PREPARATION, STRUCTURAL CHARACTERIZATION AND IONIC CONDUCTIVITY STUDIES OF CALCIUM DOPED LiZr2(PO4)3

被引：0
|
作者：
Prabu, M. [2 ,3 ]
Reddy, M. V. [2 ]
Selvasekarapandian, S. [1 ]
Rao, G. V. Subba [2 ]
Chowdari, B. V. R. [2 ]
机构：
[1] Mat Res Ctr, Coimbatore 641045, Tamil Nadu, India
[2] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
[3] Kalasalingam Univ, Dept Phys, Krishnankoil 626126, Tamil Nadu, India
来源：
Solid State Ionics: Ionics for Sustainable World | 2013年
关键词：
NEUTRON-DIFFRACTION; MOBILITY; NASICON;
D O I：
暂无
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：
Compounds with NASICON-type structure, Li1+2x (Ca Zr-x(2-x))(PO4)(3), (x= 0.1 and 0.15) are prepared by the high temperature solid state reaction and are characterized by Rietveld refined X-ray diffraction, scanning electron microscopy and BET surface area techniques. Ca-substitution stabilizes the rhombohedral structure of the NASICON-phase. Ionic conductivities, sigma ( ionic) were determined in the temperature range of 27-300 degrees C by impedance spectroscopy. Results showed a s ionic (total) at 300K of 0.4x10(-6) S cm(-1) and 0.2x10(-6) S cm(-1), respectively, for x= 0.1 and 0.15. The activation energy (E-a) = 0.57eV and 0.61eV, respectively in the temperature range 27-300 degrees C.
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页码：442 / 449
页数：8
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