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Paper | Regular issue | Vol 81, No. 12, 2010, pp.2771-2780
Published online, 25th October, 2010
DOI: 10.3987/COM-10-12053
Voltammetric Behavior of Mediator-Modified Electrode by Electrochemical Polymerization of Nitroxyl Radical Precursor Containing Pyrrole Side Chain

Tetsuya Ono, Makiko Tsunoda, Shigehiro Takahashi, Toshio Obata, Takanori Sone, and Yoshitomo Kashiwagi*

*School of Pharmaceutical Sciences, Ohu University, 31-1 Misumido, Tomita-machi, Koriyama, Fukushima 963-8611, Japan

Abstract

This paper describes the voltammetric behavior of TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl)-modified electrode prepared by the electrochemical polymerization of TEMPO-modified pyrrole. The modified electrode exhibits a symmetrical reversible redox wave at +0.7 V versus Ag/AgCl, which originates from the electron transfer between the pyrrole-polymerized layer and the electrode. The properties of the polymers on the electrode surface can be modulated by varying the applied polymerization potential. The TEMPO-modified electrode exhibits electrocatalytic activity for the oxidation of geraniol.