Atomic-scale in-situ observation of carbon nanotube growth from solid state iron carbide nanoparticles

被引：480
|
作者：
Yoshida, Hideto [1 ,3 ]
Takeda, Seiji [1 ,3 ]
Uchiyama, Tetsuya [1 ,3 ]
Kohno, Hideo [1 ,3 ]
Homma, Yoshikazu [2 ,3 ]
机构：
[1] Osaka Univ, Grad Sch Sci, Osaka 5600043, Japan
[2] Tokyo Univ Sci, Dept Phys, Tokyo 1628601, Japan
[3] Japan Sci & Technol Agcy, CREST, Tokyo 1020075, Japan
来源：
NANO LETTERS | 2008年 / 8卷 / 07期
关键词：
D O I：
10.1021/nl080452q
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We have first observed the nucleation and growth process of carbon nanotubes (CNTs) from iron carbide (Fe3C) nanoparticles in chemical vapor deposition with C2H2 by in situ environmental transmission electron microscopy. Graphitic networks are formed on the fluctuating iron carbide nanoparticles, and subsequently CNTs are expelled from them. Our atomic scale observations suggest that carbon atoms diffuse through the bulk of iron carbide nanoparticles during the growth of CNTs.
引用
收藏
页码：2082 / 2086
页数：5
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