Low pressure synthesis of single-walled carbon nanotubes by arc discharge

被引：73
|
作者：
Park, YS
Kim, KS
Jeong, HJ
Kim, WS
Moon, JM
An, KH
Bae, DJ
Lee, YS
Park, GS
Lee, YH [1 ]
机构：
[1] Sungkyunkwan Univ, Ctr Nanotubes & Nanostructured Composites, Inst Basic Sci, Dept Phys, Suwon 440746, South Korea
[2] Sunchon Natl Univ, Coll Engn, Dept Chem Engn, Sunchon 540742, South Korea
[3] Samsung Adv Inst Technol, Analyt Engn Lab, Suwon 440600, South Korea
来源：
SYNTHETIC METALS | 2002年 / 126卷 / 2-3期
关键词：
carbon nanotubes; arc discharge; low pressure;
D O I：
10.1016/S0379-6779(01)00563-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High yield of single-walled carbon nanotubes (SWCNTs) has been synthesized by do arc discharge under low pressure of helium gas with a small amount of a mixture of nickel and iron powders. The highest yield of carbon nanotubes (CNTs) was obtained at low pressure of 100 Torr with 5 wt.% of metal mixture, in good contrast with the previous works. In addition, we introduced sulfur promoter to improve the yield, which gave rise to again the highest yield at low gas pressure. This was attributed to the higher arching temperature at lower gas pressure, facilitating an efficient formation of CNTs. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：245 / 251
页数：7
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