Fuel cell nanocatalyst with voltage reversal tolerance
In some embodiments, the present disclosure provides a fuel cell catalyst having a catalyst surface bearing a non-occluding layer of iridium. In some embodiments, the present disclosure provides a fuel cell catalyst comprising a catalyst surface bearing a sub-monolayer of iridium. In some embodiments, the present disclosure provides a fuel cell catalyst comprising a catalyst surface bearing a layer of iridium having a planar equivalent thickness of between 1 and 100 Angstroms. In some embodiments, the fuel cell catalyst comprises nanostructured elements comprising microstructured support whiskers bearing a thin film of nanoscopic catalyst particles. The layer of iridium typically has a planar equivalent thickness of between 1 and 100 Angstroms and more typically between 5 and 60 Angstroms. The fuel cell catalyst typically comprises no electrically conductive carbon material and typically comprises at least a portion of the iridium in the zero oxidation state.
- Research Organization:
- 3M Innovative Properties Company, St. Paul, MN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG36-07GO17007
- Assignee:
- 3M Innovative Properties Company (St. Paul, MN)
- Patent Number(s):
- 8,637,193
- Application Number:
- 12/546,775
- OSTI ID:
- 1531895
- Country of Publication:
- United States
- Language:
- English
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