Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5145132 | International Journal of Hydrogen Energy | 2017 | 5 Pages |
Abstract
Solid oxide fuel cells (SOFCs) have attracted tremendous attention for their combination of environmental power generation and fuel flexibility. Proton conducting SOFCs (P-SOFCs) demonstrate advantages over oxygen-ion conducting SOFCs, such as less activation energies on ionic transport and higher fuel utilization efficiency. Central to the devices is a suitable cathode with high catalytic activity. Herein, a cubic perovskite BaCo0.7Fe0.22Sc0.08O3âδ (BCFSc) has been applied as the cathode in proton-conducting solid state fuel cell (SOFC) with BaZr0.1Ce0.7Y0.2O3âδ (BZCY) electrolyte. Peak power densities of 760, 591, 452 and 318 mW cmâ2 are obtained at 650, 600, 550 and 500 °C with humidified hydrogen as the fuel and air as the oxidant. A low polarization resistance of 0.05 Ω cm2 under open circuit at 650 °C is observed.
Related Topics
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Authors
Wei He, Rong-hua Yuan, Fei-fei Dong, Xue-lian Wu, Meng Ni,