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

研究成果: Article同行評審

20 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)1697-1703
頁數7
期刊Journal of Solid State Electrochemistry
14
發行號9
DOIs
出版狀態Published - 2010 9月 1

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 凝聚態物理學
  • 電化學
  • 電氣與電子工程

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