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AssigneeGM Global Technology Operations LLC
InventorsAlexandra N. Torgersen, Scott W. Jorgensen, Stacey E. Siporin
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In one aspect, the invention provides a method of storing hydrogen that comprises reacting two precursors to form a hydrogen storage composition comprising hydrogen, nitrogen, a Group 13 element, and an element selected from Group 1, Group 2 or mixtures thereof. In other aspects, the present invention provides a method of storing hydrogen by ball-milling two precursors at a temperature in a range sufficient to prevent pre-mature release of hydrogen, while the temperature is still sufficient to induce reaction between the precursors. The precursors preferably have X—H, Y—H and A-H bonds where X represents a Group 13 element, Y represents a Group 15 element, and A represents an element from Group 1, Group 2, or mixtures thereof. Other variations of the methods of storing hydrogen are further provided.
A method of storing and, later, releasing hydrogen comprising:
A method of storing and, later, releasing hydrogen comprising ball-milling precursor compounds borazane (BH3NH3) and lithium aluminum hydride (LiAlH4) at a temperature below about 25° C. that is within a range sufficient to prevent premature release of hydrogen and sufficient to induce reaction between borazane and lithium aluminum hydride to form a ball-milled material comprising a hydrogen containing product different than BH3NH3 and LiAlH4, where on the basis of 100 mole percent, the borazane is present in an amount of 80% and the lithium aluminum hydride is present in an amount of 20%;
Dependencies are inferred from the claim text.