EFFECT OF PH ON THE MEDIATED OXIDATION OF [FE(CN)6](4-) AT POLYANILINE FILM ELECTRODES - AN IMPEDANCE STUDY

被引：10

作者：

DESLOUIS, C ^{[1
]}

MUSIANI, MM ^{[1
]}

ELRHAZI, M ^{[1
]}

TRIBOLLET, B ^{[1
]}

机构：

[1] CNR,IST POLAROG & ELETTROCHIM PREPARAT,I-35020 CAMIN,ITALY

来源：

SYNTHETIC METALS | 1993年 / 60卷 / 03期

关键词：

D O I：

10.1016/0379-6779(93)91291-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The [Fe(CN)6]4- oxidation at polyaniline (PANI) modified electrodes was studied by electrohydrodynamical (EHD) and a.c. impedances at moderate acid concentrations (pH range 2-3). Experimental diagrams were obtained for different values of pH, potential, [Fe(CN)6]4- concentration, electrode rotation rate and film thickness and compared with a kinetic model developed by taking into account PANI acid-base equilibria. This model accounts for low frequency relaxation observed by both impedance techniques and explains in a semiquantitative way the influence of the experimental parameters.

引用

页码：269 / 278

页数：10

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