Nanostructured MnO2:: Hydrothermal synthesis and electrochemical properties as a supercapacitor electrode material

被引:351
作者
Subramanian, V.
Zhu, Hongwei
Wei, Bingqing [1 ]
机构
[1] Louisiana State Univ, Dept Elect & Comp Engn, Baton Rouge, LA 70803 USA
[2] Louisiana State Univ, Ctr Computat & Technol, Baton Rouge, LA 70803 USA
基金
美国国家科学基金会;
关键词
MnO2; nanorods; hydrothermal; supercapacitor; redox; aqueous electrolyte;
D O I
10.1016/j.jpowsour.2006.04.012
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The structural, morphological and electrochemical properties of the hydrothermally prepared manganese oxide (MnO2) nanostructures are discussed in this paper. tnteresting nanostructures of MnO2, mixture of nanostructured surface with a distinct plate-like morphology and nanorods, have been prepared by employing hydrothermal synthesis under mild conditions. The specific surface area of the prepared material was 132 m(2) g(-1). Electrochemical properties of the synthesized nanostructured material were studied using galvanostatic cycling and cyclic voltammetry in a mild aqueous electrolyte that showed a high specific capacitance of 168 Fg(-1). In addition, the synthesized nanomaterial showed a good reversibility and cycling stability. (c) 2006 Elsevier B.V. All rights reserved.
引用
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页码:361 / 364
页数:4
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