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Effect of Addition of Ni metal catalyst onto the Co and Fe supported catalysts for the formation of carbon nanotubes

Buang, Nor Aziah and Abd. Majid, Zaiton and Sulaiman, Yusran and M. Sanip, Suhaila and Ismail, Ahmad Fauzi (2006) Effect of Addition of Ni metal catalyst onto the Co and Fe supported catalysts for the formation of carbon nanotubes. Journal of porous material, 13 (3). pp. 331-334. ISSN 1234-4567

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Official URL: http://dx.doi.org/10.1007/s10934-006-8026-1

Abstract

Production of novel porous material is a major target in current material science research due to its wide applications. As carbon nanotube (CNTs) is a one dimensional hollow structure it is also one of the promising materials in applications ranging from electronics to hydrogen storage medium. Catalytic chemical vapor deposition (CCVD) is a method whereby CNTs can be produced in large amount. Thus, in this work, we have synthesized CNTs via pyrolysis of acetylene using various supported transition-metal catalysts in a fixed-bed reactor. Scanning electron microscope (SEM) and transmission electron microscope (TEM) were used to investigate the CNTs structure. The structures of nanotubes formed by acetylene pyrolysis were dependent on the catalysts used. Itwas found that alumina supported Ni/Fe catalyst inhibited the formation of CNTs growth while alumina supported Ni/Co catalyst gave high density of CNTs. However, nanotubes grown over alumina supported Ni/Fe catalyst were less dense due to the deactivation of the catalyst at the early stage of the pyrolysis process

Item Type:Article
Uncontrolled Keywords:Carbon nanotubes, Supported catalysts, SEM, TEM
Subjects:Q Science > QD Chemistry
Divisions:Science
ID Code:5681
Deposited By: Kamariah Mohamed Jong
Deposited On:11 Jun 2008 05:00
Last Modified:01 Jun 2010 15:33

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