Electrode catalyst material comprising carbon nano-fibers having catalyst particles on the surface and in the insides of the interior area and a fuel cell having the electrode catalyst material
US8580462B2 · kind B2 · utility
1Cited by
3References
15Claims
0Family size
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Key dates
| Filing date | Mar 9, 2009 |
| Grant date | Nov 12, 2013 |
| Priority date | — |
| Expiry date | Jul 2, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The carbon fibers of this invention is characterized in that irreducible inorganic material particles in a mean primary particle size below 500 nm and reducible inorganic material particles in a mean primary particle size below 500 nm were mixed by pulverizing and then, the mixture was heat treated under the reducing atmosphere and metal particles in a mean particle size below 1 μm were obtained, and the mixed powder of the thus obtained metal particles with the irreducible inorganic material particles are included in the carbon fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.