Effect of temperature, pressure, and gas ratio of methane to hydrogen on the synthesis of double-walled carbon nanotubes by chemical vapour deposition

被引：56
作者：
Xiong, GY
Suda, Y
Wang, DZ
Huang, JY
Ren, ZF [1 ]
机构：
[1] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA
[2] Hokkaido Univ, Grad Sch Engn, Div Elect & Informat Engn, Sapporo, Hokkaido 0608628, Japan
来源：
NANOTECHNOLOGY | 2005年 / 16卷 / 04期
关键词：
D O I：
10.1088/0957-4484/16/4/033
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Double-walled carbon nanotubes (DWCNTs) were synthesized by chemical vapour deposition using Fe-Mo catalyst supported on magnesium oxide particles. A mixture of gases of methane and hydrogen was used for the growth. The effect of gas pressure, ratio of methane to hydrogen, and growth temperature on the structure, purity, and yield of DWCNTs has been studied in detail. Transmission electron microscope studies revealed that the growth temperature is the crucial factor determining the size of the catalyst particles. Scanning electron microscope studies were also carried out to provide information on the purity and diameter of DWCNTs synthesized under various conditions.
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收藏
页码：532 / 535
页数：4
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