Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Graphene Activated Magnesium Diboride for Moderate Pressure and Temperature Hydrogenation to Magnesium Borohydride

Journal Article · · ACS Applied Energy Materials
The hydrogenation conditions of magnesium diboride (MgB2) to magnesium borohydride (Mg(BH4)2) can be significantly enhanced through the discovery of improved modifiers. This study demonstrates that the modification of MgB2 by mechanical milling with graphene nanoplatelets significantly reduces the hydrogenation conditions of MgB2 from 900 bar and 400 degrees C for pure MgB2 to 400 bar and 300 degrees C while achieving 77% conversion to Mg(BH4)2. The introduction of the graphene additives coupled with milling leads to a reduction of the temperature and pressure required for bulk hydrogenation by 100 degrees C and 500 bar, respectively, from that of pure MgB2. The identification of graphene additives that drastically improve the hydrogenation conditions of MgB2 represents an important step toward improving hydrogen uptake kinetics to Mg(BH4)2.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Hydrogen Fuel Cell Technologies Office (HFTO)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
2522743
Report Number(s):
NREL/JA-5900-91002; MainId:92780; UUID:5042a38d-ba70-4bbb-9a7e-9519aa121da5; MainAdminId:75534
Journal Information:
ACS Applied Energy Materials, Journal Name: ACS Applied Energy Materials Journal Issue: 2 Vol. 8
Country of Publication:
United States
Language:
English

References (42)

Understanding electronic structure tunability by metal dopants for promoting MgB2 hydrogenation journal January 2024
Dehydriding and rehydriding processes of well-crystallized Mg(BH4)2 accompanying with formation of intermediate compounds journal April 2008
Phenomenological model of anisotropic peak broadening in powder diffraction journal April 1999
Effects of ball milling and additives on dehydriding behaviors of well-crystallized Mg(BH4)2 journal October 2007
A dynamic calibration technique for temperature programmed desorption spectroscopy journal February 2013
Hydrogenation via a low energy mechanochemical approach: the MgB 2 case journal August 2021
Reversibility and Improved Hydrogen Release of Magnesium Borohydride journal February 2010
Direct hydrogenation of magnesium boride to magnesium borohydride: demonstration of >11 weight percent reversible hydrogenstorage journal January 2010
Reactive Vapor-Phase Additives toward Destabilizing γ-Mg(BH4)2 for Improved Hydrogen Release journal January 2022
Lewis Base Complexes of Magnesium Borohydride: Enhanced Kinetics and Product Selectivity upon Hydrogen Release journal December 2017
Hydrogen storage properties of Mg[BH4]2 journal July 2008
Synthesis and properties of magnesium tetrahydroborate, Mg(BH4)2 journal January 2007
Selective Reversible Hydrogenation of Mg(B 3 H 8 ) 2 /MgH 2 to Mg(BH 4 ) 2 : Pathway to Reversible Borane-Based Hydrogen Storage? journal March 2015
Facile synthesis and regeneration of Mg(BH 4 ) 2 by high energy reactive ball milling of MgB 2 journal January 2013
Recent progress in magnesium borohydride Mg(BH4)2: Fundamentals and applications for energy storage journal August 2016
Nanoscale Mg–B via Surfactant Ball Milling of MgB 2 : Morphology, Composition, and Improved Hydrogen Storage Properties journal September 2020
A Density Functional Study of α-Mg(BH 4 ) 2 journal August 2008
Nanostructure-induced hydrogenation of layered compound MgB2 journal September 2010
Effect of several metal chlorides on the thermal decomposition behaviour of α-Mg(BH4)2 journal September 2011
Elucidating the mechanism of MgB 2 initial hydrogenation via a combined experimental–theoretical study journal January 2017
High Pressure Single Crystal Diffraction at PX^2 journal January 2017
A hydride composite featuring mutual destabilisation and reversible boron exchange: Ca(BH 4 ) 2 –Mg 2 NiH 4 journal January 2018
Methylamine Magnesium Borohydrides as Electrolytes for All-Solid-State Magnesium Batteries journal January 2023
Kinetic Enhancement of Direct Hydrogenation of MgB 2 to Mg(BH 4 ) 2 upon Mechanical Milling with THF, MgH 2 , and/or Mg journal March 2019
Synthesis of amorphous Mg(BH4)2 from MgB2 and H2 at room temperature journal October 2010
Understanding Hydrogenation Chemistry at MgB 2 Reactive Edges from Ab Initio Molecular Dynamics journal March 2022
Hydrogen Storage in Partially Exfoliated Magnesium Diboride Multilayers journal December 2022
The influence of LiH and TiH2 on hydrogen storage in MgB2 II. XPS study of surface and near-surface phenomena journal January 2022
Controllable decomposition of Ca(BH 4 ) 2 for reversible hydrogen storage journal January 2017
Thermal Decomposition of Magnesium Borohydride: New Insights from Synchrotron X-ray Scattering journal December 2022
The influence of LiH and TiH2 on hydrogen storage in MgB2 I: Promotion of bulk hydrogenation at reduced temperature journal January 2022
Challenges to developing materials for the transport and storage of hydrogen journal October 2022
Magnesium borohydride Mg(BH4)2 for energy applications: A review journal October 2023
Development of group II borohydrides as hydrogen storage materials journal April 2011
Interfacial Insight from Operando XAS/TEM for Magnesium Metal Deposition with Borohydride Electrolytes journal August 2017
Complex Hydrides for Hydrogen Storage journal October 2007
Inducing One‐Step Dehydrogenation of Magnesium Borohydride via Confinement in Robust Dodecahedral Nitrogen‐Doped Porous Carbon Scaffold journal July 2024
Complex hydrides for energy storage journal March 2019
Differential Scanning Calorimetry Measurements of Magnesium Borohydride Mg(BH4)2 journal January 2008
Hydrogen storage properties of γ–Mg(BH4)2 modified by MoO3 and TiO2 journal September 2015
Reversible dehydrogenation of magnesium borohydride to magnesium triborane in the solid state under moderate conditions journal January 2011
DIOPTAS : a program for reduction of two-dimensional X-ray diffraction data and data exploration journal May 2015

Similar Records

Direct Hydrogenation Magnesium Boride to Magnesium Borohydride: Demonstration of >11 Weight Percent Reversible Hydrogen Storage
Journal Article · Mon Nov 15 23:00:00 EST 2010 · Chemical Communications, 46(3):421-423 · OSTI ID:972526

Melting of Magnesium Borohydride under High Hydrogen Pressure: Thermodynamic Stability and Effects of Nanoconfinement
Journal Article · Tue Jul 14 00:00:00 EDT 2020 · Chemistry of Materials · OSTI ID:1673309

Melting of Magnesium Borohydride under High Hydrogen Pressure: Thermodynamic Stability and Effects of Nanoconfinement
Journal Article · Thu Jun 04 00:00:00 EDT 2020 · Chemistry of Materials · OSTI ID:1665874