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Photocatalytic Conversion of CO2 in Water over Layered Double Hydroxides

Authors

  • Dr. Kentaro Teramura,

    Corresponding author
    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)
    2. Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 (Japan)
    • Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)
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  • Shoji Iguchi,

    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)
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  • Yuto Mizuno,

    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)
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  • Prof. Dr. Tetsuya Shishido,

    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)
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  • Prof. Dr. Tsunehiro Tanaka

    Corresponding author
    1. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)
    • Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)
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  • This study was partially supported by the Program for Improvement of Research Environment for Young Researchers from Special Coordination Funds for Promoting Science and Technology (SCF), commissioned by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan, the Precursory Research for Embryonic Science and Technology (PRESTO), supported by the Japan Science and Technology Agency (JST), and the Grant for Research of The Japan Petroleum Institute. The entry for table of contents was created using VISTA3 software (K. Momma, F. Izumi, J. Appl. Crystallogr. 2011, 44, 1272–1276).

Abstract

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Have a bit of bubbly: Significant amounts of CO and O2 gas are evolved in the photocatalytic conversion of CO2 over layered double hydroxides (LDHs) in water (see scheme). A simple mixture of the same metal hydroxides, which has the same constituent elements of the LDH, shows low activity for CO and O2 evolution. Dissolved CO2 gas was shown to be the source of carbon in the reaction over LDHs in water.

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