AN ELECTROCHEMICAL QUARTZ CRYSTAL MICROBALANCE STUDY OF THE INFLUENCE OF PH AND SOLUTION COMPOSITION ON THE ELECTROCHEMICAL-BEHAVIOR OF POLY(ANILINE) FILMS

被引:43
|
作者
BACSKAI, J
KERTESZ, V
INZELT, G
机构
[1] Department of Physical Chemistry, Eötvös University, Budapest, H-1518
关键词
POLYMER FILM ELECTRODES; POLY(ANILINE); QUARTZ CRYSTAL MICROBALANCE; PROTONATION; REDOX MECHANISM;
D O I
10.1016/0013-4686(93)85156-S
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
There is a significant accumulation of solution species in the film in all solution compositions and in the whole potential range studied. In 10 mol dm-3 HClO4 or H2SO4 solutions the films become highly swollen, which eventually leads to the dissolution of the films. Significant mass changes during the oxidation of the leucoemeraldine to emeraldine form can be observed only in the pH interval between pH 1 and 3, where the reduced poly(aniline) is practically unprotonated, while the half-oxidized material is protonated.
引用
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页码:393 / 397
页数:5
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