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Self-Regenerative Silver Nanocluster Catalyst for CO Oxidation

Authors

  • Dr. Ken-ichi Shimizu,

    Corresponding author
    1. Catalysis Research Center, Hokkaido University, N-21, W-10, Sapporo 001-0021 (Japan), Fax: (+81) 11-706-9163
    • Catalysis Research Center, Hokkaido University, N-21, W-10, Sapporo 001-0021 (Japan), Fax: (+81) 11-706-9163

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  • Dr. Kyoichi Sawabe,

    1. Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603 (Japan)
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  • Prof. Atsushi Satsuma

    1. Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603 (Japan)
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Abstract

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Can't keep me down: Silver nanoclusters (NCs), formed by spontaneous atomic-level dispersion of non-nano silver onto Al2O3 surface, show self- regenerative properties during redox aging above 900 °C and, consequently, higher activity than state-of-the-art CO oxidation catalysts after the aging. Size-dependence of the activity and DFT calculation indicate that Ag atoms at corner/edge sites are the active site of Ag NCs.

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