|Title:||Effects of reducing agents on the electrochemical properties of the prepared manganese oxide powders||Authors:||Wu C.-H.
|Keywords:||Capacitance;Manganese oxide;Redox reaction||Issue Date:||2012||Journal Volume:||12||Journal Issue:||4||Start page/Pages:||1058-1063||Source:||Current Applied Physics||Abstract:||
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.
|Appears in Collections:||化學工程學系|
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