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Authordc.contributor.authorDíaz Valenzuela, Carlos 
Authordc.contributor.authorValenzuela, M. L. 
Authordc.contributor.authorGarcía, C. 
Authordc.contributor.authorCampa, R. de la 
Authordc.contributor.authorPresa Soto, A. 
Admission datedc.date.accessioned2018-06-07T20:15:07Z
Available datedc.date.available2018-06-07T20:15:07Z
Publication datedc.date.issued2017
Cita de ítemdc.identifier.citationMaterials Letters 209 (2017) 111–114es_ES
Identifierdc.identifier.other10.1016/j.matlet.2017.07.112
Identifierdc.identifier.urihttps://repositorio.uchile.cl/handle/2250/148717
Abstractdc.description.abstractWe herein reports the solid-state synthesis of pure and doped lanthanide oxides by using polymeric materials (chitosan and polystyrene-co-poly(4-vinylpyridine), PS-co-P4VP) as a solid template. Lanthanide nanomaterials are prepared in two-step methodology combining both solution and solid procedures. The first involves the synthesis of macromolecular complexes Chitosan.[M(NO3)(3)//M'(NO3)(3)] and PS-co-P4VP.[M(NO3)(3)//M'(NO3)(3)] (M = La, Pr; M' = Eu); and the second consists in the pyrolysis at 800 degrees C of the as-prepared solid macromolecular complexes. The pyrolytic products were characterized by X-ray diffraction, SEM-EDS, TEM, and HR-TEM. Whereas similar particle size distribution in average (ca. 25 nm) was observed with both polymer templates, a higher degree of crystallinity was obtained by using PS-co-P4VP. Importantly, the emission luminescent intensity of the doped pyrolytic oxides, La2O3//Eu2O3 and PrO1,83//Eu2O3, is not quenched despite the presence of dopant. Thus, the as-prepared doped oxides exhibit an enhanced Eu3+ emission originated from the D-5(0) -> F-7(n) (n = 1, 2, 3, 4) transitions, which is more intense for the PS-co-P4VP template. This synthetic methodology base on the pyrolysis of polymeric complexes can be considered as a general and straightforward methodology leading to pure and Eu3+-doped nanostructured lanthanide oxide.es_ES
Patrocinadordc.description.sponsorshipFondecyt 1160241 FICYT SV-PA-13-ECOEMP-83 FC-15-GRUPIN14-106 Universidad de Oviedo UNOV-13-EMERG-GIJON-08 MINECO CTQ2014-56345-Pes_ES
Lenguagedc.language.isoenes_ES
Publisherdc.publisherElsevieres_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
Sourcedc.sourceMaterials Letterses_ES
Keywordsdc.subjectPolymer templatedes_ES
Keywordsdc.subjectLanthanide oxidees_ES
Keywordsdc.subjectChitosanes_ES
Keywordsdc.subjectEuropium dopedes_ES
Títulodc.titleSolid-state synthesis of pure and doped lanthanide oxide nanomaterials by using polymer templates. Study of their luminescent propertieses_ES
Document typedc.typeArtículo de revista
Catalogueruchile.catalogadortjnes_ES
Indexationuchile.indexArtículo de publicación ISIes_ES


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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile