Carbon Nanotubes Obtained by ECC Technique with Cobalt Salt as Catalyst Precursor

Abstract:

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In this paper we report the preparation of carbon nanotubes (CNTs) by ethanol catalytic combustion (ECC) technique. We employed cobalt salt as catalyst precursors, copper plate as substrate and ethanol as carbon source. In order to have a better understanding of the growth mechanisms, we employed cobalt chloride, cobalt nitrite and cobalt sulfate as catalyst precursor to study the influence of catalysts on CNTs growth respectively. Entangled and nonseparated CNTs were aggregated together when the catalyst precursor was cobalt chloride, while straight and uniform CNTs were obtained when the catalyst precursor was cobalt sulfate. In the case of using cobalt nitrite as catalyst precursor, the CNTs tend to form helical and disordered structure. We have examined the morphology and microstructure of the obtained CNTs and discussed the growth mechanism.

Info:

Periodical:

Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

727-730

DOI:

10.4028/www.scientific.net/AMR.26-28.727

Citation:

H. D. Zhang et al., "Carbon Nanotubes Obtained by ECC Technique with Cobalt Salt as Catalyst Precursor", Advanced Materials Research, Vols. 26-28, pp. 727-730, 2007

Online since:

October 2007

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Price:

$35.00

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