物理化学学报 >> 2010, Vol. 26 >> Issue (12): 3169-3174.doi: 10.3866/PKU.WHXB20101203

电化学 上一篇    下一篇

静电纺丝制备多孔碳纳米纤维及其电化学电容行为

张校菠1, 陈名海3, 张校刚2, 李清文3   

  1. 1. 新疆大学化学化工学院, 乌鲁木齐830046;
    2. 南京航空航天大学材料科学与技术学院, 南京210016;
    3. 中国科学院苏州纳米技术与纳米仿生研究所, 江苏苏州215123
  • 收稿日期:2010-07-01 修回日期:2010-09-29 发布日期:2010-12-01
  • 通讯作者: 张校刚, 李清文 E-mail:azhangxg@163.com, qwli2007@sinano.ac.cn
  • 基金资助:

    国家重点基础研究发展计划项目(973) (2007CB209703)和国家自然科学基金(20633040, 20873064)资助

Preparation of Porous Carbon Nanofibers by Electrospinning and Their Electrochemical Capacitive Behavior

ZHANG Xiao-Bo1, CHEN Ming-Hai3, ZHANG Xiao-Gang2, LI Qing-Wen3   

  1. 1. College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, P. R. China;
    2. College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China;
    3. Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, Jiangsu Province, P. R. China
  • Received:2010-07-01 Revised:2010-09-29 Published:2010-12-01
  • Contact: ZHANG Xiao-Gang, LI Qing-Wen E-mail:azhangxg@163.com, qwli2007@sinano.ac.cn
  • Supported by:

    The project was supported by the National Key Basic Research Program of China (973) (2007CB209703) and National Natural Science Foundation of China (20633040, 20873064).

摘要:

采用静电纺丝技术, 以聚丙烯腈(PAN)/醋酸锌为前驱体制备复合纳米纤维, 随后经碳化、酸化获得多孔碳纳米纤维. 扫描电子显微镜(SEM)观察发现, 碳纳米纤维表面分布大量孔洞. N2吸脱附等温曲线(BET)测试材料比表面积达413 m2·g-1. 循环伏安法(CV)和恒流充放电(CP)性能测试表明: 多孔碳纳米纤维具有较好的电化学性能, 在1 A·g-1的电流密度下比电容达275 F·g-1. 相比碳纳米纤维比容量提高了162%.

关键词: 超级电容器, 静电纺丝, 多孔碳纳米纤维

Abstract:

Zinc acetate/polyacrylonitrile nanofibers were prepared by an electrospinning method. The as-prepared nanofibers were carbonized under argon and washed with acid to obtain porous carbon nanofibers. The surface morphology and microstructure of the porous carbon nanofibers were examined by scanning electron microscopy and X-ray diffraction. The surface area was found to be 413 m2·g-1 by the Brunauer-Emmett-Teller (BET) method. The electrochemical performance of the electrodes was characterized by cyclic voltammetry and by chronopotentiogram tests. The results showed that the specific capacitance of the as-repapered carbon porous nanofiber electrode was 275 F·g-1 under 1 A·g-1, which is 162% higher than that of the carbon nanofibers without a porous structure.

Key words: Supercapacitor, Electrospinning, Porous carbon nanofiber

MSC2000: 

  • O646