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Cathodoluminescence characterization of Zno/Zns nanostructures anodized under hydrodynamic conditions

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Cathodoluminescence characterization of Zno/Zns nanostructures anodized under hydrodynamic conditions

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dc.contributor.author Sanz-Marco, Arturo es_ES
dc.contributor.author Sánchez Tovar, Rita es_ES
dc.contributor.author Montes Bajo, Miguel es_ES
dc.contributor.author Fernández Domene, Ramón Manuel es_ES
dc.contributor.author Garcia-Anton, Jose es_ES
dc.date.accessioned 2019-05-09T20:28:48Z
dc.date.available 2019-05-09T20:28:48Z
dc.date.issued 2018 es_ES
dc.identifier.issn 0013-4686 es_ES
dc.identifier.uri http://hdl.handle.net/10251/120247
dc.description.abstract [EN] ZnO/ZnS nanostructures were successfully synthesized by a simple electrochemical anodization of zinc in a glycerol based electrolyte containing sulfide-ammonium fluoride. The influence of different hydrodynamic conditions and anodization potentials during anodization on the morphological and electronic properties of the obtained ZnO/ZnS nanostructures was studied. The anodized samples were characterized using confocal Raman microscopy, X-Ray Diffraction (XRD), Field Emission Scanning Electronic Microscopy (FE-SEM), cathodoluminescence (CL), and photoelectrochemical water splitting tests under standard AM 1.5 conditions. The results showed that hydrodynamic conditions and higher potentials promoted the formation of ZnO/ZnS nanotubes with both higher sulphur content and crystalline defect density, which reduces the near band edge transition value of the materials and improves the photoelectrochemical activity for water splitting. Additionally, the higher photocurrent densities for water splitting were obtained for the samples anodized at the highest anodization potential and under hydrodynamic conditions, increasing in a 71% for the nanostructures anodized at 1000 rpm when the anodization potential changes from 20 to 40 V. (c) 2018 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship Authors thank to the financial support to the Ministerio de Economia y CompetitividadMinisterio de Economia y Competitividad (Project code: CTQ2016-79203-R) and for the co-finance by the European Social Fund and to Dr. Luis Villaescusa Alonso for providing technical support with the XRD. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation AEI/CTQ2016-79203-R es_ES
dc.relation.ispartof Electrochimica Acta es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Anodization es_ES
dc.subject Cathodoluminescence es_ES
dc.subject Photocatalyst es_ES
dc.subject Water splitting es_ES
dc.subject ZnO/ZnS nanostructure es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Cathodoluminescence characterization of Zno/Zns nanostructures anodized under hydrodynamic conditions es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.electacta.2018.03.046 es_ES
dc.rights.accessRights Embargado es_ES
dc.date.embargoEndDate 2020-04-01 es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.description.bibliographicCitation Sanz-Marco, A.; Sánchez Tovar, R.; Montes Bajo, M.; Fernández Domene, RM.; Garcia-Anton, J. (2018). Cathodoluminescence characterization of Zno/Zns nanostructures anodized under hydrodynamic conditions. Electrochimica Acta. 269:553-559. https://doi.org/10.1016/j.electacta.2018.03.046 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1016/j.electacta.2018.03.046 es_ES
dc.description.upvformatpinicio 553 es_ES
dc.description.upvformatpfin 559 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 269 es_ES
dc.relation.pasarela 378176 es_ES
dc.contributor.funder Agencia Estatal de Investigación es_ES


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