title: Direct visualisation, by aberration-corrected electron microscopy, of the crystallisation of bimetallic nanoparticle catalysts.
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.
authors.affiliation: Department of Materials Science and Metallurgy, University of Cambridge, UK. epww2@cam.ac.uk
authors.forename: Edmund P W
authors.initials: EP
authors.lastname: Ward
authors.forename: Ilke
authors.initials: I
authors.lastname: Arslan
authors.forename: Paul A
authors.initials: PA
authors.lastname: Midgley
authors.forename: Andrew
authors.initials: A
authors.lastname: Bleloch
authors.forename: John Meurig
authors.initials: JM
authors.lastname: Thomas