Electrical properties of Li1.3Ge1.4Ti0.3Al0.3(PO4)3 superionic ceramics

被引：14

作者：

Kazakevicius, E.

Urcinskas, A.

Kezionis, A.

Dindune, A.

Kanepe, Z.

Ronis, J.

机构：

[1] Vilnius State Univ, Fac Phys, LT-10222 Vilnius, Lithuania

[2] Riga Tech Univ, Inst Inorgan Chem, Riga, Latvia

来源：

ELECTROCHIMICA ACTA | 2006年 / 51卷 / 27期

关键词：

solid electrolyte ceramics; ionic conductivity; synthesis; transport properties;

D O I：

10.1016/j.electacta.2005.12.055

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Preparation and electrical characterization of NASICON-type compound, Li1.3Ge1.4Ti0.3Al0.3(PO4)(3), are described. The solid solution is obtained with Ge4+ -> Ti4+ and Ge4+ -> Al3+ substitutions in LiGe2(PO4)(3). The powder has been fabricated by a solid state reaction and the structural characteristics of it have been studied by X-ray. Ceramic samples have been sintered by varying the sintering duration from 1 to 3 h. Samples were studied by complex impedance spectroscopy in the frequency range 1 MHz-1.2 GHz and temperature range 300-600 K. Two regions of relaxation dispersion were found. The dispersions were related to the fast Li+ ion transport in the grains and grain boundaries. Variation of the sintering duration has no considerable effect on electrical properties of the ceramics. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：6199 / 6202

页数：4

共 30 条

[1] THE DETERMINATION OF HOPPING RATES AND CARRIER CONCENTRATIONS IN IONIC CONDUCTORS BY A NEW ANALYSIS OF AC CONDUCTIVITY [J].