Highly stable chemisorption of dyes with pyridyl anchors over TiO2: application in dye-sensitized photoelectrochemical water reduction in aqueous media

Kohei Takijiri; Kohei Morita; Takashi Nakazono; Ken Sakai; Hironobu Ozawa

doi:10.1039/C6CC10321A

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Highly stable chemisorption of dyes with pyridyl anchors over TiO₂: application in dye-sensitized photoelectrochemical water reduction in aqueous media†

Kohei Takijiri,^a Kohei Morita,^a Takashi Nakazono,^ab 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

A polypyridyl ruthenium sensitizer possessing pyridyl anchors (Ru-py) forms much stronger chemical linkages to TiO₂ surfaces compared to the conventional carboxylate and phosphonate ones. A highly stable dye-sensitized photoelectrochemical cell for water reduction is successfully demonstrated using this technique.

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Article information

DOI: https://doi.org/10.1039/C6CC10321A
Article type: Communication
Submitted: 30 Dec 2016
Accepted: 20 Feb 2017
First published: 20 Feb 2017

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Chem. Commun., 2017,53, 3042-3045

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Highly stable chemisorption of dyes with pyridyl anchors over TiO₂: application in dye-sensitized photoelectrochemical water reduction in aqueous media

K. Takijiri, K. Morita, T. Nakazono, K. Sakai and H. Ozawa, Chem. Commun., 2017, 53, 3042 DOI: 10.1039/C6CC10321A

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Chemical Communications