新型炭材料2013，Vol.28Issue(2)：146-150,5.
预处理方法对多壁碳纳米管双电层电容器的影响
The influence of pretreatment on multi-wall carbon nanotubes for electrochemical capacitors
摘要
Abstract
Multi-wall carbon nanotubes (MWCNTs) prepared by chemical vapor deposition, were pretreated by ball milling, chemical activation and ammoxidation and the influence of the pretreatment on their electrochemical capacitance was investigated. Results show that MWCNTs can be shortened and broken by ball milling and chemical activation, and as a result their surface area and pore volume are increased. However, ammoxidation decreases the surface area of the activated MWCNTs. The electrical conductivity of the ball-milled MWCNTs is the smallest while that of the ammoxidated is the largest. The specific capacitances of the ball-milled and the activated MWCNTs are close, but higher than that of the ammoxidated MWCNTs. The capacitances of the MWCNTs pretreated by ball milling, chemical activation and ammoxidation are reduced by 17, 27 and 13% respectively when the discharge current density is increased from 5 to 100 mA/g.关键词
多壁碳纳米管/预处理/双电层电容器Key words
Multi-walled carbon nanotubes/Pretreatment/ Electrochemical double-layer capacitor分类
化学化工引用本文复制引用
耿新,李峰,王大伟,成会明..预处理方法对多壁碳纳米管双电层电容器的影响[J].新型炭材料,2013,28(2):146-150,5.基金项目
辽宁省教育厅科学技术研究项目(2008330) （2008330）
中国科学院王宽诚教育基金会项目(20040927162422). （20040927162422）
