Tracing carbon nanotube evolution from immature tubules

被引:5
作者
Du, Guixiang [1 ,2 ]
Zhao, Jianghong [1 ]
Song, Jinling [1 ,2 ]
Feng, Shouai [1 ,2 ]
Song, Chang [1 ,2 ]
Zhu, Zhenping [1 ]
机构
[1] Chinese Acad Sci, State Key Lab Coal Convers, Inst Coal Chem, Taiyuan 030001, Shanxi, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
关键词
CHEMICAL-VAPOR-DEPOSITION; CATALYTIC GROWTH; MECHANISM; STRANDS; NANOPARTICLES; NUCLEATION; DETONATION; PYROLYSIS; PRESSURE; SUPPORT;
D O I
10.1016/j.cplett.2008.11.078
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The detailed TEM observations of the immature carbon nanotubes (CNTs), obtained at relatively low temperatures by floating chemical vapor deposition (CVD), indicate that they can be viewed as intermediate objects and record rich and convincible traces about CNT evolution. The results clearly show that the CNT formation in floating CVD follows the particle-wire-tube stepwise evolution mechanism and also provide detailed information about the particle coalescence and structural integration and extension. This new knowledge not only gives a clearer picture for the CNT evolution in floating CVD but also might provide a general method for mechanism studies for other synthesis processes. (C) 2008 Elsevier B. V. All rights reserved.
引用
收藏
页码:57 / 63
页数:7
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