Synthesis of narrow diameter distribution carbon nanotubes on ZnO supported catalysts

Multiwall carbon nanotubes were grown over a Co/ZnO catalyst from acetylene by using a cold-wall radiofrequency chemical vapor deposition method. Multiwall carbon nanotubes, as indicated by electron microscopy and spectroscopy, were grown over a novel Co(5 wt.%)/ZnO catalyst by using a cold wall rad...

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Bibliographic Details
Published in:Chemical physics letters 2009-05, Vol.473 (4), p.299-304
Main Authors: Lupu, Dan, Biris, Alexandru R., Watanabe, Fumiya, Li, Zhongrui, Dervishi, Enkeleda, Saini, Viney, Xu, Yang, Biris, Alexandru S., Baibarac, Mihaela, Baltog, Ioan
Format: Article
Language:English
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Summary:Multiwall carbon nanotubes were grown over a Co/ZnO catalyst from acetylene by using a cold-wall radiofrequency chemical vapor deposition method. Multiwall carbon nanotubes, as indicated by electron microscopy and spectroscopy, were grown over a novel Co(5 wt.%)/ZnO catalyst by using a cold wall radio-frequency catalytic chemical vapor deposition method. The nanotubes were found to have a rather narrow diameter distribution, which can be explained by the formation over the ZnO support particles of uniform Co clusters, as shown by high resolution transmission electron microscopy studies. The growth of carbon nanotubes over such a support could represent a fast and reliable method to develop in one step 3D ZnO–CNTs heterogeneous composites of any size or shape, for use in advanced applications.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2009.03.069