Enhanced selectivity towards O2 and H2 dissociation on ultrathin Cu films on Ru(0001)

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dc.contributor.author Minniti, Marina
dc.contributor.author Miranda, Rodolfo
dc.contributor.author Farías, Daniel
dc.contributor.author Perna, Paolo
dc.contributor.other UAM. Departamento de Física de la Materia Condensada es_ES
dc.date.accessioned 2015-03-17T15:12:38Z
dc.date.available 2015-03-17T15:12:38Z
dc.date.issued 2012-08-21
dc.identifier.citation Journal of Chemical Physics 137.7 (2012): 074706 es_ES
dc.identifier.issn 0021-9606 (print) es_ES
dc.identifier.issn 1089-7690 (online) es_ES
dc.identifier.uri http://hdl.handle.net/10486/664618
dc.description The following article appeared in Journal of Chemical Physics 137.7 (2012): 074706 and may be found at http://scitation.aip.org/content/aip/journal/jcp/137/7/10.1063/1.4746942 en_US
dc.description.abstract The reactivity of Cu monolayer (ML) and bilayer films grown on Ru(0001) towards O2 and H2 has been investigated. O2 initial sticking coefficients were determined using the King and Wells method in the incident energy range 40-450 meV, and compared to the corresponding values measured on clean Ru(0001) and Cu(111) surfaces. A relative large O2 sticking coefficient (∼0.5-0.8) was measured for 1 ML Cu and even 2 ML Cu/Ru(0001). At low incident energies, this is one order of magnitude larger than the value observed on Cu(111). In contrast, the corresponding reactivity to H2 was near zero on both Cu monolayer and bilayer films, for incident energies up to 175 meV. Water adsorption on 2 ML Cu/Ru(0001) was found to behave quite differently than on the Ru(0001) and Cu(111) surfaces. Our study shows that Cu/Ru(0001) is a highly selective system, which presents a quite different chemical reactivity towards different species in the same range of collision energies en_US
dc.description.sponsorship The authors gratefully acknowledge the financial support by the Ministerio de Educación y Ciencia through projects CONSOLIDER-INGENIO 2010 on Molecular Nanoscience and FIS2007-61114 and Comunidad de Madrid through the program NANOMAGNET S-0505/MAT/0194. P.P. acknowledges support through the Marie Curie AMAROUT EU action and the Spanish MICINN “Juan de la Cierva” contract en_US
dc.format.extent 6 pag. en
dc.format.mimetype application/pdf es_ES
dc.language.iso eng en
dc.publisher American Institute of Physics en_US
dc.relation.ispartof Journal of Chemical Physics es_ES
dc.rights © 2012 American Institute of Physics en_US
dc.title Enhanced selectivity towards O2 and H2 dissociation on ultrathin Cu films on Ru(0001) en_US
dc.type article en
dc.subject.eciencia Física es_ES
dc.relation.publisherversion http://dx.doi.org/10.1063/1.4746942 es_ES
dc.identifier.doi 10.1063/1.4746942 es_ES
dc.identifier.publicationfirstpage 074706 es_ES
dc.identifier.publicationissue 7 es_ES
dc.identifier.publicationlastpage 074706 es_ES
dc.identifier.publicationvolume 137 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion en
dc.rights.accessRights openAccess en
dc.authorUAM Minniti , Marina (264368)


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