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Deactivation of Pt/VC proton exchange membrane fuel cell cathodes by SO2, H2S and COS

✍ Scribed by Benjamin D. Gould; Olga A. Baturina; Karen E. Swider-Lyons

Book ID
108192831
Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
737 KB
Volume
188
Category
Article
ISSN
0378-7753

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SO 2 poisoning of carbon-supported Pt 3 Co (Pt 3 Co/VC) catalyst is performed at the cathode of proton exchange membrane fuel cells (PEMFCs) in order to link previously reported results at the electrode/solution interface to the FC environment. First, the surface area of Pt 3 Co/VC catalyst is rigo

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The CO and CO 2 poisoning effects on the degradation of cell performance of proton exchange membrane fuel cell (PEMFC) under transient stage were investigated. The mechanism of CO poisoning lies in the preferential adsorbing of CO to the platinum surface and the blocking of active sites of hydrogen.