Nickel/carbon nanofibers composite electrodes as supercapacitors prepared by electrospinning

被引：0
|
作者：
Li, Jian [1 ]
Liu, En-hui [1 ]
Li, Wen [1 ]
Meng, Xiang-yun [1 ]
Tan, Song-ting [1 ]
机构：
[1] College of Chemistry, Xiangtan University, Hunan 411105, China
来源：
Journal of Alloys and Compounds | 2009年 / 478卷 / 1-2期
关键词：
Nickel-embedded carbon nanofibers were prepared by the processes of stabilization and carbonation after electrospinning a mixture solution of nickel acetate and polyacrylonitrile in N; N-dimethylformamide. The surface morphology and structure of composites were examined by scanning electron microscope (SEM) and X-ray diffraction (XRD). Compared with performances of composite electrodes with different mass ratios of nickel and carbon by cyclic voltammetry (CV) and chronopotentiogram test; the results show that the introduction of a proper proportion of nickel into carbon could enhance both specific capacitance (SC) and electrochemical stability. The specific capacitance of the carbon nanofiber electrode without the Ni loading was 50 F/g; while that of 22.4 wt.% Ni/carbon electrode increased to 164 F/g. The improved specific capacitance may be attributed to synergic effects from each pristine component; and the electrochemical catalysis effect of nickel. © 2008 Elsevier B.V. All rights reserved;
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页码：371 / 374
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