Sm,Nd共掺CeO_2基固体电解质的抗还原性能  

Anti-Reductive Properties of Sm^(3+) and Nd^(3+) Co-Doped Ceria-Based Solid Electrolyte

作　　者：欧刚[1] 李彬[1] 刘巍[1] 刘红芹[1] 周静[2] 潘伟[1] 

机构地区：[1]清华大学新型陶瓷与精细工艺国家重点实验室,北京100084 [2]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《稀有金属材料与工程》2011年第S1期1-3,共3页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(50872063)

摘　　要：采用甘氨酸-硝酸盐法(GNP)制备Ce0.8SmxNd0.2-xO1.9(x=0.05,0.1,0.15)(SNDC)粉末,通过XRD和SEM等表征粉末和陶瓷样品的物相和微观形貌,并测量烧结样品在空气和还原气氛下的电导率。结果表明Ce0.8Sm0.1Nd0.1O1.9的电性能和抗还原性能均为3种组分中最好的,800℃时,在空气中电导率为4.96×10-2S/cm,在还原气氛中电导率增加率为12.56%。The technique of electrospinning was employed to fabricate Sm2O3 and Nd2O3 co-doped CeO2 nanofiber electrolytes. The phases and morphology were observed by X-ray diffraction, scan electron microscopy, and transmission electron microscope. With respect to calcination temperature, the electrical conductivity of the nanofiber electrolytes was measured in air. The results indicate that the nanofibers calcined at various temperatures all exhibit a cubic fluorite structure. The nanofibers calcined at 400 oC with an average diameter of 402 nm and grain size of 5 nm have the highest electrical conductivity.

关 键 词：静电纺丝 纳米纤维 CEO2 电导率 

分 类 号：TM911.4[电气工程—电力电子与电力传动]