We present a variety of non-planar graphitic nanostructures selectively generated in a modified Hot-Filament Chemical Vapour Deposition (HF-CVD) apparatus, using purpose-synthesized amorphous carbon nanoparticles or graphite powders as solid state precursor. The employed methodologies enable to successfully synthesize homogeneous and well organized deposits of single- and multi-walled carbon nanotubes, onion-like nanostructures, and nanotube bundles coated by nano-sized diamond grains. Variations in the morphological aspect of such non-planar graphite-based nanostructures are observed changing the experimental conditions: the solid state reactants, the filament and substrate temperatures, the catalyst concentration, and the atomic hydrogen flux over the substrate play key roles in the phenomenon. (c) 2005 WILEY-NCH Verlag GmbH & Co. KGaA, Weinheim.
Nanocrystalline non-planar carbons: Growth of carbon nanotubes and curled nanostructures / S., Orlanducci; A., Fiori; E., Tamburri; V., Sessa; M. L., Terranova; Rossi, Marco. - In: CRYSTAL RESEARCH AND TECHNOLOGY. - ISSN 0232-1300. - STAMPA. - 40:10-11(2005), pp. 928-931. (Intervento presentato al convegno 34th Annual Conference of the Italian-Association-of-Crystallography tenutosi a Rome, ITALY nel SEP 26-29, 2004) [10.1002/crat.200410461].
Nanocrystalline non-planar carbons: Growth of carbon nanotubes and curled nanostructures
ROSSI, Marco
2005
Abstract
We present a variety of non-planar graphitic nanostructures selectively generated in a modified Hot-Filament Chemical Vapour Deposition (HF-CVD) apparatus, using purpose-synthesized amorphous carbon nanoparticles or graphite powders as solid state precursor. The employed methodologies enable to successfully synthesize homogeneous and well organized deposits of single- and multi-walled carbon nanotubes, onion-like nanostructures, and nanotube bundles coated by nano-sized diamond grains. Variations in the morphological aspect of such non-planar graphite-based nanostructures are observed changing the experimental conditions: the solid state reactants, the filament and substrate temperatures, the catalyst concentration, and the atomic hydrogen flux over the substrate play key roles in the phenomenon. (c) 2005 WILEY-NCH Verlag GmbH & Co. KGaA, Weinheim.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
