UV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodes

A new controlled current multipulse methodology has been developed to modify the screen-printed electrode surface with silver nanoparticles (AgNPs). Spectroelectrochemistry has provided not only information about the type of nanoparticles (NPs) deposited on the electrode surface, but also about the...

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Detalles Bibliográficos
Autores: Fernández Blanco, Ana Cristina, Colina, Álvaro, Heras, Aránzazu
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Institución:Universidad de Burgos (UBU)
Repositorio:Repositorio Institucional de la Universidad de Burgos (RIUBU)
OAI Identifier:oai:riubu.ubu.es:10259/4265
Acceso en línea:http://hdl.handle.net/10259/4265
Access Level:acceso abierto
Palabra clave:UV-Vis spectroelectrochemistry
silver nanoparticles
screen-printed electrodes
electrochemistry
Química analítica
Chemistry, Analytic
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spelling UV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodesFernández Blanco, Ana CristinaColina, ÁlvaroHeras, AránzazuUV-Vis spectroelectrochemistrysilver nanoparticlesscreen-printed electrodeselectrochemistryQuímica analíticaChemistry, AnalyticA new controlled current multipulse methodology has been developed to modify the screen-printed electrode surface with silver nanoparticles (AgNPs). Spectroelectrochemistry has provided not only information about the type of nanoparticles (NPs) deposited on the electrode surface, but also about the electrosynthesis process. Small NPs without plasmon band are initially generated. Next, these nuclei grow to form bigger NPs in the reduction pulses with a characteristic plasmon band centered at 400 nm. Most of the NPs are generated during the first reduction pulses and a linear growth of the absorbance at a lower reaction rate was obtained in the subsequent pulses. Oxidation pulses do not redissolve completely silver NPs but only partially, meaning that very stable NPs are generated. AgNPs-modified electrodes have been successfully used to determine hydrogen peroxide. Spectroelectrochemistry has also yielded very useful information to understand the voltammetric signal obtained during the reduction of H2O2 on silver modified electrodes.Ministerio de Economía y Competitividad (CTQ2010-17127) and Junta de Castilla y León (GR71, BU197A12-2)MDPI201620162013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10259/4265reponame:Repositorio Institucional de la Universidad de Burgos (RIUBU)instname:Universidad de Burgos (UBU)InglésSensors. 2013, V. 13, n. 5, p. 5700-5711http://dx.doi.org/10.3390/s130505700info:eu-repo/grantAgreement/MINECO/CTQ2010-17127/info:eu-repo/grantAgreement/JCyL/GR71/info:eu-repo/grantAgreement/JCyL/BU197A12-2/Attribution 3.0 Unportedhttp://creativecommons.org/licenses/by/3.0/info:eu-repo/semantics/openAccessoai:riubu.ubu.es:10259/42652026-05-28T07:56:11Z
dc.title.none.fl_str_mv UV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodes
title UV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodes
spellingShingle UV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodes
Fernández Blanco, Ana Cristina
UV-Vis spectroelectrochemistry
silver nanoparticles
screen-printed electrodes
electrochemistry
Química analítica
Chemistry, Analytic
title_short UV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodes
title_full UV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodes
title_fullStr UV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodes
title_full_unstemmed UV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodes
title_sort UV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodes
dc.creator.none.fl_str_mv Fernández Blanco, Ana Cristina
Colina, Álvaro
Heras, Aránzazu
author Fernández Blanco, Ana Cristina
author_facet Fernández Blanco, Ana Cristina
Colina, Álvaro
Heras, Aránzazu
author_role author
author2 Colina, Álvaro
Heras, Aránzazu
author2_role author
author
dc.subject.none.fl_str_mv UV-Vis spectroelectrochemistry
silver nanoparticles
screen-printed electrodes
electrochemistry
Química analítica
Chemistry, Analytic
topic UV-Vis spectroelectrochemistry
silver nanoparticles
screen-printed electrodes
electrochemistry
Química analítica
Chemistry, Analytic
description A new controlled current multipulse methodology has been developed to modify the screen-printed electrode surface with silver nanoparticles (AgNPs). Spectroelectrochemistry has provided not only information about the type of nanoparticles (NPs) deposited on the electrode surface, but also about the electrosynthesis process. Small NPs without plasmon band are initially generated. Next, these nuclei grow to form bigger NPs in the reduction pulses with a characteristic plasmon band centered at 400 nm. Most of the NPs are generated during the first reduction pulses and a linear growth of the absorbance at a lower reaction rate was obtained in the subsequent pulses. Oxidation pulses do not redissolve completely silver NPs but only partially, meaning that very stable NPs are generated. AgNPs-modified electrodes have been successfully used to determine hydrogen peroxide. Spectroelectrochemistry has also yielded very useful information to understand the voltammetric signal obtained during the reduction of H2O2 on silver modified electrodes.
publishDate 2013
dc.date.none.fl_str_mv 2013
2016
2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10259/4265
url http://hdl.handle.net/10259/4265
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sensors. 2013, V. 13, n. 5, p. 5700-5711
http://dx.doi.org/10.3390/s130505700
info:eu-repo/grantAgreement/MINECO/CTQ2010-17127/
info:eu-repo/grantAgreement/JCyL/GR71/
info:eu-repo/grantAgreement/JCyL/BU197A12-2/
dc.rights.none.fl_str_mv Attribution 3.0 Unported
http://creativecommons.org/licenses/by/3.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 3.0 Unported
http://creativecommons.org/licenses/by/3.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
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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score 15,300719

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