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dc.contributor.authorHughes, Zak*
dc.contributor.authorWalsh, T.R.*
dc.date.accessioned2019-03-13T08:57:40Z
dc.date.accessioned2019-04-04T14:39:00Z
dc.date.available2019-03-13T08:57:40Z
dc.date.available2019-04-04T14:39:00Z
dc.date.issued15/12/2014
dc.identifier.citationHughes ZE and Walsh TR (2014) Structure of the electrical double layer at aqueous gold and silver interfaces for saline solutions. Journal of Colloid and Interface Science. 436: 99-110.
dc.identifier.urihttp://hdl.handle.net/10454/16949
dc.descriptionNo
dc.description.abstractWe report the structure of the electrical double layer, determined from molecular dynamics simulations, for a range of saline solutions (NaCl, KCl, MgCl2 and CaCl2) at both 0.16 and 0.60 mol kg(-1) on different facets of the gold and silver aqueous interfaces. We consider the Au/Ag(111), native Au/Ag(100) and reconstructed Au(100)(5×1) facets. For a given combination of metallic surface and facet, some variations in density profile are apparent across the different cations in solution, with the corresponding chloride counterion profiles remaining broadly invariant. All density profiles at the higher concentration are predicted to be very similar to their low-concentration counterparts. We find that each electrolyte responds differently to the different metallic surface and facets, particularly those of the divalent metal ions. Our findings reveal marked differences in density profiles between facets for a given metallic interface for both Mg(2+) and Ca(2+), with Na(+) and K(+) showing much less distinction. Mg(2+) was the only ion for which we find evidence of materials-dependent differences in interfacial solution structuring between the Ag and Au.
dc.description.sponsorshipVeski, Air Force Office for Scientific Research grant #FA9550-12-1-0226
dc.language.isoen
dc.subjectInterfaces
dc.subjectMolecular simulation
dc.subjectNoble metals
dc.subjectSalt solutions
dc.titleStructure of the electrical double layer at aqueous gold and silver interfaces for saline solutions
dc.status.refereedYes
dc.date.Accepted22/08/2014
dc.date.application04/09/2014
dc.typeArticle
dc.type.versionNo full-text in the repository
dc.identifier.doihttps://doi.org/10.1016/j.jcis.2014.08.045
dc.date.updated2019-03-13T08:57:42Z
dc.openaccess.statusclosedAccess


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