Issue 63, 2015
From the journal:

Chemical Communications

An IrSi oxide film as a highly active water-oxidation catalyst in acidic media†

Viet-Ha Tran,ab   Takeshi Yatabe,abc   Takahiro Matsumoto,abc   Hidetaka Nakai,abc   Kazuharu Suzuki,d   Takao Enomoto,ad   Takashi Hibino,ae   Kenji Kanekoaf  and  Seiji Ogo*abc  

* Corresponding authors

a Centre for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
E-mail: ogo.seiji.872@m.kyushu-u.ac.jp
Fax: +81-92-802-2823
Tel: +81-92-802-2818

b Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan

c International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan

d Chemical Materials Development Department, Technology Development Sector, Tanaka Kikinzoku Kogyo K. K., 22 Wadai, Tsukuba, Ibaraki, Japan

e Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan

f Department of Materials Science and Engineering, Faculty of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan

Abstract

We report an acid-stable Si oxide-doped Ir oxide film (IrSi oxide film), made by metal organic chemical vapour deposition (MOCVD) of an IrV complex for electrochemical water-oxidation. This is a successful improvement of catalytic ability and stability depending upon the pH of Ir oxide by doping of Si oxide. The turnover frequency (TOF) of the electrochemical water-oxidation by the IrSi oxide film is the highest of any Si oxide-doped Ir oxide materials and higher even than that of Ir oxide in acidic media.

Graphical abstract: An IrSi oxide film as a highly active water-oxidation catalyst in acidic media

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Article information

DOI
https://doi.org/10.1039/C5CC04286K
Article type
Communication
Submitted
25 May 2015
Accepted
30 Jun 2015
First published
08 Jul 2015

Chem. Commun., 2015,51, 12589-12592

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An IrSi oxide film as a highly active water-oxidation catalyst in acidic media

V. Tran, T. Yatabe, T. Matsumoto, H. Nakai, K. Suzuki, T. Enomoto, T. Hibino, K. Kaneko and S. Ogo, Chem. Commun., 2015, 51, 12589 DOI: 10.1039/C5CC04286K

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