MEDIATED OXIDATION OF HYDROQUINONE ON POLY(N-ETHYLCARBAZOLE) - ANALYSIS OF TRANSPORT AND KINETIC PHENOMENA BY IMPEDANCE TECHNIQUES

被引：15

作者：

DESLOUIS, C ^{[1
]}

MUSIANI, MM ^{[1
]}

TRIBOLLET, B ^{[1
]}

机构：

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

来源：

SYNTHETIC METALS | 1990年 / 38卷 / 02期

关键词：

D O I：

10.1016/0379-6779(90)90104-S

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The oxidation of hydroquinone on Pt electrodes modified by electrosynthesized p-ethylcarbazole is studied in 5 M HClO4. Electrohydrodynamical and a.c. impedance measurements yield the redox capacitance of the film and electron diffusivity DE with reasonable dependence on the thickness. DE values near to 10-7 cm2 s-1 confirm the average conductivity of this polymer. Charge-transfer resistances in agreement with α = 0.5 are measured. These results a posteriori justify the hypotheses put forward when developing the theoretical impedance model used for the analysis of the data. © 1990.

引用

页码：195 / 203

页数：9

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