Electrode catalyst for fuel cell, method for producing the electrode catalyst, and polymer electrolyte fuel cell using the electrode catalyst
US8236462B2 · kind B2 · utility
1Cited by
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18Claims
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Key dates
| Filing date | Jan 26, 2009 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Oct 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode catalyst for a fuel cell, which has improved performance compared with conventional platinum alloy catalysts, a method for producing the electrode catalyst, and a polymer electrolyte fuel cell using the electrode catalyst are provided. The electrode catalyst for a fuel cell comprises a noble-metal-non-precious metal alloy that has a core-shell structure supported on a conductive carrier. The composition of the catalyst components of the shell is such that the amount of the noble metal is greater than or equal to the amount of the non-precious metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.