XANES study of polyaniline-V2O5 and sulfonated polyaniline-V2O5 nanocomposites

被引：33

作者：

Huguenin, F ^{[1
]}

Ticianelli, EA ^{[1
]}

Torresi, RM ^{[1
]}

机构：

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

来源：

ELECTROCHIMICA ACTA | 2002年 / 47卷 / 19期

基金：

巴西圣保罗研究基金会;

关键词：

XANES study; polyaniline-V2O5; sulfonated polyaniline-V2O5; nanocomposites;

D O I：

10.1016/S0013-4686(02)00237-2

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this work, two materials for secondary lithium battery cathodes formed by polyaniline-V2O5 and sulfonated polyaniline V2O5, which have a higher charge capacity than the V2O5 xerogel, were synthesized. X-ray absorption and Fourier transform infrared spectroscopies were employed to analyze the short-range interactions in these materials. Based on these experiments, it was possible to observe significant differences in the symmetry of the VO5 units, and this was attributed to the intimate contact between V2O5 and the polymers, and to some flexibility of the VO5 square pyramids due to the low range order of the nanocomposites. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.

引用

页码：3179 / 3186

页数：8

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