Gold-based alloy nanoparticles for use in fuel cell catalysts
US7208439B2 · kind B2 · utility
29Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2005 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Mar 15, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method is featured for fabricating Carbon-supported AuPt nanoparticle catalysts for fuel cells, and particularly fuel cells using methanol as the fuel. The method prepares AuPt-based fuel cell catalysts having a wide range of controllable Au:Pt ratios. The AuPt catalysis are supportable on both carbon black (C) and C/TiO2 support materials. These materials demonstrate electro-catalytic activity towards CO and methanol oxidation, and O2 reduction. The same catalyst material is useful in constructing both anodes and cathodes, and demonstrates bifunctional activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.