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Remarkable Improvement of the Photocatalytic Activity of Ga2O3 Towards the Overall Splitting of H2O

Authors

  • Dr. Yoshihisa Sakata,

    Corresponding author
    1. Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai Ube 755-8611 (Japan), Fax: (+81) 836859201
    • Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai Ube 755-8611 (Japan), Fax: (+81) 836859201
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  • Yuta Matsuda,

    1. Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai Ube 755-8611 (Japan), Fax: (+81) 836859201
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  • Takaki Nakagawa,

    1. Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai Ube 755-8611 (Japan), Fax: (+81) 836859201
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  • Ryo Yasunaga,

    1. Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai Ube 755-8611 (Japan), Fax: (+81) 836859201
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  • Prof. Hayao Imamura,

    1. Graduate School of Science and Engineering, Yamaguchi University, 2-16-1 Tokiwadai Ube 755-8611 (Japan), Fax: (+81) 836859201
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  • Dr. Kentaro Teramura

    1. Kyoto University Pioneering Research Unit for Next Generation, Kyoto University, Kyoto 615-8510 (Japan)
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Abstract

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Zinc-doped Ga2O3, in combination with a RhyCr2−yO3 co-catalyst shows a remarkably high photocatalytic activity towards the overall splitting of H2O. Several combinations of co-catalyst, dopant, and gallium oxide are characterized and tested, and an activity of 21.0 mmol h−1 H2 and 10.5 mmol h−1 O2 is achieved.

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