Platinum alloy electrocatalyst and acid-electrolyte fuel cell electrode using the same
US4794054A · kind A · utility
38Cited by
7References
20Claims
0Family size
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Key dates
| Filing date | Jun 24, 1987 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Jun 24, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A platinum alloy electrocatalyst composed of a platinum-iron-cobalt alloy comprising 40 to 80 atomic percent of platinum, 10 to 40 atomic percent of iron and 10 to 40 atomic percent of cobalt supported on a suitable carrier has outstandingly high stability and catalytic activity. Electrodes using such an electrocatalyst (particularly when used as cathodes in acid-electrolyte fuel cells) remain stable for longer periods and have more than 30% higher output than electrodes using conventional catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.