Hybrid manganese oxide films for supercapacitor application prepared by sol-gel technique

Chin Yi Chen, Sheng Chang Wang, Yue Han Tien, Wen Ta Tsai, Chung Kwei Lin

研究成果: Article同行評審

29 引文 斯高帕斯(Scopus)


Hybrid films were prepared by adding various concentrations of meso-carbon microbeads (MCMB) during sol-gel processing of manganese oxide films. The heat-treated films were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). In addition, electrochemical performance of the MCMB-added Mn-oxide hybrid coatings was evaluated by cyclic voltammetry (CV) and compared with its unadded counterpart. Experimental results showed that Mn-oxide films exhibited a mixture of Mn2O3 and Mn3O4 phases. The higher the heat-treatment temperature, the more Mn2O3 can be observed. The specific capacitance of the unadded Mn-oxide electrodes is 209 F/g. Because the MCMB particles provide more interfacial surface area for electrochemical reactions, a significant improvement can be noticed by adding MCMB in Mn-oxide coatings. The 300 °C heat-treated hybrid Mn-oxide coating with a Mn/MCMB ratio of 10/1 exhibits the highest value of 350 F/g, showing a ~ 170% increase in specific capacitance.

頁(從 - 到)1557-1560
期刊Thin Solid Films
出版狀態Published - 2009 十二月 31

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 表面和介面
  • 表面、塗料和薄膜
  • 金屬和合金
  • 材料化學


深入研究「Hybrid manganese oxide films for supercapacitor application prepared by sol-gel technique」主題。共同形成了獨特的指紋。