Low platinum fuel cell catalysts and method for preparing the same
US7351444B2 · kind B2 · utility
35Cited by
77References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2004 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Jun 18, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention provides novel fuel cell catalysts comprising new series of catalytically active thin-film metal alloys with low platinum concentration supported on nanostructured materials (nanoparticles). In certain embodiments, an integrated gas-diffusion/electrode/catalyst layer can be prepared by processing catalyst thin films and nanoparticales into gas-diffusion media such as Toray or SGL carbon fiber papers. The catalysts can be placed in contact with an electrolyte membrane for PEM fuel cell applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.