Synthesis of ordered mesoporous carbon nanofiber arrays/nickel–boron amorphous alloy with high electrochemical performance for supercapacitor

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• 作者：Yueyue Tan ; Wei Zhang ; Yilong Gao ; Jianxiang Wu…
• 刊名：Journal of Materials Science
• 出版年：2015
• 出版时间：July 2015
• 年：2015
• 卷：50
• 期：13
• 页码：4622-4628
• 全文大小：1,166 KB
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• 作者单位：Yueyue Tan (1)
  Wei Zhang (1)
  Yilong Gao (1)
  Jianxiang Wu (1)
  Bohejin Tang (1)
  
  1. College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Characterization and Evaluation Materials
  Polymer Sciences
  Continuum Mechanics and Mechanics of Materials
  Crystallography
  Mechanics
  
• 出版者：Springer Netherlands
• ISSN：1573-4803

文摘

In this paper, the ordered mesoporous carbon nanofiber arrays (MCNAs), Nickel–Boron (Ni–B) amorphous alloys, and amorphous Ni–B/MCNAs composite for supercapacitor material have been successfully fabricated by a combination of templating method and chemical reduction process. The porous structure and large specific surface area (1270?m2?g?) of MCNAs favor the utilization of the active material Ni–B amorphous alloys and interfacial charge transport, and provide short diffusion paths for ions. X-ray diffraction, small-angle X-ray scattering, inductively coupled plasma. Transmission electron micrographs and selected area electronic diffraction were taken to characterize the structure of the ordered MCNAs, Ni–B amorphous alloy, and amorphous Ni–B/MCNAs. Electrochemical properties are characterized by cyclic voltammetry, galvanostatic charge/discharge measurements, and electrochemical impedance spectroscopy. The results show that the amorphous Ni–B/MCNAs display superior capacitive performance (733?F?g?) over Ni–B amorphous alloys (562?F?g?) at a scan rate of 5 mV?s? and a good cycling stability after 1000 cycles.