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Synthesis of Pt nanoparticles on electrochemically reduced graphene oxide by potentiostatic and alternate current methods

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Synthesis of Pt nanoparticles on electrochemically reduced graphene oxide by potentiostatic and alternate current methods

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dc.contributor.author Molina Puerto, Javier es_ES
dc.contributor.author Fernández Sáez, Javier es_ES
dc.contributor.author Del Río García, Ana Isabel es_ES
dc.contributor.author Bonastre Cano, José Antonio es_ES
dc.contributor.author Cases Iborra, Francisco Javier es_ES
dc.date.accessioned 2014-05-23T12:33:54Z
dc.date.issued 2014-03
dc.identifier.issn 1044-5803
dc.identifier.uri http://hdl.handle.net/10251/37717
dc.description.abstract Reduced graphene oxide (RGO) has been synthesized on Pt wires by means of a potentiodynamic method between +0.6 V and -1.4'V for 20 scans. Cyclic voltammetry characterization of the coatings showed the typical capacitative behavior of graphene. Pt nanoparticles were synthesized on Pt-RGO electrodes by means of potentiostatic methods and a comparison between different synthesis potentials (-0.16, 0, +0.2 and +0.4 V) for the same synthesis charge (mC.cm(-2)) was established. The electrodes obtained were characterized in 0.5 M H2SO4 solution to observe the characteristic oxidation and reduction processes of the Pt surface. A 0.5 M H2SO4/0.5 M CH3OH solution was used to measure the catalytic properties of the deposits against methanol oxidation. The most appropriate potential to perform the synthesis was 0 V followed by -0.16 V and +0.2 V. The morphology of the coatings varied depending on the potential applied as observed by scanning electron microscopy. Alternate current methods were also used to synthesize Pt nanoparticles and compare the results with the traditional potentiostatic method. Different frequencies were used: 0.1, 1, 10, 100, 1000 and 10000 Hz. Alternate current synthesis is more efficient than traditional potentiostatic methods, obtaining more electroactive coatings with less effective synthesis time. (C) 2014 Elsevier Inc. All rights reserved. es_ES
dc.description.sponsorship Authors wish to thank to the Spanish Ministerio de Ciencia e Innovacion (contract CTM2011-23583) and Universitat Politecnica de Valencia (Vicerrectorado de Investigacion PAID-06-10 contract 003-233) for the financial support. J. Molina is grateful to the Conselleria d'Educacio, Formacio i Ocupacio (Generalitat Valenciana) for the Programa VALi+D Postdoctoral Fellowship. A.I. del Rio is grateful to the Spanish Ministerio de Ciencia y Tecnologia for the FPI fellowship. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Materials Characterization es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Reduced graphene oxide es_ES
dc.subject Electrochemical reduction es_ES
dc.subject Platinum nanoparticles es_ES
dc.subject Alternate current methods es_ES
dc.subject Potentiostatic methods es_ES
dc.subject.classification QUIMICA FISICA es_ES
dc.title Synthesis of Pt nanoparticles on electrochemically reduced graphene oxide by potentiostatic and alternate current methods es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.matchar.2014.01.003
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//CTM2011-23583/ES/DESARROLLO DE NUEVOS MATERIALES ELECTRODICOS BASADOS EN RECUBRIMIENTOS DE ICP Y PT, CON APLICACION EN EL TRATAMIENTO ELECTROQUIMICO DE AGUAS RESIDUALES TEXTILES/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UPV//PAID-06-10-003-233/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera es_ES
dc.description.bibliographicCitation Molina Puerto, J.; Fernández Sáez, J.; Del Río García, AI.; Bonastre Cano, JA.; Cases Iborra, FJ. (2014). Synthesis of Pt nanoparticles on electrochemically reduced graphene oxide by potentiostatic and alternate current methods. Materials Characterization. 89:56-68. https://doi.org/10.1016/j.matchar.2014.01.003 es_ES
dc.description.accrualMethod S es_ES
dc.description.upvformatpinicio 56 es_ES
dc.description.upvformatpfin 68 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 89 es_ES
dc.relation.senia 254748
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Ministerio de Ciencia y Tecnología es_ES


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