Cover Picture: Long-Lasting Oscillations in the Electro-Oxidation of Formic Acid on PtSn Intermetallic Surfaces (ChemPhysChem 9/2014)

Authors

  • Nickson Perini,

    1. Institute of Chemistry of São Carlos, University of São Paulo, P.O. Box 780 ,13560-970, São Carlos, SP (Brazil)
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  • Dr. Bruno C. Batista,

    1. Institute of Chemistry of São Carlos, University of São Paulo, P.O. Box 780 ,13560-970, São Carlos, SP (Brazil)
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  • Prof. Antonio C. D. Angelo,

    1. Electrocatalysis Laboratory, UNESP, CP 473, CEP 17033-360, Bauru, SP (Brazil)
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  • Prof. Irving R. Epstein,

    1. Department of Chemistry and Volen Center for Complex Systems, MS 015, Brandeis University, Waltham, Massachusetts 02454-9110, (USA)
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  • Prof. Hamilton Varela

    Corresponding author
    1. Institute of Chemistry of São Carlos, University of São Paulo, P.O. Box 780 ,13560-970, São Carlos, SP (Brazil)
    2. Fritz Haber Institute of the Max Planck Society, Department of Physical Chemistry, Faradayweg 4–6, 14195 Berlin (Germany)
    • Institute of Chemistry of São Carlos, University of São Paulo, P.O. Box 780 ,13560-970, São Carlos, SP (Brazil)===

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Abstract

original image

The cover image shows a schematic view of the long-lasting oscillations observed during the electro-oxidation of formic acid on PtSn ordered intermetallic phases. Within the long road perspective that remits to infinity, oscillations on PtSn are very stable when compared to that on platinum. The higher stability of the oscillations on ordered PtSn surfaces is caused by its tolerance towards surface poisoning, which prevents surface deactivation and slows down the natural drift of the system. This is presented on p. 1753 by H. Varela et al.

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