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The TCVD growth of CNTs over copper-silver-palladium nanoparticles prepared by DC magnetron sputtering

Rezaee, S ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.12693/APhysPolA.137.1075
  3. Publisher: Polish Academy of Sciences , 2020
  4. Abstract:
  5. In this study, we investigate the use of catalytic copper-silver-palladium substrates for the growth of multiwalled carbon nanotubes via the thermal chemical vapor deposition. These layers are comprised of nanocrystals of Cu2O, CuO, Ag, Pd, Cu, and PdO and were grown using a DC magnetron sputtering method. Scanning electron microscopy characterizations confirmed the significant growth of carbon nanotubes on the catalytic layer. A comparison of the growth of nanotubes indicated that the thickness of the catalytic layers has a significant impact on the quality and the diameter of the carbon nanotubes. Two major peaks were seen in the Raman spectrum. The formation of graphite multiwalled nanotubes and the presence of defects in the graphene-like hexagonal disordered carbons were confirmed by the appearance of the G band (graphite band) and the D band (disorder-induced band), respectively. The ratio of the intensities of these bands, I(G)/I(D), indicated a good graphite structural quality. © 2020 Polish Academy of Sciences. All rights reserved
  6. Keywords:
  7. Chemical vapor deposition ; Copper oxides ; Graphite ; Magnetron sputtering ; Nanotubes ; Oxide minerals ; Palladium ; Palladium compounds ; Scanning electron microscopy ; Silver compounds ; Silver nanoparticles ; Catalytic layers ; Dc magnetron sputtering ; Disordered carbon ; Graphene likes ; Multi-walled nanotubes ; Silver palladiums ; Structural qualities ; Thermal chemical vapor deposition ; Multiwalled carbon nanotubes (MWCN)
  8. Source: Acta Physica Polonica A ; Volume 137, Issue 6 , 2020 , Pages 1075-1079
  9. URL: http://przyrbwn.icm.edu.pl/APP/PDF/137/app137z6p12.pdf