Effect of Different Catalyst Deposition Technique on Aligned Multiwalled Carbon Nanotubes Grown by Thermal Chemical Vapor Deposition
Joint Authors
Mohamed Saheed, Mohamed Shuaib
Mohamed, Norani Muti
Burhanudin, Zainal Arif
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-09
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The paper reported the investigation of the substrate preparation technique involving deposition of iron catalyst by electron beam evaporation and ferrocene vaporization in order to produce vertically aligned multiwalled carbon nanotubes array needed for fabrication of tailored devices.
Prior to the growth at 700°C in ethylene, silicon dioxide coated silicon substrate was prepared by depositing alumina followed by iron using two different methods as described earlier.
Characterization analysis revealed that aligned multiwalled carbon nanotubes array of 107.9 µm thickness grown by thermal chemical vapor deposition technique can only be achieved for the sample with iron deposited using ferrocene vaporization.
The thick layer of partially oxidized iron film can prevent the deactivation of catalyst and thus is able to sustain the growth.
It also increases the rate of permeation of the hydrocarbon gas into the catalyst particles and prevents agglomeration at the growth temperature.
Combination of alumina-iron layer provides an efficient growth of high density multiwalled carbon nanotubes array with the steady growth rate of 3.6 µm per minute for the first 12 minutes and dropped by half after 40 minutes.
Thicker and uniform iron catalyst film obtained from ferrocene vaporization is attributed to the multidirectional deposition of particles in the gaseous form.
American Psychological Association (APA)
Mohamed Saheed, Mohamed Shuaib& Mohamed, Norani Muti& Burhanudin, Zainal Arif. 2014. Effect of Different Catalyst Deposition Technique on Aligned Multiwalled Carbon Nanotubes Grown by Thermal Chemical Vapor Deposition. Journal of Nanomaterials،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1041822
Modern Language Association (MLA)
Mohamed Saheed, Mohamed Shuaib…[et al.]. Effect of Different Catalyst Deposition Technique on Aligned Multiwalled Carbon Nanotubes Grown by Thermal Chemical Vapor Deposition. Journal of Nanomaterials No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1041822
American Medical Association (AMA)
Mohamed Saheed, Mohamed Shuaib& Mohamed, Norani Muti& Burhanudin, Zainal Arif. Effect of Different Catalyst Deposition Technique on Aligned Multiwalled Carbon Nanotubes Grown by Thermal Chemical Vapor Deposition. Journal of Nanomaterials. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1041822
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1041822