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Reversible hydrogen storage materials

United States Patent

April 10, 2012
View the Complete Patent at the US Patent & Trademark Office
In accordance with the present disclosure, a process for synthesis of a complex hydride material for hydrogen storage is provided. The process includes mixing a borohydride with at least one additive agent and at least one catalyst and heating the mixture at a temperature of less than about C. and a pressure of H.sub.2 gas to form a complex hydride material. The complex hydride material comprises MAl.sub.xB.sub.yH.sub.z, wherein M is an alkali metal or group IIA metal, Al is the element aluminum, x is any number from 0 to 1, B is the element boron, y is a number from 0 to 13, and z is a number from 4 to 57 with the additive agent and catalyst still being present. The complex hydride material is capable of cyclic dehydrogenation and rehydrogenation and has a hydrogen capacity of at least about 4 weight percent.
Ritter; James A. (Lexington, SC), Wang; Tao (Columbia, SC), Ebner; Armin D. (Lexington, SC), Holland; Charles E. (Cayce, SC)
University of South Carolina (Columbia, SC)
11/ 940,651
November 15, 2007
GOVERNMENT SUPPORT CLAUSE This disclosure was made with Government support under Contract No. DE-FC36-04GO14232 awarded by the United States Department of Energy. The Government has certain rights in the disclosure.