Structural transformation of tungsten oxide nanourchins into IF-WS 2 nanoparticles: An aberration corrected STEM study

Francis Leonard-Deepak, Carlos Fernando Castro-Guerrero, Sergio Mejía-Rosales, Miguel José-Yacamán

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

IF-WS2 nanoparticles synthesized starting from tungsten oxide nanourchins have been investigated by using aberration corrected scanning transmission electron microscopy (Cs-STEM). The synthesis process produced IF-WS2 nanoparticles of two different and well differentiated ranges of size. High resolution HAADF-STEM images and their comparison with simulated STEM micrographs reveal the predominance of stacking of the type 1T close to the border of the structure; the observation of this kind of stacking, observed previously in IF-MoS2 but never reported before in the case of the IF-WS2 nanostructures, adds a new dimension to the existing understanding of structure and stacking in the case of the nanostructures of transition metal chalcogenides.

Original languageEnglish (US)
Pages (from-to)5076-5082
Number of pages7
JournalNanoscale
Volume3
Issue number12
DOIs
StatePublished - Dec 2011
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)

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