稀土元素Ce掺杂对CaMnO3基热电材料的微观结构及高温电性能的影响OA北大核心CSTPCD
Influence of Ce Doping on the Microstructure and High-temperature Electrical Property of CaMnO3 Ceramics
CaMnO3因其结构中元素在自然界中的丰度大、低毒和具有高温热和化学稳定性等优势而被认为是一类具有潜力的热电材料,但其较大的电阻率影响了热电性能的进一步提高.在钙位掺杂高价态稀土金属离子是降低其电阻率的有效途径.采用共沉淀法制备了一系列Ca1-xCexMnO3(x=0,0.02,0.04,0.06,0.10)热电材料.利用XRD,SEM等方法对材料的物相及断面形貌进行了表征,利用四探针法同时测量了CaMnO3材料的电阻率,Seebeck系数.XR…查看全部>>
CaMnO3 has attracted increasing attention as one of the most promising n-type thermoelectric materials due to its natural abundance,low toxicity,high-temperature thermal and chemical stability.However,the thermoelectric properties of CaMnO3 were discouraging for its high electrical resistivity.High-valence rare earth doping at Ca site is an effective way to reduce the electrical resistivity.The Ca1-x Cex MnO3 (x =0,0.02,0.04,0.06,0.10) was synthesized using …查看全部>>
孙丽娟;李翠芹;陈前林;周栋珍;文娅;刘军;颜宇
贵州大学化学与化工学院,贵阳550025贵州大学化学与化工学院,贵阳550025贵州大学化学与化工学院,贵阳550025贵州大学化学与化工学院,贵阳550025贵州大学化学与化工学院,贵阳550025贵州大学化学与化工学院,贵阳550025贵州大学化学与化工学院,贵阳550025
数理科学
CaMnO3材料高温电输运性能Ce掺杂共沉淀法
CaMnO3high-temperature electrical propertyCe dopingco-precipitation method
《人工晶体学报》 2018 (3)
522-527,538,7
黔科合重大专项字(2013)6017贵州省研究生科研基金(KYJJ2017015)贵州省联合基金项目(黔科合LH字[2017] 7250号)贵州大学大学生SRT项目(贵大SRT字(2015)123号)贵州大学大学生创新创业训练计划项目(贵大(国)创字2017(015))
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