固体氧化物燃料电池LnBaCo_2O_(5+δ)-La_(10)Si_6O_(27)复合阴极的制备  

Fabrication of LnBaCo_2O_(5+δ)-La_(10)Si_6O_(27) Composite Cathode for Solid Oxide Fuel Cells

作　　者：刘红芹[1] 周雅文[1] 张桂菊[1] 潘伟[2] 徐宝财[1] 

机构地区：[1]北京工商大学食品学院北京市食品风味化学重点实验室食品添加剂与配料北京工程研究中心,北京100048 [2]清华大学材料系新型陶瓷与精细工艺国家重点实验室,北京100084

出　　处：《精细化工》2012年第3期214-217,共4页Fine Chemicals

基　　金：国家自然科学基金(20976003;21176004);北京市属高校人才强教计划资助项目(PHR200906109)~~

摘　　要：为探索适于中温条件下使用的固体氧化物燃料电池的阴极材料,利用溶液浸渍法,制备了具有阴极与电解质一体化离子传导路径的LnBaCo2O5+δ-La10Si6O27(Ln=Gd,Sm,Nd)复合阴极。通过X射线衍射仪和扫描电子显微镜研究了阴极相结构、微观形貌。利用交流阻抗谱对电极的性能进行了研究。结果表明,SmBaCo2O5+δ-La10Si6O27复合阴极在空气中的界面极化电阻最小,700℃为0.518Ω.cm2。In order to explore the cathode material for the intermediate temperature solid oxide fuel cell,a novel LnBaCo2O5＋δ-Lal0Si6O27 composite cathode with continuous ion transportation from the cathode to the electrolyte was prepared by wet impregnation method. The phase composition and microstructure of the cathode were investigated by means of XRD and SEM. The impedance spectroscopy measurement shows that the area specific resistance of SmBaCo205 ＋8-Lal0Si6 027 composite cathode was optimum,which was 0. 518 Ω · cm^2 at 700 ℃ in air.

关 键 词：固体氧化物燃料电池 阴极 浸渍法 功能材料 

分 类 号：TM911.4[电气工程—电力电子与电力传动]