Direct visualisation, by aberration-corrected electron microscopy, of the crystallisation of bimetallic nanoparticlecatalysts

Literature Information

Publication Date 2005-10-20
DOI 10.1039/B511004A
Impact Factor 6.222
Authors

Edmund P. W. Ward, Ilke Arslan, Paul A. Midgley, Andrew Bleloch


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Abstract

Using a scanning transmission electron microscope, corrected for aberration, ultra-high resolution images of the internal structure of nanoparticle clusters, as well as the number of atoms present per cluster, may be directly determined: it is shown that individual bimetallic clusters of Ru10Pt2 have a “molecular” structure and that when they coalesce into larger entities containing ca. 200 atoms they adopt the regular crystalline, and facetted, state of a bulk metal.

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