Electrode catalyst for fuel cell, method of producing the same, and fuel cell
US11258076B2 · kind B2 · utility
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1References
7Claims
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Key dates
| Filing date | Dec 11, 2017 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Jan 22, 2038 |
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 electrode catalyst for a fuel cell that includes a carbon support (11) having pores (13) and catalyst particles containing platinum or a platinum alloy supported on the carbon support (11). The pores (13) of the carbon support (11) have a mode size of pores (13) in a range of 2.1 nm to 5.1 nm. A total pore volume of the pores (13) of the carbon support (11) is in a range of 21 cm3/g to 35 cm3/g. A distance between the catalyst particles and a surface of the carbon support (11) is in a range of 2.0 nm to 12 nm as a distance of a 50% cumulative frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.