Sustainable activated carbon fiber from sawdust by reactivation for high-performance supercapacitors

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• 作者：Yuxiang Huang ; Yue Liu ; Guangjie Zhao ; Jonathan Y. Chen
• 刊名：Journal of Materials Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：52
• 期：1
• 页码：478-488
• 全文大小：3,756 KB
• 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
• 卷排序：52

文摘

Activated carbon fibers (ACFs) produced from recycled fir sawdust were used as electrodes in supercapacitors. It was shown that the ultramicropores (0.65–0.85 nm) were most efficient in contributing to the supercapacitor capacitance, while mesopores helped increase the rate performance capacitance. The experimental ACF electrode supercapacitor indicated a capacitance of 242 F g−1 in 6 M KOH aqueous electrolyte exhibiting a high energy density of 8.4 Wh kg−1 at a power density of 250 W kg−1. Excellent cycle stability was also achieved, showing a good competitiveness of wood-based ACFs in comparison with other activated carbons currently used in supercapacitors.