In Situ Observation of Nucleation and Growth of Carbon Nanotubes from Iron Carbide Nanoparticles
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ABSTRACTNucleation and growth processes of carbon nanotubes (CNTs) in iron catalyzed chemical vapor deposition (CVD) have been observed by means of in-situ environmental transmission electron microscopy. Our atomic scale observations demonstrate that solid state iron carbide (Fe3C) nanoparticles act as catalyst for the CVD growth of CNTs. Iron carbide nanoparticles are structurally fluctuated in CVD condition. Growth of CNTs can be simply explained by bulk diffusion of carbon atoms since nanoparticles are carbide.
1986 ◽
Vol 44
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pp. 500-501
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2000 ◽
Vol 72
(1-2)
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pp. 209-219
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Keyword(s):
2001 ◽
Vol 203
(1)
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pp. 40-46
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