期刊
SCRIPTA MATERIALIA
卷 61, 期 11, 页码 1079-1082出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2009.08.040
关键词
Manganese dioxide; Carbon nanotubes; Nanocomposites; Electrochemical supercapacitor
类别
资金
- Natural Sciences and Engineering Research Council of Canada
Electrodes for electrochemical supercapacitors were fabricated by cathodic electrodeposition of MnO2 on carbon nanotubes (CNTs), which were grown by chemical vapour deposition on stainless steel meshes. The MnO2-CNT nanocomposites were characterized by scanning electron microscopy, transmission electron microscopy, cyclic voltammetry and impedance spectroscopy. The electrodes showed excellent capacitive behaviour in the 0.5 M Na2SO4 electrolyte, with specific capacitance of 356 F g(-1) at a scan rate of 2 mV s(-1). (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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