dc.creatorNascimento, APF
dc.creatorSan-Miguel, MA
dc.creatorda Silva, EZ
dc.date2014
dc.dateFEB 20
dc.date2014-07-30T19:19:19Z
dc.date2015-11-26T16:55:36Z
dc.date2014-07-30T19:19:19Z
dc.date2015-11-26T16:55:36Z
dc.date.accessioned2018-03-28T23:43:02Z
dc.date.available2018-03-28T23:43:02Z
dc.identifierPhysical Review B. Amer Physical Soc, v. 89, n. 8, 2014.
dc.identifier1098-0121
dc.identifier1550-235X
dc.identifierWOS:000332399100004
dc.identifier10.1103/PhysRevB.89.085417
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/73299
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/73299
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1277169
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThe appearance of unusually large Au-Au bond distances in linear atomic chains (LACs) of Au nanowires is commonly attributed to the presence of atomic impurities. However, the origin of those contaminants is unknown. We present a study based on density functional theory calculations using quasistatic (T = 0) and finite-temperature ab initio molecular-dynamics simulations of a possible route for the formation of atomic impurities in Au nanowires. This process starts with the adsorption of an O-2 molecule followed by a CO molecule on Au LACs, leading to the formation of an intermediate O2CO complex. Upon thermal activation at finite temperatures, the complex is able to proceed to oxidation forming a CO2 molecule and leaving an atomic O impurity in the Au LAC.
dc.description89
dc.description8
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFAEPEX-UNICAMP
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFAPESP [2010/16970-0]
dc.descriptionCNPq [304068/2011-0]
dc.descriptionCAPES [REDE NANOBIOTEC-BRASIL/ 04/2008]
dc.languageen
dc.publisherAmer Physical Soc
dc.publisherCollege Pk
dc.publisherEUA
dc.relationPhysical Review B
dc.relationPhys. Rev. B
dc.rightsaberto
dc.rightshttp://publish.aps.org/authors/transfer-of-copyright-agreement
dc.sourceWeb of Science
dc.subjectGold Nanowires
dc.subjectLarge Systems
dc.subjectCo Oxidation
dc.subjectCatalysts
dc.subjectConductance
dc.subjectAdsorption
dc.subjectClusters
dc.subjectO-2
dc.titleUnveiling the origin of oxygen atomic impurities in Au nanowires
dc.typeArtículos de revistas


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