Spectroelectrochemical study of the electrosynthesis of Pt nanoparticles/poly(3,4-(ethylenedioxythiophene) composite

UV-Visible, NIR and Raman spectroelectrochemistry techniques have been used for the in-situ study of Pt nanoparticles (PtNPs) electrosynthesis on an electrochemically generated poly(3,4-ethylenedioxythiophene) film. Two electrochemical steps have been used to obtain in a reproducible way PtNPs with...

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Detalles Bibliográficos
Autores: Fernández Blanco, Ana Cristina, Ibáñez Martínez, David, Colina, Álvaro, Ruiz Fernández, Virginia, Heras, Aránzazu
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2014
País:España
Institución:Universidad de Burgos (UBU)
Repositorio:Repositorio Institucional de la Universidad de Burgos (RIUBU)
OAI Identifier:oai:riubu.ubu.es:10259/3854
Acceso en línea:http://hdl.handle.net/10259/3854
Access Level:acceso abierto
Palabra clave:Conducting polymers
PEDOT
Platinum nanoparticles
Electrochemistry
Spectroelectrochemistry
Química analítica
Chemistry, Analytic
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spelling Spectroelectrochemical study of the electrosynthesis of Pt nanoparticles/poly(3,4-(ethylenedioxythiophene) compositeFernández Blanco, Ana CristinaIbáñez Martínez, DavidColina, ÁlvaroRuiz Fernández, VirginiaHeras, AránzazuConducting polymersPEDOTPlatinum nanoparticlesElectrochemistrySpectroelectrochemistryQuímica analíticaChemistry, AnalyticUV-Visible, NIR and Raman spectroelectrochemistry techniques have been used for the in-situ study of Pt nanoparticles (PtNPs) electrosynthesis on an electrochemically generated poly(3,4-ethylenedioxythiophene) film. Two electrochemical steps have been used to obtain in a reproducible way PtNPs with catalytic properties towards methanol oxidation: 1) deposition of Pt nuclei on the polymer modified electrode, 2) growth of these nuclei to form nanoparticles yielding drastic changes in the spectroscopic signal and a significant increase of the amount of Pt. A two steps procedure facilitates an interfacial growth mechanism of the nuclei over a diffusion controlled growth. Evolution of UV-Visible and NIR spectra during these two PtNPs synthesis steps helps to understand and explain the mechanism of generation of these nanoparticles. Besides, Energy Dispersive X-Ray analysis and Scanning Electron Microscopy images registered of the composite after each step of synthesis confirm the conclusions extracted from spectroelectrochemistry dataMinisterio de Ciencia y Tecnologia (CTQ2010-17127, V.R. Programa Ramon y Cajal), Junta de Castilla y Leon (GR71, BU349-U13), and Academy of Finland (V.R., Academy Research Fellow) is gratefully acknowledged. C. F-B. thanks Ministerio de Educacion, Cultura y Deporte for a predoctoral FPU fellowship. D.I. is grateful for his FPI-MICINN agreement of the Ministerio de Economia y Competitividad. ICTS of Complutense University of Madrid (Spain) and PCT-UBU of Burgos University (Spain) are also acknowledged for SEM images and EDX analysis, respectively.Elsevier201520152014info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://hdl.handle.net/10259/3854reponame:Repositorio Institucional de la Universidad de Burgos (RIUBU)instname:Universidad de Burgos (UBU)InglésElectrochimica Acta. 2014, V. 145, p. 139–147http://dx.doi.org/10.1016/j.electacta.2014.08.004info:eu-repo/grantAgreement/JCyL/GR71/info:eu-repo/grantAgreement/JCyL/BU349-U13/info:eu-repo/grantAgreement/MINCYT/CTQ2010-17127/info:eu-repo/semantics/openAccessoai:riubu.ubu.es:10259/38542026-05-28T07:56:11Z
dc.title.none.fl_str_mv Spectroelectrochemical study of the electrosynthesis of Pt nanoparticles/poly(3,4-(ethylenedioxythiophene) composite
title Spectroelectrochemical study of the electrosynthesis of Pt nanoparticles/poly(3,4-(ethylenedioxythiophene) composite
spellingShingle Spectroelectrochemical study of the electrosynthesis of Pt nanoparticles/poly(3,4-(ethylenedioxythiophene) composite
Fernández Blanco, Ana Cristina
Conducting polymers
PEDOT
Platinum nanoparticles
Electrochemistry
Spectroelectrochemistry
Química analítica
Chemistry, Analytic
title_short Spectroelectrochemical study of the electrosynthesis of Pt nanoparticles/poly(3,4-(ethylenedioxythiophene) composite
title_full Spectroelectrochemical study of the electrosynthesis of Pt nanoparticles/poly(3,4-(ethylenedioxythiophene) composite
title_fullStr Spectroelectrochemical study of the electrosynthesis of Pt nanoparticles/poly(3,4-(ethylenedioxythiophene) composite
title_full_unstemmed Spectroelectrochemical study of the electrosynthesis of Pt nanoparticles/poly(3,4-(ethylenedioxythiophene) composite
title_sort Spectroelectrochemical study of the electrosynthesis of Pt nanoparticles/poly(3,4-(ethylenedioxythiophene) composite
dc.creator.none.fl_str_mv Fernández Blanco, Ana Cristina
Ibáñez Martínez, David
Colina, Álvaro
Ruiz Fernández, Virginia
Heras, Aránzazu
author Fernández Blanco, Ana Cristina
author_facet Fernández Blanco, Ana Cristina
Ibáñez Martínez, David
Colina, Álvaro
Ruiz Fernández, Virginia
Heras, Aránzazu
author_role author
author2 Ibáñez Martínez, David
Colina, Álvaro
Ruiz Fernández, Virginia
Heras, Aránzazu
author2_role author
author
author
author
dc.subject.none.fl_str_mv Conducting polymers
PEDOT
Platinum nanoparticles
Electrochemistry
Spectroelectrochemistry
Química analítica
Chemistry, Analytic
topic Conducting polymers
PEDOT
Platinum nanoparticles
Electrochemistry
Spectroelectrochemistry
Química analítica
Chemistry, Analytic
description UV-Visible, NIR and Raman spectroelectrochemistry techniques have been used for the in-situ study of Pt nanoparticles (PtNPs) electrosynthesis on an electrochemically generated poly(3,4-ethylenedioxythiophene) film. Two electrochemical steps have been used to obtain in a reproducible way PtNPs with catalytic properties towards methanol oxidation: 1) deposition of Pt nuclei on the polymer modified electrode, 2) growth of these nuclei to form nanoparticles yielding drastic changes in the spectroscopic signal and a significant increase of the amount of Pt. A two steps procedure facilitates an interfacial growth mechanism of the nuclei over a diffusion controlled growth. Evolution of UV-Visible and NIR spectra during these two PtNPs synthesis steps helps to understand and explain the mechanism of generation of these nanoparticles. Besides, Energy Dispersive X-Ray analysis and Scanning Electron Microscopy images registered of the composite after each step of synthesis confirm the conclusions extracted from spectroelectrochemistry data
publishDate 2014
dc.date.none.fl_str_mv 2014
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10259/3854
url http://hdl.handle.net/10259/3854
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Electrochimica Acta. 2014, V. 145, p. 139–147
http://dx.doi.org/10.1016/j.electacta.2014.08.004
info:eu-repo/grantAgreement/JCyL/GR71/
info:eu-repo/grantAgreement/JCyL/BU349-U13/
info:eu-repo/grantAgreement/MINCYT/CTQ2010-17127/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositorio Institucional de la Universidad de Burgos (RIUBU)
instname:Universidad de Burgos (UBU)
instname_str Universidad de Burgos (UBU)
reponame_str Repositorio Institucional de la Universidad de Burgos (RIUBU)
collection Repositorio Institucional de la Universidad de Burgos (RIUBU)
repository.name.fl_str_mv
repository.mail.fl_str_mv
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