Investigation of chemical state of Fe and ozide ion deficiency in La1-zSrzGa1-y-zFeyMgzO3-δ by M(o)ssbauer spectroscopy

摘要：

M(o)ssbauer spectroscopy was carried out for analysis of chemical state of Fe in La1-xSrxGa1-y-zFeyMgzO3-δ system, which attracts interest as new oxide ion conductor operated around 600℃. It was revealed that significant amount of holes were induced by partial Mg substitution for Sr-free LaGa0.8-xFe0.2MgxO3-δ, while largeδ can be generated by Sr substitution of La1-xSrxGa0.7Fe0.2Mg0.1O3-δ system. This showed agreement with high oxide ion conductivity and transference number of oxide ion in La0.7Sr0.3 Ga0.7Fe0.2Mg0.1O3-δ.

关键词： La1-zSrzGa1-y-zFeyMgzO3-δ Ozide ion conductor Mossbauer spectroscopy Ozide ion deficiency Mized conduction

作者: O.Wakamatsu M.Yamaguchi T.Fumoto T.Hashimoto A.Kuno M.Matsuo

作者单位: Department of Integrated Sciences in Physics and Biology, College of Humanities and Sciences, Nihon Department of Multidisciplinary Sciences, Graduate School of Arts and Sciences, The University of To

会议类型: 国际会议

会议名称: The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)

会议地点: 上海

会议语种:英文

页码: 1000-1003

在线出版日期: 2007-07-01（万方平台首次上网日期，不代表论文的发表时间）