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Carbon nanotubes growth from C2H2 and C2H4/NH3 by catalytic LCVD on supported iron-carbon nanocomposites

I. Morjan ; I. Soare ; R. Alexandrescu ; Raluca Elena Morjan (Institutionen för teknisk fysik) ; L. Gavrila-Florescu ; G. Prodan ; I. Sandu ; E. Popovici ; F. Dumitrache ; I. Voicu ; M. Scarisoreanu
Physica E-Low-Dimensional Systems & Nanostructures (1386-9477). Vol. 37 (2007), 1-2, p. 26-33.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: cargon nanotubes, catalytic LCVD, Fe-C nanocomposites, ammonia, precursor, coiled shape, CHEMICAL-VAPOR-DEPOSITION, FIELD-EMISSION, GAS, FILMS

Denna post skapades 2008-11-07. Senast ändrad 2008-11-12.
CPL Pubid: 77281


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