Low-Temperature Carbon Monoxide Oxidation with Au–Cu Meatball-Like Cages Prepared by Galvanic Replacement

Authors

  • Changjiang Zhou,

    1. Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054 (PR China), Fax: (+86)029-83395131
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    • These authors contributed equally to this work.

  • Xi Jiang,

    1. Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054 (PR China), Fax: (+86)029-83395131
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    • These authors contributed equally to this work.

  • Dr. Lini Yang,

    Corresponding author
    1. Department of Chemistry, Liaoning University, Shenyang, Liaoning 110036 (PR China)
    • Lini Yang, Department of Chemistry, Liaoning University, Shenyang, Liaoning 110036 (PR China)

      Mingshang Jin, Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054 (PR China), Fax: (+86)029-83395131

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  • Prof. Yadong Yin,

    1. Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054 (PR China), Fax: (+86)029-83395131
    2. Department of Chemistry, University of California, Riverside, CA 92521 (USA)
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  • Prof. Mingshang Jin

    Corresponding author
    1. Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054 (PR China), Fax: (+86)029-83395131
    • Lini Yang, Department of Chemistry, Liaoning University, Shenyang, Liaoning 110036 (PR China)

      Mingshang Jin, Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054 (PR China), Fax: (+86)029-83395131

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Abstract

original image

Cu meatball-like spheres are prepared by a simple approach and used to obtain Au–Cu meatball-like cages with hollow interiors and porous shells by a galvanic replacement reaction. Characterization indicates that the particles, whose morphology holds promise for catalysis applications, are not comprised of an alloy but rather of discrete copper and gold regions. The bimetallic cages show strongly enhanced activity towards carbon monoxide (CO) oxidation reaction at low temperatures.

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