Analysis of the long-term potential stability of an all-solid-state potassium-selective electrode with electroactive polypyrrole film

Toshiyuki Momma; Mayumi Yamamoto; Shinichi Komaba; Tetsuya Osaka

doi:10.1016/0022-0728(95)04459-0

Analysis of the long-term potential stability of an all-solid-state potassium-selective electrode with electroactive polypyrrole film

Toshiyuki Momma, Mayumi Yamamoto, Shinichi Komaba, Tetsuya Osaka

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

28 Citations (Scopus)

Abstract

By coating an electroactive polypyrrole (PPy) film electrode with a plasticized poly(vinyl chloride) (PVC) membrane containing valinomycin, an all-solid-state potassium-selective electrode was fabricated. The polymerizing conditions of the PPy film were optimized for stable ionic responses. The electrochemical characteristics of these electrode systems were evaluated by an a.c. impedance method with respect to the mechanism of potential drift. The steady-state response over several days, which depended on the electrode configuration, was related to the impedance behavior of the electrode systems.

Original language	English
Pages (from-to)	91-96
Number of pages	6
Journal	Journal of Electroanalytical Chemistry
Volume	407
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-0728(95)04459-0
Publication status	Published - 1996 May 10

Keywords

All-solid-state potassium-selective electrode
Electrochemistry
Electropolymerisation
Polypyrrole film

ASJC Scopus subject areas

Analytical Chemistry
Chemical Engineering(all)
Electrochemistry

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10.1016/0022-0728(95)04459-0

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AU - Momma, Toshiyuki

AU - Yamamoto, Mayumi

AU - Komaba, Shinichi

AU - Osaka, Tetsuya

PY - 1996/5/10

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N2 - By coating an electroactive polypyrrole (PPy) film electrode with a plasticized poly(vinyl chloride) (PVC) membrane containing valinomycin, an all-solid-state potassium-selective electrode was fabricated. The polymerizing conditions of the PPy film were optimized for stable ionic responses. The electrochemical characteristics of these electrode systems were evaluated by an a.c. impedance method with respect to the mechanism of potential drift. The steady-state response over several days, which depended on the electrode configuration, was related to the impedance behavior of the electrode systems.

AB - By coating an electroactive polypyrrole (PPy) film electrode with a plasticized poly(vinyl chloride) (PVC) membrane containing valinomycin, an all-solid-state potassium-selective electrode was fabricated. The polymerizing conditions of the PPy film were optimized for stable ionic responses. The electrochemical characteristics of these electrode systems were evaluated by an a.c. impedance method with respect to the mechanism of potential drift. The steady-state response over several days, which depended on the electrode configuration, was related to the impedance behavior of the electrode systems.

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KW - Electropolymerisation

KW - Polypyrrole film

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