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Fluidized bed chemical vapor deposition synthesis of carbon nanotubes using different Fe-Co/Alumina catalytic powders


Citation

Ahmadun, Fakhru'l-Razi and Danafar, Firoozeh and Awang Biak, Dayang Radiah and Mohd Salleh, Mohamad Amran (2012) Fluidized bed chemical vapor deposition synthesis of carbon nanotubes using different Fe-Co/Alumina catalytic powders. Fullerenes, Nanotubes and Carbon Nanostructures, 20 (3). pp. 266-282. ISSN 1536-383X; ESSN: 1536-4046

Abstract / Synopsis

Catalytic particles, Iron-Cobalt supported on Alumina, with different metal compositions were investigated in fluidized bed chemical vapor deposition of Ethanol at 600°C to produce carbon nanotubes (CNTs). The characteristics of catalytic particles as well as product were studied using different analytical techniques. Results indicated that the dispersion of metallic nanoparticles was higher when small amounts of two kinds of metal were used. However, lowering of metal content was not always favored with respect to process efficiency. This study proved atomic ratio of the active metals in bimetallic catalyst is not an accurate specification, and mass ratio of the metals should be considered. Also, it was demonstrated that the characteristics of catalytic particles, such as pore structure and their size as well as distribution of the metallic nanoparticles, need to be suitably modified to get the desired quality and quantity of CNTs.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: 10.1080/1536383X.2010.542594
Publisher: Taylor & Francis
Keywords: Catalytic particles; Chemical vapor deposition; CNT; Fluidized bed; Synthesis
Depositing User: Nabilah Mustapa
Date Deposited: 06 Apr 2016 10:44
Last Modified: 06 Apr 2016 10:44
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1080/1536383X.2010.542594
URI: http://psasir.upm.edu.my/id/eprint/37849
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