Electrode catalyst, method for producing the same, and electrode catalyst layer using electrode catalyst
US10411268B2 · kind B2 · utility
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Key dates
| Filing date | May 10, 2017 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | May 10, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is an electrode catalyst having enhanced catalytic activity (oxygen reduction reaction (ORR) specific activity). Disclosed is an electrode catalyst containing a catalyst metal particle(s) and a spacer(s) supported on a catalyst support, in which a ratio (dsp/dcat) of an average diameter of the spacer(s) (dsp) with respect to an average diameter of the catalyst metal particle(s) (dcat) is from 3.5 to 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.