Carbon powder for fuel cell and catalyst, electrode catalyst layer, membrane electrode assembly, and fuel cell using the carbon powder for fuel cell
US10675611B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 18, 2017 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Jan 18, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided are a carbon powder which can provide a catalyst exhibiting high performance and a catalyst. A carbon powder for fuel cell comprising carbon as a main component, which has a ratio (B/A) of an area B of peak 1 to an area A of peak 0 of more than 0 and 0.15 or less, wherein the area A represents an area of peak 0 at a position of 2θ=22.5° to 25° as observed by XRD analysis when the carbon powder for fuel cell is subjected to heat treatment at 1800° C. for 1 hour in an inert atmosphere, and the area B represents an area of peak 1 at a position of 2θ=26° as observed by XRD analysis when the carbon powder for fuel cell is subjected to heat treatment at 1800° C. for 1 hour in an inert atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.