四川师范大学学报（自然科学版）2012，Vol.35Issue(3)：370-372,3.DOI:10.3969/j.issn.1001-8395.2012.03.018
氧离子导体La2Mo2-yNbyO9-δ结构和导电性能研究
Researches on the Structures and Conductivities of the La2Mo2-yNbyO9-δ Oxide-ion Conductors
摘要
Abstract
various oxide-ion conductors La2Mo2_yNbrO9_δ(y =0,0.1,0.2,0. 3) were prepared with solid-state reaction method. Their structures and ionic conductivities were characterized with XRD and dielectric measurements. The results show that the solu-bility of Nb5+ in La2Mo2O9 sample is smaller than 0. 15 mol, and the Nb5+ can not suppress the α/β transition in pure La2Mo2O9. The conductivity of La2Mo2-y,Nb,O9-δ(y =0. 1,0.2) is a little higher than that of the pure La2Mo2O9. The reason may be the similar radius of Nb5+ with Mo6 + and the little difference between the oxidation state of them. which makes the increasing amplitude of the solid solubility and conductivity slightly.关键词
氧离子导体/La2Mo2O9/交流阻抗/电导率Key words
oxide-ion conductor/ La2Mo2O9/ ac impedance/ conductivity分类
信息技术与安全科学引用本文复制引用
李相虎,李丹..氧离子导体La2Mo2-yNbyO9-δ结构和导电性能研究[J].四川师范大学学报（自然科学版）,2012,35(3):370-372,3.基金项目
湖北省教育厅科学研究计划项目(Q20091802和Q20101705)资助项目 （Q20091802和Q20101705）
