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Volume 140, 2009
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Electro-oxidation of ethanol and acetaldehyde on platinum single-crystal electrodes

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Abstract

The electrochemical oxidation of ethanol and acetaldehyde in sulfuric acid and perchloric acid were studied at Pt (111), Pt (110), and a number of Pt [n(111)×(111)] single-crystal electrodes. The oxidation of ethanol shows a marked dependence on the surface structure, roughly increasing as the surface step density increases. The oxidation of acetaldehyde shows a reversed correlation, the activity decreasing with increasing step density. Based on the results obtained here and reported earlier in electrochemical and ultrahigh vacuum literature, a detailed reaction scheme for the ethanol oxidation mechanism is suggested.

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Publication details

The article was received on 03 Mar 2008, accepted on 03 Apr 2008 and first published on 20 Aug 2008


Article type: Paper
DOI: 10.1039/B803711F
Citation: Faraday Discuss., 2009,140, 399-416
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    Electro-oxidation of ethanol and acetaldehyde on platinum single-crystal electrodes

    S. C. S. Lai and M. T. M. Koper, Faraday Discuss., 2009, 140, 399
    DOI: 10.1039/B803711F

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