Landois, Périne
and Peigney, Alain and Laurent, Christophe and Frin, L. and Datas, Lucien and Flahaut, Emmanuel
CCVD synthesis of carbon nanotubes with W/Co–MgO catalysts.
(2008)
Carbon, 47 (3). 784-789. ISSN 0008-6223
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 632kB |
Official URL: http://dx.doi.org/10.1016/j.carbon.2008.11.018
Abstract
Carbon nanotubes (CNT) were synthesized from a H2–CH4 mixture with W/Co–MgO catalyst by a catalytic chemical vapour deposition (CCVD) method. Different W/Co ratios were investigated. From transmission electron microscopy observations, we observed that both the number of walls and the diameter of CNT increased with the proportion of tungsten. A promoter effect was observed as long as the proportion of tungsten was kept low and CNT with a number of walls ranging from 2 to 5 were obtained. With a higher proportion of tungsten, multi-walled carbon nanotubes (MWNT) up to 10 walls were synthesised, together with additional undesirable carbon nanofibres.
| Item Type: | Article |
|---|---|
| Additional Information: | Thanks to Elsevier editor. The original version is available at http://www.sciencedirect.com The original PDF of the article can be found at Carbon website : http://www.sciencedirect.com/science/journal/00086223 |
| HAL Id: | hal-03572800 |
| Audience (journal): | International peer-reviewed journal |
| Uncontrolled Keywords: | |
| Institution: | Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) |
| Laboratory name: | |
| Statistics: | download |
| Deposited On: | 16 Jun 2009 09:27 |
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