Processing of high-performance Co doped Y2O3 as a single-phase electrolyte for low temperature solid oxide fuel cell (LT-SOFC) |
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| Affiliation: | 1. Department of Electronic Engineering, Huainan Union University, Huainan, PR China;2. Energy Storage Joint Research Center, School of Energy and Environment, Southeast University, No. 2 Si Pai Lou, Nanjing, 210096, PR China;3. Key Laboratory of Ferro and Piezoelectric Materials and Devices of Hubei Province, Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei, 430062, PR China;4. Shenzhen Key Laboratory of Laser Engineering, Guangdong Provincial Key Laboratory of Micro/Nano Optomechatronics Engineering, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, PR China;5. School of Electronic Engineering, Nanjing Xiaozhuang University, Nanjing, 211171, PR China;6. Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan;1. Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia;2. Nanomaterials and Nanotechnology Department, Advanced Materials Institute, Central Metallurgical R&D Institute (CMRDI), P.O. Box 87 Helwan, 11421, Cairo, Egypt;1. School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China;2. State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, 621010, China;1. School of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China;2. Institute of Additive Manufacturing (3D Printing), Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China;3. School of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing, 210000, China;4. School of Mechanical Engineering, Southeast University, Nanjing, 211189, China;5. Prismlab China Ltd., 200000, Shanghai, China;1. School of Materials Science and Engineering, Northwestern Polytechnical University, Xi''an, 710072, PR China;2. Xi''an Xinyao Ceramic Composite Materials Co., Ltd., Xi''an, 710117, PR China;3. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, No.29 Jiangjun Ave., Nanjing, 211106, PR China;1. School of Mechanical Engineering, Sichuan University, Chengdu, 610065, PR China;2. Sichuan SUC Flow Control Equipment Co.,Ltd, Chengdu, 610207, PR China;3. Chengdu Met-Ceramic Advanced Materials Co.,Ltd, Chengdu, 610100, PR China |
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| Abstract: | The high-performance single-phase semiconductor materials with higher ionic conductivity have drawn substantial attention in fuel cell applications. Semiconductor materials play a key role to enhance ionic conductivity subsequently promoting low temperature solid oxide fuel cell (LT-SOFC) research. Herein, we proposed a semiconductor Co doped Y2O3 (YCO) samples with different molar ratios, which may easily access the high ionic conductivity and electrochemical performances at low operating temperatures. The resulting fabricated fuel cell 10% Co doped Y2O3 (YCO-10) device exhibits high ionic conductivity of ～0.16 S cm?1 and a feasible peak power density of 856 mW cm?2 along with 1.09 OCV at 530 °C under H2/air conditions. The electrochemical impedance spectroscopy (EIS) reveals that YCO-10 electrolyte based SOFC device delivers the least ohmic resistance of 0.11–0.16 Ω cm2 at 530-450 °C. Electrode polarization resistance of the constructed fuel cell device noticed from 0.59 Ω cm2 to 0.28 Ω cm2 in H2/air environment at different elevated temperatures (450 °C to 530 °C). This work suggests that YCO-10 can be a promising alternative electrolyte, owing to its high fuel cell performance and enhanced ionic conductivity for LT-SOFC. |
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| Keywords: | Semiconductor materials Ionic conductivity Spectroscopic analysis LT-SOFC |
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