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Varieties of nanostructured carbon grown by expanding radiofrequency plasma beam

S. VIZIREANU1, B. MITU1, G. DINESCU1,* , L. NISTOR2, C. GHICA2, A. MARALOIU2, M. STANCU3, G. RUXANDRA3

Affiliation

  1. National Institute for Laser, Plasma and Radiation Physics, Magurele, Bucharest, 077125 Romania
  2. National Institute for Materials Physics, Magurele, Bucharest, 077125 Romania
  3. Petroleum Gas University of Ploiesti, Physics Department, Bucharest Blvd. 39, 100680 Ploiesti, Romania

Abstract

Results regarding the growth of carbon nanostructures by using a low-pressure expanding radiofrequency plasma jet are reported. The growth was performed in an argon plasma injected with acetylene precursor, in the presence of ammonia or hydrogen, on a substrate covered with nickel or cobalt catalysts. Various forms of nanostructured carbon material were obtained, depending on the catalyst size, ammonia or hydrogen / acetylene ratio and substrate temperature. The results exemplified in the paper describe nickel nanoparticles coated in highly ordered graphite shells, granular carbon, two dimensional carbon nanoflakes, nanowires and nanorods..

Keywords

Carbon nanostructures, Plasma deposition, Expanding Radiofrequency plasmas.

Submitted at: Nov. 14, 2006
Accepted at: June 15, 2007

Citation

S. VIZIREANU, B. MITU, G. DINESCU, L. NISTOR, C. GHICA, A. MARALOIU, M. STANCU, G. RUXANDRA, Varieties of nanostructured carbon grown by expanding radiofrequency plasma beam, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 6, pp. 1649-1652 (2007)