Fuel cell catalyst electrodes
US7220693B1 · kind B1 · utility
5Cited by
9References
8Claims
0Family size
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Key dates
| Filing date | Jun 27, 2002 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Feb 9, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Acidic groups such as those in the sulfonic acid family have been successfully linked onto the surface of carbon used as catalyst support. Electrodes made using such sulfonated catalysts as used in electrochemical cells improve the performance of the cells, more so than cells fabricated from electrodes using an unsulfonated electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.