Investigation of chemical state of Fe and oxide ion deficiency in La1-xSrxGa1-y-zFeyMgzO3-δ by Mossbauer spectroscopy

被引：2
|
作者：
Wakamatsu, O. [1 ]
Yamaguchi, M. [1 ]
Fumoto, T. [1 ]
Hashimoto, T. [1 ]
Kuno, A. [2 ]
Matsuo, M. [2 ]
机构：
[1] Nihon Univ, Coll Humanities & Sci, Dept Integrated Sci Phys & Biol, Setagaya Ku, Tokyo 1568550, Japan
[2] Univ Tokyo, Grad Sch Arts & Sci, Dept Multidisciplinary Sci, Meguro Ku, Tokyo 1538902, Japan
来源：
SOLID STATE IONICS | 2008年 / 179卷 / 21-26期
关键词：
La1-xSrxGa1-y-zFeyMgzO3-delta; oxide ion conductor; Mossbauer spectroscopy; oxide ion deficiency; mixed conduction;
D O I：
10.1016/j.ssi.2008.02.025
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：
Mossbauer spectroscopy was carried out for analysis of chemical state of Fe in La1-xSrxGa1-y-zFeyMgzO3-delta system, which attracts interest as new oxide ion conductor operated around 600 degrees C. It was revealed that significant amount of holes were induced by partial Mg substitution for Sr-free LaGa0.8-xFe0.2MgxO3-delta, while large delta can be generated by Sr substitution of La1-xSrxGa0.7Fe0.2Mg0.1O3-delta system. This showed agreement with high oxide ion conductivity and transference number of oxide ion in La0.7Sr0.3Ga0.7Fe0.2Mg0.1O3-delta. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1000 / 1003
页数：4
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