IT-SOFC电解质Ce_(0.8)Sm_(0.2)O_(1.9)的制备与性能  

Preparation and performance of electrolytes Ce_(0.8)Sm_(0.2)O_(1.9) for IT-SOFC

作　　者：荆波[1,2] 孙俊才[2] 

机构地区：[1]大连海事大学物理系,辽宁大连116026 [2]大连海事大学材料工艺研究所,辽宁大连116026

出　　处：《大连海事大学学报》2011年第1期128-130,共3页Journal of Dalian Maritime University

基　　金：中央高校基本科研业务费专项资金(2009JC016)

摘　　要：采用柠檬酸硝酸盐法合成出钐掺杂的氧化铈电解质Ce0.8Sm0.2O1.9(SDC)粉体,XRD结果显示该粉体为单相萤石结构.将粉体干压成型,在1400℃下烧结10 h可得到高致密度电解质.通过烧结实验,分析样品的烧结温度和密度,并测量其热膨胀曲线.以Ce0.8Sm0.2O1.9作为电解质组成单电池,在850℃其最大输出功率密度为106 mW/cm2.Sm-doped CeO2 Ce0.8Sm0.2O1.9（SDC） electrolyte powders were prepared by citric-nitrate process.X-ray diffraction patterns show that SDC was a fluorite single-phase powder.A high density electrolyte could be obtained after the powders were dry pressed and sintered at 1400 ℃ for 10 h.Sinter temperature and density were analyzed,and thermal expansion curves were also measured.A single fuel cell containing the electrolyte with the maximum power density 106 mW/cm2 at 850 ℃ is examined.

关 键 词：中温固体氧化物燃料电池 电解质 Ce0.8Sm0.2O1.9 

分 类 号：TM911.4[电气工程—电力电子与电力传动]