DSC and conductivity studies on PVA based proton conducting gel electrolytes

被引：80

作者：

Agrawal, SL ^{[1
]}

Awadhia, A ^{[1
]}

机构：

[1] APS Univ, Dept Phys, Rewa 486 003, India

来源：

BULLETIN OF MATERIALS SCIENCE | 2004年 / 27卷 / 06期

关键词：

polymer gel electrolytes; ionic conductivity; solvent free polymer electrolytes;

D O I：

10.1007/BF02707280

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An attempt has been made in the present work to prepare polyvinyl alcohol (PVA) based proton conducting gel electrolytes in ammonium thiocyanate (NH4SCN) solution and characterize them. DSC studies affirm the formation of gels along with the presence of partial complexes. The cole-cole plots exhibit maximum ionic conductivity (2-58 x 10(-3) S cm(-1)) for gel samples containing 6 wt% of PVA. The conductivity of gel electrolytes exhibit liquid like nature at low polymer concentrations while the behaviour is seen to be affected by the formation of PVA-NH4SCN complexes upon increase in polymer content beyond 5 wt%. Temperature dependence of ionic conductivity exhibits VTF behaviour.

引用

页码：523 / 527

页数：5

共 23 条

[1]

Agrawal SL, 2000, INDIAN J PURE AP PHY, V38, P53

[2] MICROSCOPIC INVESTIGATION OF IONIC-CONDUCTIVITY IN ALKALI-METAL SALTS POLY(ETHYLENE OXIDE) ADDUCTS [J].