Publication:
Semiconductor-metal core-shell nanostructures by colloidal heterocoagulation in aqueous medium

Simple item page
dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnología de Polvoses
dc.contributor.authorDios Pérez, Miguel de
dc.contributor.authorGonzález, Z.
dc.contributor.authorGordo Odériz, Elena
dc.contributor.authorFerrari, Begoña
dc.date.accessioned2016-06-16T12:41:28Z
dc.date.available2018-10-02T22:00:06Z
dc.date.issued2016-10-01
dc.description.abstractIn contrast to complex syntheses for the preparation of colloidal nanocomposites in a core-shell structure proposed in the literature, we present herein a facile colloidal route based on a heterocoagulation process promoted by the electrostatic interaction among ceramic NiO nanoplatelets and metallic Ni nanoparticles (NPs). Before the heterocoagulation process, NiO and Ni were synthetized separately in presence of ultrasound, by chemical precipitation and chemical reduction of the same nickel precursor, respectively. After that, NiO-Ni core-shell nanostructures were prepared forcing the electrostatic interaction among surfaces in aqueous medium. The surface charge balances of both types of particles were tuned effectively by adjusting the pH in a free-additives suspension. For the surface modification of NiO by Ni, the ceramic suspensions maintain a positive zeta potential at pH 9, while the surface of metallic particles is negatively charged. Then the uniform coating of NiO platelets, by the electrostatically induced coagulation with Ni NPs, was favors. The degree of coverage and the formation of NiO-Ni core-shell nanostructures were followed referring the evolution of zeta potential with the geometric calculation in terms of size and morphology of both nanoparticles, and then corroborated by field emission scanning electron microscopy (FESEM).en
dc.description.sponsorshipThe authors acknowledge the support of the projects S2013/MIT-2862 and MAT2012–38650-02–01, MAT2012–38650-C02–02. M. de Dios acknowledges MINECO through the grant FPI-2013 and Dr. Z González acknowledges to MINECO through the grant PTQ-13–05985.en
dc.format.extent9
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationMaterials letters, October 2016, vol. 180, pp. 327–331en
dc.identifier.doi10.1016/j.matlet.2016.05.179
dc.identifier.issn0167-577X
dc.identifier.publicationfirstpage327
dc.identifier.publicationlastpage331
dc.identifier.publicationtitleMaterials letters
dc.identifier.publicationvolume180
dc.identifier.urihttps://hdl.handle.net/10016/23222
dc.identifier.uxxiAR/0000017993
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofhttp://hdl.handle.net/10016/27083
dc.relation.projectIDGobierno de España. MAT2012-38650-C02-01es
dc.relation.projectIDGobierno de España. MAT2012-38650-C02-02es
dc.relation.projectIDGobierno de España. PTQ-13-05985es
dc.relation.projectIDComunidad de Madrid. S2013/MIT-2862/MULTIMAT-CHALLENGE
dc.relation.projectIDGobierno de España. FPI-2013
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.matlet.2016.05.179
dc.rights© 2016 Elsevier
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.ecienciaIngeniería Industriales
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherCore-shellen
dc.subject.otherHeterocoagulationen
dc.subject.otherNickel oxideen
dc.subject.otherMetallic nickelen
dc.subject.otherColloidal nanocompositesen
dc.titleSemiconductor-metal core-shell nanostructures by colloidal heterocoagulation in aqueous mediumen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
semiconductor_ML_2016_ps.pdf
Size:
1.84 MB
Format:
Adobe Portable Document Format
Download
Collections
DCIMIQ - CIMIQ - TP - Artículos de Revistas