Dependence on the electrolyte solution of the capacitance of active carbon fiber electrode for electric double layer capacitor

Research output: Contribution to journalArticle

Abstract

Double layer capacitance of phenoric-resin based active carbon fiber (ACF) electrode was enhanced by a method of electrochemical treatment in various acidic electrolytes. Oxidic acids, especially perchloric acid solution, showed higher enhancement of the ACF capacitance by the electrochemical treatment. Thus, the capacitor was constructed with using 1.0 mol dm-3 HClO4 electrolyte solution and ACF electrode oxidized at 1.0 V vs. SCE for 1 h. The capacitor gives charging-discharging characteristics better than that of H2SO4 electrolyte system.

Original languageEnglish
Pages (from-to)831-835
Number of pages5
JournalElectrochemistry
Volume64
Issue number7
Publication statusPublished - 1996
Externally publishedYes

Keywords

  • Active carbon fiber
  • Electric double layer capacitor
  • Electrochemical treatment
  • Perchloric acid

ASJC Scopus subject areas

  • Electrochemistry

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