Characterization of modified solid electrodes with organized thin films of a tetra-substituted zinc phthalocyanine

Organized thin films of a zinc phthalocyanine have been deposited on solid electrodes using several techniques, such as drop casting, immersion and Langmuir-Blodgett (LB), at several conditions, and their electrochemical response has been studied by cyclic voltammetry and differential pulse voltamme...

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Authors: Guaus Guerrero, Ester|||0000-0001-9712-5325, Torrent Burgués, Juan|||0000-0002-4952-736X
Format: article
Publication Date:2022
Country:España
Institution:Universitat Politècnica de Catalunya (UPC)
Repository:UPCommons. Portal del coneixement obert de la UPC
Language:English
OAI Identifier:oai:upcommons.upc.edu:2117/363828
Online Access:https://hdl.handle.net/2117/363828
https://dx.doi.org/10.1016/j.tsf.2022.139145
Access Level:Open access
Keyword:Electrochemistry
Thin films, Multilayered
Zinc
Self-organized films
Drop casting
Atomic Force Microscopy
Langmuir-Blodgett deposition
Zinc phthalocyanine
Electroquímica
Pel·lícules fines
Àrees temàtiques de la UPC::Enginyeria química::Química física::Electroquímica
id ES_c0d97fc2fcc5e46f928f2e6a944df227
oai_identifier_str oai:upcommons.upc.edu:2117/363828
network_acronym_str ES
network_name_str España
repository_id_str
spelling Characterization of modified solid electrodes with organized thin films of a tetra-substituted zinc phthalocyanineGuaus Guerrero, Ester|||0000-0001-9712-5325Torrent Burgués, Juan|||0000-0002-4952-736XElectrochemistryThin films, MultilayeredZincSelf-organized filmsDrop castingAtomic Force MicroscopyLangmuir-Blodgett depositionElectrochemistryZinc phthalocyanineElectroquímicaPel·lícules finesZincÀrees temàtiques de la UPC::Enginyeria química::Química física::ElectroquímicaOrganized thin films of a zinc phthalocyanine have been deposited on solid electrodes using several techniques, such as drop casting, immersion and Langmuir-Blodgett (LB), at several conditions, and their electrochemical response has been studied by cyclic voltammetry and differential pulse voltammetry. Topographical images by Atomic Force Microscopy reveal that the structure of immersion and LB films is uniform, showing granular aggregates and continuous layers, respectively. The electrochemical response of both kind of films is similar and shows peaks that can be correlated with redox processes occurring in the phthalocyanine ring. Drop casting films present a different topography, with rod-like structures, and the voltammograms show an enhancement in the peaks at positive potentials, which has been attributed to the influence of the atmospheric oxygen adsorbed during the film deposition. Immersion and LB films have also shown an increase in the oxidation current intensity of the voltammetric response after exposition to molecular oxygen. These results point to a possible application of these organized t-BuZnPc thin films as electrochemical oxygen sensorsThis work has been supported by the AGAUR Grup de recerca consolidat 2017 SGR 163 Project (Catalonia, Spain).Peer Reviewed20222022-04-0120222022-03-10journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/363828https://dx.doi.org/10.1016/j.tsf.2022.139145reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttps://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3638282026-05-27T15:37:01Z
dc.title.none.fl_str_mv Characterization of modified solid electrodes with organized thin films of a tetra-substituted zinc phthalocyanine
title Characterization of modified solid electrodes with organized thin films of a tetra-substituted zinc phthalocyanine
spellingShingle Characterization of modified solid electrodes with organized thin films of a tetra-substituted zinc phthalocyanine
Guaus Guerrero, Ester|||0000-0001-9712-5325
Electrochemistry
Thin films, Multilayered
Zinc
Self-organized films
Drop casting
Atomic Force Microscopy
Langmuir-Blodgett deposition
Electrochemistry
Zinc phthalocyanine
Electroquímica
Pel·lícules fines
Zinc
Àrees temàtiques de la UPC::Enginyeria química::Química física::Electroquímica
title_short Characterization of modified solid electrodes with organized thin films of a tetra-substituted zinc phthalocyanine
title_full Characterization of modified solid electrodes with organized thin films of a tetra-substituted zinc phthalocyanine
title_fullStr Characterization of modified solid electrodes with organized thin films of a tetra-substituted zinc phthalocyanine
title_full_unstemmed Characterization of modified solid electrodes with organized thin films of a tetra-substituted zinc phthalocyanine
title_sort Characterization of modified solid electrodes with organized thin films of a tetra-substituted zinc phthalocyanine
dc.creator.none.fl_str_mv Guaus Guerrero, Ester|||0000-0001-9712-5325
Torrent Burgués, Juan|||0000-0002-4952-736X
author Guaus Guerrero, Ester|||0000-0001-9712-5325
author_facet Guaus Guerrero, Ester|||0000-0001-9712-5325
Torrent Burgués, Juan|||0000-0002-4952-736X
author_role author
author2 Torrent Burgués, Juan|||0000-0002-4952-736X
author2_role author
dc.subject.none.fl_str_mv Electrochemistry
Thin films, Multilayered
Zinc
Self-organized films
Drop casting
Atomic Force Microscopy
Langmuir-Blodgett deposition
Electrochemistry
Zinc phthalocyanine
Electroquímica
Pel·lícules fines
Zinc
Àrees temàtiques de la UPC::Enginyeria química::Química física::Electroquímica
topic Electrochemistry
Thin films, Multilayered
Zinc
Self-organized films
Drop casting
Atomic Force Microscopy
Langmuir-Blodgett deposition
Electrochemistry
Zinc phthalocyanine
Electroquímica
Pel·lícules fines
Zinc
Àrees temàtiques de la UPC::Enginyeria química::Química física::Electroquímica
description Organized thin films of a zinc phthalocyanine have been deposited on solid electrodes using several techniques, such as drop casting, immersion and Langmuir-Blodgett (LB), at several conditions, and their electrochemical response has been studied by cyclic voltammetry and differential pulse voltammetry. Topographical images by Atomic Force Microscopy reveal that the structure of immersion and LB films is uniform, showing granular aggregates and continuous layers, respectively. The electrochemical response of both kind of films is similar and shows peaks that can be correlated with redox processes occurring in the phthalocyanine ring. Drop casting films present a different topography, with rod-like structures, and the voltammograms show an enhancement in the peaks at positive potentials, which has been attributed to the influence of the atmospheric oxygen adsorbed during the film deposition. Immersion and LB films have also shown an increase in the oxidation current intensity of the voltammetric response after exposition to molecular oxygen. These results point to a possible application of these organized t-BuZnPc thin films as electrochemical oxygen sensors
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-04-01
2022
2022-03-10
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/363828
https://dx.doi.org/10.1016/j.tsf.2022.139145
url https://hdl.handle.net/2117/363828
https://dx.doi.org/10.1016/j.tsf.2022.139145
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869418512049504257
score 15,300724

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