Citation: FU Qing-Bin, GAO Bo, SU Ling-Hao, YUAN Chang-Zhou, LU Xiang-Jun, ZHANG Xiao-Gang. Preparation of Polypyrrole/Benzenesulfonic Functionalized Multi-Walled Carbon Nanotubes Induced by Hydrogen Bonding and Their Electrochemical Behavior[J]. Acta Physico-Chimica Sinica, 2009, 25(11): 2199-2204. doi: 10.3866/PKU.WHXB20091023
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
English
Preparation of Polypyrrole/Benzenesulfonic Functionalized Multi-Walled Carbon Nanotubes Induced by Hydrogen Bonding and Their Electrochemical Behavior
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 od 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.
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Key words:
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Supercapacitor
- / Polypyrrole
- / Carbon nanotube
- / Benzenesulfonic functionalization
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