Photocatalytic Conversion of Carbon Dioxide with Water into Methane: Platinum and Copper(I) Oxide Co-catalysts with a Core–Shell Structure

Authors

  • Qingge Zhai,

    1. State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
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    • These authors contributed equally to this work.

  • Shunji Xie,

    1. State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
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    • These authors contributed equally to this work.

  • Wenqing Fan,

    1. State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
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    • These authors contributed equally to this work.

  • Prof. Dr. Qinghong Zhang,

    Corresponding author
    1. State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
    • State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)

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  • Yu Wang,

    1. State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
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  • Dr. Weiping Deng,

    1. State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
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  • Prof. Dr. Ye Wang

    Corresponding author
    1. State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)
    • State Key Laboratory of Physical Chemistry of Solid Surfaces, Innovation Center of Chemistry for Energy Materials, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China)

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  • This work was supported by the National Basic Research Program of China (grant numbers2010CB732303 and 2013CB933100), the NSF of China (grant number21033006) and the Program for Changjiang Scholars and Innovative Research Team in University (grant numberIRT1036). We acknowledge Dr. Yanping Zheng and Ms. Xiaobo Li for HS-LEIS and ICP measurements.

Abstract

original image

Binary co-catalysts of Pt and Cu2O with a core–shell structure significantly enhance the photocatalytic reduction of CO2 with H2O to CH4 and CO. The Cu2O shell provides sites for the preferential activation and conversion of CO2, whereas the Pt core extracts the photogenerated electrons from TiO2. The deposition of Cu2O shell on Pt nanoparticles markedly suppresses the reduction of H2O to H2 (see picture).

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