Activated carbon nanotubes/polyaniline composites as supercapacitor electrodes

作者：Lee Seul Yi; Kim Ji Il; Park Soo Jin^*

来源：Energy, 2014, 78: 298-303.

DOI：10.1016/j.energy.2014.10.011

• Activated multi-walled carbon nanotubes
• Supercapacitors
• Polyaniline
• Nanocomposites

Chemically A-MWCNT (activated multiwalled carbon nanotube)/PANI (polyaniline) composites produced via ultrasonic polymerization of an aniline monomer in the presence of A-MWCNTs were investigated as potential electrode materials for supercapacitors. These composites were compared to pristine MWCNTs and MWCNT/PANI composites. The influence of the pore structure, which developed because of the polymerization process, was investigated by measuring N-2 adsorption/desorption isotherms at 77 K. The electrochemical properties of the materials were determined by cyclic voltammetry and galvanostatic charge discharge cycling measurements in 1 M NaNO3 electrolyte solution, using a three-electrode system at room temperature. The results suggested that the pore structure of the A-MWCNTs could effectively promote the homogenous-dispersion of aniline and consequently result in excellent cycling performance. Furthermore, interaction between the pi-conjugated structure of carbon and the quinoid ring of the PANI matrix can lead to enhancement in the charge transfer process.

• 出版日期2014-12-15