IMPEDANCE STUDY OF POLYPYRROLE FILMS DOPED WITH TETRATHIOMOLYBDATE ANIONS AND CONTAINING MOLYBDENUM TRISULFIDE

被引：36

作者：

YE, SY ^{[1
]}

GIRARD, F ^{[1
]}

BELANGER, D ^{[1
]}

机构：

[1] UNIV QUEBEC, DEPT CHIM, CP 8888, SUCC A, MONTREAL H3C 3P8, QUEBEC, CANADA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1993年 / 97卷 / 47期

关键词：

D O I：

10.1021/j100149a044

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polypyrrole films doped with tetrathiomolybdate anions and containing molybdenum trisulfide have been studied by electrochemical impedance spectroscopy. Quantitative estimate of the charge-transport rate in the composite material as a function of potential have been obtained. The dependence of the impedance behavior of the film on potential and film thicknesses have been also systematically studied. The results are interpreted on the basis of an adatom model. An equivalent circuit based on this model is proposed. The validity of this model to describe the behavior of the polymer electrode both in its neutral and oxidized states has been demonstrated, and a comparison with another model has been made.

引用

页码：12373 / 12378

页数：6

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