| Synthesis and characterization of double-walled carbon nanotubes from multi-walled carbon nanotubes by hydrogen-arc discharge |
| L. X. Li; F. Li; C. Liu; H. M. Cheng
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| 2005
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| 发表期刊 | Carbon
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| ISSN | 0008-6223
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| 卷号 | 43期号:3页码:623-629 |
| 摘要 | Double-walled carbon nanotubes (DWNTs) were synthesized in a large scale by a hydrogen arc discharge method using graphite powders or multi-walled carbon nanotubes/carbon nanofibers (MWNTs/CNFs) as carbon feedstock. The yield of DWNTs reached about 4g/h. We found that the DWNT product synthesized from MWNTs/CNFs has higher purity than that from graphite powders. The results from high-resolution transmission electron microscopy observations revealed that more than 80% of the carbon nanotubes were DWNTs and the rest were single-walled carbon nanotubes (SWNTs), and their outer and inner diameters ranged from 1.75 to 4.87nm and 1.06 to 3.93nm, respectively. It was observed that the ends of the isolated DWNTs were uncapped and it was also found that cobalt as the dominant composition of the catalyst played a vital role in the growth of DWNTs by this method. In addition, the pore structures of the DWNTs obtained were investigated by cryogenic nitrogen adsorption measurements. (C) 2004 Elsevier Ltd. All rights reserved. |
| 部门归属 | chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china.;cheng, hm (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;cheng@imr.ac.cn
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| 关键词 | Carbon Nanotubes
Arc Discharge
Adsorption Properties
Microstructure
Raman-scattering
Catalytic Decomposition
Diameter Distribution
Fullerenes
Identification
Morphology
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| URL | 查看原文
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| WOS记录号 | WOS:000226574600020
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/34901
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
L. X. Li,F. Li,C. Liu,et al. Synthesis and characterization of double-walled carbon nanotubes from multi-walled carbon nanotubes by hydrogen-arc discharge[J]. Carbon,2005,43(3):623-629.
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| APA |
L. X. Li,F. Li,C. Liu,&H. M. Cheng.(2005).Synthesis and characterization of double-walled carbon nanotubes from multi-walled carbon nanotubes by hydrogen-arc discharge.Carbon,43(3),623-629.
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| MLA |
L. X. Li,et al."Synthesis and characterization of double-walled carbon nanotubes from multi-walled carbon nanotubes by hydrogen-arc discharge".Carbon 43.3(2005):623-629.
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