Title: Longitudinally unzipped carbon nanotubes for supercapacitors

Authors: Young Soo Yun; Hyoung-Joon Jin

Addresses: Department of Polymer Science and Engineering, Inha University, 402-751 Incheon, Korea ' Department of Polymer Science and Engineering, Inha University, 402-751 Incheon, Korea

Abstract: In this study, longitudinally unzipped carbon nanotubes (L-UCNTs) prepared from multiwalled carbon nanotubes and their electrochemical properties for supercapacitors were investigated after thermal treatment. Thermally treated L-UCNTs (RL-UCNTs) had a specific surface area of 288 m²/g and mesoporous pore characteristics. Also, RL-UCNTs had numerous oxygen heteroatoms, which affected electrochemical performances of RL-UCNTs. RL-UCNTs exhibited a specific capacitance of 106 F/g and cycle stabilities over 5000 repetitive cycles.

Keywords: unzipped carbon nanotubes; CNTs; electrodes; supercapacitors; nanoribbons; transmission microscopy; X-ray photoelectron spectroscopy; nitrogen adsorption; nitrogen desorption; nanotechnology; multiwalled carbon nanotubes; MWCNTs; electrochemical properties; mesoporous.

DOI: 10.1504/IJNT.2014.060562

International Journal of Nanotechnology, 2014 Vol.11 No.5/6/7/8, pp.434 - 440

Published online: 15 Dec 2014 *

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