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dc.contributor.authorFernández Blanco, Ana Cristina 
dc.contributor.authorColina, Álvaro 
dc.contributor.authorHeras, Aránzazu 
dc.date.accessioned2016-11-11T09:02:21Z
dc.date.available2016-11-11T09:02:21Z
dc.date.issued2013-05
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/10259/4265
dc.description.abstractA 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.en
dc.description.sponsorshipMinisterio de Economía y Competitividad (CTQ2010-17127) and Junta de Castilla y León (GR71, BU197A12-2)en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherMDPIen
dc.relation.ispartofSensors. 2013, V. 13, n. 5, p. 5700-5711en
dc.rightsAttribution 3.0 Unported
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.subjectUV-Vis spectroelectrochemistryen
dc.subjectsilver nanoparticlesen
dc.subjectscreen-printed electrodesen
dc.subjectelectrochemistryen
dc.subject.otherQuímica analíticaes
dc.subject.otherChemistry, Analyticen
dc.titleUV/Vis spectroelectrochemistry as a tool for monitoring the fabrication of sensors based on silver nanoparticle modified electrodesen
dc.typeArtículoes
dc.typeinfo:eu-repo/semantics/article
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.relation.publisherversionhttp://dx.doi.org/10.3390/s130505700
dc.identifier.doi10.3390/s130505700
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/CTQ2010-17127
dc.relation.projectIDinfo:eu-repo/grantAgreement/JCyL/GR71
dc.relation.projectIDinfo:eu-repo/grantAgreement/JCyL/BU197A12-2
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersionen


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