Synthesis and structural determination of twisted MoS2 nanotubes

P. Santiago, J. A. Ascencio, D. Mendoza, M. Pérez-Alvarez, A. Espinosa, C. Reza-Sangermán, P. Schabes-Retchkiman, G. A. Camacho-Bragado, M. José-Yacamán

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20 Scopus citations

Abstract

In the present work we report the synthesis of MoS2 nanotubes with diameters greater than 10 nm using a template method. The length and properties of these nanotubes are a direct result of the preparation method. High-resolution transmission electron microscopy is used to study the structure of these highly curved entities. Molecular dynamics simulations of MoS 2 nanotubes reveal that one of the stable forms of the nanotubes is a twisted one. The twisting of the nanotubes produces a characteristic contrast in the images, which is also studied using simulation methods. The analysis of the local contrast close to the perpendicular orientation shows geometrical arrays of dots in domain-like structures, which are demonstrated to be, a product of the atomic overlapping of irregular curvatures in the nanotubes. The configuration of some of the experimentally obtained nanotubes is demonstrated to be twisted with a behavior suggesting partial plasticity.

Original languageEnglish (US)
Pages (from-to)513-518
Number of pages6
JournalApplied Physics A: Materials Science and Processing
Volume78
Issue number4
DOIs
StatePublished - Mar 2004
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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