Synthesis and electrochemical characterization of polypyrrole/multi-walled carbon nanotube composite electrodes for supercapacitor applications

Santhosh Paul, Yoon Sung Lee, Ji Ae Choi, Yun Chan Kang, Dong Won Kim

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The nanocomposites of polypyrrole (PPy) and multi-walled carbon nanotube (MWCNT) with different composition are synthesized by the chemical oxidative polymerization method. In these composites, the MWCNTs are uniformly coated by PPy with different thickness. The electrochemical properties of the composite electrodes are investigated by cyclic voltammetry, galvanostatic charge-discharge cycling and electrochemical impedance spectroscopy. The full cells assembled with the PPy/MWCNT composite electrodes deliver initial specific capacitances ranging from 146.3 to 167.2 F/g at 0.5 mA/cm2 and exhibit stable cycling characteristics. The effect of content of MWCNT in the composite on cycling performance of the cells is also investigated.

Original languageEnglish
Pages (from-to)1228-1232
Number of pages5
JournalBulletin of the Korean Chemical Society
Volume31
Issue number5
DOIs
Publication statusPublished - 2010 May 20
Externally publishedYes

Keywords

  • Cycling performance
  • Multi-walled carbon nanotubes
  • Nanocomposite
  • Polypyrrole
  • Supercapacitor

ASJC Scopus subject areas

  • Chemistry(all)

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