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Crystal-Plane-Controlled Surface Restructuring and Catalytic Performance of Oxide Nanocrystals

Authors

  • Huizhi Bao,

    1. Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei 230026 (China)
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    • These authors contributed equally to this paper.

  • Dr. Wenhua Zhang,

    1. CAS Key Laboratory of Materials for Energy Conversion and Department of Materials Science and Engineering, University of Science and Technology of China, Jinzhai Road 96, Hefei, 230026 (China)
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    • These authors contributed equally to this paper.

  • Qing Hua,

    1. Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei 230026 (China)
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  • Dr. Zhiquan Jiang,

    1. Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei 230026 (China)
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  • Prof. Dr. Jinlong Yang,

    Corresponding author
    1. Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei 230026 (China)
    • Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei 230026 (China)
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  • Prof. Dr. Weixin Huang

    Corresponding author
    1. Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei 230026 (China)
    • Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Jinzhai Road 96, Hefei 230026 (China)
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  • This work was financially supported by the National Natural Science Foundation of China (21173204, 11079033), the National Basic Research Program of China (2010CB923302, 2011CB921404), the Fundamental Research Funds for the Central Universities, and the MPG-CAS partner group program.

Abstract

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Crystal clear: Uniform Cu2O nanooctahedra (o-Cu2O) and nanocubes (c-Cu2O) undergo surface restructuring during CO oxidation for the in-situ formation of catalytically active CuO thin films to give CuO/o-Cu2O and CuO/c-Cu2O, respectively (see picture). The structure and catalytic performance of CuO thin films are controlled by the crystal plane exposed on the underlying Cu2O nanocrystals.

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