Electrical characteristics of Li(Ni7/10Fe3/10)VO4 ceramics

被引:32
作者
Ram, Moti [1 ]
机构
[1] Indian Inst Technol, Dept Phys & Meteorol, Kharagpur 721302, W Bengal, India
关键词
Ceramics; Solution-based chemical method; Complex impedance spectroscopy; ELECTROCHEMICAL PROPERTIES; DIELECTRIC-PROPERTIES; ELECTRONIC-STRUCTURE; IMPEDANCE; OXIDE; LIFE1/2NI1/2VO4; SPECTROSCOPY; BATTERIES; COMPOUND; LIFEVO4;
D O I
10.1016/j.jallcom.2010.09.212
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 compound [Li(Ni7/10Fe3/10)VO4] was produced by a solution-based chemical route whose electrical properties were investigated using complex impedance spectroscopy technique. X-ray diffraction study reveals an orthorhombic unit cell structure of the compound. Complex electrical impedance analysis exhibits: (i) grain interior, grain boundary and electrode-material interface contributions to electrical response and (ii) the presence of temperature dependent electrical relaxation phenomena in the material. Electrical conductivity study indicates that electrical conduction in the material is a thermally activated process. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:1744 / 1748
页数:5
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