PROTONIC CONDUCTION IN THE SINGLE-CRYSTALS OF SRZRO3 AND SRCEO3 DOPED WITH Y2O3

被引：178

作者：

SHIN, S ^{[1
]}

HUANG, HH ^{[1
]}

ISHIGAME, M ^{[1
]}

IWAHARA, H ^{[1
]}

机构：

[1] NAGOYA UNIV,FAC ENGN,SYNTHET CRYSTAL RES LAB,CHIKUSA KU,NAGOYA,AICHI 464,JAPAN

来源：

SOLID STATE IONICS | 1990年 / 40-1卷

关键词：

D O I：

10.1016/0167-2738(90)90151-G

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：

Single crystals of SrZrO3 and SrCeO3 doped with Y2O3 were made by floating zone method and their electric conductivities were measured. The bulk protonic conduction is confirmed for both crystals. The activation energies are evaluated to be 0.45 and 0.56 eV for SrZr0.95Y0.05O3-α and SrCe0.95Y0.05O3-α, respectively. From the isotopic effect, it is found that t proton tunneling effect is negligible and the protonic migration is well explained by the thermal activation mechanism. Infrared absorption measurements show that the proton is bound in the interstitial sites by oxygen ions. © 1990.

引用

页码：910 / 913

页数：4