Carbon dioxide as a carbon source for synthesis of carbon nanotubes by chemical vapor deposition
| Autor: | Shao-ming Huang, Xiang-ju Xu |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Materials science
Carbon nanofiber Mechanical Engineering Selective chemistry of single-walled nanotubes Nanotechnology Carbon nanotube Condensed Matter Physics law.invention Optical properties of carbon nanotubes Carbon film Amorphous carbon Chemical engineering Mechanics of Materials law Carbide-derived carbon General Materials Science Carbon nanotube supported catalyst |
| Zdroj: | Materials Letters. 61:4235-4237 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2007.01.059 |
| Popis: | Carbon dioxide was successfully used as carbon source in the synthesis of carbon nanotubes (CNTs) by chemical vapor deposition (CVD) over Fe/CaO catalyst. The product was evaluated using both transmission electron microscopy (TEM) and Raman spectroscopy. Crooked and branching structures of multi-walled carbon nanotubes (MCNTs) with diameters of around 50 nm were observed on the TEM micrographs. Raman spectrum results show that the nanotubes have small defects, which is in agreement with the results of TEM. The influence of reaction variable such as furnace temperature and types of support media was also studied and the reaction mechanism was then discussed in this paper. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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