Capacitance properties of ordered porous carbon materials prepared by a templating procedure |
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| Affiliation: | 1. Institut de Chimie des Surfaces et Interfaces (ICSI), CNRS, 15 rue Jean Starcky, B.P. 2488, 68057 Mulhouse, Cedex, France;2. Poznan University of Technology, ul. Piotrowo 3, 60-965 Poznan, Poland;3. Laboratoire de Matériaux Minéraux (LMM), Ecole Nationale Supérieure de Chimie de Mulhouse, Université de Haute Alsace, 3 rue Alfred Werner, 68093 Mulhouse, Cedex, France;4. Centre de Recherche sur la Matière Divisée, 1B rue de la Férollerie, 45071 Orléans, Cedex 2, France;1. ETH Zürich, Department of Social Sciences, Clausiusstrasse 50, 8092 Zürich, Switzerland;2. ETH Zurich, Department of Management, Technology and Economics, Scheuchzerstrasse 7, CH-8092 Zürich, Switzerland;3. Swiss Finance Institute, University of Geneva, 40 Blvd. du Pont d׳Arve, CH-1211 Geneva, Switzerland;1. Department of Banking and Finance, National Chiayi University, No. 580, Sinmin Rd., Chiayi City 60054, Taiwan;2. Department of Finance, National Yunlin University of Science & Technology, No. 123, University Rd., Section 3, Douliou City 64002, Taiwan;3. Department of Business Administration, National Chiayi University, No. 580, Sinmin Rd., Chiayi City 60054, Taiwan;1. College of Chemistry, Jilin University, Changchun, 130012, China;2. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China;3. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Liaoning Key Laboratory for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian, 116024, China;4. State Key Laboratory of Chemical Resource Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China;1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering Dalian University of Technology, Dalian 116024, PR China;2. Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams (Ministry of Education), School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, PR China;3. Govt. Emerson College Affiliated with Bahauddin Zakaryia University, Multan, Pakistan;4. Department of Environment and Energy, Sejong University, Seoul 05006, Republic of Korea;5. Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana 125001, India;6. Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea;1. Department of Physics, Center for Bio-Nanomaterials, Institute of Basic Science, Daegu University, Gyeongsan 712-714, Republic of Korea;2. Advanced Materials Division, Korea Research Institute of Chemical Technology, Daejeon 305-343, Republic of Korea |
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| Abstract: | The electrochemical performance of carbon materials with a highly ordered nanoporous structure is investigated in two-electrode supercapacitors. The materials were prepared by a templating procedure using a silica matrix (type MCM-48 or SBA-15) with an organized porosity in which carbon was inserted, either by chemical vapor decomposition of propylene or by impregnation with a sucrose solution followed by carbonisation. After the removal of silica, a micro-mesoporous carbon residue is recovered which displays an uniform pore size distribution. Such a well-defined nanostructure is interesting for a fundamental study of the double layer capacitance behavior. The performance of supercapacitors built with electrodes prepared from the templated carbon was tested in acidic, alkaline and organic electrolyte solutions. High values of capacitance in aqueous and organic media were obtained with a rectangular shape of the voltammograms over a wide range of scan rates indicating a quick charge propagation. Especially, the templated carbons prepared by the impregnation of sucrose in MCM-48 display high capacitance values due to the formation of an adequate micro-mesoporous network during their formation. A marked shift of capacitance drop at higher values of frequency is clearly observed for the materials rich in mesopores; the mesopores make easier the diffusion of the ions to the active surface. |
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