Phase diagram, crystal chemistry and lithium ion conductivity in the Perovskite-type system Pr0.5+xLi0.5-3xTiO3

被引：37

作者：

Morales, M

West, AR

机构：

[1] UNIV ABERDEEN,DEPT CHEM,ABERDEEN AB9 2UE,SCOTLAND

[2] UNIV BARCELONA,DEPT QUIM INORGAN,E-08028 BARCELONA,SPAIN

来源：

SOLID STATE IONICS | 1996年 / 91卷 / 1-2期

关键词：

perovskite-type systems; phase diagram; crystal chemistry; lithium ion conductivity; stoichiometry;

D O I：

10.1016/S0167-2738(96)00420-1

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 stoichiometry, polymorphism and electrical behaviour of solid solutions Li0.5-3xPr0.5+xTiO3 with perovskite-type structure have been studied. Data are shown in the form of a phase diagram, XRD patterns for the three polymorphs, A, C, and beta, temperature- and composition-dependence of their lattice parameters and Arrhenius conductivity plots. Microstructure and composition were studied by electron probe microanalysis. Maximum conductivity is 4 x 10(-6) S cm(-1) at 25 degrees C for x = 0.08. An insulating surface layer, seen in samples coated with Au electrodes, disappears in contact with molten LiClO4.

引用

页码：33 / 43

页数：11

共 24 条

[1] THE EXTRACTION OF IONIC CONDUCTIVITIES AND HOPPING RATES FROM AC CONDUCTIVITY DATA [J].