Technical Physics

, Volume 63, Issue 12, pp 1834–1839 | Cite as

Influence of a Buffer Layer on the Formation of a Thin-Film Nickel Catalyst for Carbon Nanotube Synthesis

  • S. V. BulyarskiyEmail author
  • E. V. Zenova
  • A. V. Lakalin
  • M. S. Molodenskii
  • A. A. Pavlov
  • A. M. Tagachenkov
  • A. V. Terent’ev


The formation of nanoparticles of a thin-film nickel catalyst applied on a buffer layer in the form of pure titanium, titanium oxide, or titanium nitride has been studied. It has been shown that if nanotubes are synthesized in three stages (oxidation, reduction, and growth of nanotubes), the situation may arise when the metallic catalyst becomes isolated from the surface, and hence, from the hydrocarbon flux, as a result of which the nanotube growth stops. Isolation takes place when the interface between titanium oxide and the gas phase in the reactor moves. In this case, titanium oxide goes round a nickel oxide nanoparticle and insulates it. The displacement rate of this interface and the coefficient of hydrogen diffusion in titanium dioxide have been determined.



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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • S. V. Bulyarskiy
    • 1
    Email author
  • E. V. Zenova
    • 1
  • A. V. Lakalin
    • 1
  • M. S. Molodenskii
    • 1
  • A. A. Pavlov
    • 1
  • A. M. Tagachenkov
    • 1
  • A. V. Terent’ev
    • 1
    • 2
  1. 1.Institute of Nanotechnologies for Microelectronics, Russian Academy of SciencesMoscowRussia
  2. 2.National Research University Higher School of EconomicsMoscowRussia

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