Oxygen reduction catalyst, electrode, membrane electrode assembly, and fuel cell
US10573902B2 · kind B2 · utility
0Cited by
3References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 27, 2017 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Dec 27, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an oxygen reduction catalyst, an electrode, a membrane electrode assembly, and a fuel cell, and the oxygen reduction catalyst is an oxygen reduction catalyst containing substituted CoS2, in which the substituted CoS2 has a cubic crystal structure, the oxygen reduction catalyst contains the substituted CoS2 within 0.83 nm from the surface thereof, and the substituted CoS2 has at least one substitutional atom selected from the group consisting of Cr, Mo, Mn, Tc, Re, Rh, Cu, and Ag in some of Co atom sites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.