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Regeneration of Aluminum Hydride

Brookhaven National Laboratory

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Technology Marketing Summary

Alane is one of the most promising solutions to storing hydrogen for use in hydrogen fuel cells. This technology provides exceptional improvement in solving the difficult problem of economically preparing the material.

Description

Describes methods and materials required for the formation of alanes. Lowering the free energy of the reaction by making use of "catalyzed aluminum" and formation of stabilizing adducts of alane, it is possible to regenerate aluminum hydride from aluminum metal and molecular hydrogen. Continuation in part of U.S. patent 7,521,037.

Benefits

Aluminum hydride is an attractive alternative to the traditional metal hydrides for the storage of hydrogen for its use as an energy source. Alanes use as the primary source of hydrogen has previously been hindered by a lack of energetically and fiscally sounds methods for its regeneration from Al metal and molecular hydrogen. This technology may solve the problems surrounding regeneration of aluminum hydride.

Applications and Industries

The aluminum hydride made using the process can be used as a hydrogen storage medium for a number of applications.

Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Patent 8,268,288
Patent
8,268,288
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, and by increasing the magnitude of the change in enthalpy of the reaction or combinations thereof.
Brookhaven National Laboratory 09/18/2012
Issued
Patent 7,521,037
Patent
7,521,037
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.
Brookhaven National Laboratory 04/21/2009
Issued
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
BSA 09-20 and 06-18PrototypeAvailable01/09/201401/09/2014

Contact BNL About This Technology

To: Avijit Sen<asen@bnl.gov>