Carbon nanotubes growth from C2H2 and C2H4/NH3 by catalytic LCVD on supported iron-carbon nanocomposites
Journal article, 2007
We report about the synthesis of carbon nanotubes by catalytic LCVD (C-LCVD), using a CW CO2 laser and alternatively, C2H2/ C2H4/NH3 and C2H2/C2H4-containing gas mixtures. Different core-shell Fe-C nanocomposites (as synthesized and toluene extracted) were used employed as catalysts. The nanotubes grown from Fe-C residue demonstrate the lowest mean diameters. Prevalent curled and coiled morphologies are obtained for the CNTs grown in the presence of ammonia. (c) 2006 Elsevier B.V. All rights reserved.
precursor
GAS
coiled shape
FILMS
FIELD-EMISSION
ammonia
Fe-C nanocomposites
CHEMICAL-VAPOR-DEPOSITION
catalytic LCVD
cargon nanotubes
Author
I. Morjan
National Institute for Laser, Plasma and Radiation Physics
I. Soare
National Institute for Laser, Plasma and Radiation Physics
R. Alexandrescu
National Institute for Laser, Plasma and Radiation Physics
Raluca Elena Morjan
Chalmers, Applied Physics
L. Gavrila-Florescu
National Institute for Laser, Plasma and Radiation Physics
G. Prodan
Universitatea Ovidius din Constanta
I. Sandu
National Institute for Laser, Plasma and Radiation Physics
E. Popovici
National Institute for Laser, Plasma and Radiation Physics
F. Dumitrache
National Institute for Laser, Plasma and Radiation Physics
I. Voicu
National Institute for Laser, Plasma and Radiation Physics
M. Scarisoreanu
National Institute for Laser, Plasma and Radiation Physics
Physica E: Low-Dimensional Systems and Nanostructures
1386-9477 (ISSN)
Vol. 37 1-2 26-33Subject Categories (SSIF 2011)
Other Engineering and Technologies
DOI
10.1016/j.physe.2006.10.009