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论文类型：期刊论文

发表时间：2015-01-01

发表刊物：APPLIED SURFACE SCIENCE

收录刊物：SCIE、EI

卷号：324

页面范围：349-354

ISSN号：0169-4332

关键字：Supercapacitor; Carbon nanocoils; Composite electrode; Manganese dioxide

摘要：A facile and efficient hydrothermal approach has been developed to synthesize three dimensional hybrid of manganese dioxide (MnO2) and carbon nanocoils (CNCs) as a kind of electrode materials for supercapacitors. This hybrid is prepared by anchoring uniformly porous MnO2 nanowiskers over the surface of CNCs. The electrochemical properties of CNC-MnO2 electrode have been measured by a three electrode configuration, which exhibits high specific capacitance with values up to 387 F/g at a scan rate of 10 mV/s and good cycling stability. These results suggest that the CNC-MnO2 hybrid is comparable or superior to other carbon-based materials coated with MnO2 nanowiskers. (C) 2014 Elsevier B.V. All rights reserved.