Effect of reaction time, weight ratio, and type of catalyst on the yield of single-wall carbon nanotubes synthesized by chemical vapor deposition of acetylene

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Dündar Tekkaya, Ezgi and Karatepe, Nilgün (2015) Effect of reaction time, weight ratio, and type of catalyst on the yield of single-wall carbon nanotubes synthesized by chemical vapor deposition of acetylene. Fullerenes, Nanotubes and Carbon Nanostructures, 23 (6). pp. 535-541. ISSN 1536-383X (Print) 1536-4046 (Online)

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Abstract

The single wall carbon nanotubes (SWCNTs) were synthesized by catalytic chemical vapor deposition of C2H2 at 800°C for 30 and 60 minutes. The transition metals of Fe, Co, Ni, V, and bimetallic mixture of Fe-Co impregnated on MgO powder substrate with weight ratios of 1:100, 5:100 and 10:100 were used as catalysts. The effects of catalyst type, weight ratio, and the reaction time on carbon yield of SWCNTs were investigated. The statistical analyses showed that the 1:100 weight ratio of Co-MgO (60 min) had the highest carbon yield (55.99%). It was also found that the reaction time enhances the carbon efficiency of all catalysts whereas increase in weight ratio lowers the carbon efficiency for Fe, V, and Fe-Co; however the carbon efficiency of Co is not affected with change in weight ratio.
Item Type: Article
Uncontrolled Keywords: carbon nanotubes; chemical vapor deposition; transition metal catalyst; acetylene
Subjects: Q Science > QD Chemistry
T Technology > T Technology (General) > T174.7 Nanotechnology
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Materials Science & Eng.
Faculty of Engineering and Natural Sciences
Depositing User: Ezgi Dündar Tekkaya
Date Deposited: 19 Dec 2014 20:57
Last Modified: 02 Aug 2019 11:12
URI: https://research.sabanciuniv.edu/id/eprint/24755

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