Inderscience Publishers

Longitudinally unzipped carbon nanotubes for supercapacitors

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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

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