- -

Why Citrate Shapes Tetrahedral and Octahedral Colloidal Platinum Nanoparticles in Water

RiuNet: Repositorio Institucional de la Universidad Politécnica de Valencia

Compartir/Enviar a

Citas

Estadísticas

  • Estadisticas de Uso

Why Citrate Shapes Tetrahedral and Octahedral Colloidal Platinum Nanoparticles in Water

Mostrar el registro sencillo del ítem

Ficheros en el ítem

dc.contributor.author Gisbert-González, J.M. es_ES
dc.contributor.author Feliu, Juan es_ES
dc.contributor.author Ferre Vilaplana, Adolfo es_ES
dc.contributor.author Herrero, Enrique es_ES
dc.date.accessioned 2020-06-03T05:53:21Z
dc.date.available 2020-06-03T05:53:21Z
dc.date.issued 2018-08-23 es_ES
dc.identifier.issn 1932-7447 es_ES
dc.identifier.uri http://hdl.handle.net/10251/145120
dc.description.abstract [EN] The performance of many advanced catalytic systems depends not only on the size and composition but also on the specific shape of the metal nanoparticles (NPs) from which they are assembled. In turn, the shape of colloidal NPs depends on the specific capping agent involved in their synthesis, though the mechanism is still poorly understood. Here, supported by electrochemical experiments, Fourier transform infrared spectra, and density functional theory calculations, on well-defined surfaces, we show how a specific capping agent determines the shape of colloidal NPs. Solvated citrate can become simultaneously adsorbed on the Pt(111) surface through three dehydrogenated carboxylic groups, with each one of them in bidentate configuration. On the other two basal planes, citrate can be adsorbed through only two of them. For this reason, under the synthesis conditions, citrate is more favorably adsorbed on the Pt(111) than on the other two basal planes of platinum. This adsorption behavior explains why colloidal platinum NPs of tetrahedral and octahedral shape are produced when citrate is used as the capping agent in water. The mechanism for citrate would also determine the shape of other pure face-centered cubic metals and can inspire the engineering of future capping agents. es_ES
dc.description.sponsorship This work has been financially supported by the MCINN-FEDER (Spain) through project CTQ2016-76221-P. es_ES
dc.language Inglés es_ES
dc.publisher American Chemical Society es_ES
dc.relation.ispartof The Journal of Physical Chemistry C es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject.classification LENGUAJES Y SISTEMAS INFORMATICOS es_ES
dc.title Why Citrate Shapes Tetrahedral and Octahedral Colloidal Platinum Nanoparticles in Water es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1021/acs.jpcc.8b05195 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//CTQ2016-76221-P/ES/ESTRUCTURA INTERFACIAL Y REACTIVIDAD ELECTROQUIMICA/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Sistemas Informáticos y Computación - Departament de Sistemes Informàtics i Computació es_ES
dc.description.bibliographicCitation Gisbert-González, J.; Feliu, J.; Ferre Vilaplana, A.; Herrero, E. (2018). Why Citrate Shapes Tetrahedral and Octahedral Colloidal Platinum Nanoparticles in Water. The Journal of Physical Chemistry C. 122(33):19004-19014. https://doi.org/10.1021/acs.jpcc.8b05195 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1021/acs.jpcc.8b05195 es_ES
dc.description.upvformatpinicio 19004 es_ES
dc.description.upvformatpfin 19014 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 122 es_ES
dc.description.issue 33 es_ES
dc.relation.pasarela S\373776 es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES
dc.contributor.funder Ministerio de Economía y Competitividad es_ES


Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem