Studies on preparation and performances of carbon aerogel electrodes for the application of supercapacitor |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Xiangtan University, Hunan 411105, China;2. Solar-Hydrogen-Fuel Cell Group, CIE-UNAM, Temixco 62580, Morelos, Mexico;1. School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Shinlim-dong, Kwanak-ku, Seoul 151-744, Republic of Korea;2. Samwha Capacitor Co., Ltd., Yongin 449-884, Republic of Korea;3. Hanwha Chemical Corp., Daejeon 305-804, Republic of Korea;1. School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Shinlim-dong, Kwanak-ku, Seoul 151-744, South Korea;2. Department of Environmental Engineering and Energy, Myongji University, Gyeonggi-do 449-728, South Korea;1. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, PR China;2. School of Materials Science and Engineering, Georgia Tech, Atlanta, GA 30032, USA;3. Department of Physics and Astronomy, Green State University, Bowling Green, OH 43403, USA;4. Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100864, PR China;5. Division of Advanced Materials, High Technology R&D Center, Ministry of Science & Technology, Beijing 100044, PR China;1. Karabuk University, Faculty of Engineering, Department of Electrical-Electronics Engineering, 78050, Karabük, Turkey;2. Erciyes University, Education Faculty, 38039, Kayseri, Turkey;3. Erciyes Teknopark, Building Number 1, No. 41, 38039, Kayseri, Turkey;4. Akdeniz University, Department of Medical Imaging Techniques, 07058, Antalya, Turkey;5. Akdeniz University, Department of Electricity and Energy, 07058, Antalya, Turkey;1. College of Material Science and Engineering, Northeast Forestry University, Harbin, PR China;2. ResearchCenter of Wood Intelligent Science, Northeast Forestry University, Harbin, PR China |
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| Abstract: | Carbon aerogel was prepared by the polycondensation of resorcinol (R) with formaldehyde (F), and sodium carbonate was added as a catalyst (C). Physical properties of carbon aerogel were characterized by infrared spectrometer (IR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). It is found that carbon aerogel is an amorphous material with a pearly network structure, and it consists of one or two diffuse X-ray peaks. The results of cyclic voltammetry indicated that the specific capacitance of a carbon aerogel electrode in 6 M KOH electrolyte was approximately 110.06 F g?1. Through the galvanostatic charge/discharge measurement, it was found that the electrode is stable in KOH electrolyte, the maximum capacitance of the supercapacitor with carbon aerogel as the electrode active material was 28 F g?1. Besides, the supercapacitor has long cycle life. Thus, it was thought that the carbon aerogel is an excellent electrode material for a supercapcitor. |
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