Selective formation of carbon nanotubes over Co-modified beta zeolite by CCVD |
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| Authors: | P. Ciambelli D. Sannino A. Fonseca |
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| Affiliation: | a Department of Chemical and Food Engineering, University of Salerno, Via Ponte don Melillo, 84084 Fisciano (Sa), Italy
b Laboratoire de RMN, Facultés Universitaires Notre-Dame de la Paix, 61, Rue de Bruxelles, B-5000 Namur, Belgium |
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| Abstract: | Multiwall carbon nanotubes containing carbon-zeolite composite materials have been obtained by ethylene catalytic chemical vapor deposition (CCVD) on Co-modified beta zeolite powder. High carbon selectivity to nanotubes was achieved. The combined physical characterisation through several techniques, such as TEM, HRTEM, SEM, XRD, N2 adsorption-desorption, allows to determine the geometric characteristics of nanotubes and their dependence of catalyst and synthesis conditions. |
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| Keywords: | A. Carbon nanotubes B. Chemical vapor deposition C. Electron microscopy, X-ray diffraction |
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