2013 Fiscal Year Final Research Report
Surface scientific approaches to clarify the interaction between metal catalysts and carbon supports
| Project/Area Number |
23360352
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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 | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KONDO Takahiro 筑波大学, 数理物質系, 講師 (70373305)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 白金 / ナノクラスター / 触媒 / 燃料電池 / 表面科学 / グラフェン / ナノカーボン / 水素 |
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| Research Abstract |
The size of Pt clusters supported on graphene was successfully controlled between sub-nanometers and 4 nm. The Pt subnano-clusters show high catalytic activities for electro-oxidation of CO. The activities decrease with increasing particle size of Pt. The electronic structure of Pt clusters with subnano-meters is significantly modified compared to that of bulk Pt. That is, the carbon support effect is significant for Pt/graphene catalysts. Nitrogen-doping into graphene further modified the electronic structure and the catalytic properties of Pt clusters. The results in the research project mean that graphene-supported Pt catalysts can be applied to fuel cells.
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