• 1
  • 2
  • 5
  • 6
  • 3
  • 4
IPM
30
YEARS OLD

“School of Physic”

Back to Papers Home
Back to Papers of School of Physic

Paper   IPM / Physic / 12148
School of Physics
  Title:   Ni nanoparticle catalyzed growth of MWCNTs on Cu NPs @ a-C:H substrate
  Author(s): 
1.  T. Ghodselahi
2.  S. Solaymani
3.  M. Akbarzadeh Pasha
4.  M. A. Vesaghi
  Status:   Published
  Journal: Eur. Phys. J. D
  Vol.:  66
  Year:  2012
  Pages:   299
  Supported by:  IPM
  Abstract:
Ni-Cu NPs @ a-C:H thin films with different concentration of Cu content were prepared by co-deposition of RF-sputtering and RF-Plasma Enhanced Chemical Vapor Deposition (RF-PECVD) from acetylene gas and Cu and Ni targets. The prepared samples were used as catalysts for growth of carbon nanotubes (CNTs) from liquid petroleum gas (LPG) at 825 ?C by Thermal Chemical Vapor Deposition (TCVD). Catalyst layer were characterized by RBS, AFM, UV-Visible. The results indicate that the growth rate of CNTs is improved by adding Cu@ a:C:H under layer to Ni NPs and Cu content of under layer dictate morphology of surface of catalyst layer and consequently dictate average sizes of grown CNTs. Furthermore optical and electrical properties of catalyst layer explain effect Cu NPs @ a-C:H under layer on catalyst properties of Ni NPs. Therefore CNTs growth can be manipulated by the selection suitable Cu NPs @ a-C:H under layer.

Download TeX format
back to top
Clients Logo
Clients Logo
Clients Logo
Clients Logo
Clients Logo
Clients Logo
Clients Logo
Clients Logo
scroll left or right