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Citation: Wang Xin-Qing, Wang Miao, Li Zhen-Hua, Zhu Hai-Bin, Wang Feng-Fei. Purification and Characterization of Single-Walled Carbon Nanotubes Produced by Arc-Discharge[J]. Acta Physico-Chimica Sinica, ;2003, 19(05): 428-431. doi: 10.3866/PKU.WHXB20030510 shu

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

1.
1Department of Physics, 2Micro System Center for Research and Development, 3Department of Mechanics, Zhejiang University, Hangzhou　310027

Received Date: 7 October 2002
Available Online: 15 May 2003

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.
- Single-walled carbon nanotube (SWCNT);Microporous membrane;Arc-discharge;Thermogravimetric analysis (TGA);Raman spectrum
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