Morphology and Microstructure of Graphitic Nanofibers Synthesized by the CVD Method Using Nickel-Copper as a Catalyst

Kwon Koo Cho; Bong Ki Lee; Jae Pyong Ahn

doi:10.4028/www.scientific.net/MSF.486-487.25

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HomeMaterials Science ForumMaterials Science Forum Vols. 486-487Morphology and Microstructure of Graphitic...

Morphology and Microstructure of Graphitic Nanofibers Synthesized by the CVD Method Using Nickel-Copper as a Catalyst

Abstract:

This paper describes the morphology and microstructure of graphitic nanofibers(GNFs) synthesized by the catalytic decomposition of ethylene in the presence of Ni:Cu(70wt%:30wt%) as catalyst at 550°C to 700°C. The catalyst was prepared by the coprecipitation method using aqueous solution of metal nitrates. The catalysts and the graphitic nanofibers(GNFs) were characterized by FE-SEM, HR-TEM and EDXS. The shape, composition and microstructure of the catalyst according to the synthesis temperature of graphitic nanofibers(GNFs)were changed so that it brought about the change of morphology and microstructure of graphitic nanofibers(GNFs). In particular, it should be noted that the composition change of catalysts with different synthesis temperature is one of the key factors in determining the morphology of graphitic nanofibers(GNFs)

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Materials Science Forum (Volumes 486-487)

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25-28

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.486-487.25

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Online since:

June 2005

Authors:

Kwon Koo Cho, Bong Ki Lee, Jae Pyong Ahn

Keywords:

Catalyst, Chemical Vapor Deposition (CVD), Graphitic Nanofibers, Microstructure, Morpholoy, Spiral, Straight

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