Electrochemical study of the degradation kinetics of polyaniline powder in sulfuric and hydrochloric acid media

被引：11

作者：

Vivier, V

Cachet-Vivier, C

Regis, A

Sagon, G

Nedelec, JY

Yu, LT

机构：

[1] Univ Paris 12, UMR 7582 CNRS, Lab Electrochim Catalyse & Synthese Organ, F-94320 Thiais, France

[2] Univ Paris 06, UMR 7075 CNRS, Lab Dynam Interact & React, F-94320 Thiais, France

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2002年 / 6卷 / 08期

关键词：

cavity microelectrode; polyaniline; polymer degradation; cyclic voltammetry;

D O I：

10.1007/s10008-002-0267-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Investigation of the degradation kinetics of polyaniline (PANi) powder has been performed with a cavity microelectrode in sulfuric and hydrochloric acid electrolytes using cyclic voltammetry. It was shown that the overall degradation mechanism is limited by first-order reaction kinetics. The rate constant of the polymer hydrolysis was found to be lower than the one determined for thin films. The influence of the electrolyte concentration was also investigated and compared with our previous work on the use of PANi as a battery material.

引用

页码：522 / 527

页数：6

共 42 条

[11] INSITU DETERMINATION OF GRAVIMETRIC AND VOLUMETRIC CHARGE-DENSITIES OF BATTERY ELECTRODES - POLYANILINE IN AQUEOUS AND NONAQUEOUS ELECTROLYTES [J].