A novel BaCe0.5Fe0.3Bi0.2O3-delta perovskite-type cathode for proton-conducting solid oxide fuel cells

作者：Shan, Duo; Gong, Zheng; Wu, Yusen; Miao, Lina; Dong, Kuan; Liu, Wei^*

来源：Ceramics International, 2017, 43(4): 3660-3663.

DOI：10.1016/j.ceramint.2016.11.206

• Proton-conducting SOFCs
• Doped barium cerate
• Solid oxide fuel cells
• Perovskite structure

A perovskite-type BaCe0.5Fe0.3Bi0.2O3-(delta) (BCFB) was employed as a novel cathode material for proton conducting solid oxide fuel cells (SOFCs). The single cells with the structure of NiO-BaZr0.1Ce0.7Y0.2O3-delta (BZCY7) anode substrate vertical bar NiO-BZCY7 anode functional layer vertical bar BZCY7 electrolyte membrane I BCFB cathode layer were fabricated by a dry-pressing method and investigated from 550 to 700 degrees C with humidified hydrogen (similar to 3% H2O) as the fuel and the static air as the oxidant. The low interfacial polarization resistance of 0.098 Omega cm(2) and the maximum power density of 736 mW cm(-2) are achieved at 700 degrees C. The excellent electrochemical performance indicates that BCFB may be a promising cathode material for proton-conducting SOFCs.

• 出版日期2017-3
• 单位中国科学院; 中国科学技术大学