Photoelectrochemical Behavior of Some Methylium Salts Having Methoxyphenyl Groups at an ITO Electrode in 1,2-dichloroethane

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  • ERABI Tatsuo
    Department of Materials Science, Faculty of Engineering, Tottori University
  • OHTSUKI Takayuki
    Department of Materials Science, Faculty of Engineering, Tottori University
  • OSAKI Eiko
    Department of Materials Science, Faculty of Engineering, Tottori University
  • ISHIKAWA Yohko
    Department of Materials Science, Faculty of Engineering, Tottori University
  • NAGAREO Tomomitsu
    Department of Materials Science, Faculty of Engineering, Tottori University
  • ASAHARA Masahiro
    Department of Materials Science, Faculty of Engineering, Tottori University
  • WADA Masanori
    Department of Materials Science, Faculty of Engineering, Tottori University

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Abstract

<p>Photoelectrochemical behavior of triarylmethylium salts ([Φ3C]ClO4 and [Φ′Φb2C] ClO4 [Φ and Φ′ represent 2,4,6-trimethoxyphenyl, 2,6-dimethoxyphenyl, 2-methoxyphenyl, 4-methoxyphenyl, and phenyl groups]), expected as a novel photosensitizer, was studied at an ITO electrode in 1,2-dichloroethane under potentiostatic conditions. The slow increase in a cathodic current was observed upon illumination. The observed photocurrent depended on the applied potential, and the half-wave potential was close to the redox potential based on methylium-methyl radical redox couples. The photocurrent also depended on the concentration of the salts, and the illuminance of the incident light.</p>

Journal

  • Electrochemistry

    Electrochemistry 70 (6), 409-411, 2002-06-05

    The Electrochemical Society of Japan

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