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Noble-Metal/Cr2O3 Core/Shell Nanoparticles as a Cocatalyst for Photocatalytic Overall Water Splitting

Authors

  • Kazuhiko Maeda,

    1. Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan, Fax: (+81) 3-5841-8838
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  • Kentaro Teramura Dr.,

    1. Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan, Fax: (+81) 3-5841-8838
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  • Daling Lu Dr.,

    1. Solution-Oriented Research for Science and Technology (SORST) Programs of the Japan Science and Technology Corporation (JST), 4-1-8 Honcho, Kawaguchi-shi, Saitama 332-0012, Japan
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  • Nobuo Saito Dr.,

    1. Department of Chemistry, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan
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  • Yasunobu Inoue Prof. Dr.,

    1. Department of Chemistry, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan
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  • Kazunari Domen Prof. Dr.

    1. Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan, Fax: (+81) 3-5841-8838
    2. Solution-Oriented Research for Science and Technology (SORST) Programs of the Japan Science and Technology Corporation (JST), 4-1-8 Honcho, Kawaguchi-shi, Saitama 332-0012, Japan
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  • This work was supported by the SORST program of the Japan Science and Technology (JST) Agency and the 21st Century Center of Excellence (COE) program of the Ministry of Education, Culture, Sports, Science, and Technology of Japan.

Abstract

original image

Waterproofcoats: Rh/Cr2O3 (core/shell) nanoparticles supported on a (Ga1−xZnx)(N1−xOx) solid solution are synthesized by an in situ photodeposition method. These nanoparticles (see picture) are used as a promoter for overall water splitting upon visible-light irradiation (λ>400 nm). Without the Cr2O3 shell water is formed from H2 and O2 in an undesired back reaction.

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