Electrochemical Reaction of Graphene Oxide at Au Electrode Surface Monitored by Surface Enhanced Infrared Absorption Spectroscopy

Katsuhiko Nishiyama; Yusuke Hayashi; Tomoaki Yoshimura; Yasuhiro Yoshimura; Kazuto Hatakeyama; Takaaki Taniguchi; Michio Koinuma; Soichiro Yoshimoto; Yasumichi Matsumoto

doi:10.1380/ejssnt.2015.413

Conference -ISSS-7-

Electrochemical Reaction of Graphene Oxide at Au Electrode Surface Monitored by Surface Enhanced Infrared Absorption Spectroscopy

Katsuhiko Nishiyama, Yusuke Hayashi, Tomoaki Yoshimura, Yasuhiro Yoshimura, Kazuto Hatakeyama, Takaaki Taniguchi, Michio Koinuma, Soichiro Yoshimoto, Yasumichi Matsumoto

Author information

Katsuhiko Nishiyama
Graduate School of Science and Technology, Kumamoto University
Kumamoto Institute for Photo-Electro Organics (Phoenics)
Yusuke Hayashi
Graduate School of Science and Technology, Kumamoto University
Tomoaki Yoshimura
Graduate School of Science and Technology, Kumamoto University
Yasuhiro Yoshimura
Graduate School of Science and Technology, Kumamoto University
Kazuto Hatakeyama
Graduate School of Science and Technology, Kumamoto University
CREST, Japan Science and Technology Agency
Takaaki Taniguchi
Graduate School of Science and Technology, Kumamoto University
CREST, Japan Science and Technology Agency
Michio Koinuma
Graduate School of Science and Technology, Kumamoto University
CREST, Japan Science and Technology Agency
Soichiro Yoshimoto
Kumamoto Institute for Photo-Electro Organics (Phoenics)
Priority Organization for Innovation and Excellence, Kumamoto University
Yasumichi Matsumoto
Graduate School of Science and Technology, Kumamoto University
CREST, Japan Science and Technology Agency

Keywords: Electrochemical methods, Infrared absorption spectroscopy, Surface chemical reaction, Solid-liquid interfaces

JOURNAL FREE ACCESS

2015 Volume 13 Pages 413-416

DOI https://doi.org/10.1380/ejssnt.2015.413

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Abstract

Adsorption and electrochemical reaction of graphen oxide (GO) at an Au surface was studied by surface enhanced infrared absorption spectroscopy (SEIRAS). GO film on the Au electrode is formed within 1 min. in 0.4 mg ml^-1 of GO aqueous dispersion solution. Also, it was shown that, by applying −1.0 V vs Ag/AgCl, the epoxy group of GO was reduced in 0.4 mg ml^-1 of GO and 0.1 M NaClO₄ solution, and the reaction was irreversible within the potential region under the experimental conditions studied here. [DOI: 10.1380/ejssnt.2015.413]

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