复合阴极材料SSC-YWO的制备及性能分析  

Preparation and Performance Analysis of Composite Cathode Material SSC-YWO

作　　者：王馨 刘妍 陈佳欢 石浩辰 WANG Xin;LIU Yan;CHEN Jiahuan;SHI Haochen(College of Physics,Changchun Normal University,Changchun 130032,China)

机构地区：[1]长春师范大学物理学院,吉林长春130032

出　　处：《长春师范大学学报》2024年第2期178-181,共4页Journal of Changchun Normal University

基　　金：国家级大学生创新创业训练计划项目“高性能电极材料的制备及在燃料电池新能源设备中的应用”(202210205018)。

摘　　要：采用固相法制备Sm_(0.5)Sr_(0.5)CoO_(3)-δ(SSC)-Y_( 2)W_(3)O_(12)(YWO)复合阴极材料SSC-YWO,并研究该材料的物相组成、热重、Co的平均价态和氧含量。实验结果表明,SSC和YWO在1050℃以内的化学相容性良好;晶格氧的丢失和氧空位的形成造成该材料在80℃左右失重较大;Co离子的平均价态和氧含量随YWO的含量升高而降低,氧空位浓度提升。The cathode material SSC-YWO was synthesized by solid-state method.The phase composition,thermogravimetric analysis,average valence state of Co and oxygen content of the material were studied.The results show that SSC and YWO have good chemical compatibility within 1050℃.The loss of lattice oxygen and the formation of oxygen vacancies result in significant weight loss of the material at around 80℃.The average valence state and oxygen content of Co ions decrease with the increase of YWO content,while the oxygen vacancy concentration increases.

关 键 词：复合阴极材料 物相组成 氧空位 

分 类 号：TM911.4[电气工程—电力电子与电力传动]