Chemical analysis of the superatom model for sulfur-stabilized gold nanoparticles

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Show simple item record Reimers Jeffrey en_US Wang Yun en_US Cankurtaran Burak en_US Ford Michael en_US
dc.contributor.editor en_US 2012-02-02T11:12:31Z 2012-02-02T11:12:31Z 2010 en_US
dc.identifier 2010005833 en_US
dc.identifier.citation Reimers Jeffrey et al. 2010, 'Chemical analysis of the superatom model for sulfur-stabilized gold nanoparticles', Journal of the American Chemical Society, American Chemical Society, Washington D.C., USA en_US
dc.identifier.issn 0002-7863 en_US
dc.identifier.other C5 en_US
dc.description.abstract The superatom model for nanoparticle structure is shown to be inadequate for the prediction of the thermodynamic stability of gold nanoparticles. The observed large HOMO-LUMO gaps for stable nanoparticles predicted by this model are, for sulfur-stabilized gold nanoparticles, attributed to covalent interactions of the metal with thiyl adsorbate radicals rather than ionic interactions with thiolate adsorbate ions, as is commonly presumed. In particular, gold adatoms in the stabilizing layer are shown to be of Au(0) nature, subtle but significantly different from the atoms of the gold core owing to the variations in the proportion of gold-gold and gold-sulfur links that form. These interactions explain the success of the superatom model in describing the electronic structure of both known and informatory nanoparticle compositions. Nanoparticle reaction energies are, however, found not to correlate with the completion of superatom shells. en_US
dc.language en_US
dc.publisher American Chemical Society en_US
dc.relation.hasversion Accepted manuscript version
dc.relation.isbasedon en_US
dc.rights This document is the Accepted Manuscript version of a Published Work that appeared in final form in J. Am. Chem. Soc., 2010, 132 (24), pp 8378–8384, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work,
dc.title Chemical analysis of the superatom model for sulfur-stabilized gold nanoparticles en_US
dc.parent Journal of the American Chemical Society en_US
dc.journal.volume 132 en_US
dc.journal.number 24 en_US
dc.publocation Washington D.C., USA en_US
dc.identifier.startpage 8378 en_US
dc.identifier.endpage 8384 en_US SCI.Physics and Advanced Materials en_US
dc.conference Verified OK en_US
dc.for 030600 en_US
dc.personcode 0000071254;0000068210;024710;020323 en_US
dc.percentage 000100 en_US Physical Chemistry (incl. Structural en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords NA en_US
dc.staffid en_US
utslib.copyright.status Open Access 2015-04-15 12:23:47.074767+10

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