Intriguing electrochemistry in low-temperature single layer ceramic fuel cells based on CuFe2O4 |
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| Affiliation: | 1. New Energy Technologies Group, Department of Applied Physics, Aalto University School of Science, FI-00076, Aalto, Finland;2. Faculty of Physics and Electronic Science, Hubei University, Wuhan, 430062, PR China;1. Functional Materials Laboratory, College of Materials Science and Engineering, Xi''an University of Architecture and Technology, Xi''an, 710055, China;2. Department of Metallurgy & Materials Engineering, Dawood University of Engineering and Technology, Karachi, 74800, Sindh, Pakistan;1. Department of Electronic Engineering, Nanjing Vocational Institute of Mechatronic Technology, Nanjing, 211135, PR China;2. School of Electronic Engineering, Nanjing Xiaozhuang University, Nanjing, 211171, China;3. Department of Electrical and Automation, Shandong Labor Vocational and Technical College, Jinan, 250022, China;4. Nanjing SolarU Energy Saving Technology Co., Ltd., Nanjing, 210028, PR China;5. Faculty of Physics and Electronic Science, Hubei University, Wuhan, 430062, PR China;1. Collaborative Innovation Center for Advanced Steels, Wuhan University of Science and Technology, Wuhan 430081, China;2. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China;1. New Energy Technologies Group, Department of Applied Physics, Aalto University School of Science, P. O. Box 15100, FI-00076 Aalto, Espoo, Finland;2. Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei, 430062, China;1. COMSATS University Islamabad, Lahore Campus, Defence Road Off Raiwind Road, Lahore, 54000, Pakistan;2. New Energy Technologies, Department of Physics, Aalto University, P.O. Box 15100, FIN-00076, Aalto, Finland;3. Chalmers University of Technology, Gothenburg, Sweden |
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| Abstract: | A composite of CuFe2O4 and Gd-Sm co-doped CeO2 is studied for a single layer ceramic fuel cell application. In order to optimize the cell performance, the effects of sintering temperatures (600 °C, 700 °C, 800 °C, 900 °C and 1000 °C) were investigated for the fabrication of the cells. It was found that the cells sintered at 700 °C outperformed other cells with a maximum peak power density of 344 mW/cm2 at 550 °C. The electrochemical impedance spectroscopy analysis on the best cell revealed significant ohmic losses (0.399 Ω cm2) and polarization losses (0.174 Ω cm2) in the cell. The HR-TEM and SEM gave microstructural information of the cell. The HT-XRD spectra showed the crystal structures in different sintering temperatures. The cell performance was stable and the composite material did not degrade during an 8 h stability test under open-circuit condition. This study opens up new avenues for the exploration of this nanocomposite material for the low temperature single component ceramic fuel cell research. |
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| Keywords: | Catalysis Ceramic Composite Fuel cell Single component |
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