| Structural evolution of carbon microcoils induced by a direct current |
| D. M. Tang; C. Liu; F. Li; W. C. Ren; J. H. Du; X. L. Ma; H. M. Cheng
|
| 2009
|
| 发表期刊 | Carbon
 |
| ISSN | 0008-6223
|
| 卷号 | 47期号:3页码:670-674 |
| 摘要 | The structural evolution of a carbon microcoil (CMC) induced by a direct current was studied using a scanning tunneling microscope-transmission electron microscope work station. We found that the CMC got broken when a high-density current was passed through, and it was partially transformed into hollow graphitic spheres, double-walled carbon nanotubes, and fullerenes. A transformation process involving pore formation, high temperature induced graphitization, and closure of dangling bonds is proposed. The driving force of the structural evolution is considered to be the high temperature effect and electromigration effect brought by the current, and the graphitic crystallites composing the CMCs tend to reconstruct to form carbon nanomaterials with enhanced structural integrity when a high-density direct current is applied. (C) 2008 Elsevier Ltd. All rights reserved. |
| 部门归属 | [tang, dai-ming; liu, chang; li, feng; ren, wen-cai; du, jin-hong; ma, xiu-liang; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;liu, c (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;cliu@imr.ac.cn
|
| 关键词 | In-situ Observation
Electron-irradiation
Catalytic Pyrolysis
Diamond
Nanotubes
Acetylene
Coil
Morphology
Fibers
Onions
|
| URL | 查看原文
|
| WOS记录号 | WOS:000263623400015
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/32321
|
| 专题 | 中国科学院金属研究所
|
推荐引用方式
GB/T 7714 |
D. M. Tang,C. Liu,F. Li,et al. Structural evolution of carbon microcoils induced by a direct current[J]. Carbon,2009,47(3):670-674.
|
| APA |
D. M. Tang.,C. Liu.,F. Li.,W. C. Ren.,J. H. Du.,...&H. M. Cheng.(2009).Structural evolution of carbon microcoils induced by a direct current.Carbon,47(3),670-674.
|
| MLA |
D. M. Tang,et al."Structural evolution of carbon microcoils induced by a direct current".Carbon 47.3(2009):670-674.
|
修改评论