Catalyst and electrode catalyst layer, membrane electrode assembly, and fuel cell using the catalyst
US11031604B2 · kind B2 · utility
0Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2019 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Aug 1, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a catalyst having excellent gas transportability. Disclosed is a catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein the catalyst includes pores having a radius of less than 1 nm and pores having a radius of 1 nm or more, wherein a pore volume of the pores having a radius of less than 1 nm is 0.3 cc/g support or more or a mode radius of a pore distribution of the pores having a radius of less than 1 nm is 0.3 nm or more and less than 1 nm, and wherein the catalyst metal is supported inside the pores having a radius of 1 nm or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.