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Phosphate Doping into Monoclinic BiVO4 for Enhanced Photoelectrochemical Water Oxidation Activity

Authors

  • Won Jun Jo,

    1. Department of Chemical Engineering and Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784 (Korea)
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    • These authors contributed equally to this work.

  • Dr. Ji-Wook Jang,

    1. Department of Chemical Engineering and Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784 (Korea)
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    • These authors contributed equally to this work.

  • Dr. Ki-jeong Kong,

    1. Korea Institute of Chemical Technology, 100 Jang-dong, Yuseong-gu, Daejeon, 305-343 (Korea)
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  • Hyun Joon Kang,

    1. Department of Chemical Engineering and Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784 (Korea)
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  • Jae Young Kim,

    1. Department of Chemical Engineering and Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784 (Korea)
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  • Dr. Hwichan Jun,

    1. Department of Chemical Engineering and Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784 (Korea)
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  • Dr. K. P. S. Parmar,

    1. Department of Chemical Engineering and Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784 (Korea)
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  • Prof. Jae Sung Lee

    Corresponding author
    1. Department of Chemical Engineering and Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784 (Korea)
    • Department of Chemical Engineering and Division of Advanced Nuclear Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784 (Korea)
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  • This research was supported by thr Hydrogen Energy Centre (a Frontier Research Program of NRF, Korea), the Korean Centre for Artificial Photosynthesis (NRF-2011-C1AAA001-2011-0030278), WCU, Brain Korea 21, and A3 foresight programs (NRF, Korea).

Abstract

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Ein monoklines BiVO4-Gitter wurde mit Phosphat dotiert, was die Aktivität in der photoelektrochemischen und photokatalytischen Wasseroxidation mit sichtbarem Licht gegenüber reinem BiVO4 ungefähr um den Faktor 30 steigerte. Elektrochemische Impedanzspektroskopie und Dichtefunktionalrechnungen identifizieren einen deutlich verbesserten Ladungstransfer des BiVO4 als den Hauptgrund für die verstärkte photoelektrochemische Aktivität.

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