Impedance spectroscopy study of poly(ethylene oxide) sodium hexafluortitanate complex

被引：8

作者：

Huguenin, F

Cavalcante, MG

Torresi, RM

机构：

[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

[2] Univ Fed Rio Grande Norte, Dept Quim, BR-59078970 Natal, RN, Brazil

来源：

SOLID STATE IONICS | 1999年 / 126卷 / 3-4期

基金：

巴西圣保罗研究基金会;

关键词：

poly(ethylene oxide); impedance spectroscopy; polymeric electrolytes; ionic conductivity;

D O I：

10.1016/S0167-2738(99)00241-6

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：

In this work, P(EO)(8)Na2TiF6, P(EO)(24)Na2TiF6 and P(EO)(31)Na2TiF6 complexes have been investigated analyzing electric properties concerning relaxation and diffusion processes. A diffusion-migration model was used to simulate the charge transport mechanism. This model allowed to evaluate the cation majority contribution to this mechanism. Activation energies of migratory and diffusion processes were estimated on the basis of Arrhenius's equation due to the linear dependence of conductivity and diffusion coefficients with temperature, typical for semi-crystalline materials. (C) 1999 Elsevier Science BN. All rights reserved.

引用

页码：259 / 267

页数：9

共 43 条

[1] Electrochemical comparison of several cross-linked polyethers [J].