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Regeneration of aluminum hydride

United States Patent

April 21, 2009
View the Complete Patent at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
Regeneration of Aluminum Hydride
The present invention provides methods and materials for the formation of hydrogen storage alanes, AlH.sub.x, where x is greater than 0 and less than or equal to 6 at reduced H.sub.2 pressures and temperatures. The methods rely upon reduction of the change in free energy of the reaction between aluminum and molecular H.sub.2. The change in free energy is reduced by lowering the entropy change during the reaction by providing aluminum in a state of high entropy, by increasing the magnitude of the change in enthalpy of the reaction or combinations thereof.
Graetz; Jason Allan (Mastic, NY), Reilly; James J. (Bellport, NY)
Brookhaven Science Associates, LLC (Upton, NY)
11/ 831,297
July 31, 2007
The present invention was made with government support under Contract No. DE-AC02-98CH10886 awarded by the U.S. Department of Energy. The United States government has certain rights in the invention.