High performance protonic ceramic membrane fuel cells (PCMFCs) with Ba0.5Sr0.5Zn0.2Fe0.8O3−δ perovskite cathode |
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| Authors: | Hanping Ding Bin Lin Xingqin Liu Guangyao Meng |
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| Institution: | aDepartment of Materials Science and Engineering, University of Science and Technology of China (USTC), No. 96 Jinzhai Road, Hefei 230026, PR China |
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| Abstract: | Protonic ceramic membrane fuel cells (PCMFCs) based on proton-conducting electrolytes have attracted much attention because of many advantages, such as low activation energy and high energy efficiency. BaZr0.1Ce0.7Y0.2O3−δ (BZCY7) electrolyte based PCMFCs with stable Ba0.5Sr0.5Zn0.2Fe0.8O3−δ (BSZF) perovskite cathode were investigated. Using thin membrane BZCY7 electrolyte (about 15 μm in thickness) synthesized by a modified Pechini method on NiO-BZCY7 anode support, PCMFCs were assembled and tested by selecting stable BSZF perovskite cathode. An open-circuit potential of 1.015 V, a maximum power density of 486 mW cm−2, and a low polarization resistance of the electrodes of 0.08 Ω cm2 was achieved at 700 °C. The results have indicated that BZCY7 proton-conducting electrolyte with BSZF cathode is a promising material system for the next generation solid oxide fuel cells. |
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| Keywords: | Solid oxide fuel cells BaZr0 1Ce0 7Y0 2O3− δ Ba0 5Sr0 5Zn0 2Fe0 8O3− δ Protonic ceramic membrane fuel cells Cathode |
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