物理化学学报 >> 2003, Vol. 19 >> Issue (05): 428-431.doi: 10.3866/PKU.WHXB20030510

研究论文 上一篇    下一篇

单壁纳米碳管的纯化及表征

王新庆;王淼;李振华;朱海滨;王凤飞   

  1. 浙江大学, 1物理系, 2微系统研究与开发中心, 3力学系, 杭州　310027
  • 收稿日期:2002-10-07 修回日期:2002-12-02 发布日期:2003-05-15
  • 通讯作者: 王淼 E-mail:miaowang@css.zju.edu.cn

Purification and Characterization of Single-Walled Carbon Nanotubes Produced by Arc-Discharge

Wang Xin-Qing;Wang Miao;Li Zhen-Hua;Zhu Hai-Bin;Wang Feng-Fei   

  1. 1Department of Physics, 2Micro System Center for Research and Development, 3Department of Mechanics, Zhejiang University, Hangzhou　310027
  • Received:2002-10-07 Revised:2002-12-02 Published:2003-05-15
  • Contact: Wang Miao E-mail:miaowang@css.zju.edu.cn

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摘要： 利用微孔膜及空气氧化法逐步除去电弧放电法制备的单壁纳米碳管(SWCNTs)中的金属催化剂粒子、碳纳米粒子、无定形碳等杂质,并利用热重分析（TGA）、高分辨透射电子显微镜（HRTEM）及拉曼（Raman）光谱,对每一步得到的产物进行分析表征.实验证明,该方法对单壁纳米碳管的纯化是比较有效的,可以得到纯度在90％以上的单壁纳米碳管.

关键词: 单壁纳米碳管, 微孔膜, 电弧放电, 热重分析, 拉曼光谱

Abstract: A purification procedure using microporous membrane and oxidation in air for single-walled carbon nanotubes (SWCNTs) prepared by arc-discharge was discussed which eliminated coexisting metal nanoparticles, carbon nanoparticles and other impurities. The characterization of SWCNTs was carried out at different steps of the purification by TGA, HRTEM and Raman spectra. Experiments show that the method we used is effective to purify the SWCNTs produced by arc-discharge, SWCNTs with the purity of more than 90％ could be obtained.

Key words: Single-walled carbon nanotube (SWCNT), Microporous membrane, Arc-discharge, Thermogravimetric analysis (TGA), Raman spectrum