Evidence for, and an understanding of, the initial nucleation of carbon nanotubes produced by a floating catalyst method
文献类型：期刊论文
| 作者 | W. C. Ren ; F. Li ; H. M. Cheng |
| 刊名 | Journal of Physical Chemistry B
 |
| 出版日期 | 2006 |
| 卷号 | 110期号:34页码:16941-16946 |
| 关键词 | large-scale synthesis diameter distribution molecular-dynamics raman-scattering growth-mechanism metal particles long ropes single sulfur decomposition |
| ISSN号 | 1520-6106 |
| 中文摘要 | An understanding of the growth mechanism of carbon nanotubes (CNTs) is very important for the control of their structures, which in turn will be the basis for their further theoretical studies and applications. On the basis of high-resolution transmission electron microscopy observations of the initial nucleation of CNTs, the following deductions are made: ( 1) the nucleation of single-walled carbon nanotubes (SWNTs) and double-walled carbon nanotubes (DWNTs) starts at a low-temperature zone in front of the reaction zone; ( 2) the addition of sulfur results in localized liquid zones on the surface of big catalyst particles as the initial nucleation sites; (3) a temperature gradient is necessary to realize the role of sulfur in the structure of CNTs; and ( 4) the shell number of CNTs can be changed at the nucleation and growth stages. On the basis of the above, a growth model for the formation of SWNTs and DWNTs is proposed, which might open up the possibility of controlling the structure of CNTs. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34443]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | W. C. Ren,F. Li,H. M. Cheng. Evidence for, and an understanding of, the initial nucleation of carbon nanotubes produced by a floating catalyst method[J]. Journal of Physical Chemistry B,2006,110(34):16941-16946. |
| APA | W. C. Ren,F. Li,&H. M. Cheng.(2006).Evidence for, and an understanding of, the initial nucleation of carbon nanotubes produced by a floating catalyst method.Journal of Physical Chemistry B,110(34),16941-16946. |
| MLA | W. C. Ren,et al."Evidence for, and an understanding of, the initial nucleation of carbon nanotubes produced by a floating catalyst method".Journal of Physical Chemistry B 110.34(2006):16941-16946. |
入库方式： OAI收割
来源：金属研究所
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