Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach

Autores
Brites Helú, Mariela Alicia; Fernández, José L.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The microwriting approach of the scanning electrochemical microscopy (SECM) was adapted and optimized for the fabrication of extensive ordered arrays of gold microdisks deposited on conductive supports. This technique uses a SECM tip as a source for the localized delivery of metal ions by well-controlled electro-dissolution of the metal microelectrode. In this work, novel configurations of recessed-microelectrode tips (radii ≤ 12.5 μm) were developed to make possible the deposition of a large number of well-defined disks from the same probe by a semi-automatic procedure. A sequence of steps that coordinates tip potential, tip position, and substrate potential values was designed and implemented to improve the repeatability and confinement of the deposited microdisks. The effects of potential and time conditions for gold electro-dissolution and electrodeposition on the morphological properties of gold disks deposited on Pt and glassy carbon were explored. The selective modification of glassy carbon-supported gold arrays with an electrocatalytic material (Pt) for a specific reaction (hydrogen evolution) and their further SECM activity screening were described to illustrate a way to use them as multielectrode platforms.
Fil: Brites Helú, Mariela Alicia. Universidad Nacional del Litoral; Argentina
Fil: Fernández, José L.. Universidad Nacional del Litoral; Argentina
Materia
Electrodeposition
Micro-Patterning
Microelectrode Arrays
Recessed Microelectrodes
Scanning Electrochemical Microscopy
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:11336/32133
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/32133
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approachBrites Helú, Mariela AliciaFernández, José L.ElectrodepositionMicro-PatterningMicroelectrode ArraysRecessed MicroelectrodesScanning Electrochemical Microscopyhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The microwriting approach of the scanning electrochemical microscopy (SECM) was adapted and optimized for the fabrication of extensive ordered arrays of gold microdisks deposited on conductive supports. This technique uses a SECM tip as a source for the localized delivery of metal ions by well-controlled electro-dissolution of the metal microelectrode. In this work, novel configurations of recessed-microelectrode tips (radii ≤ 12.5 μm) were developed to make possible the deposition of a large number of well-defined disks from the same probe by a semi-automatic procedure. A sequence of steps that coordinates tip potential, tip position, and substrate potential values was designed and implemented to improve the repeatability and confinement of the deposited microdisks. The effects of potential and time conditions for gold electro-dissolution and electrodeposition on the morphological properties of gold disks deposited on Pt and glassy carbon were explored. The selective modification of glassy carbon-supported gold arrays with an electrocatalytic material (Pt) for a specific reaction (hydrogen evolution) and their further SECM activity screening were described to illustrate a way to use them as multielectrode platforms.Fil: Brites Helú, Mariela Alicia. Universidad Nacional del Litoral; ArgentinaFil: Fernández, José L.. Universidad Nacional del Litoral; ArgentinaElsevier Science Sa2017-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/32133Brites Helú, Mariela Alicia; Fernández, José L.; Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach; Elsevier Science Sa; Sensors and Actuators B: Chemical; 250; 10-2017; 420-4280925-4005CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2017.04.155info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925400517307657?via%3Dihubinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:47:55Zoai:ri.conicet.gov.ar:11336/32133instacron: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:34982025-09-03 09:47:56.14CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach
title Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach
spellingShingle Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach
Brites Helú, Mariela Alicia
Electrodeposition
Micro-Patterning
Microelectrode Arrays
Recessed Microelectrodes
Scanning Electrochemical Microscopy
title_short Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach
title_full Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach
title_fullStr Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach
title_full_unstemmed Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach
title_sort Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach
dc.creator.none.fl_str_mv Brites Helú, Mariela Alicia
Fernández, José L.
author Brites Helú, Mariela Alicia
author_facet Brites Helú, Mariela Alicia
Fernández, José L.
author_role author
author2 Fernández, José L.
author2_role author
dc.subject.none.fl_str_mv Electrodeposition
Micro-Patterning
Microelectrode Arrays
Recessed Microelectrodes
Scanning Electrochemical Microscopy
topic Electrodeposition
Micro-Patterning
Microelectrode Arrays
Recessed Microelectrodes
Scanning Electrochemical Microscopy
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The microwriting approach of the scanning electrochemical microscopy (SECM) was adapted and optimized for the fabrication of extensive ordered arrays of gold microdisks deposited on conductive supports. This technique uses a SECM tip as a source for the localized delivery of metal ions by well-controlled electro-dissolution of the metal microelectrode. In this work, novel configurations of recessed-microelectrode tips (radii ≤ 12.5 μm) were developed to make possible the deposition of a large number of well-defined disks from the same probe by a semi-automatic procedure. A sequence of steps that coordinates tip potential, tip position, and substrate potential values was designed and implemented to improve the repeatability and confinement of the deposited microdisks. The effects of potential and time conditions for gold electro-dissolution and electrodeposition on the morphological properties of gold disks deposited on Pt and glassy carbon were explored. The selective modification of glassy carbon-supported gold arrays with an electrocatalytic material (Pt) for a specific reaction (hydrogen evolution) and their further SECM activity screening were described to illustrate a way to use them as multielectrode platforms.
Fil: Brites Helú, Mariela Alicia. Universidad Nacional del Litoral; Argentina
Fil: Fernández, José L.. Universidad Nacional del Litoral; Argentina
description The microwriting approach of the scanning electrochemical microscopy (SECM) was adapted and optimized for the fabrication of extensive ordered arrays of gold microdisks deposited on conductive supports. This technique uses a SECM tip as a source for the localized delivery of metal ions by well-controlled electro-dissolution of the metal microelectrode. In this work, novel configurations of recessed-microelectrode tips (radii ≤ 12.5 μm) were developed to make possible the deposition of a large number of well-defined disks from the same probe by a semi-automatic procedure. A sequence of steps that coordinates tip potential, tip position, and substrate potential values was designed and implemented to improve the repeatability and confinement of the deposited microdisks. The effects of potential and time conditions for gold electro-dissolution and electrodeposition on the morphological properties of gold disks deposited on Pt and glassy carbon were explored. The selective modification of glassy carbon-supported gold arrays with an electrocatalytic material (Pt) for a specific reaction (hydrogen evolution) and their further SECM activity screening were described to illustrate a way to use them as multielectrode platforms.
publishDate 2017
dc.date.none.fl_str_mv 2017-10
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/11336/32133
Brites Helú, Mariela Alicia; Fernández, José L.; Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach; Elsevier Science Sa; Sensors and Actuators B: Chemical; 250; 10-2017; 420-428
0925-4005
CONICET Digital
CONICET
url http://hdl.handle.net/11336/32133
identifier_str_mv Brites Helú, Mariela Alicia; Fernández, José L.; Strategies for fabrication of highly-dense ordered arrays of metal microdisks by the scanning electrochemical microscopy microwriting approach; Elsevier Science Sa; Sensors and Actuators B: Chemical; 250; 10-2017; 420-428
0925-4005
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.snb.2017.04.155
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925400517307657?via%3Dihub
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
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 13.13397

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