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dc.contributor.author
Attia, Yasser A.
dc.contributor.author
Buceta, David
dc.contributor.author
Requejo, Felix Gregorio
dc.contributor.author
Giovanetti, Lisandro Jose
dc.contributor.author
López Quintela, M. Arturo
dc.date.available
2018-06-18T17:10:08Z
dc.date.issued
2015-07
dc.identifier.citation
Attia, Yasser A.; Buceta, David; Requejo, Felix Gregorio; Giovanetti, Lisandro Jose; López Quintela, M. Arturo; Photostability of gold nanoparticles with different shapes: the role of Ag clusters; Royal Society of Chemistry; Nanoscale; 7; 26; 7-2015; 11273-11279
dc.identifier.issn
2040-3364
dc.identifier.uri
http://hdl.handle.net/11336/49011
dc.description.abstract
Anisotropic gold nanostructures prepared by the seed method in the presence of Ag ions have been used to study their photostability to low-power UV irradiation (254 nm) at room temperature. It has been observed that, whereas spheres are very stable to photoirradiation, rods and prisms suffer from photocorrosion and finally dissolve completely with the production of Au(iii) ions. Interpretation of these differences is based on the presence of semiconductor-like Ag clusters, adsorbed onto rods and prisms, able to photocorrode the Au nanoparticles, which are absent in the case of Au spheres. We further show direct evidence of the presence of Ag clusters in Au nanorods by XANES. These results confirm a previous hypothesis (J. Am. Chem. Soc., 2014, 136, 1182-1185) about the major influence of very stable small Ag clusters, not only on the anisotropic formation of nanostructures but also on their photostability.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Clusters
dc.subject
Nanoparticles
dc.subject
Xanes
dc.subject
Photostability
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Nano-materiales
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Nanotecnología
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Photostability of gold nanoparticles with different shapes: the role of Ag clusters
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-06-14T19:06:46Z
dc.identifier.eissn
2040-3372
dc.journal.volume
7
dc.journal.number
26
dc.journal.pagination
11273-11279
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Attia, Yasser A.. Universidad de Santiago de Compostela; España. Cairo University; Egipto. Taif University; Arabia Saudita
dc.description.fil
Fil: Buceta, David. Universidad de Santiago de Compostela; España
dc.description.fil
Fil: Requejo, Felix Gregorio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
dc.description.fil
Fil: Giovanetti, Lisandro Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
dc.description.fil
Fil: López Quintela, M. Arturo. Universidad de Santiago de Compostela; España
dc.journal.title
Nanoscale
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/content/articlelanding/2015/nr/c5nr01887k#!divAbstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/C5NR01887K
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