Journal of Electrochemical Science and Technology

The Korean Electrochemical Society (한국전기화학회)
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Composite Materials with MWCNTs and Conducting Polymer Nanorods and their Application as Supercapacitors

  • Liua, Lichun (Department of Chemistry, Sungkyunkwan University) ;
  • Yoo, Sang-Hoon (Department of Energy Science, Sungkyunkwan University) ;
  • Park, Sung-Ho (SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University)
  • Received : 2010.08.26
  • Accepted : 2010.09.28
  • Published : 2010.09.30
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Abstract

This study demonstrated the synthesis of high-surface-area metal-free carbonaceous electrodes (CE) from anodic aluminum oxide (AAO) templates, and their application as supercapacitors. Multi-walled Carbon nanotubes (MWCNTs) were interwoven into a porous network sheet that was attached to one side of AAO template through a vacuum filtration of the homogeneously dispersed MWCNT toluene solution. Subsequently, the conducting polymer was electrochemically grown into the porous MWCNT network and nanochannels of AAO, leading to the formation of a carbonaceous metal-free film electrode with a high surface area in the given geometrical surface area. Typical conducting polymers such as polypyrrole (PPY) and poly(3,4-ethylenedioxythiophene) (PEDOT) were examined as model systems, and the resulting electrodes were investigated as supercapacitors (SCs). These SCs exhibited stable, high capacitances, with values as high as 554 F/g, 1.08 F/$cm^2$ for PPY and 237 F/g, 0.98 F/$cm^2$ for PEDOT, that were normalized by both the mass and geometric area.

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