Carbon-Based Fibrous EDLC Capacitors and Supercapacitors
This paper investigates electrochemical double-layer capacitors (EDLCs) including two alternative types of carbon-based fibrous electrodes, a carbon fibre woven fabric (CWF) and a multiwall carbon nanotube (CNT) electrode, as well as hybrid CWF-CNT electrodes. Two types of separator membranes were a...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2011/409382 |
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| author | C. Lekakou O. Moudam F. Markoulidis T. Andrews J. F. Watts G. T. Reed |
| author_facet | C. Lekakou O. Moudam F. Markoulidis T. Andrews J. F. Watts G. T. Reed |
| author_sort | C. Lekakou |
| collection | DOAJ |
| description | This paper investigates electrochemical double-layer capacitors (EDLCs) including two alternative types of carbon-based fibrous electrodes, a carbon fibre woven fabric (CWF) and a multiwall carbon nanotube (CNT) electrode, as well as hybrid CWF-CNT electrodes. Two types of separator membranes were also considered. An organic gel electrolyte PEO-LiCIO4-EC-THF was used to maintain a high working voltage. The capacitor cells were tested in cyclic voltammetry, charge-discharge, and impedance tests. The best separator was a glass fibre-fine pore filter. The carbon woven fabric electrode and the corresponding supercapacitor exhibited superior performance per unit area, whereas the multiwall carbon nanotube electrode and corresponding supercapacitor demonstrated excellent specific properties. The hybrid CWF-CNT electrodes did not show a combined improved performance due to the lack of carbon nanotube penetration into the carbon fibre fabric. |
| format | Article |
| id | doaj-art-7c55393f3b524073b501ff8714f11b38 |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-7c55393f3b524073b501ff8714f11b382025-02-03T05:45:26ZengWileyJournal of Nanotechnology1687-95031687-95112011-01-01201110.1155/2011/409382409382Carbon-Based Fibrous EDLC Capacitors and SupercapacitorsC. Lekakou0O. Moudam1F. Markoulidis2T. Andrews3J. F. Watts4G. T. Reed5Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UKFaculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UKFaculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UKFaculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UKFaculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UKFaculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, UKThis paper investigates electrochemical double-layer capacitors (EDLCs) including two alternative types of carbon-based fibrous electrodes, a carbon fibre woven fabric (CWF) and a multiwall carbon nanotube (CNT) electrode, as well as hybrid CWF-CNT electrodes. Two types of separator membranes were also considered. An organic gel electrolyte PEO-LiCIO4-EC-THF was used to maintain a high working voltage. The capacitor cells were tested in cyclic voltammetry, charge-discharge, and impedance tests. The best separator was a glass fibre-fine pore filter. The carbon woven fabric electrode and the corresponding supercapacitor exhibited superior performance per unit area, whereas the multiwall carbon nanotube electrode and corresponding supercapacitor demonstrated excellent specific properties. The hybrid CWF-CNT electrodes did not show a combined improved performance due to the lack of carbon nanotube penetration into the carbon fibre fabric.http://dx.doi.org/10.1155/2011/409382 |
| spellingShingle | C. Lekakou O. Moudam F. Markoulidis T. Andrews J. F. Watts G. T. Reed Carbon-Based Fibrous EDLC Capacitors and Supercapacitors Journal of Nanotechnology |
| title | Carbon-Based Fibrous EDLC Capacitors and Supercapacitors |
| title_full | Carbon-Based Fibrous EDLC Capacitors and Supercapacitors |
| title_fullStr | Carbon-Based Fibrous EDLC Capacitors and Supercapacitors |
| title_full_unstemmed | Carbon-Based Fibrous EDLC Capacitors and Supercapacitors |
| title_short | Carbon-Based Fibrous EDLC Capacitors and Supercapacitors |
| title_sort | carbon based fibrous edlc capacitors and supercapacitors |
| url | http://dx.doi.org/10.1155/2011/409382 |
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