The effect of reaction temperature on the diameter distribution of carbon nanotubes grown from ethylene decomposition over a Co-La-O catalyst
文献类型：期刊论文
| 作者 | Wang XL(王晓来) ; Wang JK(王健康)
|
| 刊名 | Materials Chemistry and Physics
 |
| 出版日期 | 2008 |
| 卷号 | 112页码:407-411 |
| 关键词 | Nanostructures Chemical vapor deposition (CVD) Electron microscopy Raman spectroscopy and scattering |
| ISSN号 | 0254-0584 |
| 通讯作者 | 王晓来 |
| 中文摘要 | The production of carbon nanotubes (CNTs) by the chemical catalytic vapor deposition (CCVD) process was examined over a Co-La-O catalyst prepared by combustion synthesis method. Some important advantages of preparing nanotubes are obvious with Co-La-O as catalyst, i.e., the product yield is higher (up to 412.6%) and the reaction temperature is lower (<750 ◦C) compared with other methods. The effects of reaction temperature on the carbon yield, diameter distribution and quality of CNTs were investigated. Transmission electron microscopy (TEM) studies showthat an increase in reaction temperature produces CNTs with larger average diameter and broader diameter distribution. This is basically due to the agglomeration of metallic cobalt at higher reaction temperatures to form larger and non-uniform metallic clusters which are responsible for the growth of CNTs. Raman spectra further elucidate that better graphitized CNTs are produced at higher reaction temperatures. After a single-step purification by hydrochloric acid, the purity of CNTs can reach up to 96%. |
| 学科主题 | 多相催化 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000261022200019 |
| 公开日期 | 2013-06-27 |
| 源URL | [http://210.77.64.217/handle/362003/3239]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 兰州化学物理研究所_ERC国家工程研究中心 |
| 通讯作者 | Wang XL(王晓来) |
| 推荐引用方式 GB/T 7714 | Wang XL,Wang JK. The effect of reaction temperature on the diameter distribution of carbon nanotubes grown from ethylene decomposition over a Co-La-O catalyst[J]. Materials Chemistry and Physics,2008,112:407-411. |
| APA | 王晓来,&王健康.(2008).The effect of reaction temperature on the diameter distribution of carbon nanotubes grown from ethylene decomposition over a Co-La-O catalyst.Materials Chemistry and Physics,112,407-411. |
| MLA | 王晓来,et al."The effect of reaction temperature on the diameter distribution of carbon nanotubes grown from ethylene decomposition over a Co-La-O catalyst".Materials Chemistry and Physics 112(2008):407-411. |
入库方式： OAI收割
来源：兰州化学物理研究所
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