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.

引用

页码：442 / 449

页数：8

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