材料工程2018，Vol.46Issue(5)：133-138,6.DOI:10.11868/j.issn.1001-4381.2017.000629
Co元素掺杂对CeO2基固态电解质导电行为的影响
Effects of Co-dopings on Electrical Behaviors of CeO2-based Solid Electrolyte
摘要
Abstract
Co element was added into Gd-doped ceria(GDC)powders by two methods namely lattice solution and preferred grain boundary segregation,respectively.The 10%(mole fraction,the same below)Gd-doped ceria(10GDC)solid solution powders were co-precipitated and then doped with 1% Co by the means of the two ways.These powders were named as 10GDC-1Co(SS)and 10GDC-1Co (GBS),respectively.Then the powders above were sintered at 1000°C for 1h to obtain 10GDC, 10GDC-1Co(SS)and 10GDC-1Co(GBS)ceramic samples.All the synthesized powders and sintered samples only consist of the CeO2 solid solution phase,and their grain sizes are 10.1-12nm and 59.8-112nm,respectively.The conductivities of 10GDC-1Co(SS)and 10GDC-1Co(GBS)samples are higher than that of 10GDC samples.When the test temperature is lower than 430℃,the conductivi-ties of 10GDC-1Co(GBS)samples are higher than that of 10GDC-1Co(SS)samples,but as the test temperature increases,the conductivities of 10GDC-1Co(GBS)samples are lower than that of 10GDC-1Co(SS)samples.关键词
CeO2基固态电解质/晶格固溶/晶界择优偏聚/电导率Key words
CeO2-based solid electrolyte/solid solution/grain boundary segregation/electrical conduc-tivity分类
通用工业技术引用本文复制引用
吴闪,朱延俊,赵梦媛,解昊,杨星,边凌锋,孟彬..Co元素掺杂对CeO2基固态电解质导电行为的影响[J].材料工程,2018,46(5):133-138,6.基金项目
国家自然科学基金项目(51462018) （51462018）
云南省大学生创新创业计划项目(201710674203) （201710674203）
