Carbon nanotube synthesis with different support materials and catalysts

Fatih Gümüş; Neslihan Yuca; Nilgün Karatepe

doi:10.1117/12.2023967

24 September 2013 Carbon nanotube synthesis with different support materials and catalysts

Fatih Gümüş, Neslihan Yuca, Nilgün Karatepe

Proceedings Volume 8814, Carbon Nanotubes, Graphene, and Associated Devices VI; 881404 (2013) https://doi.org/10.1117/12.2023967
Event: SPIE NanoScience + Engineering, 2013, San Diego, California, United States

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.

Citation Download Citation

Fatih Gümüş, Neslihan Yuca, and Nilgün Karatepe "Carbon nanotube synthesis with different support materials and catalysts", Proc. SPIE 8814, Carbon Nanotubes, Graphene, and Associated Devices VI, 881404 (24 September 2013); https://doi.org/10.1117/12.2023967

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