Synthesis and structural analysis of lithium nickel vanadate

被引：7
作者：
Bhuvaneswari, MS
Selvasekarapandian, S [1 ]
Kamishima, O
Kawamura, J
Hattori, T
机构：
[1] Bharathiar Univ, Dept Phys, Solid State & Radiat Phys Lab, Coimbatore 641046, Tamil Nadu, India
[2] Tohoku Univ, Inst Multidisciplinary Res Avd Mat, Sendai, Miyagi 980, Japan
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2005年 / 91卷 / 01期
关键词：
inverse spinel; lithium nickel vanadate; particle size analysis; impedance spectroscopy;
D O I：
10.1016/j.matchemphys.2004.10.054
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The compound LixNiVO4 (X = 0-8; 1.0; 1.2) has been prepared by a solid state reaction method at 800degreesC. The X-ray diffraction pattern of Li1.2NiVO4 shows the absence of the (111) line, indicating the occupation of more vanadium ions on the tetrahedrally coordinated interstices. The averaged size of the particles and the grain size have been found to be around 2-10 mum. The grain interior and grain boundary resistance values are found to be 4.08 x 10(5) and 1.45 x 10(6) Omegacm(-1) at 573 K. The formal activation energy, describing the temperature dependence of conductivity of Li0.8NiVO4, was found to be 0.64 eV. (C) 2004 Elsevier B.V. All rights reserved.
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页码：94 / 98
页数：5
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