Platinum-copper fuel cell catalyst
US7700521B2 · kind B2 · utility
6Cited by
50References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 18, 2004 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Dec 17, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to a composition for use as a catalyst in, for example, a fuel cell, the composition comprising platinum and copper, wherein the concentration of platinum is greater than 50 atomic percent and less than about 80 atomic percent, and further wherein the composition has a particle size which is less than 35 angstroms. The present invention is further directed to various methods for preparing such a composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.