Synthesis of single-walled carbon nanotubes by the vertical floating catalyst method  

作　　者：Zhu, HW Li, XS Lijie, C Xu, CL Liang, J Wu, DH 

机构地区：[1]Tsing Hua Univ, Dept Mech Engn, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China

出　　处：《Chinese Science Bulletin》2002年第2期158-161,共4页

基　　金：This work was supported by the State Key Program for Fundament Research of the Ministry of Science and Technology of China (Grant No. G20000264-04).

摘　　要：The vertical floating catalyst method is first used to produce single-walled carbon nanotubes (SWNTs) continuously on a large scale by a newly developed technique and pyrolysis of n-hexane. Diameter distributions, micro-structure and purity of the SWNTs film, rope and web are measured by Raman spectroscopy and electron microscope. The results show that SWNTs product has a high degree of orientation, a wide distribution of diameters (0.7-2.0 nm) and high purity of 】 80 %.The vertical floating catalyst method is first used to produce single-walled carbon nanotubes (SWNTs) continuously on a large scale by a newly developed technique and pyrolysis of n-hexane. Diameter distributions, microstructure and purity of the SWNTs film, rope and web are measured by Raman spectroscopy and electron microscope. The results show that SWNTs product has a high degree of orientation, a wide distribution of diameters (0.7-2.0 nm) and high purity of > 80%.

关 键 词：SINGLE-WALLED carbon nanotubes (SWNT) VERTICAL FLOATING CATALYST METHOD Raman spectroscopy. 

分 类 号：O643.3[理学—物理化学]