Studies of Ionic Conductivity and Dielectric Behavior in Polyacrylonitrile Based Solid Polymer Electrolytes

被引：6
|
作者：
Osman, Z. [1 ]
Isa, K. B. Md [1 ]
Othman, L. [1 ]
Kamarulzaman, N. [2 ]
机构：
[1] Univ Malaya, Dept Phys, Kuala Lumpur 50603, Malaysia
[2] Univ Teknol MARA, Ctr Nanomat Res, Inst Sci, Shah Alam, Malaysia
来源：
DIFFUSION IN SOLIDS AND LIQUIDS VI, PTS 1 AND 2 | 2011年 / 312-315卷
关键词：
Polymer electrolytes; PAN; ionic conductivity; dielectric constant; dielectric loss;
D O I：
10.4028/www.scientific.net/DDF.312-315.116
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：
The solid polymer electrolyte films consisting of polyacrylonitrile (PAN) as the host polymer, lithium triflate (LiCF3SO3) and sodium triflate (NaCF3SO3) as dopant salts were prepared by the solution cast technique. The pure PAN film was prepared as a reference. The films were characterized using a.c. impedance spectroscopy. At room temperature, the highest conductivity for the sample from the (PAN+LiCF3SO3) system and the (PAN+NaCF3SO3) system is 3.04 x 10(-4) Scm(-1) and 7.13 x 10(-4) Scm(-1), respectively. The temperature dependence of ionic conductivity for the highest conducting film from both systems follows the Arrhenius equation in the temperature range of 303 K to 353 K. The frequency dependence of ionic conductivity, a, complex permittivity, epsilon*, and complex electrical modulus, M* were studied at different temperatures. The ionic conductivity and the dielectric behavior are described in terms of ion diffusion and polarization.
引用
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页码：116 / +
页数：2
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