Manganese oxide/carbon composite electrodes for electrochemical capacitors

Jeng-Kuei Chang, Chung Ta Lin, Wen Ta Tsai*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

148 Scopus citations


Multi-layer and co-deposition composite electrodes were prepared by introducing the carbon powders into the anodically deposited hydrous manganese oxide. The surface morphology and crystal structure of the electrodes were examined by scanning electron microscope and glancing angle X-ray diffraction. Cyclic voltammetrty and chronopotentiometry were also performed to evaluate the electrochemical characteristics of the electrodes prepared. These composite electrodes with rough surface, consisted of amorphous hydrous manganese oxide and carbon powder, were confirmed to possess the ideal capacitive property. The specific capacitance, high power capability and cyclic stability of the hydrous manganese oxide/carbon composite electrodes were superior to that of the plain hydrous manganese oxide electrode.

Original languageEnglish
Pages (from-to)666-671
Number of pages6
JournalElectrochemistry Communications
Issue number7
StatePublished - 1 Jul 2004


  • Anodic deposition
  • Composite electrode
  • Manganese oxide
  • Pseudo-capacitance
  • Super-capacitor


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