| Importance of Oxygen in the Metal-Free Catalytic Growth of Single-Walled Carbon Nanotubes from SiO(x) by a Vapor-Solid-Solid Mechanism | |
| B. L. Liu; D. M. Tang; C. H. Sun; C. Liu; W. C. Ren; F. Li; W. J. Yu; L. C. Yin; L. L. Zhang; C. B. Jiang; H. M. Cheng | |
| 2011 | |
| Source Publication | Journal of the American Chemical Society
 |
| ISSN | 0002-7863 |
| Volume | 133Issue:2Pages:197-199 |
| Abstract | To understand in-depth the nature of the catalyst and the growth mechanism of single-walled carbon nanotubes (SWCNTs) on a newly developed silica catalyst, we performed this combined experimental and theoretical study. In situ transmission electron microscopy (TEM) observations revealed that the active catalyst for the SWCNT growth is solid and amorphous SiO(x) nanoparticles (NPs), suggesting a vapor-solid-solid growth mechanism. From in situ TEM and chemical vapor deposition growth experiments, we found that oxygen plays a crucial role in SWCNT growth in addition to the well-known catalyst size effect. Density functional theory calculations showed that oxygen atoms can enhance the capture of-CH(x) and consequently facilitate the growth of SWCNTs on oxygen-containing SiO(x) NPs. |
| description.department | [liu, bilu; tang, dai-ming; liu, chang; ren, wencai; li, feng; yu, wan-jing; yin, li-chang; zhang, lili; jiang, chuanbin; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [sun, chenghua] univ queensland, australian inst bioengn & nanotechnol, ctr computat mol sci, brisbane, qld 4072, australia. [sun, chenghua] univ queensland, sch engn, arc ctr excellence funct nanomat, brisbane, qld 4072, australia.;ren, wc (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;wcren@imr.ac.cn cheng@imr.ac.cn |
| Keyword | Nanoparticles Graphitization |
| URL | 查看原文 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/30505 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | B. L. Liu,D. M. Tang,C. H. Sun,et al. Importance of Oxygen in the Metal-Free Catalytic Growth of Single-Walled Carbon Nanotubes from SiO(x) by a Vapor-Solid-Solid Mechanism[J]. Journal of the American Chemical Society,2011,133(2):197-199. |
| APA | B. L. Liu.,D. M. Tang.,C. H. Sun.,C. Liu.,W. C. Ren.,...&H. M. Cheng.(2011).Importance of Oxygen in the Metal-Free Catalytic Growth of Single-Walled Carbon Nanotubes from SiO(x) by a Vapor-Solid-Solid Mechanism.Journal of the American Chemical Society,133(2),197-199. |
| MLA | B. L. Liu,et al."Importance of Oxygen in the Metal-Free Catalytic Growth of Single-Walled Carbon Nanotubes from SiO(x) by a Vapor-Solid-Solid Mechanism".Journal of the American Chemical Society 133.2(2011):197-199. |
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