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Direct synthesis of hydride compounds using a titanium aluminate dopant

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
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A method for directly preparing alkali metal aluminum hydrides such as NaAlH.sub.4 and Na.sub.3AlH.sub.6 from either the alkali metal or its hydride, and aluminum. The hydride thus prepared is doped with a small portion of TiAl.sub.3, in order to improve the reaction kinetics of the hydride compound thus formed. The process provides for mechanically mixing the dry reagents under an inert atmosphere followed by charging the mixed materials with high pressure hydrogen while heating the mixture to about C.
Gross, Karl J. (Fremont, CA), Majzoub, Eric H. (Pleasanton, CA)
10/ 320,006
December 16, 2002
[0002] This invention was made with Government support under government contract no. DE-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention, including a paid-up license and the right, in limited circumstances, to require the owner of any patent issuing in this invention to license others on reasonable terms.