Process for synthesis of ammonia borane for bulk hydrogen storage

摘要

The present invention discloses new methods for synthesizing ammonia borane (NH₃BH₃, or AB). Ammonium borohydride (NH₄BH₄) 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.