Platinum-copper alloy electrocatalyst and acid-electrolyte fuel cell electrode using the same
US4716087A · kind A · utility
44Cited by
8References
22Claims
0Family size
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Key dates
| Filing date | Dec 10, 1986 |
| Grant date | Dec 29, 1987 |
| Priority date | — |
| Expiry date | Dec 10, 2006 |
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-copper alloy containing 15 to 50 atomic percent of copper (the balance being platinum) and supported on a suitable carrier, shows high activity over long periods because of the enhanced specific activity of supported metal and improved maintainability of its specific surface area. Thus acid-electrolyte fuel cells using the electrode comprising such an electrocatalyst feature better output performances and longer service life than fuel cells using conventional electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.