Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 144, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4943203
Keywords
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Funding
- King Abdullah Foreign Scholarship Program (KASP-Saudi Arabia)
- National Institute of Material Science in Japan through the Flinders University-NIMS partnership
- Australian Synchrotron, Victoria, Australia [AS123/SXR/5335]
- Grants-in-Aid for Scientific Research [15H02004] Funding Source: KAKEN
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Triphenylphosphine ligand-protected Au-9 clusters deposited onto titania nanosheets show three different atomic configurations as observed by scanning transmission electron microscopy. The configurations observed are a 3-dimensional structure, corresponding to the previously proposed Au-9 core of the clusters, and two pseudo-2-dimensional (pseudo-2D) structures, newly found by this work. With the help of density functional theory (DFT) calculations, the observed pseudo-2D structures are attributed to the low energy, de-ligated structures formed through interaction with the substrate. The combination of scanning transmission electron microscopy with DFT calculations thus allows identifying whether or not the deposited Au-9 clusters have been de-ligated in the deposition process. (C) 2016 AIP Publishing LLC.
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