Fuel cell catalyst material, fuel cell electrode, membrane-electrode assembly, fuel cell, fuel cell catalyst material manufacturing method, and fuel cell electrode manufacturing method
US7754370B2 · kind B2 · utility
2Cited by
1References
3Claims
0Family size
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Key dates
| Filing date | Aug 20, 2003 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Feb 3, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention provides a fuel cell catalyst material containing catalyst particles having a composition substantially represented byATxNu (1)wherein A contains Pt or Pt and at least one noble metal element selected from the group consisting of Ru, Pd, Au, and Ag, T contains at least one element selected from the group consisting of Fe, Co, Ni, Sn, Mn, Cr, V, Ti, Mo, Nb, Zr, W, Ta, and Hf, and atomic ratios x and u fall within the ranges 0≦x≦4 and 0.005≦u≦1, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.