Polymer-assistant ceramic nanocomposite materials for advanced fuel cell technologies |
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| Affiliation: | 1. Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei 430062, China;2. Department of Energy Technology, Royal Institute of Technology, Stockholm, SE 10044, Sweden;3. Nanjing Yunna Nanotech Ltd., Heyan Road 271, Nanjing 210037, China;4. Department of Materials, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK;1. Beijing General Research Institute of Mining and Metallurgy, Beijing 100160, China;2. Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory of Ferro & Piezoelectric Materials and Devices of Hubei Province, Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei 430062, China;1. Faculty of Materials Science and Chemistry, China University of Geosciences (Wuhan), Wuhan, PR China;2. Hubei Collaborative Innovation Center for Advanced Organic Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, PR China;1. Key Laboratory of Applied Chemistry, Department of Environmental and Chemical Engineering, Yanshan University, No. 438 Hebei Street, Qinhuangdao 066004, PR China;2. Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei 430062, PR China;3. Department of Energy Technology, Royal Institute of Technology (KTH), S-10044 Stockholm, Sweden;4. State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China;1. Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei 430062, China;2. Department of Energy Technology, Royal Institute of Technology, Stockholm, SE-10044, Sweden;3. Key Laboratory of Applied Chemistry, Department of Environmental and Chemical, Engineering, Yanshan University, No. 438 Hebei Street, Qinhuangdao 066004, Hebei Province, China;1. Hubei Collaborative Innovation Center for Advanced Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei 430062, PR China;2. Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials, College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen, Guangdong 518060, PR China;3. Department of Energy Technology, Royal Institute of Technology, Stockholm, SE-10044, Sweden;4. Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan;5. Chemistry Division, Directorate of Science, Pakistan Institute of Nuclear Science and Technology (PINSTECH), P.O. Nilore, Islamabad, 45650, Pakistan;1. Department of Energy Technology, KTH Royal Institute of Technology, SE-10044, Stockholm, Sweden;2. Hubei Collaborative Innovation Center for Advanced Materials, Faculty of Physics and Electronic Technology, Hubei University, Wuhan, Hubei, 430062, China;3. Department of Applied Physics, Aalto University, FI-00076, Aalto, Espoo, Finland;4. Department of Engineering Sciences, Ångström Laboratory, Uppsala University, Uppsala, Sweden;5. Nanjing Yunna Nanotech Lth., Heyan Road 271, Nanjing, 210037, China |
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| Abstract: | In this study，nanocomposites of LaCePr-oxide (LCP) and Ni0.8Co0.15Al0.05LiO2-δ (NCAL) with different contents of polyvinylidene fluoride (PVDF) were prepared and applied to solid oxide fuel cells. The composite materials were characterized by X-ray diffraction analysis (XRD), scanning electron microscope (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and electrochemical impedance spectrum (EIS). The effect of PVDF concentration on the conductivity and performance of the fuel cells was investigated. It was found that PVDF plays a template role of pore forming in the nanocomposites, and the changed microstructure by as-formed pores greatly influences the electrochemical property of the nanocomposites. The cell with 3 wt% PVDF heat-treated at 210 °C achieved the highest power density of 982 mW cm?2 at 520 °C, which enhanced performance by more than 57% than when no heat-treatment was implemented. It is 66% higher than the cell with no PVDF and no heat-treatment. Pores formed by PVDF after heat-treatment enlarged the triple phase boundary (TPB), which results in improved fuel cell performance. |
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| Keywords: | Microstructure Polymer-assistant ceramic nanocomposite Fuel cells Electrochemical performance |
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