Catalyst material
US5316990A · kind A · utility
22Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1992 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Apr 23, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved catalyst material is derived from a precious metal-containing macrocyclic compound precursor, which contains precious metal in zero oxidation state. The material may be produced by activating the compound, for example by a voltage sweep. The material offers useful improvements in activity and resistance to de-activation, when used as a fuel cell catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.