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Raman and TEM studies of carbon nanotubes produced by bimetallic catalysts system

Sulaiman, Yusram and Buang, Nor Aziah and Abd. Majid, Zaiton and M. Sanip, Suhaila and Ismail, Ahmad Fauzi (2005) Raman and TEM studies of carbon nanotubes produced by bimetallic catalysts system. In: The XXII Regional Conference on Solid State Science & Technology (RCSST' 05), 18-21 Dec 2005, Kuantan, Pahang.

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Abstract

Studies were carried out on the use of various bimetallic catalyst systems for the production of carbon nanotubes (CNTs) by thermal decomposition of acetylene (C2H2). The pyrolysis of C2H2 was carried out at 700 °C. The CNTs synthesized were examined by Raman spectroscopy and transmission electron microscopy (TEM). Both analyses confirmed the presence of multi-walled carbon nanotubes (MWNTs) for all the bimetallic catalyst systems investigated. Raman spectroscopy shows that the Co-Ni supported catalyst produced CNTs with the highest IG/ID value. TEM was conducted to investigate the quality and nature of the CNTs produced. TEM observations show that the CNTs produced are multi-walled and the residual catalyst particles are located inside the tubes of the CNTs. Energy-disperse X-ray analysis (EDAX) confirmed that the residual catalysts in the CNTs are in the four of alloy.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Bimetallic catalyst, carbon nanotube, Raman spectroscopy, TEM
Subjects:T Technology > T Technology (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:5363
Deposited By: Norhani Jusoh
Deposited On:31 Mar 2008 09:11
Last Modified:01 Jun 2010 15:29

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