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Design of a Silver–Cerium Dioxide Core–Shell Nanocomposite Catalyst for Chemoselective Reduction Reactions

Authors

  • Dr. Takato Mitsudome,

    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)
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  • Dr. Yusuke Mikami,

    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)
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  • Motoshi Matoba,

    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)
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  • Dr. Tomoo Mizugaki,

    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)
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  • Prof. Dr. Koichiro Jitsukawa,

    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)
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  • Prof. Dr. Kiyotomi Kaneda

    Corresponding author
    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)
    2. Research Center for Solar Energy Chemistry Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)
    • Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)
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  • This work was supported by a Grant-in-Aid for Young Scientists (A) (23686116) from the Japan Society for the Promotion of Science (JSPS). We also thank Dr. T. Uruga, Dr. H. Tanida, and Dr. K. Nitta (SPring-8) for XAFS measurements (2011A1295). T.M. thanks the Japan Association for Chemical Innovation.

Abstract

original image

Shelling out: A core–shell nanocomposite comprising an Ag nanoparticle core and a CeO2 nanoparticle shell catalyzes the chemoselective reduction of both nitrostyrenes and epoxides while retaining the C[DOUBLE BOND]C bonds (see picture). Reactions with the core–shell structures show greater chemoselectivity than conventional oxide-supported metal nanoparticles.

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