https://scholars.lib.ntu.edu.tw/handle/123456789/407397
標題: | Effects of reducing agents on the electrochemical properties of the prepared manganese oxide powders | 作者: | Wu C.-H. Ma J.-S. Lu C.-H. |
關鍵字: | Capacitance;Manganese oxide;Redox reaction | 公開日期: | 2012 | 卷: | 12 | 期: | 4 | 起(迄)頁: | 1058-1063 | 來源出版物: | Current Applied Physics | 摘要: | Manganese oxide powders with high specific capacitance were successfully fabricated via a simple redox reaction at room temperature. The reducing agents used for the redox reaction significantly affected the oxidation states and the electrochemical properties of the prepared manganese oxide powders. As C 2H 5OH was used as the reducing agent, high Mn 3 content and high amount of hydroxide were observed in the prepared manganese oxide powders. In addition, the molar ratios of KMnO 4 and C 2H 5OH also influenced the electrochemical properties of the prepared manganese oxide powders. When the molar ratio of KMnO 4 and C 2H 5OH was 1:40, the specific capacitance of the prepared manganese oxide was as high as 402 F/g. These results of the electrochemical analysis showed that, adjusting the molar ratios of KMnO 4 and C 2H 5OH demonstrated to be an effective method for controlling the electrochemical characteristics of manganese oxide powders. ? 2011 Elsevier B.V. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/407397 | ISSN: | 15671739 | DOI: | 10.1016/j.cap.2012.01.007 |
顯示於: | 化學工程學系 |
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