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CO Oxidation on Metal-Supported Ultrathin Oxide Films: What Makes Them Active?

Authors

  • Yulia Martynova,

    1. Department of Chemical Physics, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, Berlin 14195 (Germany), Fax: (+49) 30-84134105
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  • Dr. Shamil Shaikhutdinov,

    Corresponding author
    1. Department of Chemical Physics, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, Berlin 14195 (Germany), Fax: (+49) 30-84134105
    • Department of Chemical Physics, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, Berlin 14195 (Germany), Fax: (+49) 30-84134105
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  • Prof. Hans-Joachim Freund

    1. Department of Chemical Physics, Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, Berlin 14195 (Germany), Fax: (+49) 30-84134105
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Abstract

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It depends on O: The catalytic properties of ultrathin oxide films are studied by using the low-temperature oxidation of CO as a benchmark reaction. The results reveal a strong correlation between the activity and the desorption energy of the most weakly bound oxygen species present on these films under net oxidizing conditions at near-atmospheric pressures. The results suggest the use of oxygen binding energy as a suitable descriptor for the reaction.

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