Catalyst, electrode for fuel electrode in fuel cell, and fuel cell
US7579298B2 · kind B2 · utility
2Cited by
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9Claims
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Key dates
| Filing date | Sep 25, 2006 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jun 22, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Catalysts contain noble metal-containing particles that has a composition except oxygen represented by a formula PtXRuYAZSnS and exhibits a mean particle diameter of from 0.5 nm to 10 nm, both inclusively. A is at least one element selected from a group consisting of Rh, Au, Pd, Ir and Os, and X, Y, Z and S are atomic ratios satisfying relations 30≦X ≦70, 30≦Y≦70, 0≦Z≦40, 0.5≦S≦8 and X+Y+Z+S=100.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.