Simple and inexpensive formation of extended and ordered mono- or multilayers of highly monodispersed CoFe2O4 nanoparticles, covered by oleic acid coating, was obtained by the spin-coating method on silicon substrate. Two concentrations of nanoparticles dispersions were employed. The oleic-capped nanoparticles were used as catalysts for the growth of carbon nanotubes by ethylene CCVD.Aclose correlation of nanotube diameter with nanoparticle size has been verified. Moreover, density and length of nanotubes can be controlled by nanoparticle concentration.
Synthesis of Ordered Layers of Monodisperse CoFe2O4 Nanoparticles for Catalyzed Growth of Carbon Nanotubes on Silicon Substrate
ALTAVILLA, CLAUDIA
;SARNO, Maria;CIAMBELLI, Paolo
2009-01-01
Abstract
Simple and inexpensive formation of extended and ordered mono- or multilayers of highly monodispersed CoFe2O4 nanoparticles, covered by oleic acid coating, was obtained by the spin-coating method on silicon substrate. Two concentrations of nanoparticles dispersions were employed. The oleic-capped nanoparticles were used as catalysts for the growth of carbon nanotubes by ethylene CCVD.Aclose correlation of nanotube diameter with nanoparticle size has been verified. Moreover, density and length of nanotubes can be controlled by nanoparticle concentration.File in questo prodotto:
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