摘要
通过共沉淀法制备了Sm、Gd共同掺杂的CeO2的前驱体粉末,并将粉末经煅烧、压制、烧结制作成相应的电解质材料。对煅烧得到的电解质粉末及相应的电解质材料的性能进行了表征。实验结果表明:共沉淀法成功制备出了Sm、Gd共同掺杂的CeO2粉末。煅烧所得的电解质粉末具有良好的烧结活性,1400℃下烧结后相对密度达到93.4%。电导率的测试表明,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0.076 S.cm-1,有望成为中温固体氧化物燃料电池的电解质材料。
The precursors powders of Sm and Gd co-doped CeO2 were prepared by the co-precipitation method. Then through calcining, pressing and sintering, the final electrolyte materials were obtained . The properties of the electrolyte powders and the final electrolyte materials were characterized. The results showed that the predecessor powders of Sm and Gd co-doped CeO2 were successfully prepared by the co-precipitation method. And the electrolyte powders had a relatively high sinterability whose relative density was reach 93.4% after being sintered at 1400℃. The electrical property testing showed that the final electrolyte materials had the higher electrical conductivity at medium temperature which reach 0. 076S·cm^-1 at 800℃. It is a promising electrolyte material of IT-SOFC.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2008年第1期91-94,共4页
Bulletin of the Chinese Ceramic Society
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)
