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Type: Artigo de periódico
Title: Prediction Of Ordered Phases Of Encapsulated C60, C70, And C78 Inside Carbon Nanotubes.
Author: Troche, Karla S
Coluci, Vitor R
Braga, Scheila F
Chinellato, David D
Sato, Fernando
Legoas, Sergio B
Rurali, Riccardo
Galvão, Douglas S
Abstract: We report the first detailed fully atomistic molecular dynamics study of the encapsulation of symmetric (C(60)) and asymmetric fullerenes (C(70) and C(78)) inside single-walled carbon nanotubes of different diameters. Different ordered phases have been found and shown to be tube diameter dependent. Rotational structural disorder significantly affecting the volume fraction of the packing was observed for the molecular arrangements of asymmetric fullerenes. Although these effects make more difficult the existence of ordered phases, our results showed that complex packing arrangements (very similar to the ones obtained for C(60)) are also possible for C(70) and C(78). Comparisons with results from continuum and hard-sphere models, ab initio electronic structure calculations, and simulations of the high-resolution transmission electron microscopy images of the obtained fullerene packing phases are also presented.
Subject: Computer Simulation
Macromolecular Substances
Models, Chemical
Models, Molecular
Molecular Conformation
Nanotubes, Carbon
Phase Transition
Citation: Nano Letters. v. 5, n. 2, p. 349-55, 2005-Feb.
Rights: fechado
Identifier DOI: 10.1021/nl047930r
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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