OB22 Preparation of a CO-tolerant PtRuxSny/C catalyst with an optimal Ru/Sn ratio by selective Sn-deposition on the Pt and Ru surfaces

Tuesday, June 7, 2011: 11:40 AM
Columbus Ballroom (Detroit Marriott Hotel at the Renaissance Center )
Jong Suk Yoo, School of Chemical and Biological Engineering, Seoul National University, Seoul, South Korea, Hyun Tae Kim, School of Chemical & Biological Engineering and Institute of Chemical Processes Seoul National University, Seoul National University, Seoul, South Korea, Han-Ik Joh, Institute of Advanced Composite Materials, Korea Institute of Science and Technology, Jeollabukdo, South Korea and Sang Heup Moon, School of Chemical & Biological Engineering, Seoul National University, Seoul, South Korea
PtRu0.8Sn0.2/C catalyst prepared by selectively depositing Sn on the Pt-Ru surface, using a chemical vapor deposition method, exhibited higher CO tolerance than PtRuxSny/C catalysts prepared by precipitation and the commercially available PtRu1.0/C catalyst, because CO oxidation by the bi-functional mechanism proceeded more efficiently on the former catalyst.

Extended Abstracts:

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