物理化学学报 >> 2009, Vol. 25 >> Issue (11): 2199-2204.doi: 10.3866/PKU.WHXB20091023

研究论文 上一篇    下一篇

氢键诱导的聚吡咯/苯磺酸功能化多壁碳纳米管的制备及其电化学行为

傅清宾, 高博, 苏凌浩, 原长洲, 卢向军, 张校刚   

  1. 南京航空航天大学材料科学与技术学院, 南京 210016
  • 收稿日期:2009-04-17 修回日期:2009-06-24 发布日期:2009-10-28
  • 通讯作者: 张校刚 E-mail:azhangxg@163.com

Preparation of Polypyrrole/Benzenesulfonic Functionalized Multi-Walled Carbon Nanotubes Induced by Hydrogen Bonding and Their Electrochemical Behavior

FU Qing-Bin, GAO Bo, SU Ling-Hao, YUAN Chang-Zhou, LU Xiang-Jun, ZHANG Xiao-Gang   

  1. College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
  • Received:2009-04-17 Revised:2009-06-24 Published:2009-10-28
  • Contact: ZHANG Xiao-Gang E-mail:azhangxg@163.com

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摘要：

采用原位芳基重氮化反应对碳纳米管进行苯磺酸功能化, 进而制备了聚吡咯/苯磺酸化碳纳米管复合材料(PPy/f-MWCNTs), 通过透射电镜(TEM)及扫描电镜(SEM)测试发现, 氢键诱导使聚吡咯成功地包覆在碳纳米管表面. 循环伏安和恒流充放电测试结果表明, 复合材料具有良好的电化学电容性能, 当聚吡咯与苯磺酸化碳纳米管质量比为1:1时, 复合材料在1.0 A·g-1的电流密度下的比容量达266 F·g-1, 而且聚吡咯利用率比未功能化聚吡咯/碳纳米管(PPy/p-MWCNTs)和纯聚吡咯(PPy)提高了1倍以上.

关键词: 超级电容器, 聚吡咯, 碳纳米管, 苯磺酸功能化

Abstract:

Multi-walled carbon nanotubes were functionalized using in situ generated aryl diazonium and were then used to synthesize polypyrrole/benzenesulfonic functionalized multi-walled carbon nanotube composites (PPy/f-MWCNTs). Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) results indicated that a uniform PPy was successfully coated onto the sidewall of the f-MWCNTs, which was induced by hydrogen bonding. Cyclic voltammetry and galvanostatic charge/discharge measurements results showed that the composite possessed good electrochemical capacitive performance. The composite with m(PPy):m(MWCNTs) of 1:1 had a capacity of 266 F·g-1 at a current density of 1.0 A·g-1, and the utilization of PPy was more than one time higher than polypyrrole/un-functionalized multi-walled carbon nanotube composites (PPy/p-MWCNTs) and pure PPy.

Key words: Supercapacitor, Polypyrrole, Carbon nanotube, Benzenesulfonic functionalization

MSC2000: 

  • O644