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Carbon nanotube synthesis with different support materials and catalysts
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Paper Abstract

Having remarkable characteristics, carbon nanotubes (CNTs) have attracted a lot of interest. Their mechanical, electrical, thermal and chemical properties make CNTs suitable for several applications such as electronic devices, hydrogen storage, textile, drug delivery etc. CNTs have been synthesized by various methods, such as arc discharge, laser ablation and catalytic chemical vapor deposition (CCVD). In comparison with the other techniques, CCVD is widely used as it offers a promising route for mass production. High capability of decomposing hydrocarbon formation is desired for the selected catalysts. Therefore, transition metals which are in the nanometer scale are the most effective catalysts. The common transition metals that are being used are Fe, Co, Ni and their binary alloys. The impregnation of the catalysts over the support material has a crucial importance for the CNT production. In this study, the influence of the support materials on the catalytic activity of metals was investigated. CNTs have been synthesized over alumina (Al2O3), silica (SiO2) and magnesium oxide (MgO) supported Fe, Co, Fe-Co catalysts. Catalyst – support material combinations have been investigated and optimum values for each were compared. Single walled carbon nanotubes (SWCNTs) were produced at 800°C. The duration of synthesis was 30 minutes for all support materials. The synthesized materials were characterized by thermal gravimetric analysis (TGA), Raman spectroscopy and transmission electron microscopy.

Paper Details

Date Published: 24 September 2013
PDF: 8 pages
Proc. SPIE 8814, Carbon Nanotubes, Graphene, and Associated Devices VI, 881404 (24 September 2013); doi: 10.1117/12.2023967
Show Author Affiliations
Fatih Gümüş, Istanbul Technical Univ. (Turkey)
Neslihan Yuca, Istanbul Technical Univ. (Turkey)
Nilgün Karatepe, Istanbul Technical Univ. (Turkey)

Published in SPIE Proceedings Vol. 8814:
Carbon Nanotubes, Graphene, and Associated Devices VI
Didier Pribat; Young Hee Lee; Manijeh Razeghi; Seunghyun Baik, Editor(s)

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