Journal
NANOSCALE
Volume 4, Issue 16, Pages 4947-4949Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2nr31071f
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Funding
- EPSRC
- TSB
- Advantage West Midlands (AWM)
- European Regional Development Fund (ERDF)
- Engineering and Physical Sciences Research Council [EP/E005918/1] Funding Source: researchfish
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We report real-space, atomic-resolution images of Au-20 clusters obtained with the aberration-corrected Scanning Transmission Electron Microscopy. The proposed tetrahedral (FCC segment) pyramid structure is confirmed. The clusters cycle between isomers under the electron beam in the time-lapse images acquired. Disordered variants on the high symmetry forms are commonly observed. We believe that the direct experimental identification of these kinds of atomic structure, and the fluctuations between them, is fundamental to our understanding of nanoparticle structures, as well as applications such as heterogeneous catalysis.
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