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

Takashi Sawai; Hiroaki Shinohara; Yoshihito Ikariyama; Masuo Aizawa

doi:10.1016/0022-0728(90)87392-W

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

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

^*Corresponding author for this work

Life Sciences and Bioengineering

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	221-230
Number of pages	10
Journal	Journal of Electroanalytical Chemistry
Volume	283
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-0728(90)87392-W
State	Published - 1990/04/25

ASJC Scopus subject areas

Analytical Chemistry
General Chemical Engineering
Electrochemistry

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title = "Electrical modulation of the solution pH near polyaniline and its composite electrodes",

abstract = "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{\textregistered}) 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.",

author = "Takashi Sawai and Hiroaki Shinohara and Yoshihito Ikariyama and Masuo Aizawa",

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doi = "10.1016/0022-0728(90)87392-W",

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T1 - Electrical modulation of the solution pH near polyaniline and its composite electrodes

AU - Sawai, Takashi

AU - Shinohara, Hiroaki

AU - Ikariyama, Yoshihito

AU - Aizawa, Masuo

PY - 1990/4/25

Y1 - 1990/4/25

N2 - 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.

AB - 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.

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U2 - 10.1016/0022-0728(90)87392-W

DO - 10.1016/0022-0728(90)87392-W

M3 - 学術論文

AN - SCOPUS:0012972978

SN - 0022-0728

VL - 283

SP - 221

EP - 230

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

IS - 1-2

ER -

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

Abstract

ASJC Scopus subject areas

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