Rational synthesis of α-MnO₂ and γ-Mn₂O₃ nanowires with the electrochemical characterization of α-MnO₂ nanowires for supercapacitor

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• 作者：Xiangying Chen ; Xiaoxuan Li ; Ying Jiang ; Chengwu Shi and Xueliang Li
• 关键词：A. Nanostructures ; B. Chemical synthesis ; C. Transmission electron microscopy
• 刊名：Solid State Communications
• 出版年：2005
• 期刊代码：101_00381098
• 类别：ms
• 出版时间：2005
• 卷：136
• 期：2
• 页码：94-96
• 文件大小：216 K

摘要

An acidification-hydrothermal method was developed to synthesize α-MnO₂ nanowires, which was subsequently treated with ethanol, resulting in γ-Mn₂O₃ nanowire bundles on a large scale. The electrochemical characterization was carried out by cyclic voltammetry, which indicated that the α-MnO₂ nanowires in 0.5 mol L⁻¹ Na₂SO₄ aqueous electrolyte was of an excellent electrode material for supercapacitor at the scan rate of 10 mV S⁻¹ in the range of 0.0–0.85 V.