Synthesis of ammonia borane for hydrogen storage applications

David J. Heldebrant; Abhi Karkamkar; John C. Linehan; Tom Autrey

doi:10.1039/b808865a

Synthesis of ammonia borane for hydrogen storage applications

David J. Heldebrant, Abhi Karkamkar, John C. Linehan, Tom Autrey

Pacific Northwest National Laboratory

Research output: Contribution to journal › Article

78 Citations (Scopus)

Abstract

A new synthetic procedure to make the condensed phase hydrogen storage material, ammonia borane (NH₃BH₃, abbreviated as AB), is described and compared with previous literature procedures. Ammonia borane with a gravimetric density ca. 194 gm H₂ kg^-1 and a volumetric density ca. 146 H₂ litre^-1, is a promising chemical hydrogen storage material for fuel cell powered applications. The work shows that ammonium borohydride, NH₄BH₄, formed in situ by the metathesis of NH₄X and MBH₄ salts (M = Na, Li; X = Cl, F) in liquid NH₃, can be induced to decompose in an organic ether to yield AB in near quantitative yield. The purity of the AB prepared by this one-pot synthetic strategy is sufficient to meet the thermal stability requirements for on-board hydrogen storage.

Original language	English
Pages (from-to)	156-160
Number of pages	5
Journal	Energy and Environmental Science
Volume	1
Issue number	1
DOIs	https://doi.org/10.1039/b808865a
Publication status	Published - Dec 1 2008

ASJC Scopus subject areas

Environmental Chemistry
Renewable Energy, Sustainability and the Environment
Nuclear Energy and Engineering
Pollution

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Heldebrant, D. J., Karkamkar, A., Linehan, J. C., & Autrey, T. (2008). Synthesis of ammonia borane for hydrogen storage applications. Energy and Environmental Science, 1(1), 156-160. https://doi.org/10.1039/b808865a

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