Direct growth of vertically aligned single-walled CNTs on conducting substrate and its electrochemical performance in ionic liquids

Mohd Abid, Mohd Asyadi Azam and Isomura , Kazuki and Fujiwara, Akihiko and Shimoda, Tatsuya (2013) Direct growth of vertically aligned single-walled CNTs on conducting substrate and its electrochemical performance in ionic liquids. In: International Symposium on Advanced Materials Science, 17 - 18 October 2013, JAIST, Ishikawa, Japan.

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Abstract

We report fabrication of vertically-aligned single-walled carbon nanotube (VA-SWCNT) electrodes for a symmetric electrochemical capacitor using a simple ethanol-based CNT growth system. From the CNT direct growth technique, the electrode was easily prepared, and consequently assembled with ionic liquid as electrolyte. VA-SWCNTs were directly grown on conducting SUS 310S foils in which the binder material was not incorporated in the capacitor structure. This capacitor demonstrated excellent gravimetric capacitance and a high rate capability. From the cyclic voltammetric analysis, the capacitance was contributed not only from the ideal double layer capacitance, but also from faradaic processes that might have occurred during charge-discharge. Other than the capacitance, the VA-SWCNT capacitor was also measured by using frequency response (impedance) and charge-discharge analyses.

Item Type:	Conference or Workshop Item (Lecture)
Subjects:	Q Science > QD Chemistry Q Science > QC Physics
Divisions:	Faculty of Manufacturing Engineering > Department of Engineering Materials
Depositing User:	Dr Mohd Asyadi 'Azam Bin Mohd Abid
Date Deposited:	13 Dec 2013 08:55
Last Modified:	28 May 2015 04:10
URI:	http://eprints.utem.edu.my/id/eprint/10261
Statistic Details:	View Download Statistic

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