单壁纳米碳管的纯化研究

单壁纳米碳管的纯化研究

A purification method to remove the metal catalysts and impurity carbon materials from arc-discharge-grownsingle-walled carbon nanotubes (SWCNTs) has been developed. Microporous membrane and the oxidation in the airfor the crude SWCNTs were used to eliminate the coexisting metal catalysts nanoparticles, carbon nanoparticles andamorphous carbon. Then we used the high resolution transmission electron microscopy (HRTEM) to characterizethe crude SWCNTs prepared by arc-discharge method and the purified SWCNTs. The Raman spectra and thethermogravimetric analysis (TGA) were also utilized to analyze the approach of our purification for SWCNTs. Withthis method the SWCNTs with the purity more than 95% could be obtained.

作 者： 王新庆 王淼 李振华 朱海滨 王凤飞 卢焕明 何丕模   作者单位： 王新庆,王淼(浙江大学物理系,杭州,310027;浙江大学微系统研究与开发中心,杭州,310027)

李振华(浙江大学力学系,杭州,310027)

朱海滨,王凤飞,何丕模(浙江大学物理系,杭州,310027)

卢焕明(浙江大学硅材料国家重点实验室,杭州,310027) 

刊 名： 无机化学学报  ISTIC SCI PKU 英文刊名： CHINESE JOURNAL OF INORGANIC CHEMISTRY  年，卷(期)： 2003 19(6)  分类号： O6130.71  关键词： 单壁纳米碳管   拉曼光谱   热重分析   single-walled carbon nanotube(SWCNTs)   Raman spectra   thermogravimetric analysis (TGA)