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

Journal Article · · Chemical Communications, 46(3):421-423
DOI:https://doi.org/10.1039/b921205a· OSTI ID:972526
We here for the first time demonstrate direct hydrogenation of magnesium boride, MgB2, to magnesium borohydride, Mg(BH4)2 at 900 bar H2-pressures and 400°C. Upon 14.8wt% hydrogen release, the end-decomposition product of Mg(BH4)2 is MgB2, thus, this is a unique reversible path here obtaining >11wt% H2 which implies promise for a fully reversible hydrogen storage material.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
972526
Report Number(s):
PNNL-SA-68707; EB4202000
Journal Information:
Chemical Communications, 46(3):421-423, Journal Name: Chemical Communications, 46(3):421-423 Journal Issue: 3 Vol. 46
Country of Publication:
United States
Language:
English