Proton conduction in mixed perovskite-type oxides

被引：18
|
作者：
Sata, N
Yugami, H
Akiyama, Y
Sone, H
Kitamura, N
Hattori, T
Ishigame, M
机构：
[1] Tohoku Univ, Sci Measurements Res Inst, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Tohoku Univ, Fac Engn, Sendai, Miyagi 9808579, Japan
来源：
SOLID STATE IONICS | 1999年 / 125卷 / 1-4期
关键词：
perovskite-type oxides; solid solutions; proton conductor;
D O I：
10.1016/S0167-2738(99)00199-X
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：
Transparent solid solution crystals of Sr[CeZr](0.95)Yb0.05O3 were grown by the FZ-method using a Xe-arc imaging furnace to investigate proton conductivity in mixed perovskite-type oxides. It is observed that there are at least five different O-H stretching vibrational modes in these solid solutions and their intensities and peak wave numbers depend on the composition of Ce and Zr. The results of electrical conductivity showed that these materials are proton conductors as well as SrCe0.9Yb0.05O3 and SrZr0.95Yb0.05O3. The IR-absorption intensity and the electrical conductivity have their maxima at x = 0.8 in Sr[CexZr1-x](0.95)Yb0.05O3. The Raman spectra of solid solutions suggest that the lattice distortion was changed by addition of SrZr0.95Yb0.05O3 to SrCe0.95Yb0.05O3. (C) 1999 Elsevier Science BN. All rights reserved.
引用
收藏
页码：383 / 387
页数：5
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