摘要
通过凝胶浇注法制备了Sm,Gd共同掺杂的CeO2(SGC)粉末,将制得的粉末经1400℃高温烧结4h得到相应的SGC电解质烧结体,并对SGC粉末及相应的烧结体的性能进行了表征。实验结果表明:凝胶浇注法制备出了Sm,Gd共同掺杂的纳米CeO2粉末;所得粉末有良好的烧结活性,1400℃下烧结所得电解质材料的相对密度大于94%。电导率的测试表明,SGC电解质材料在中温范围有较高的电导率,800℃时,其电导率达到了0.082S·cm-1,有望成为中温固体氧化物燃料电池的电解质材料。
Sm and Gd co-doped CeO2 （SGC） powders were prepared by the gel-casting method. The sintered SGC materials were obtained by sintering the resulted powder at 1400 ℃ for 4 h. The properties of the powders and the sintered SGC materials were characterized. The results showed that the SGC powders with nanometer size were successfully prepared by the gel-casting method and they had a relatively high sinter ability and its relative density was above 94% after sintering at 1400 ℃. It also showed that the sintered SGC materials at intermediate temperature had the higher electrical conductivity which reached 0.082 S·cm^-1 at 800 ℃. It would be a promising electrolyte material of IT-SOFC.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2008年第2期195-198,共4页
Chinese Journal of Rare Metals
基金
南昌航空大学自选课题(EC200501014)
南昌航空大学大学生科技创新项目(106068220050)资助
