Preparation and electrochemical properties of perovskite CexLi0.5-xCa0.5TiO3 composites

摘要：

　　Composites with perovskite structure based on lithium and cerium co-doped CaTiO3,CexLi0.5-xCa0.5TiO3 was prepared by the sol-gel method.Phase structure and morphology of the powders were carried out by X-ray diffraction(XRD)and transmission electron microscopy(TEM).The results show that the CexLi0.5-xCa0.5TiO3 powders have cubic perovskite structures after sintered above 800 oC and the mean size of the CexLi0.5-xCa0.5TiO3 powders is about 60 nm.A study of ionic conductivity by electrochemical impedance spectroscopy(EIS)implies that the conductivity of CexLi0.5-xCa0.5TiO3 increases with the increasing of the contents of Ce3+dopant and reaches a maximum value of 2.1×10-4 S·cm-1 at x = 0.05,and then decreases for x>0.05.

作者: J H Cheng C A Tian

作者单位: Department of Chemistry and Materials Engineering,Hefei University,Hefei,230601 Anhui,China

会议类型: 国际会议

会议名称: 第二届新型材料与化学工业国际学术会议

会议地点: 三亚

会议语种:英文

页码: 1-6

在线出版日期: 2017-11-18（万方平台首次上网日期，不代表论文的发表时间）