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Issue 21, 2014
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Fabrication and atomic structure of size-selected, layered MoS2 clusters for catalysis

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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.

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

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Publication details

The article was received on 29 Jul 2014, accepted on 20 Aug 2014 and first published on 22 Aug 2014


Article type: Communication
DOI: 10.1039/C4NR04317K
Citation: Nanoscale, 2014,6, 12463-12469
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    Fabrication and atomic structure of size-selected, layered MoS2 clusters for catalysis

    M. J. Cuddy, K. P. Arkill, Z. W. Wang, H. Komsa, A. V. Krasheninnikov and R. E. Palmer, Nanoscale, 2014, 6, 12463
    DOI: 10.1039/C4NR04317K

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