CRYSTAL-STRUCTURE OF BETA-LEAD FLUORIDE DOPED POTASSIUM FLUORIDE AND IONIC-CONDUCTION

被引：12
|
作者：
ITO, Y
MUKOYAMA, T
KANAMARU, F
YOSHIKADO, S
机构：
[1] OSAKA UNIV,INST SCI & IND RES,IBARAKI,OSAKA 567,JAPAN
[2] DOSHISHA UNIV,DEPT ELECTR,KYOTO TANABAE 61003,JAPAN
来源：
SOLID STATE IONICS | 1994年 / 73卷 / 3-4期
关键词：
BETA-LEAD FLUORIDE DOPED POTASSIUM FLUORIDE; IONIC CONDUCTIVITY; FLUORINE; STRUCTURE;
D O I：
10.1016/0167-2738(94)90045-0
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：
Structural studies and ionic conductivity measurements have been carried out on a single crystal of beta-Pb0.9K0.1F1.9, which was synthesized using a dry method. The crystal is cubic: a==5.941(1) Angstrom, space group, Fm3m, z=4. The structure was refined to R=0.025 by least-square methods, using 83 unique observed reflections. The conductivity of this material is sigma T=1.4 (S cm(-1) K) at 300 K and the activation energy 0.24 eV. From these results it appears that the fluorine vacancies may be considered to be predominant mobile species in the extrinsic region. The phase is one of the best fluorine ion conductors.
引用
收藏
页码：283 / 287
页数：5
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