Development of Carbon Nanostructures in an Intermediate Prepared from Sol-Gel Process

Abstract:

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We report the observation of the carbon nanostructures simply obtained from the sol-gel process using zirconium alkoxide with subsequent heat-treatment. A Raman study showed that the well-defined D and G active modes in multi-walled carbon nanotube similarly appeared in the sample prepared at 350  and 400 . Those disappeared when the sample was heat-treated above 450 , at which its phase fully transformed to zirconia. We observed through HRTEM that either sphere or tube-like carbon nanostructure appeared dispersedly or in a cluster among the oxide aggregates at 350  and 400 . Our study demonstrated that both of the two carbon nanostructures occurred in an intermediate related to carbonization, which may exist during the heat-treatment even in air

Info:

Periodical:

Solid State Phenomena (Volumes 124-126)

Edited by:

Byung Tae Ahn, Hyeongtag Jeon, Bo Young Hur, Kibae Kim and Jong Wan Park

Pages:

775-778

DOI:

10.4028/www.scientific.net/SSP.124-126.775

Citation:

K. S. Han and T. G. Ko, "Development of Carbon Nanostructures in an Intermediate Prepared from Sol-Gel Process", Solid State Phenomena, Vols. 124-126, pp. 775-778, 2007

Online since:

June 2007

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$35.00

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