A platinum porphyrin modified TiO2 electrode for photoelectrochemical hydrogen production from neutral water driven by the conduction band edge potential of TiO2

Kohei Morita; Kohei Takijiri; Ken Sakai; Hironobu Ozawa

doi:10.1039/C7DT03710D

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A platinum porphyrin modified TiO₂ electrode for photoelectrochemical hydrogen production from neutral water driven by the conduction band edge potential of TiO₂†

Kohei Morita,^a Kohei Takijiri,^a Ken Sakai*^abc and Hironobu Ozawa

*^d

Author affiliations

* Corresponding authors

^a Department of Chemistry, Faculty of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, Japan
E-mail: ksakai@chem.kyushu-univ.jp

^b International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Motooka 744, Nishi-ku, Fukuoka, Japan

^c Center for Molecular Systems (CMS), Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan

^d Education Center for Global Leaders in Molecular Systems for Devices, Kyushu University, 774 Motooka, Nishi-ku, Fukuoka, Japan
E-mail: h.ozawa@chem.kyushu-univ.jp

Abstract

The onset potential for H₂ production from neutral water (pH 7) catalyzed by a platinum(II) porphyrin (PtP-py) modified TiO₂ electrode positions very close to the standard water reduction potential (less than 50 mV). H₂ production is driven by the conduction band edge potential of TiO₂ at the PtP-py-modified TiO₂ cathode.

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Article information

DOI: https://doi.org/10.1039/C7DT03710D
Article type: Communication
Submitted: 03 Oct 2017
Accepted: 05 Oct 2017
First published: 09 Oct 2017

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Dalton Trans., 2017,46, 15181-15185

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A platinum porphyrin modified TiO₂ electrode for photoelectrochemical hydrogen production from neutral water driven by the conduction band edge potential of TiO₂

K. Morita, K. Takijiri, K. Sakai and H. Ozawa, Dalton Trans., 2017, 46, 15181 DOI: 10.1039/C7DT03710D

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Dalton Transactions