摘要
通过甘氨酸-硝酸盐法制备出均质纳米粉体La0.6Sr0.4CoO3-δ(LSC),并采用TGA、XRD、BET和SEM等手段进行了表征;同时研究了600～800℃以LSC为阴极材料的单电池的输出性能。结果表明,产物在800℃时已形成钙钛矿相,且具有较高的比表面积,950℃为最佳烧结温度,可获得纳米级多孔显微结构,所得单电池输出性能显著提高;当电压为0.7V时,电池功率密度增幅随温度增加非常明显。
The uniform nanopowders of La0.6Sr0.4CoO3-δ（LSC） were synthesized by glycine-nitrate process and the powders obtained were characterized by TGA,XRD,BET and SEM.Meanwhile,the single cell performance of SOFC based on LSC as cathode was tested from 600 to 800℃.The results showed that perovskite phase could form after heat treatment of the cathode at 800℃ for 2h,and the powders acquired exhibited high specific surface area.Moreover,uniform and porous structure of cathode layers can be obtained by sintering at 950℃ and the single cell with LSC exhibits good electrochemical performance.Furthermore,I-V-P curve analysis revealed that the power density increased obviously with temperature at cell voltage of 0.7V.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2010年第3期397-400,共4页
Journal of Functional Materials
基金
欧盟第六框架计划资助项目(020089)
