Regeneration of aluminum hydride
US7521037B1 · kind B1 · utility
7Cited by
6References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2007 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Jul 31, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B6/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides methods and materials for the formation of hydrogen storage alanes, AlHx, where x is greater than 0 and less than or equal to 6 at reduced H2 pressures and temperatures. The methods rely upon reduction of the change in free energy of the reaction between aluminum and molecular H2. 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.