTI)

    Dr. Ahn

    2004-04-30T23:59:59.000Z

    It has been known for over thirty years that potassium-intercalated graphites can readily adsorb and desorb hydrogen at {approx}1 wt% at 77 K. These levels are much higher than can be attained in pure graphite, owing to a larger thermodynamic enthalpy of adsorption. This increased enthalpy may allow hydrogen sorption at higher temperatures. Potassium has other beneficial effects that enable the design of a new material: (a) Increased adsorption enthalpy in potassium-intercalated graphite compared to pure graphite reduces the pressure and increases the temperature required for a given fractional coverage of hydrogen adsorption. We expect the same effects in potassium-intercalated SWNTs. (b) As an intercalant, potassium separates c-axis planes in graphite. Potassium also separates the individual tubes of SWNTs ropes producing swelling and increased surface area. Increased surface area provides more adsorption sites, giving a proportionately higher capacity. The temperature of adsorption depends on the enthalpy of adsorption. The characteristic temperature is roughly the adsorption enthalpy divided by Boltzmann's constant, k{sub B}. For the high hydrogen storage capacity of SWNTs to be achieved at room temperature, it is necessary to increase the enthalpy of adsorption. Our goal for this project was to use metal modifications to the carbon surface of SWNTs in order to address both enhanced adsorption and surface area. For instance, the enthalpy of sorption of hydrogen on KC8 is 450 meV/H{sub 2}, whereas it is 38 meV/H{sub 2} for unmodified SWNTs. By adsorption thermodynamics we expect approximately that the same performance of SWNTs at 77 K will be achieved at a temperature of [450/38] 77 K = 900 K. This is a high temperature, so we expect that adsorption on nearly all the available sites for hydrogen will occur at room temperature under a much lower pressure. This pressure can be estimated conveniently, since the chemical potential of hydrogen is approximately proportional to the logarithm of the pressure. Using 300 K for room temperature, the 100 bar pressure requirement is reduced to exp(-900/300) 100 bar = 5 bar at room temperature. This is in the pressure range used for prior experimental work such as that of Colin and Herold in the late 1960's and early 1970's.

  13. antiretroviral treatment delivery: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    12;Hydrogen Delivery Options Gaseous hydrogen - Pipelines, corrosion Gaseous hydrogen pipeline delivery program would share similar technology R&D areas novel pigs to...

  14. adenoviral gene delivery: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    12;Hydrogen Delivery Options Gaseous hydrogen - Pipelines, corrosion Gaseous hydrogen pipeline delivery program would share similar technology R&D areas novel pigs to...

  15. Improved Hydrogen Storage Performance of MgH2-LiAlH4 Composite by Addition of MnFe2O4

    E-Print Network [OSTI]

    Volinsky, Alex A.

    Improved Hydrogen Storage Performance of MgH2-LiAlH4 Composite by Addition of MnFe2O4 Qi Wan, Ping States *S Supporting Information ABSTRACT: The catalytic effects of MnFe2O4 nanoparticles on the hydrogen storage properties of MgH2-LiAlH4, prepared by ball milling, are studied for the first time. The hydrogen

  16. Polymer Stable Magnesium Nanocomposites Prepared by Laser Ablation for Efficient Hydrogen Storage

    E-Print Network [OSTI]

    Makridis, S S; Panagakos, G; Kikkinides, E S; Stubos, A K; Wagener, P; Barcikowski, S

    2013-01-01T23:59:59.000Z

    Hydrogen is a promising alternative energy carrier that can potentially facilitate the transition from fossil fuels to sources of clean energy because of its prominent advantages such as high energy density (142 MJ per kg), great variety of potential sources (for example water, biomass, organic matter), and low environmental impact (water is the sole combustion product). However, due to its light weight, the efficient storage of hydrogen is still an issue investigated intensely. Various solid media have been considered in that respect among which magnesium hydride stands out as a candidate offering distinct advantages. Recent theoretical work indicates that MgH2 becomes less thermodynamically stable as particle diameter decreases below 2 nm. Our DFT (density functional theory) modeling studies have shown that the smallest enthalpy change, corresponding to 2 unit-cell thickness (1.6 {\\AA} Mg/3.0{\\AA} MgH2) of the film, is 57.7 kJ/molMg. This enthalpy change is over 10 kJ per molMg smaller than that of the bulk...

  17. US DOE Hydrogen and Fuel Cell Technology - Composites in H2 Storage and Delivery

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group current C3E Ambassadors and U.S.MANAGEMENTNotice forFederalof EnergyDOE

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

    SciTech Connect (OSTI)

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

    2012-01-10T23:59:59.000Z

    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.

  19. Estimating changes in urban ozone concentrations due to life cycle emissions from hydrogen transportation systems

    E-Print Network [OSTI]

    Wang, Guihua; Ogden, Joan M; Chang, Daniel P.Y.

    2007-01-01T23:59:59.000Z

    production with gaseous hydrogen pipeline delivery, and2) central hydrogen production with pipeline delivery; and (Central hydrogen production with pipeline delivery systems

  20. SYSTEMS MODELING OF AMMONIA BORANE BEAD REACTOR FOR OFF-BOARD REGENERABLE HYDROGEN STORAGE IN PEM FUEL CELL APPLICATIONS

    SciTech Connect (OSTI)

    Brooks, Kriston P.; Devarakonda, Maruthi N.; Rassat, Scot D.; King, Dale A.; Herling, Darrell R.

    2010-06-01T23:59:59.000Z

    Out of the materials available for chemical hydrogen storage in PEM fuel cell applications, ammonia borane (AB, NH3BH3) has a high hydrogen storage capacity (upto 19.6% by weight for the release of three hydrogen molecules). Therefore, AB was chosen in our chemical hydride simulation studies. A model for the AB bead reactor system was developed to study the system performance and determine the energy, mass and volume requirements for off-board regenerable hydrogen storage. The system includes hot and cold augers, ballast tank and reactor, product tank, H2 burner and a radiator. 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 the reactor system. Control signals to various components are governed by a control system which is modeled as an independent subsystem. Various subsystem components in the models were coded as C language S-functions and implemented in Matlab/Simulink environment. Preliminary system simulation results for a start-up case and for a transient drive cycle indicate accurate trends in the reactor system dynamics.

  1. The U.S. Department of Energy Hydrogen Delivery Mark Paster

    E-Print Network [OSTI]

    1999. #12;0 10 20 30 40 50 60 70 80 90 100 CO NOx VOC SOx PM10 PM2.5 CO2 Electricity Buildings Industry Transportation Biomass Water Hydro Wind Solar Geothermal Coal Nuclear Natural Gas WithCarbonSequestration HIGH that can reduce pollution and our dependence on foreign oil until long-term technologies like hydrogen fuel

  2. Membraneless hydrogen bromine laminar flow battery for large-scale energy storage

    E-Print Network [OSTI]

    Braff, William Allan

    2014-01-01T23:59:59.000Z

    Electrochemical energy storage systems have been considered for a range of potential large-scale energy storage applications. These applications vary widely, both in the order of magnitude of energy storage that is required ...

  3. Multi-fuel reformers for fuel cells used in transportation: Assessment of hydrogen storage technologies. Phase 2: Final report

    SciTech Connect (OSTI)

    NONE

    1995-05-01T23:59:59.000Z

    During Phase 1 of this program, the authors evaluated all known hydrogen storage technologies (including those that are now practiced and those that are development) in the context of fuel cell vehicles. They determined that among the development technologies, carbon sorbents could most benefit from closer scrutiny. During Phase 2 of this program, they tested ten different carbon sorbents at various practical temperatures and pressures, and developed the concept of the usable Capacity Ratio, which is the ratio of the mass of hydrogen that can be released from a carbon-filled tank to the mass of hydrogen that can be released from an empty tank. The authors also commissioned the design, fabrication, and NGV2 (Natural Gas Vehicle) testing of an aluminum-lined, carbon-composite, full-wrapped pressure vessel to store hydrogen at 78 K and 3,000 psi. They constructed a facility to pressure cycle the tank at 78 K and to temperature cycle the tank at 3,000 psi, tested one such tank, and submitted it for a burst test. Finally, they devised a means by which cryogenic compressed hydrogen gas tanks can be filled and discharged using standard hardware--that is, without using filters, valves, or pressure regulators that must operate at both low temperature and high pressure. This report describes test methods and test results of carbon sorbents and the design of tanks for cold storage. 7 refs., 91 figs., 10 tabs.

  4. HYDROGEN STORAGE SOLUTIONS IN SUPPORT OF DOD WARFIGHTER PORTABLE POWER APPLICATIONS

    SciTech Connect (OSTI)

    Motyka, T.

    2009-01-06T23:59:59.000Z

    From Personal Digital Assistants (PDAs) to cell phones our high-tech world, today, is demanding smaller, lighter weight and higher capacity portable power devices. Nowhere has this personal power surge been more evident than in today's U.S Warfighter. The modern Warfighter is estimated to carry from 65 to 95 pounds of supplies in the field with over 30 pounds of this dedicated to portable power devices. These devices include computer displays, infrared sights, Global Positioning Systems (GPS), night vision and a variety of other sensor technologies. Over 80% of the energy needed to power these devices comes from primary (disposable) batteries. It is estimated that a brigade will consume as much as 7 tons of batteries in a 72 hour mission at a cost of $700,000. A recent comprehensive study on the energy needs of the future warrior published by the National Academy of Science in 2004 made a variety of recommendations for average power systems from 20 to 1,000 watts. For lower power systems recommendations included pursuing science and technology initiatives focused on: (1) 300 watt-hours per kilogram (Wh/kg) secondary battery technologies; (2) smart hybrids; and (3) fuel cells (with greater than 6 wt% hydrogen storage). Improved secondary (rechargeable) batteries may be the ideal solution for military power systems due to their ease of use and public acceptance. However, a 3X improvement in their specific energy density is not likely anytime soon. Today's Lithium Ion batteries, at about 150 Wh/kg, fall well short of the energy density that is required. Future battery technology may not be the answer since many experts do not predict more than a 2X improvement in Lithium battery systems over the next 10 years. That is why most auto companies have abandoned all electric vehicles in favor of fuel cells and hybrid vehicles. Fuel cells have very high specific energy densities but achieving high energy values will depend on the energy density and the storage method of its fuel. Improved methods of safely and efficiently storing larger amounts of hydrogen will be a key development area for portable fuel cell power systems. Despite their high potential energy, fuel cells exhibit low power densities. That is why many systems today are going hybrid. Hybrid systems typically combine low energy and high power components with high energy and low power components. Typical configurations include capacitors and fuel cells or batteries and fuel cells. If done correctly, a hybrid system often can have both high energy and high power density even higher than any of the individual components.

  5. Hydrogen as a transportation fuel: Costs and benefits

    SciTech Connect (OSTI)

    Berry, G.D.

    1996-03-01T23:59:59.000Z

    Hydrogen fuel and vehicles are assessed and compared to other alternative fuels and vehicles. The cost, efficiency, and emissions of hydrogen storage, delivery, and use in hybrid-electric vehicles (HEVs) are estimated. Hydrogen made thermochemically from natural gas and electrolytically from a range of electricity mixes is examined. Hydrogen produced at central plants and delivered by truck is compared to hydrogen produced on-site at filling stations, fleet refueling centers, and residences. The impacts of hydrogen HEVs, fueled using these pathways, are compared to ultra-low emissions gasoline internal-combustion-engine vehicles (ICEVs), advanced battery-powered electric vehicles (BPEVs), and HEVs using gasoline or natural gas.

  6. Electrochemical hydrogen storage alloys and batteries fabricated from Mg containing base alloys

    DOE Patents [OSTI]

    Ovshinsky, Stanford R. (Bloomfield Hills, MI); Fetcenko, Michael A. (Rochester Hills, MI)

    1996-01-01T23:59:59.000Z

    An electrochemical hydrogen storage material comprising: (Base Alloy).sub.a M.sub.b where, Base Alloy is an alloy of Mg and Ni in a ratio of from about 1:2 to about 2:1, preferably 1:1; M represents at least one modifier element chosen from the group consisting of Co, Mn, Al, Fe, Cu, Mo, W, Cr, V, Ti, Zr, Sn, Th, Si, Zn, Li, Cd, Na, Pb, La, Mm, and Ca; b is greater than 0.5, preferably 2.5, atomic percent and less than 30 atomic percent; and a+b=100 atomic percent. Preferably, the at least one modifier is chosen from the group consisting of Co, Mn, Al, Fe, and Cu and the total mass of the at least one modifier element is less than 25 atomic percent of the final composition. Most preferably, the total mass of said at least one modifier element is less than 20 atomic percent of the final composition.

  7. Comparing air quality impacts of hydrogen and gasoline

    E-Print Network [OSTI]

    Sperling, Dan; Wang, Guihua; Ogden, Joan M.

    2008-01-01T23:59:59.000Z

    production and gaseous hydrogen pipeline delivery systems (ratios relative to the hydrogen pipeline pathway Pollutantvia SMR with gaseous hydrogen pipeline delivery, and central

  8. DOE Hydrogen Program: 2006 Annual Merit Review and Peer Evaluation Report

    SciTech Connect (OSTI)

    Milliken, J.

    2006-09-01T23:59:59.000Z

    This report summarizes comments from the Peer Review Panel at the FY 2006 DOE Hydrogen Program Annual Merit Review, held on May 16-19, 2006, in Arlington, Virginia. The projects evaluated support the Department of Energy and President Bush's Hydrogen Initiative. The results of this merit review and peer evaluation are major inputs used by DOE to make funding decisions. Project areas include hydrogen production and delivery; hydrogen storage; fuel cells; technology validation; safety, codes and standards; education; and systems analysis.

  9. DOE Hydrogen Program: 2005 Annual Merit Review and Peer Evaluation Report

    SciTech Connect (OSTI)

    Chalk, S. G.

    2005-09-01T23:59:59.000Z

    This report summarizes comments from the Peer Review Panel at the FY 2005 DOE Hydrogen Program Annual Merit Review, held on May 23-26, 2005, in Arlington, Virginia. The projects evaluated support the Department of Energy and President Bush's Hydrogen Initiative. The results of this merit review and peer evaluation are major inputs used by DOE to make funding decisions. Project areas include hydrogen production and delivery; hydrogen storage; fuel cells; technology validation; safety, codes and standards; education; and systems analysis.

  10. Liquid Hydrogen Production and Delivery from a Dedicated Wind Power Plant |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetterEconomy and EmissionsDepartment of Energy Hydrogen

  11. anti-hiv sirna delivery: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    12;Hydrogen Delivery Options Gaseous hydrogen - Pipelines, corrosion Gaseous hydrogen pipeline delivery program would share similar technology R&D areas novel pigs to...

  12. adenovirus-mediated gene delivery: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    12;Hydrogen Delivery Options Gaseous hydrogen - Pipelines, corrosion Gaseous hydrogen pipeline delivery program would share similar technology R&D areas novel pigs to...

  13. accurate sobp delivery: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Painter, Kevin 19 Hydrogen Delivery Mark Paster Renewable Energy Websites Summary: Hydrogen Delivery Goal LiquidH2&Chem.CarriersGaseous Pipeline Truck Hydrides Liquid H2 -...

  14. aerosol delivery aad: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Painter, Kevin 24 Hydrogen Delivery Mark Paster Renewable Energy Websites Summary: Hydrogen Delivery Goal LiquidH2&Chem.CarriersGaseous Pipeline Truck Hydrides Liquid H2 -...

  15. avtip delivery order: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Painter, Kevin 25 Hydrogen Delivery Mark Paster Renewable Energy Websites Summary: Hydrogen Delivery Goal LiquidH2&Chem.CarriersGaseous Pipeline Truck Hydrides Liquid H2 -...

  16. adaptive aerosol delivery: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Painter, Kevin 45 Hydrogen Delivery Mark Paster Renewable Energy Websites Summary: Hydrogen Delivery Goal LiquidH2&Chem.CarriersGaseous Pipeline Truck Hydrides Liquid H2 -...

  17. aerial dispersant delivery: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Painter, Kevin 72 Hydrogen Delivery Mark Paster Renewable Energy Websites Summary: Hydrogen Delivery Goal LiquidH2&Chem.CarriersGaseous Pipeline Truck Hydrides Liquid H2 -...

  18. adenoviral transgene delivery: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Painter, Kevin 64 Hydrogen Delivery Mark Paster Renewable Energy Websites Summary: Hydrogen Delivery Goal LiquidH2&Chem.CarriersGaseous Pipeline Truck Hydrides Liquid H2 -...

  19. arthritis boron delivery: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Painter, Kevin 58 Hydrogen Delivery Mark Paster Renewable Energy Websites Summary: Hydrogen Delivery Goal LiquidH2&Chem.CarriersGaseous Pipeline Truck Hydrides Liquid H2 -...

  20. Identification of a new pseudo-binary hydroxide during calendar corrosion of (La, Mg)2Ni7-type hydrogen storage alloys for Nickel-Metal Hydride batteries

    E-Print Network [OSTI]

    Boyer, Edmond

    hydrogen storage alloys for Nickel-Metal Hydride batteries J. Monnier 1 , H. Chen 1 , S. Joiret2,3 , J-MH batteries have been extensively studied during calendar storage and cycling [6-8]. In these alloys To improve the performances of Nickel-Metal Hydride batteries, an important step is the understanding

  1. Sandia National Laboratories: Sandia hydrogen program

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    hydrogen program Energy Department Awards 7M to Advance Hydrogen Storage Systems On June 12, 2014, in CRF, Energy, Energy Storage, Energy Storage Systems, Facilities,...

  2. Sandia National Laboratories: understanding hydrogen components

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    hydrogen components Energy Department Awards 7M to Advance Hydrogen Storage Systems On June 12, 2014, in CRF, Energy, Energy Storage, Energy Storage Systems, Facilities,...

  3. Sandia National Laboratories: material interactions with hydrogen

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    material interactions with hydrogen Energy Department Awards 7M to Advance Hydrogen Storage Systems On June 12, 2014, in CRF, Energy, Energy Storage, Energy Storage Systems,...

  4. Sandia National Laboratories: accelerate hydrogen infrastructure...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    accelerate hydrogen infrastructure technologies Energy Department Awards 7M to Advance Hydrogen Storage Systems On June 12, 2014, in CRF, Energy, Energy Storage, Energy Storage...

  5. Hydrogen delivery onto white dwarfs from remnant exo-Oort cloud comets

    E-Print Network [OSTI]

    Veras, Dimitri; Gaensicke, Boris T

    2014-01-01T23:59:59.000Z

    The origin of trace hydrogen in white dwarfs (WDs) with He-dominated atmospheres is a long-standing problem, one that cannot satisfactorily be explained by the historically-favoured hypothesis of accretion from the interstellar medium. Here we explore the possibility that the gradual accretion of exo-Oort cloud comets, which are a rich source of H, contributes to the apparent increase of trace H with WD cooling age. We determine how often remnant exo-Oort clouds, freshly excited from post-main-sequence stellar mass loss, dynamically inject comets inside the WD's Roche radius. We improve upon previous studies by considering a representative range of single WD masses (0.52-1.00 Solar masses) and incorporating different cloud architectures, giant branch stellar mass loss, stellar flybys, Galactic tides and a realistic escape ellipsoid in self-consistent numerical simulations that integrate beyond 8 Gyr ages of WD cooling. We find that about 10^{-5} of the material in an exo-Oort cloud is typically amassed onto t...

  6. DOE Carbon-based Hydrogen Storage Center of Excellence: Center Highlights and NREL Activities (Presentation)

    SciTech Connect (OSTI)

    Blackburn, J. L.; Curtis, C.; Davis, M.; Dillon, A. C.; Engtrakul, C.; Gennett, T.; Heben, M. J.; Jones, K. M.; Kim, Y.-H.; Parilla, P. A.; Simpson, L. J.; Whitney, E. S.; Zhang, S. B.; Zhao, Y.

    2006-05-01T23:59:59.000Z

    Presented at the 2006 DOE Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Merit Review in Washington, D.C., May 16-19, 2006.

  7. R&D of Large Stationary Hydrogen/CNG/HCNG Storage Vessels

    Broader source: Energy.gov [DOE]

    These slides were presented at the International Hydrogen Fuel and Pressure Vessel Forum on September 27 29, 2010, in Beijing, China.

  8. DOE Hydrogen and Fuel Cells Program Record 9017: On-Board Hydrogen...

    Broader source: Energy.gov (indexed) [DOE]

    9017: On-Board Hydrogen Storage Systems - Projected Performance and Cost Parameters DOE Hydrogen and Fuel Cells Program Record 9017: On-Board Hydrogen Storage Systems - Projected...

  9. DOE to Invest up to $8.2 Million for Hydrogen Storage Research...

    Office of Environmental Management (EM)

    storage, production, and polymer electrolyte membrane fuel cells, which deliver high-power density and offer low-weight and volume, compared to other fuel cells. Four projects...

  10. A Joint Theory and Experimental Project in the Synthesis and Testing of Porous COFs for On-Board Vehicular Hydrogen Storage

    SciTech Connect (OSTI)

    Yaghi, Omar M. [University of California - Los Angeles] [University of California - Los Angeles; Goddard, William A. [California Institute of Technology] [California Institute of Technology

    2013-06-29T23:59:59.000Z

    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) densities to be achieved by 2015. From our continuous efforts on hydrogen storage, it is believed that metalation of highly porous solids with high-valence metals is promising and provides a rational direction to realize high volumetric hydrogen density near room temperature. This grant was focused on the study of high surface area covalent organic frameworks (COFs) with these specific objectives (1) to introduce potential metal binding sites through the COF synthesis and (2) to implement metalation experiments and evaluate their respective hydrogen adsorption properties. To maximize our efforts, simulation calculations were also performed (prior to experiments) for the prediction of binding enthalpy of hydrogen for molecular building units containing transition metals and promising COF structures to increase volumetric hydrogen uptake at room temperature. In this effort, first molecular building units with optimal binding energy for hydrogen storage (20 kJ/mol) were designed by quantum mechanical (QM) methods. Employing these results, it was revealed that one of metalated COFs takes up 60 g/L (total) of H2 at 100 bar and 298 K. To realize proposed COF structures, chemistry of COF synthesis has been developed; for instance, new air stable COFs were synthesized via hydrazone (COF-41 to 43) and imine condensation (COF-301, 320, 340, and 366) and some of them were tested the effect on metalation. Finally, a new triazine COF with high volumetric hydrogen uptake capacity was presented as a proposed future direction.

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

    DOE Patents [OSTI]

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

    2008-01-08T23:59:59.000Z

    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.

  12. DOE Hydrogen Sorption Center of Excellence: Synthesis and Processing of Single-Walled Carbon Nanohorns for Hydrogen Storage and Catalyst Supports

    SciTech Connect (OSTI)

    David B. Geohegan; Hui Hu; Mina Yoon; Alex A. Puretzky; Christopher M. Rouleau; Norbert Thonnard; Gerd Duscher; Karren More

    2011-05-24T23:59:59.000Z

    The objective of the project was to exploit the unique morphology, tunable porosity and excellent metal supportability of single-walled carbon nanohorns (SWNHs) to optimize hydrogen uptake and binding energy through an understanding of metal-carbon interactions and nanoscale confinement. SWNHs provided a unique material to understand these effects because they are carbon nanomaterials which are synthesized from the 'bottom-up' with well-defined, sub-nm pores and consist of single-layer graphene, rolled up into closed, conical, horn-shaped units which form ball-shaped aggregates of {approx}100-nm diameter. SWNHs were synthesized without metal catalysts by the high-temperature vaporization of solid carbon, so they can be used to explore metal-free hydrogen storage. However, SWNHs can also be decorated with metal nanoparticles or coatings in post-processing treatments to understand how metals augment hydrogen storage. The project first explored how the synthesis and processing of SWNHs could be modified to tailor pore sizes to optimal size ranges. Nanohorns were rapidly synthesized at 20g/hr rates by high-power laser vaporization enabling studies such as neutron scattering with gram quantities. Diagnostics of the synthesis process including high-speed videography, fast pyrometry of the graphite target, and differential mobility analysis monitoring of particle size distributions were applied in this project to provide in situ process control of SWNH morphology, and to understand the conditions for different pore sizes. We conclude that the high-temperature carbon-vaporization process to synthesize SWNHs is scalable, and can be performed by electric arc or other similar techniques as economically as carbon can be vaporized. However, the laser vaporization approach was utilized in this project to permit the precise tuning of the synthesis process through adjustment of the laser pulse width and repetition rate. A result of this processing control in the project was to eliminate the large (2-3 nm) internal pores of typical SWNHs which were found not to store hydrogen effectively. Post processing treatments of the as-synthesized SWNHs focused on pore size, surface area, and metal decoration in order to understand the effects of each on measured hydrogen uptake. Wet chemistry and gas-phase oxidation treatments were developed throughout the life of the project to adjust the interstitial and slit pore sizes of the as-produced SWNHs, and increase the surface area to a maximum value of 2200 m2/g. In addition, wet chemistry approaches were used to develop methods to decorate the nanohorns with small Pt and Pd nanoparticles for metal-assisted hydrogen storage. Finally, oxygen-free decoration of SWNHs with alkaline earth metals (Ca) was developed using pulsed laser deposition and vacuum evaporation in order to produce surface coatings with high static electric fields sufficient to polarize and bind dihydrogen. Decoration of SWNHs with Pt and Pd nanoparticles resulted in enhanced binding energy (NREL, 36 kJ/mol), as well as enhancement in the room temperature uptake of 0.6 wt.% (for undecorated, oxidized, pure-C SWNHs at 20 bar), to 1.6 wt% for Pt- and Pd-decorated SWNHs at 100 bar, comparable to MOF-177 materials. NIST neutron scattering on gram quantity Pt- and Pd-decorated SWNHs showed clear evidence for 'spillover' type losses of molecular hydrogen and determined the onset temperature for this effect to be between 150K < T < 298K.High (2142 m2/g) surface area SWNH materials with variable pore sizes and metal-decorated SWNHs were demonstrated with metals (Pt, Pd) resulting in increased excess storage (3.5 wt. % at 77K). Compression results in bulk SWNH samples with density 1.03 g/cm3, and 30 g/L volumetric capacity. In summary, SWNHs were found to be unique carbon nanomaterials which can be produced continuously at high rates from vaporization of pure carbon. Their inherent pore structure exhibits significant room temperature hydrogen storage in sub-nm pores, and their morphology serves as an excellent metal catalyst support for

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

    Broader source: Energy.gov (indexed) [DOE]

    "Stochastically accelerated molecular dynamics and application to H diffusion on graphene". 10:55 - 11:20 am Mei-Yin Chou (Georgia Tech), "Catalytic effect of Ti for hydrogen...

  14. Technical Assessment of Cryo-Compressed Hydrogen Storage Tank Systems for Automotive Applications

    Fuel Cell Technologies Publication and Product Library (EERE)

    Technical report describing DOE's second assessment report on a third generation (Gen3) system capable of storing hydrogen at cryogenic temperatures within a pressure vessel on-board a vehicle. The re

  15. US DOE Hydrogen and Fuel Cell Technology - Composites in H2 Storage...

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

    PhD Representing: U.S. Department of Energy Fuel Cell Technologies Office 4 Hydrogen and Fuel Cells Program Overview Mission: Enable widespread commercialization of a portfolio of...

  16. Vehicle Technologies Office Merit Review 2014: Hydrogen Fuel-Cell Electric Hybrid Truck & Zero Emission Delivery Vehicle Deployment

    Broader source: Energy.gov [DOE]

    Presentation given by Houston-Galvelston Area Council at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about hydrogen fuel...

  17. Graphene-based Material Systems for Nanoelectronics and Energy Storage Devices

    E-Print Network [OSTI]

    Guo, Shirui

    2012-01-01T23:59:59.000Z

    Nanostructures for Hydrogen Storage" Nano Letters 2010, 10,for Enhanced Hydrogen Storage" Nano Letters 2008, 8, (137)for Enhanced Hydrogen Storage" Nano Letters 2008, M. D.

  18. Hydrogen Cylinder Storage Array Explosion Evaluations at the High Flux Isotope Reactor

    SciTech Connect (OSTI)

    Cook, David Howard [ORNL] [ORNL; Griffin, Frederick P [ORNL] [ORNL; Hyman III, Clifton R [ORNL] [ORNL

    2010-01-01T23:59:59.000Z

    The safety analysis for a recently-installed cold neutron source at the High Flux Isotope Reactor (HFIR) involved evaluation of potential explosion consequences from accidental hydrogen jet releases that could occur from an array of hydrogen cylinders. The scope of the safety analysis involved determination of the release rate of hydrogen, the total quantity of hydrogen assumed to be involved in the explosion, the location of an ignition point or center of the explosion from receptors of interest, and the peak overpressure at the receptors. To evaluate the total quantity of hydrogen involved in the explosion, a 2D model was constructed of the jet concentration and a radial-axial integral over the jet cloud from the centerline to the flammability limit of 4% was used to determine the hydrogen mass to be used as a source term. The location of the point source was chosen as the peak of the jet centerline concentration profile. Consequences were assessed using a combination of three methods for estimating local overpressure as a function of explosion source strength and distance: the Baker-Strehlow method, the TNT-equivalence method, and the TNO method. Results from the explosions were assessed using damage estimates in screening tables for buildings and industrial equipment.

  19. Characterization of the Hydrogen-Bromine Flow Battery for Electrical Energy Storage

    E-Print Network [OSTI]

    Kreutzer, Haley Maren

    2012-05-31T23:59:59.000Z

    A low-cost and efficient electrical energy storage system is needed to implement intermittent renewable energy sources such as solar and wind while maintaining grid reliability, and could also reduce the use of inefficient peak-load electrical...

  20. Safety Evaluation Report: Development of Improved Composite Pressure Vessels for Hydrogen Storage, Lincoln Composites, Lincoln, NE, May 25, 2010

    SciTech Connect (OSTI)

    Fort, III, William C.; Kallman, Richard A.; Maes, Miguel; Skolnik, Edward G.; Weiner, Steven C.

    2010-12-22T23:59:59.000Z

    Lincoln Composites operates a facility for designing, testing, and manufacturing composite pressure vessels. Lincoln Composites also has a U.S. Department of Energy (DOE)-funded project to develop composite tanks for high-pressure hydrogen storage. The initial stage of this project involves testing the permeation of high-pressure hydrogen through polymer liners. The company recently moved and is constructing a dedicated research/testing laboratory at their new location. In the meantime, permeation tests are being performed in a corner of a large manufacturing facility. The safety review team visited the Lincoln Composites site on May 25, 2010. The project team presented an overview of the company and project and took the safety review team on a tour of the facility. The safety review team saw the entire process of winding a carbon fiber/resin tank on a liner, installing the boss and valves, and curing and painting the tank. The review team also saw the new laboratory that is being built for the DOE project and the temporary arrangement for the hydrogen permeation tests.