Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions

Autores
Farias, Eliana Desiree; Passeggi, Mario Cesar Guillermo; Brunetti, Veronica
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
An effective tailoring of carbon surfaces functionalized with a first-generation amino-ended dendrons was achieved by a simple self-assembly strategy. The morphology, as well as the viscoelastic and electrical properties of the modified surfaces were characterized at a micro-nanoscale level, by Cyclic Voltammetry (CV), Electrochemical Impedance Spectroscopy (EIS), Atomic Force Microscopy (AFM) and Kelvin Probe Force Microscopy (KPFM). Thermodynamic parameters of the adsorption were investigated by EIS, studying the blocking properties of the modified surfaces towards the redox conversion of [Fe(CN)6]3 −/[Fe(CN)6]4 −. AFM images were used to characterize the topography of the modified surfaces and also their viscoelastic properties by the acquisition of phase images. π-π stacking interactions between dendrons and the carbon surface control the aggregation at low coverages, while forces of intermolecular Hydrogen-bond among dendrons appear at high coverages leading to more compact regions. The implications of the amino-ended dendron layer on the electrical properties of the modified surface have been analyzed through KPFM in comparison with nitro-ended dendron films, showing a decrease of the local contact potential difference after the incorporation of molecules having electron-donor (− NH2) functional groups, in contrast with the increase showed for molecules with electron-acceptor (− NO2) ones.
Fil: Farias, Eliana Desiree. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina
Fil: Passeggi, Mario Cesar Guillermo. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina
Fil: Brunetti, Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
Dendronized Layers
Frumkin Adsorption
Impedimetric Determination
Kpfm
Substituent Effects
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/37990
Acceder
id CONICETDig_360b7fb6edd235f6715b1a72c8a842fd
oai_identifier_str oai:ri.conicet.gov.ar:11336/37990
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactionsFarias, Eliana DesireePasseggi, Mario Cesar GuillermoBrunetti, VeronicaDendronized LayersFrumkin AdsorptionImpedimetric DeterminationKpfmSubstituent Effectshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1An effective tailoring of carbon surfaces functionalized with a first-generation amino-ended dendrons was achieved by a simple self-assembly strategy. The morphology, as well as the viscoelastic and electrical properties of the modified surfaces were characterized at a micro-nanoscale level, by Cyclic Voltammetry (CV), Electrochemical Impedance Spectroscopy (EIS), Atomic Force Microscopy (AFM) and Kelvin Probe Force Microscopy (KPFM). Thermodynamic parameters of the adsorption were investigated by EIS, studying the blocking properties of the modified surfaces towards the redox conversion of [Fe(CN)6]3 −/[Fe(CN)6]4 −. AFM images were used to characterize the topography of the modified surfaces and also their viscoelastic properties by the acquisition of phase images. π-π stacking interactions between dendrons and the carbon surface control the aggregation at low coverages, while forces of intermolecular Hydrogen-bond among dendrons appear at high coverages leading to more compact regions. The implications of the amino-ended dendron layer on the electrical properties of the modified surface have been analyzed through KPFM in comparison with nitro-ended dendron films, showing a decrease of the local contact potential difference after the incorporation of molecules having electron-donor (− NH2) functional groups, in contrast with the increase showed for molecules with electron-acceptor (− NO2) ones.Fil: Farias, Eliana Desiree. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; ArgentinaFil: Passeggi, Mario Cesar Guillermo. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; ArgentinaFil: Brunetti, Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaElsevier Science Sa2017-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/37990Farias, Eliana Desiree; Passeggi, Mario Cesar Guillermo; Brunetti, Veronica; Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions; Elsevier Science Sa; Thin Solid Films; 642; 11-2017; 339-3440040-6090CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040609017307484info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tsf.2017.10.005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:01:37Zoai:ri.conicet.gov.ar:11336/37990instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:01:38.22CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions
title Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions
spellingShingle Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions
Farias, Eliana Desiree
Dendronized Layers
Frumkin Adsorption
Impedimetric Determination
Kpfm
Substituent Effects
title_short Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions
title_full Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions
title_fullStr Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions
title_full_unstemmed Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions
title_sort Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions
dc.creator.none.fl_str_mv Farias, Eliana Desiree
Passeggi, Mario Cesar Guillermo
Brunetti, Veronica
author Farias, Eliana Desiree
author_facet Farias, Eliana Desiree
Passeggi, Mario Cesar Guillermo
Brunetti, Veronica
author_role author
author2 Passeggi, Mario Cesar Guillermo
Brunetti, Veronica
author2_role author
author
dc.subject.none.fl_str_mv Dendronized Layers
Frumkin Adsorption
Impedimetric Determination
Kpfm
Substituent Effects
topic Dendronized Layers
Frumkin Adsorption
Impedimetric Determination
Kpfm
Substituent Effects
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv An effective tailoring of carbon surfaces functionalized with a first-generation amino-ended dendrons was achieved by a simple self-assembly strategy. The morphology, as well as the viscoelastic and electrical properties of the modified surfaces were characterized at a micro-nanoscale level, by Cyclic Voltammetry (CV), Electrochemical Impedance Spectroscopy (EIS), Atomic Force Microscopy (AFM) and Kelvin Probe Force Microscopy (KPFM). Thermodynamic parameters of the adsorption were investigated by EIS, studying the blocking properties of the modified surfaces towards the redox conversion of [Fe(CN)6]3 −/[Fe(CN)6]4 −. AFM images were used to characterize the topography of the modified surfaces and also their viscoelastic properties by the acquisition of phase images. π-π stacking interactions between dendrons and the carbon surface control the aggregation at low coverages, while forces of intermolecular Hydrogen-bond among dendrons appear at high coverages leading to more compact regions. The implications of the amino-ended dendron layer on the electrical properties of the modified surface have been analyzed through KPFM in comparison with nitro-ended dendron films, showing a decrease of the local contact potential difference after the incorporation of molecules having electron-donor (− NH2) functional groups, in contrast with the increase showed for molecules with electron-acceptor (− NO2) ones.
Fil: Farias, Eliana Desiree. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina
Fil: Passeggi, Mario Cesar Guillermo. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina
Fil: Brunetti, Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description An effective tailoring of carbon surfaces functionalized with a first-generation amino-ended dendrons was achieved by a simple self-assembly strategy. The morphology, as well as the viscoelastic and electrical properties of the modified surfaces were characterized at a micro-nanoscale level, by Cyclic Voltammetry (CV), Electrochemical Impedance Spectroscopy (EIS), Atomic Force Microscopy (AFM) and Kelvin Probe Force Microscopy (KPFM). Thermodynamic parameters of the adsorption were investigated by EIS, studying the blocking properties of the modified surfaces towards the redox conversion of [Fe(CN)6]3 −/[Fe(CN)6]4 −. AFM images were used to characterize the topography of the modified surfaces and also their viscoelastic properties by the acquisition of phase images. π-π stacking interactions between dendrons and the carbon surface control the aggregation at low coverages, while forces of intermolecular Hydrogen-bond among dendrons appear at high coverages leading to more compact regions. The implications of the amino-ended dendron layer on the electrical properties of the modified surface have been analyzed through KPFM in comparison with nitro-ended dendron films, showing a decrease of the local contact potential difference after the incorporation of molecules having electron-donor (− NH2) functional groups, in contrast with the increase showed for molecules with electron-acceptor (− NO2) ones.
publishDate 2017
dc.date.none.fl_str_mv 2017-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/37990
Farias, Eliana Desiree; Passeggi, Mario Cesar Guillermo; Brunetti, Veronica; Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions; Elsevier Science Sa; Thin Solid Films; 642; 11-2017; 339-344
0040-6090
CONICET Digital
CONICET
url http://hdl.handle.net/11336/37990
identifier_str_mv Farias, Eliana Desiree; Passeggi, Mario Cesar Guillermo; Brunetti, Veronica; Tuning properties of carbon surfaces functionalized with amino-ended dendron layers by exploring their supramolecular interactions; Elsevier Science Sa; Thin Solid Films; 642; 11-2017; 339-344
0040-6090
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0040609017307484
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.tsf.2017.10.005
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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