Comparison between Copper and Iron as Catalyst for Chemical Vapor Deposition of Horizontally Aligned Ultralong Single-Walled Carbon Nanotubes on Silicon Substrates
文献类型：期刊论文
| 作者 | Cui, Rongli; Zhang, Yan; Wang, Jinyong; Zhou, Weiwei; Li, Yan |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2010-09-23 |
| 卷号 | 114期号:37页码:15547-15552 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/jp100286c |
| 英文摘要 | A careful comparison was performed between Cu and Fe as catalysts for the growth of horizontally aligned ultralong single-walled carbon nanotube (SWNT) arrays on SiO(x)/Si substrates, and the mechanism of the difference was discussed. Cleaner and straighter SWNTs with smaller diameters and narrower size distribution were obtained using Cu as catalyst. It was also found that the SWNTs always grew from the edges of the substrates wherever the catalyst precursors were patterned when Cu was used, while SWNTs normally grew from the patterned catalysts when Fe was used. The size change of Fe and Cu nanoparticles along with the reduction processes shows that Cu nanoparticles were much easier to be vaporized, and the molecular mechanics calculations about the surface energy changes with the particle sizes indicate that the renucleation of Cu tends to form smaller nanoparticles than Fe. This is an important factor that leads to the different performance for Cu and Fe in SWNT growth. This argument was further proved by the fact that using polyvinylpyrrolidone to fix Cu nanoparticles resulted in similar growth behavior to that of Fe catalyst. This study is helpful for further understanding the growth mechanism of SWNTs and gaining more control over the growth of SWNTs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000281754000001 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/71025]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Yan |
| 作者单位 | Peking Univ, Key Lab Phys & Chem Nanodevices, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci,Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Rongli,Zhang, Yan,Wang, Jinyong,et al. Comparison between Copper and Iron as Catalyst for Chemical Vapor Deposition of Horizontally Aligned Ultralong Single-Walled Carbon Nanotubes on Silicon Substrates[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2010,114(37):15547-15552. |
| APA | Cui, Rongli,Zhang, Yan,Wang, Jinyong,Zhou, Weiwei,&Li, Yan.(2010).Comparison between Copper and Iron as Catalyst for Chemical Vapor Deposition of Horizontally Aligned Ultralong Single-Walled Carbon Nanotubes on Silicon Substrates.JOURNAL OF PHYSICAL CHEMISTRY C,114(37),15547-15552. |
| MLA | Cui, Rongli,et al."Comparison between Copper and Iron as Catalyst for Chemical Vapor Deposition of Horizontally Aligned Ultralong Single-Walled Carbon Nanotubes on Silicon Substrates".JOURNAL OF PHYSICAL CHEMISTRY C 114.37(2010):15547-15552. |
入库方式： OAI收割
来源：化学研究所
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