Fabrication and atomic structure of size-selected, layered MoS2 clusters for catalysis

Martin J. Cuddy, Kenton P. Arkill, Zhi Wei Wang, Hannu Pekka Komsa, Arkady V. Krasheninnikov, Richard E. Palmer*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

26 Citations (Scopus)

Abstract

Well defined MoS2 nanoparticles having a layered structure and abundant edges would be of considerable interest for applications including photocatalysis. We report the atomic structure of MoS2 size-selected clusters with mass in a range all the way from 50 to ∼2000 MoS2 units. The clusters were prepared by magnetron sputtering and gas condensation prior to size selection and soft landing on carbon supports. Aberration-corrected scanning transmission electron microscopy (STEM) in high-angle annular dark-field (HAADF) mode reveals a layered structure and Mo-Mo spacing similar to the bulk material. The mean number of layers in these lamellar clusters increases from one to three with increasing mass, consistent with density functional theory calculations of the balance between edge energies and interlayer binding.

Original languageEnglish
Pages (from-to)12463-12469
Number of pages7
JournalNanoscale
Volume6
Issue number21
DOIs
Publication statusPublished - 22 Aug 2014

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