NDLI: Parametric Investigation of the Kinetics of Growth of Carbon-Nanotube Arrays on Iron Nanoparticles in the Process of Chemical Vapor Deposition of Hydrocarbons

Content Provider	Springer Nature Link
Author	Futko, S. I. Shulitski, B. G. Labuv, V. A. Ermolaevaa, E. M.
Copyright Year	2015
Abstract	On the basis of the kinetic model of synthesis of carbon nanotubes on iron nanoparticles in the process of chemical vapor deposition of hydrocarbons, the parametric dependences of characteristics of arrays of vertically oriented nanotubes on the temperature of their synthesis, the concentration of acetylene in a reactor, and the diameter of the catalyst nanoparticles were investigated. It is shown that the maximum on the temperature dependence of the rate of growth of carbon nanotubes, detected in experiments at a temperature of ~700oC is due to the competing processes of increasing the catalytic activity of iron nanoparticles and decreasing the acetylene concentration because of the signifi cant gas-phase decomposition of acetylene in the reactor before it enters the substrate with the catalyst. Our calculations have shown that the indicated maximum arises near the transition point separating the low-temperature region where multiwall nanotubes are predominantly synthesized from the higher-temperature region of generation of single-wall nanotubes in the process of chemical vapor deposition of hydrocarbons.
Starting Page	364
Ending Page	373
Page Count	10
File Format	PDF
ISSN	10620125
Journal	Journal of Engineering Physics and Thermophysics
Volume Number	88
Issue Number	2
e-ISSN	1573871X
Language	English
Publisher	Springer US
Publisher Date	2015-04-24
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	carbon nanotubes chemical vapor deposition array of carbon nanotubes iron nanoparticles heterogeneous catalysis transition metals hydrocarbons Engineering Thermodynamics, Heat and Mass Transfer Thermodynamics Industrial Chemistry/Chemical Engineering Statistical Physics, Dynamical Systems and Complexity Mechanics
Content Type	Text
Resource Type	Article
Subject	Engineering Condensed Matter Physics

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