Preparation of aluminum hydride polymorphs, particularly stabilized .alpha.-alh3
US6228338A · kind A · utility
25Cited by
23References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Jun 16, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention features methods for preparing stabilized .alpha.-AlH.sub.3 and .alpha.'-AlH.sub.3, compositions containing these alane polymorphs, e.g., energetic compositions such as rocket propellants, and methods for using the novel polymorphs as chemical reducing agents, polymerization catalysts, and as a hydrogen source in fuel cells and batteries. The method produces stabilized alane by treating .alpha.-AlH.sub.3 with an acidic solution that optionally contains a stabilizing agent such as an electron donor, an electron acceptor, or a compound which coordinates the Al.sup.3+ ion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.