Electrochemical and capacitive properties of polyaniline-implanted porous carbon electrode for supercapacitors

Wei Chih Chen, Ten Chin Wen

Research output: Contribution to journalArticle

147 Citations (Scopus)

Abstract

Composite electrodes for supercapacitors were prepared by electropolymerization of polyaniline (PANI) on the surface of activated-porous carbons. The surface morphology and the chemical composition of composite electrodes were characterized by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The electrochemical properties of electrodes and the capacitive behavior of the resulting capacitors were systematically studied using cyclic voltammetry (CV), ac impedance and constant current charge-discharge tests. The specific capacitance of PANI-carbon composite electrode was exhibited as high as 160F/g, in comparison with a value of 95F/g for the bare-carbon (BC) electrode. An increase in capacitance more than 60% has been achieved, that identifies the significant contribution of pseudocapacitance from PANI on the overall capacitance.

Original languageEnglish
Pages (from-to)273-282
Number of pages10
JournalJournal of Power Sources
Volume117
Issue number1-2
DOIs
Publication statusPublished - 2003 May 15

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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