Characterisation of the Growth Mechanism during PECVD of Multiwalled Carbon Nanotubes

2006 ◽  
pp. 77-93 ◽  
Author(s):  
Martin S. Bell ◽  
Rodrigo G. Lacerda ◽  
Kenneth B.K. Teo ◽  
William I. Milne
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Growth Mechanism ◽  
Multiwalled Carbon

Multiwalled Carbon Nanotube Growth Mechanism on Conductive and Non-Conductive Barriers

2011 ◽  
Vol 403-408 ◽  
pp. 1201-1204 ◽  
Author(s):  
Aun Shih Teh ◽  
Daniel C.S. Bien ◽  
Rahimah Mohd Saman ◽  
Soo Kien Chen ◽  
Kai Sin Tan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Growth Mechanism ◽  
Growth Rates ◽  
Tip Growth ◽  
Chemical Vapor ◽  
Multiwalled Carbon ◽  
Co Catalyst ◽  
Carbon Nanotube Growth ◽  
Nanotube Growth

We report on the catalytic growth of multiwalled carbon nanotubes by plasma enhanced chemical vapor deposition using Ni and Co catalyst deposited on SiO2, Si3N 4,ITO and TiN Xbarrier layers; layers which are typically used as diffusive barriers of the catalyst material. Results revealed higher growth rates on conductive ITO and TiN Xas compared to non con-ductiveSiO2, and Si3N 4,barriers. Micrograph images reveal the growth mechanism for nanotubes grown on SiO2, Si3N 4 and ITO to be tip growth while base growth was observed for the TiN X barrier layer. Initial conclusion suggests that conductive diffusion barrier surfaces promotes growth rates however it is possible that multiwalled carbon nanotubes grown onSiO2, and Si3N 4,were encumbered as a result of the formation of silicide as shown in the results here.

DIAMOND NANORODS FROM CARBON NANOTUBES BY HYDROGEN PLASMA TREATMENT

2006 ◽  
Vol 05 (02n03) ◽  
pp. 307-313 ◽  
Author(s):  
J. L. GONG ◽  
L. T. SUN ◽  
D. Z. ZHU ◽  
Z. Y. ZHU ◽  
S. X. HE ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Plasma Treatment ◽  
Multiwalled Carbon Nanotubes ◽  
Growth Mechanism ◽  
Amorphous Carbon ◽  
Inner Core ◽  
Diamond Crystal ◽  
Hydrogen Plasma ◽  
Multiwalled Carbon ◽  
Sheath Structure

Single crystalline diamond nanorods with diameters of 4–8 nm and with lengths up to 200 nm have been synthesized by hydrogen plasma post-treatment of multiwalled carbon nanotubes. The diamond nanorods were identified to have a core-sheath structure with inner core being diamond crystal and outer shell being amorphous carbon. A growth mechanism for the diamond nanorods was proposed.

Effect of Multiwalled Carbon Nanotubes On Mechanical Properties of Concrete

2012 ◽  
Vol 2 (6) ◽  
pp. 166-168 ◽  
Author(s):  
Dr.T.Ch.Madhavi Dr.T.Ch.Madhavi ◽  
◽  
Pavithra.P Pavithra.P ◽  
Sushmita Baban Singh Sushmita Baban Singh ◽  
S.B.Vamsi Raj S.B.Vamsi Raj ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon

Sorption of Bisphenol A in Aqueous Solutions on Irradiated and as-Grown Multiwalled Carbon Nanotubes

2018 ◽  
Vol 69 (5) ◽  
pp. 1233-1239
Author(s):  
Raluca Madalina Senin ◽  
Ion Ion ◽  
Ovidiu Oprea ◽  
Rusandica Stoica ◽  
Rodica Ganea ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Bisphenol A ◽  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Multiwalled Carbon Nanotubes ◽  
Adsorption Process ◽  
Sorption Process ◽  
Multiwalled Carbon ◽  
Before And After ◽  
Kinetic Sorption

In this study, non-irradiated and weathered multiwalled carbon nanotubes (MWCNTs) obtained through irradiation, were studied as adsorbents for BPA, both nanomaterials being characterized before and after the adsorption process. The objectives of our investigation were to compare the characteristics of non-irradiated and irradiated MWCNTs, to evaluate the adsorption capacity of BPA by pristine and irradiated MWCNTs and to determine the variation of the kinetic, sorption and thermodynamic parameters during sorption process using both sorbents.

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