Ti和Y双掺杂的BaCeO_3的制备和电性能研究  

reparation and electrical characteristic of Ti and Y co-doped BaCeO_3

作　　者：刘魁[1] 戴磊[2] 唐晓微[2] 赵佳一[2] 王岭[2] 杨海超[2] 

机构地区：[1]河北科技大学理学院,河北石家庄050000 [2]河北理工大学化工与生物技术学院,河北唐山063009

出　　处：《功能材料》2010年第1期51-54,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50772030;50972038);唐山市科技局资助项目(04364001B-10);教育部归国人员启动基金

摘　　要：以BaCO3、CeO2、Y2O3、TiO2为原料,利用高温固相法制备了固体电解质BaCe0.8YxTi0.2-xO3-δ(x=0、0.05、0.07、0.1、0.15、0.20),并对其物相、微观结构、收缩率、烧结性、电导率进行了研究。通过改变掺杂Ti和Y的配比,来优化固体电解质的性能。结果表明,Ti和Y双掺杂的BaCeO3具有钙钛矿型结构;质子导体BaCe0.8YxTi0.2-xO3-δ的电导率随着Y的含量的增加而增加,而烧结性能随着Ti的含量的增加而越好;通过对样品的收缩率的研究,说明Ti的加入具有助烧的作用。The solid electrolyte of BaCe0.8YxTi0.2-xO3-δ（x=0,0.05,0.07,0.1,0.15,0.20） were synthesized by solid-state reactions using BaCO3,CeO2,Y2O3,TiO2 as the starting materials. The phase,microstructure,sintering behavior,shrinkage and conductivity were investigated. The performance of solid electrolyte were optimized by change Ti and Y concentration. The results show that Ti and Y co-doped BaCeO3 have orthohormbic perovskite structrue. The conductivity of BaCe0.8YxTi0.2-xO3-δ increased as Y concentration increased. The sinterability improved with increasing Ti concentration. The addition of Ti improve sinterability by the results of shrinkage.

关 键 词：钙钛矿型氧化物 电导率 BACEO3 TI Y 

分 类 号：TG146.4[一般工业技术—材料科学与工程]