摘要
采用固相反应法合成CeO2基电解质材料(1-x)(CeO2)0.92(Y2O3)0.06(Sm2O3)0.02+xCoO1.5(x=0、0.5%、1%和2%),并在不同温度下烧成。结果表明,添加Co的试样经1 500℃烧成之后合成了单一的立方萤石结构相,Co可以有效促进试样的烧结,降低烧结温度约100℃;其中Co的添加量为0.5%时,试样表现出最高的离子电导率和最低的活化能。同时发现Co的添加对试样的热膨胀系数影响不大。
The ceria-based solid electrolyte materials （ 1 - x ） （CeO2）0.92（Y2O3）0.06（Sm2O3）0.02 ＋ xCoO1.5 （x = 0, 0.5%, 1% and 2% ） were prepared by solid state reaction method and sintered at different temperatures. The results showed that the Co doped samples all exhibited a single cubic fluorite phase after sintered at 1 500℃, and Co could effectively promote the sintering process and decrease the sintering temperature by 100 ℃. The maximum conductivity and the minimum activation energy were achieved with 0. 5% Co addition. Meanwhile, the effects of Co addition on the thermal expansion were insignificant.
出处
《南京工业大学学报（自然科学版）》
CAS
北大核心
2013年第1期10-13,共4页
Journal of Nanjing Tech University(Natural Science Edition)
基金
江苏省科技支撑计划(工业部分)(BE2009169)
关键词
氧化铈基电解质
固相反应
烧结过程
离子电导
热膨胀
ceria-based electrolyte
solid state reaction
sintering process
ionic conductivity
thermal expansion
