Improving the photoelectrochemical activity of La5Ti2CuS5O7 for hydrogen evolution by particle transfer and doping

Jingyuan Liu; Takashi Hisatomi; Guijun Ma; Aki Iwanaga; Tsutomu Minegishi; Yosuke Moriya; Masao Katayama; Jun Kubota; Kazunari Domen

doi:10.1039/C4EE00091A

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Improving the photoelectrochemical activity of La₅Ti₂CuS₅O₇ for hydrogen evolution by particle transfer and doping†

Jingyuan Liu,^a Takashi Hisatomi,^a Guijun Ma,^b Aki Iwanaga,^a Tsutomu Minegishi,^a Yosuke Moriya,^a Masao Katayama,^a Jun Kubota^a and Kazunari Domen*^a

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* Corresponding authors

^a Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656 Tokyo, Japan
E-mail: domen@chemsys.t.u-tokyo.ac.jp

^b Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, 277-8589 Chiba, Japan

Abstract

La₅Ti₂CuS₅O₇ doped with Sc in Ti sites generates photocathodic current at +0.88 V vs. RHE in photoelectrochemical water splitting and shows eight times higher photocurrent than undoped La₅Ti₂CuS₅O₇. The particle transfer method enabling good electrical contact and p-type doping increasing the majority carrier concentration contributes to the enhanced photoelectrochemical activity.

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Article information

DOI: https://doi.org/10.1039/C4EE00091A
Article type: Communication
Submitted: 09 Jan 2014
Accepted: 18 Mar 2014
First published: 19 Mar 2014
This article is Open Access

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Energy Environ. Sci., 2014,7, 2239-2242

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Improving the photoelectrochemical activity of La₅Ti₂CuS₅O₇ for hydrogen evolution by particle transfer and doping

J. Liu, T. Hisatomi, G. Ma, A. Iwanaga, T. Minegishi, Y. Moriya, M. Katayama, J. Kubota and K. Domen, Energy Environ. Sci., 2014, 7, 2239 DOI: 10.1039/C4EE00091A

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