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
Longitudinally unzipped carbon nanotubes for supercapacitors
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.