Theoretical calculations on the catalytic growth of multiwall carbon nanotube in chemical vapor deposition

2006 ◽  
Vol 327 (2-3) ◽  
pp. 434-438 ◽  
Author(s):  
Reza Darvishi Kamachali
Keyword(s):  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
Vapor Deposition ◽  
Theoretical Calculations ◽  
Chemical Vapor ◽  
Multiwall Carbon Nanotube ◽  
Catalytic Growth ◽  
Multiwall Carbon

Chemical vapor deposition of nickel-group metals on multiwall carbon nanotubes

2007 ◽  
Vol 85 (10) ◽  
pp. 645-650 ◽  
Author(s):  
Maoqi Feng ◽  
Richard J Puddephatt
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
Low Temperature ◽  
Vapor Deposition ◽  
Multiwall Carbon Nanotubes ◽  
Chemical Vapor ◽  
Pt Films ◽  
Bimetallic Films ◽  
Multiwall Carbon

Chemical vapor deposition (CVD) of Ni, Pd, and Pt films and of Ni/Pd and Pd/Pt bimetallic films on multiwall carbon nanotubes (MWCNTs) can be effected at low temperature if the nanotubes are pretreated by CVD of titanium carbide. In the absence of the pretreatment, the CVD leads to formation of isolated nanoparticles of the nickel-group metals. The metallized MWCNTs are curved or kinked, as a result of the interaction with the metal. Preliminary oxidation of the carbon nanotubes allows easier metallization, and the bending of the metallated nanotubes is not observed in this case.Key words: Chemical vapor deposition, platinum, palladium, nickel, carbon, nanotube.

Optimization of Chemical Vapor Deposition Synthesis Conditions for Multiwall Carbon Nanotube by Statistical Analysis of Experiment

2008 ◽  
Vol 55-57 ◽  
pp. 533-536
Author(s):  
P. Saiprasert ◽  
D. Koolpiruck ◽  
S. Chiangga
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Multiwall Carbon Nanotubes ◽  
Statistical Design ◽  
Chemical Vapor ◽  
Multiwall Carbon Nanotube ◽  
Synthesis Conditions ◽  
Fourier Transform Raman ◽  
Multiwall Carbon

The optimization of chemical vapor deposition synthesis conditions for multiwall carbon nanotubes (MWCNTs) was experimentally investigated. Carbon nanotubes were grown on cobalt substrate thicknesses of 20, 100 and 1000 nm at 700 and 900 0C with 2 replications. The configuration and morphology of the carbon nanotubes were investigated by scanning electron microscope and Fourier transform raman spectrometer, respectively. The tendency of the parameters was evaluated by statistical design of experiment. Observations on samples produced under our optimised production process, showed that a large number of MWCNTs bundles were produced. Diameter of MWCNTs bundles ranges between 30 and 100 nm throughout the samples. From the variance analysis of the Raman spectra we observe that the thickness of cobalt and temperature of synthesis are highly significant in which the coherence length and innermost diameter increase for either the thickness increases or the temperature decreases.

Mechanism and Kinetics of Growth Termination in Controlled Chemical Vapor Deposition Growth of Multiwall Carbon Nanotube Arrays

Nano Letters ◽  
2009 ◽  
Vol 9 (2) ◽  
pp. 738-744 ◽  
Author(s):  
Michael Stadermann ◽  
Sarah P. Sherlock ◽  
Jung-Bin In ◽  
Francesco Fornasiero ◽  
Hyung Gyu Park ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Nanotube Arrays ◽  
Multiwall Carbon Nanotube ◽  
Chemical Vapor Deposition Growth ◽  
Carbon Nanotube Arrays ◽  
Mechanism And Kinetics ◽  
Kinetics Of ◽  
Multiwall Carbon

Highly Efficient Field Emission from Carbon Nanotube−Nanohorn Hybrids Prepared by Chemical Vapor Deposition

ACS Nano ◽  
2010 ◽  
Vol 4 (12) ◽  
pp. 7337-7343 ◽  
Author(s):  
Ryota Yuge ◽  
Jin Miyawaki ◽  
Toshinari Ichihashi ◽  
Sadanori Kuroshima ◽  
Tsutomu Yoshitake ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Carbon Nanotube ◽  
Field Emission ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Highly Efficient
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