Synthesis and electrical properties of mixed-conducting YxSr1 _xTi0.6Fe0.4O3-δ
Synthesis and electrical properties of mixed-conducting YxSr1 _xTi0.6Fe0.4O3-δ
复制标题
混合导电YxSr1_xTi0.6Fe0.4O3-delta的合成及电学性能
DOI：
10.1016/j.matlet.2014.01.152
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发表时间：
2014-04-15
影响因子：
3
通讯作者：
Guo, Xing-Min
中科院分区：
文献类型：
--
作者：
Shan, Ke;Guo, Xing-Min
采用溶胶-凝胶法在1350 ℃合成了单相钙钛矿结构的YxSr 1-xTi0.6Fe0.4O3-delta（x=0.07，0.08，0.09）。研究了Y掺杂对YxSr_（1-x）Ti_（0.6）Fe_（0.4）O_（3-δ）电子和离子电导率的影响。在SrTiO 3基材料中，通过A位掺杂Y和B位掺杂Fe，可以显著提高材料的离子导电性。在本文中，我们报告了一个显着的提高Y，Fe共掺杂SrTiO_3的离子电导率的Y-掺杂量的增加在A-位。在800 ℃下，Y0.07Sr0.93Ti0.6Fe0.4O3-δ的总电导率和离子电导率分别为0.135 S/cm和0.017 S/cm，而Y0.09Sr0.91Ti0.6Fe0.4O3-δ的总电导率和离子电导率分别为0.056 S/cm和0.02 S/cm。(C)2014爱思唯尔有限公司版权所有。
A single phase perovskite, YxSr1-xTi0.6Fe0.4O3-delta (x=0.07, 0.08, 0.09), was synthesized at 1350 degrees C by the sol-gel method. The effects of Y-doping on the electronic and ionic conductivities of YxSr1-xTi0.6Fe0.4O3-delta were investigated. The ionic conductivity of SrTiO3-based materials can be significantly improved by Y-doping on the A-site and Fe-doping on the B-site. We report in this paper a remarkable enhancement of ionic conductivity of Y, Fe co-doped SrTiO3 by the increase in Y-doping amount on the A-site. The total electrical conductivity and ionic conductivity were 0.135 S/cm and 0.017 S/cm for Y0.07Sr0.93Ti0.6Fe0.4O3-delta at 800 degrees C, respectively, while were 0.056 S/cm and 0.02 S/cm for Y0.09Sr0.91Ti0.6Fe0.4O3-delta. (C) 2014 Elsevier B.V. All rights reserved.