Process for synthesis of ammonia borane for bulk hydrogen storage
US7897129B2 · kind B2 · utility
3Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Apr 28, 2009 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Oct 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/32
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention discloses new methods for synthesizing ammonia borane (NH3BH3, or AB). Ammonium borohydride (NH4BH4) is formed from the reaction of borohydride salts and ammonium salts in liquid ammonia. Ammonium borohydride is decomposed in an ether-based solvent that yields AB at a near quantitative yield. The AB product shows promise as a chemical hydrogen storage material for fuel cell powered applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.