Dielectric and Ion Transport Studies in [PVA: LiC2H3O2]: Li2Fe5O8 Polymer Nanocomposite Electrolyte System

被引：29

作者：

Agrawal, S. L. ^{[2
]}

Singh, Markandey ^{[1
,2
]}

Asthana, Nidhi ^{[1
]}

Dwivedi, Mrigank Mauli ^{[1
]}

Pandey, Kamlesh ^{[1
]}

机构：

[1] Univ Allahabad, NCEMP, Allahabad 211002, Uttar Pradesh, India

[2] APS Univ, Dept Phys, Rewa, MP, India

来源：

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS | 2011年 / 60卷 / 04期

关键词：

DSC; impedance studies; polymer nanocomposite electrolyte; protonic and lithium ion conduction; MAGNETIC-PROPERTIES; FERRITE;

D O I：

10.1080/00914037.2010.504178

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The present work deals with the findings on optical and ion transport behavior in a ferrite-doped polymer nanocomposite electrolyte system, namely, [(100-x) PVA+xLiC2H3O2]: yLiFe5O8. This polymer electrolyte system has been characterized by SEM, DSC, IR and C-V measurements. The addition of filler seems to disturb the crystalline nature of the host matrix while the doping of salt shows a similar structure, but with a separate entity in SEM images. DSC studies reflect the interaction of the salt/filler with polymer with a change in morphology of the composite system. These results are well-corroborated by IR data. The effect of salt or filler in the enhancement of the a.c. conductivity of nanocomposite polymer electrolyte (NCPE) as well as dielectric relaxation behavior has been investigated with the help of impedance spectroscopy data. The a.c. conductivity of nanocomposite polymer electrolytes is seen to be best described by the universal power law.

引用

页码：276 / 289

页数：14

共 26 条

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