2013 Fiscal Year Final Research Report
Improvement in CO tolerance of Pt anode catalysts by coverage with silica layers
| Project/Area Number |
23360359
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Catalyst/Resource chemical process
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| Research Institution | Kyushu University |
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Principal Investigator |
TAKENAKA Sakae 九州大学, 工学(系)研究科(研究院), 准教授 (10302936)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 燃料電池 / Ptアノード触媒 / CO被毒 / シリカ被覆 |
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| Research Abstract |
Pt anode catalysts with high tolerance to CO have been required for commercialization of polymer-electrolyte fuel cells. In the present study, carbon-supported Pt anode catalysts were covered with silica layers to improve CO tolerance of Pt catalysts. Silica-coated Pt catalysts showed high tolerance to CO and their CO tolerance was gradually improved with the thickness of silica layers. The interaction between Pt and silica resulted in the improvement of CO tolerance. In addition, Pt catalysts were covered with various types of metal oxides in order to modify their catalytic performance. Pt catalysts could be uniformly covered with various metal oxides by utilizing very thin silica layers on the Pt catalysts.
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Research Products
(4 results)
