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Process for synthesis of ammonia borane for bulk hydrogen storage

United States Patent

March 1, 2011
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
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.
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)
Battelle Memorial Institute (Richland, WA)
12/ 431,496
April 28, 2009
GOVERNMENT SUPPORT This invention was made with Government support under Contract DE-AC0676RLO-1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.