Processes for producing catalyst-layer-supporting substrate, catalyst-layer-supporting substrate, membrane electrode assembly, and fuel cell
US8758959B2 · kind B2 · utility
4Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2009 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jun 25, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The processes include: a layer superposition step in which the step of sputtering or vapor-depositing a mixture layer including a first pore-forming metal and a catalyst metal on a substrate and the step of forming an interlayer of a second pore-forming metal or a fibrous-carbon interlayer are alternately conducted repeatedly two or more times to thereby form a multilayer structure containing mixture layers and interlayers; and a pore formation step in which after the layer superposition step, the multilayer structure is subjected to a pore formation treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.