物理化学学报2012，Vol.28Issue(2)：373-380,8.DOI:10.3866/PKU.WHXB201112021
可快速充放电聚吡咯/碳纳米管复合材料电化学聚合与表征
Electropolymerization and Characterization of Fast Charge-Discharge PPy/F-SWNTs Composite Materials
摘要
Abstract
Fast charge-discharge composite materials of conducting polypyrrole and functionalized single-walled carbon nanotubes doped with p-toluenesulfonate (Ppy-TOS/F-SWNTs) were prepared by galvanostatic electrochemical polymerization. Scanning Electron Microscope (SEM) images showed that the composite had a nano-rod structure with a diameter of about 70 nm. Nitrogen adsorption-desorption experinents were used to characterize the specific surface area (BET) (up to 12.64 m2>g"1) and pore sizes of the composite. Electrochemical properties of the composites were studied by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge-discharge (GC) measurements. The specific capacitance of this composite is about 211 F -g"' (energy density: 18.7 Wh ? Kg"') at a current density of 2.5 A ? G"\ and 141.8 F ■g"1 (energy density: 12.6 Wh ? Kg"') at large current density of 80 A - g"1. The composite had excellent cyclability with a capacity retention of about 95.2% after 10000 cycles at a current density of 10 A ? G"'. All these results indicate that this new composite material has a very rapidly charge-discharge ability关键词
超级电容器/电化学聚合/聚吡咯/单壁碳纳米管Key words
Supercapacitor/Electropolymerization/ Polypyrrole/SWNTs分类
化学化工引用本文复制引用
朱剑波,徐友龙,王杰,王景平..可快速充放电聚吡咯/碳纳米管复合材料电化学聚合与表征[J].物理化学学报,2012,28(2):373-380,8.基金项目
国家高技术研究发展计划(863)(2007AA03Z249)和国家自然科学基金(20804030)资助项目 （863）
