http://www.cnr.it/ontology/cnr/individuo/prodotto/ID167807
A Spectroscopic and ab Initio Study of the Formation of Graphite and Carbon Nanotubes from Thermal Decomposition of Silicon Carbide (Articolo in rivista)
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- Label
- A Spectroscopic and ab Initio Study of the Formation of Graphite and Carbon Nanotubes from Thermal Decomposition of Silicon Carbide (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
Levita, G; Petaccia, L; Comisso, A; Lizzit, S; Larciprete, R; Goldoni, A; De Vita, A (2008)
A Spectroscopic and ab Initio Study of the Formation of Graphite and Carbon Nanotubes from Thermal Decomposition of Silicon Carbide
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- Levita, G; Petaccia, L; Comisso, A; Lizzit, S; Larciprete, R; Goldoni, A; De Vita, A (literal)
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- American Chemical Society (ACS). (literal)
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- Titolo
- A Spectroscopic and ab Initio Study of the Formation of Graphite and Carbon Nanotubes from Thermal Decomposition of Silicon Carbide (literal)
- Abstract
- We report an experimental and first-principles study of the thermal decomposition of 6H-SiC wafers, yielding graphite on the Si-terminated face and carbon nanotubes on the C-terminated face. The asymmetry of the carbon structure formation mechanisms is rationalized in terms of the different termination geometries of the opposite SIC faces. First-principles modeling reveals that horizontal, pi-delocalized carbon structures form on the Si-terminated face. The bonding network geometry of the C-terminated face favors instead the formation of vertically oriented carbon structures, which can be interpreted as nanotube lateral wall precursors. (literal)
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