| The effect of reaction temperature on the diameter distribution of carbon nanotubes grown from ethylene decomposition over a Co-La-O catalyst | |
| Department | 羰基合成与选择氧化国家重点实验室 ; 精细石油化工中间体国家工程研究中心 |
Chen L(陈龙); Liu HT(柳海涛); Yang KL(杨克丽); Wang JK(王健康) ; Wang XL(王晓来)
| |
| 2008 | |
| Source Publication | Materials Chemistry and Physics
 |
| ISSN | 0254-0584 |
| Volume | 112Pages:407-411 |
| Abstract | 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%. |
| Keyword | Nanostructures Chemical Vapor Deposition (Cvd) Electron Microscopy Raman Spectroscopy And Scattering |
| Subject Area | 多相催化 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 多相选择氧化研究组 ; EVA及新型降凝剂研发组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3239 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） 精细石油化工中间体国家工程研究中心（ERC） |
| Corresponding Author | Wang XL(王晓来) |
| Recommended Citation GB/T 7714 | Chen L,Liu HT,Yang KL,et al. 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 | 陈龙,柳海涛,杨克丽,王健康,&王晓来.(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 | 陈龙,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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 58_Mater.Chem.Phys.,（813KB） | 开放获取 | License | View Application Full Text | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment