- 专利标题: Suboxide fuel cell catalyst for enhanced reformate tolerance
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申请号: US09745501申请日: 2000-12-22
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公开(公告)号: US20020004453A1公开(公告)日: 2002-01-10
- 发明人: Gregory M. Haugen , Mark K. Debe , John H. Thomas III , Krzysztof A. Lewinski , George D. Vernstrom
- 申请人: 3M Innovative Properties Company
- 申请人地址: null
- 专利权人: 3M Innovative Properties Company
- 当前专利权人: 3M Innovative Properties Company
- 当前专利权人地址: null
- 主分类号: B01J023/00
- IPC分类号: B01J023/00
摘要:
The present invention provides fuel cell electrode catalysts comprising alternating platinum-containing layers and layers containing suboxides of a second metal, where the catalyst demonstrates an early onset of CO oxidation. Preferred second metals are selected from the group consisting of Group IIIb metals, Group IVb metals, Group Vb metals, Group VIb metals and Group VIIb metals, most preferably Ti, Ta, W and Mo. The present invention additionally provides methods of making such catalysts, preferably by alternate deposition of platinum and second metals in the presence of substoichiometric amounts of gaseous oxygen.