Preparation and characteristics of nanostructured MnO2/MWCNTs using microwave irradiation method

被引：25
作者：
Fan, Zhuangjun [1 ]
Qie, Zhongwei [1 ]
Wei, Tong [1 ]
Yan, Jun [1 ]
Wang, Shanshan [1 ]
机构：
[1] Harbin Engn Univ, Sch Chem Engn & Mat Sci, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Heilongjiang, Peoples R China
来源：
MATERIALS LETTERS | 2008年 / 62卷 / 19期
关键词：
carbon nanotubes; nanocomposites; electrochemical capacitor; microstructure;
D O I：
10.1016/j.matlet.2008.02.060
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ball-nanostructured MnO2/MWCNTs composite was successfully prepared by microwave irradiation. The surface morphology and structures of the composite were examined by scanning electron microscope and X-ray diffraction. Multi-walled carbon nanotubes play a role as sustainment to inhibit MnO2 nanoplates from collapsing into nanorods. The electrochemical studies indicated that the composite had ideal capacitive performance and high specific capacitances of 298 F g(-1), 213 F g(-1) and 198 F g-1 at the current density of 2 mA.cm(-2), 10 mA.cm(-2) and 20 mA.cm(-2), respectively. The formation mechanism of nanostructured MnO2/ MWCNTs and the electrochemical behaviour of composites were discussed in detail. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：3345 / 3348
页数：4
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