Co掺杂量对(CeO_2)_(0.92)(Y_2O_3)_(0.06)(Sm_2O_3)_(0.02)电解质材料性能的影响  

Effects of Co doping on(CeO_2)_(0.92)(Y_2O_3)_(0.06)(Sm_2O_3)_(0.02) solid electrolyte materials

作　　者：周明[1] 葛林[1] 李瑞锋[1] 郭露村[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《南京工业大学学报（自然科学版）》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)

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.

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 

分 类 号：TM911[电气工程—电力电子与电力传动]