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Title: Fuel cell nanocatalyst with voltage reversal tolerance

Patent ·
OSTI ID:1531895
; ; ;

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
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
Resource Relation:
Patent File Date: 2009-08-25
Country of Publication:
United States
Language:
English

References (42)

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