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Title
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Atomic-scale determination of surface facets in gold nanorods
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Author
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Abstract
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| It is widely accepted that the physical properties of nanostructures depend on the type of surface facets1, 2. For Au nanorods, the surface facets have a major influence on crucial effects such as reactivity and ligand adsorption and there has been controversy regarding facet indexing3, 4. Aberration-corrected electron microscopy is the ideal technique to study the atomic structure of nanomaterials5, 6. However, these images correspond to two-dimensional (2D) projections of 3D nano-objects, leading to an incomplete characterization. Recently, much progress was achieved in the field of atomic-resolution electron tomography, but it is still far from being a routinely used technique. Here we propose a methodology to measure the 3D atomic structure of free-standing nanoparticles, which we apply to characterize the surface facets of Au nanorods. This methodology is applicable to a broad range of nanocrystals, leading to unique insights concerning the connection between the structure and properties of nanostructures. |
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Language
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English
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Source (journal)
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Nature materials. - London, 2002, currens
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Publication
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London
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2012
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ISSN
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1476-1122
[print]
1476-4660
[online]
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Volume/pages
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11
:11
(2012)
, p. 930-935
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ISI
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000310434600015
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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