Manganese oxide thin films prepared by potentiodynamic electrodeposition and their supercapacitor performance

Ming Tsung Lee, Jeng Kuei Chang, Yao Tsung Hsieh, Wen Ta Tsai, Chung Kwei Lin

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Manganese oxide film for supercapacitor applications was prepared by potentiodynamic electrodeposition in a manganese acetate plating solution. The effects of the potential sweep rate on the oxide microstructure, crystallinity, and chemical states were examined using a scanning electron microscope, an X-ray diffractometer, and an X-ray photoelectron spectrometer, respectively. Electrochemical performance of the film electrodes was evaluated using a cyclic voltammetric measurement. The experimental results indicate that the deposition potential sweep rate significantly affected the material properties of the prepared oxide films. The oxide-specific capacitance increased from 262 to 337 F/g when the sweep rate was increased from 100 to 400 mV/s. The key material factors that govern the specific capacitance and cyclic stability of the oxide electrodes were discussed.

Original languageEnglish
Pages (from-to)1697-1703
Number of pages7
JournalJournal of Solid State Electrochemistry
Volume14
Issue number9
DOIs
Publication statusPublished - Sep 2010
Externally publishedYes

Fingerprint

Manganese oxide
manganese oxides
electrochemical capacitors
Electrodeposition
electrodeposition
Oxides
Oxide films
Thin films
oxides
oxide films
Capacitance
thin films
capacitance
X rays
Electrodes
electrodes
Diffractometers
Manganese
Photoelectrons
diffractometers

Keywords

  • Manganese oxide
  • Potentiodynamic electrodeposition
  • Supercapacitor performance

ASJC Scopus subject areas

  • Electrochemistry
  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Materials Science(all)

Cite this

Manganese oxide thin films prepared by potentiodynamic electrodeposition and their supercapacitor performance. / Lee, Ming Tsung; Chang, Jeng Kuei; Hsieh, Yao Tsung; Tsai, Wen Ta; Lin, Chung Kwei.

In: Journal of Solid State Electrochemistry, Vol. 14, No. 9, 09.2010, p. 1697-1703.

Research output: Contribution to journalArticle

Lee, Ming Tsung ; Chang, Jeng Kuei ; Hsieh, Yao Tsung ; Tsai, Wen Ta ; Lin, Chung Kwei. / Manganese oxide thin films prepared by potentiodynamic electrodeposition and their supercapacitor performance. In: Journal of Solid State Electrochemistry. 2010 ; Vol. 14, No. 9. pp. 1697-1703.
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