Electrical modulation of the solution pH near polyaniline and its composite electrodes

Takashi Sawai*, Hiroaki Shinohara, Yoshihito Ikariyama, Masuo Aizawa

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

26 被引用数 (Scopus)

抄録

The pH in the vicinity of a thin conducting polymer-coated electrode was electrochemically modulated without electrolysis of water. A pH modulator was constructed by depositing polyaniline and its composites with polystyrene sulphonate or polyperfluorosulphuric acid (Nafion®) thin membrane onto the surface of Pt, Au plate or graphite sheet electrodes. Changes in pH were measured directly using an IS-FET pH sensor. The pH changed by two orders of magnitude within several tens of ms near the polyaniline-coated electrode in a solution without hydrogen and oxygen evolution. The rate of ion transfer in the membrane matrix was determined in relation to the proposed analysis of chronoamperometry.

本文言語英語
ページ(範囲)221-230
ページ数10
ジャーナルJournal of Electroanalytical Chemistry
283
1-2
DOI
出版ステータス出版済み - 1990/04/25

ASJC Scopus 主題領域

  • 分析化学
  • 化学工学一般
  • 電気化学

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