多壁碳纳米管结构与其电化学容量之间关系的研究-上海有机化学研究所.PDF

2002 年第 60 卷 化 学 学 报 Vol. 60 , 2002 第 8 期 , 1539～1542 ACTA CHIMICA SINICA No. 8 , 1539 ～1542 ·研究简报· 多壁碳纳米管结构与其电化学容量之间关系的研究 江 　奇　　刘宝春　　瞿美臻　　周固民　　张伯兰　　于作龙 ( 中国科学院成都有机化学研究所功能材料研究中心 　成都 610041) 摘要 　 采用化学气相沉积法 ,通过改变催化剂的成分、碳源、反应和后处理条件来制备不同管径、管长、石墨化程度 的多壁碳纳米管. 经电化学容量性能测试、透射电子显微镜观察和 N2 吸附等结构表征 ,发现管径分布为 300～400 nm 、管长越短、石墨化程度越低、比表面积越大、孔容越大的多壁碳纳米管具有更好的电化学容量. 关键词 　多壁碳纳米管 , 电化学容量,结构 A Study on Relations between Structure and Electrochemical Capacitance of Multiwalled Carbon Nanotubes J IANG, Qi 　　LIU , BaoChun 　　QU , MeiZhen 　　ZHOU , GuMin ZHANG, BoLan 　　YU , ZuoLong ( Research and Development Centerfor Functional Materials , Chengdu Institute of Organic Chemistry , ) Chinese Academy of Sciences , Chengdu 610041 Abstract 　Multiwalled carbon nanotubes ( CNTs) with different diameter , different length , and different graphitized degree were grown by chemical catalytic decomposition of hydrocarbons by using different catalysts , different carbon sources under different reaction and pretreatment conditions. The structure and capacitances of these multiwalled CNTs were examined by means of transmission electron microscopy ( TEM) , autosorption instrument and constant current tester. The experiment results show that the CNTs with 30. 0～40. 0 nm in diameter , having shorte