A cobalt-free Sm_0.5Sr_0.5FeO_{3鈭?span style='font-style: italic'>未}-BaZr_0.1Ce_0.7Y_0.2O_{3鈭?span style='font-style: italic'>未} composite cathode for proton-conducting solid oxide fu

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• 作者：Xiaoyong Lu ; Yonghong Chen ; Yanzhi Ding ; ^{yzhidd@163.com} ; Bin Lin ; ^{bin@mail.ustc.edu.cn}
• 关键词：Cobalt-free ; Composite cathode ; Proton-conducting solid oxide fuel cells ; Electrode polarization resistance
• 刊名：International Journal of Hydrogen Energy
• 出版年：2012
• 期刊代码：42_03603199
• 类别：ch
• 出版时间：May, 2012
• 卷：37
• 期：10
• 页码：8630-8634
• 文件大小：606 K

摘要

A cobalt-free Sm_0.5Sr_0.5FeO_3鈭?em>未-BaZr_0.1Ce_0.7Y_0.2O_3鈭?em>未 (SSF-BZCY) was developed as a composite cathode material for proton-conducting solid oxide fuel cells (H-SOFC) based on proton-conducting electrolyte of stable BZCY. The button cells of Ni-BZCY/BZCY/SSF-BZCY were fabricated and tested from 550 to 700聽掳C with humidified H₂ (锝?%H₂O) as a fuel and ambient oxygen as oxidant. An open-circuit potential of 1.024聽V, maximum power density of 341聽mW聽cm^鈭?, and a low electrode polarization resistance of 0.1聽惟聽cm² were achieved at 700聽掳C. The experimental results indicated that the SSF-BZCY composite cathode is a good candidate for cathode material.