Please use this identifier to cite or link to this item: https://doi.org/10.1021/nl052356k
Title: Direct observation of single-walled carbon nanotube growth at the atomistic scale
Authors: Lin, M.
Tan, J.P.Y.
Boothroyd, C.
Loh, K.P. 
Tok, E.S. 
Foo, Y.-L.
Issue Date: Mar-2006
Citation: Lin, M., Tan, J.P.Y., Boothroyd, C., Loh, K.P., Tok, E.S., Foo, Y.-L. (2006-03). Direct observation of single-walled carbon nanotube growth at the atomistic scale. Nano Letters 6 (3) : 449-452. ScholarBank@NUS Repository. https://doi.org/10.1021/nl052356k
Abstract: The growth dynamics of a single-walled carbon nanotube (SWNT) is observed in real-time using an in situ ultrahigh vacuum transmission electron microscope at 650°C. SWNTs preferentially grow on smaller sized catalyst particles (diameter ≤ 6 nm) with three distinct growth regimes (incubation, growth, and passivation). All of the observed SWNTs grow via a base-growth mechanism with C diffusion on active Ni catalyst sites. Under the same experimental conditions, formation of carbon nanocages was observed on larger Ni catalyst particles. The evolution of SWNTs or nanocages is dependent on catalyst size, and this can be rationalized from both energetics and kinetics considerations. © 2006 American Chemical Society.
Source Title: Nano Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/75958
ISSN: 15306984
DOI: 10.1021/nl052356k
Appears in Collections:Staff Publications

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