Patent ID: 9145296
Filing Date: 2015-09-29
Classification: C01B,Y02E

Abstract:
1. A method for storing and releasing hydrogen from a mass of particles of a mixed transition metal and alkali metal borohydride compound, where hydrogen is to be released from the mass of boron-containing particles upon a demand for hydrogen in a hydrogen-using application, the mixed transition metal-alkali metal borohydride compound tending to release diborane as it releases hydrogen; the method comprising: mixing particles of a metal hydride with the mass of mixed transition metal-alkali metal borohydride compound particles to form a mass of mixed hydrogen storage particles; storing the mass of mixed hydrogen storage particles at a temperature and in a chemical environment to minimize release of hydrogen until there is a demand for the hydrogen in the mixed hydrogen storage particles; and, upon such demand heating the mass of mixed hydrogen storage particles to a temperature above the storage temperature to release hydrogen for delivery to the hydrogen-using application while hydrogen is demanded; the composition and amount of the metal hydride mixed into the mass of hydrogen storage particles serving to react with boron from the mixed transition metal-alkali metal borohydride compound particles to form a solid metal boride and to suppress release of diborane as hydrogen is released from the heated mixed hydrogen storage particles.