A study of ion charge transfer on electrochemical behaviors of poly(vinylidene fluoride)-derived carbon electrodes |
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| Institution: | 1. Korea CCS R&D Center, Korea Institute of Energy Research, 152 Gajeongro, Yuseoung-gu, Daejeon 305-343, South Korea;2. Department of Chemistry, Inha University, 100 Inharo, Nam-gu, Incheon 402-751, South Korea;1. Institute of Brain Science School of Medicine, National Yang-Ming University, Taipei, Taiwan;2. Division of Gastroenterology, Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan;3. Department of Neurology, Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan;4. Department of Anesthesia and Critical Care and Department of Biomedical Engineering, E-DA Hospital/I-Shou University, Kaohsiung, Taiwan;5. Department of Psychology, Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan;6. Department of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan;1. School of Physics & Materials Science, Shoolini University, India;2. School of Advance Chemical Sciences, Shoolini University, India;3. Department of Chemistry and Chemical Sciences, Central University of Dharamshala, India;4. School of Basic &Applied Sciences, Lingaya''s Vidyapeeth, India;1. Institute for Electronic Materials Technology, Wolczynska 133, 01-926 Warszawa, Poland;2. National Centre for Nuclear Research, A. Soltana 7, 05-400 Swierk/Otwock, Poland;3. Institute for Engineering of Polymer Materials & Dyes, Division of Elastomers & Rubber Technology, Harcerska 30, 05-820 Piastow, Poland;4. Technical University of Lodz, Institute of Polymer & Dye Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland;5. Institute of Ion Beam Physics and Materials Research, Helmholtz Zentrum Dresden Rossendorf, PO Box 51 01 19, D-01314 Dresden, Germany;1. The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi''an Jiaotong University, Xi''an, 710049, PR China;2. Bioinspired Engineering and Biomechanics Center (BEBC), Xi''an Jiaotong University, Xi''an, 710049, PR China;1. Institute of Physics and Technology, Ural Federal University, Ekaterinburg, 620002, Russia;2. Faculty of Physics, Moscow State University, Moscow, 119991, Russia;3. Institute of Metal Physics, Russian Academy of Sciences, Ekaterinburg, 620002, Russia;1. School of Materials Science and Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea;2. School of Industrial Technology Advances, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea |
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| Abstract: | In this work, porous carbon with a high specific surface area as electrode materials for supercapacitors are obtained by a carbonization process at various temperatures from 700 °C to 1000 °C without activation process using poly(vinylidene fluoride) (PVDF) as a carbon precursor. The electrochemical performance is characterized by cyclic voltammetry and galvanostatic charge–discharge cycling performance using two-electrode system in 6.0 M KOH as an aqueous electrolyte. The results indicate that carbonization temperature significantly affected the specific surface area and pore volume of the PVDF-derived carbons and their capacitive behavior. In particular, the electrochemical performance of the prepared PVDF-derived carbon is determined by both the electric double-layer capacitance and the pseudo-capacitance resulting from the residual surface functional groups on PVDF-derived carbons. |
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