Vibrational spectroscopic and conductimetric studies of lithium battery electrolyte solutions

被引:12
作者
Alves, Wagner A. [1 ]
机构
[1] Univ Fed Rural Rio de Janeiro, Inst Ciencias Exatas, Dept Quim, BR-23890000 Seropedica, RJ, Brazil
关键词
vibrational spectroscopy; conductimetry; LiClO4; acetonitrile; formamide;
D O I
10.1016/j.vibspec.2006.10.005
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Extremely high concentrated solutions of lithium perchlorate in formamide and acetonitrile equimolar mixture were investigated by spectroscopic and conductimetric techniques. The spectral changes observed in the characteristic bands of the solvents, the appearance of the band at 939 cm(-1) and the slight increase of conductivity in all solutions were interpreted in terms of a solvent separated ion pairs model. In fact, the mixture of solvents with considerable differences in the donor-acceptor characters allows to prepare electrolytic solutions where the contact ion pairs formation seems uncertain. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:197 / 200
页数:4
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