Modified fluidised floating catalyst thermal CVD method for preparing carbon nanotubes using Fe/Co/Al

Authors: Azira, A.A.1; Zainal, N.F.A.2; Nik, S.F.2; Khusaimi, Z.2; Mohamad, F.3; Kudin, T.I.T.2; Soga, T.4; Abdullah, S.3; Rusop, M.5

Source: Materials Research Innovations, Volume 13, Number 3, September 2009 , pp. 182-184(3)

Publisher: Maney Publishing

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Abstract:

Carbon nanotubes (CNTs) have been successfully prepared at a low temperature of 650°C by using the fluidised floating catalyst method. Optimum concentration for Fe/Co/Al has been found to be around 0·75% for the best yield. Carbon nanotubes are produced from the evaporation of part of the precursor (camphor oil) which decomposes in situ and aggregates on the metal alloy catalyst particles present in the evaporating boat. Since the metallic alloy was obtained by calcining the respective nitrates, it is expected to have residual entrapped nitrogen which may bond with the depositing CNT. Fourier transmission infrared spectra confirm the presence of nitrogen in the prepared nanotubes which is stipulated to be embedded on the carbon surface in the form of C-N bonding instead of intercalating within the nanotubes.

Keywords: CARBON NANOTUBES; FLUIDISED FLOATING CATALYST METHOD

Document Type: Research article

DOI: 10.1179/143307509X437563

Affiliations: 1: NANO-SciTech Center, Institute of Science, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia;, Email: aziraaziz@yahoo.com 2: NANO-SciTech Center, Institute of Science, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia 3: Solar Cell Laboratory, Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia 4: Nagoya Institute of Technology, Nagoya 466 8555, Showa-ku, Gokisocho, Japan 5: NANO-SciTech Center, Institute of Science, Solar Cell Laboratory, Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia

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