First stages of silver electrodeposition in a Deep Eutectic Solvent. Comparative behaviour in aqueous medium

The aim of the present work was to study the viability of a deep eutectic solvent (DES) solvent (consisting in a eutectic mixture of 1 choline chloride: 2 urea) as electrolyte for the electrodeposition of silver (I), paying special attention to the influence of the liquid on the mechanism of nucleat...

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Autores: Sebastián, Paula, Vallés Giménez, Elisa, Gómez, Elvira
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2013
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/139924
Acceso en línea:https://hdl.handle.net/2445/139924
Access Level:acceso abierto
Palabra clave:Argent
Nucleació
Galvanoplàstia
Silver
Nucleation
Electroplating
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spelling First stages of silver electrodeposition in a Deep Eutectic Solvent. Comparative behaviour in aqueous mediumSebastián, PaulaVallés Giménez, ElisaGómez, ElviraArgentNucleacióGalvanoplàstiaSilverNucleationElectroplatingThe aim of the present work was to study the viability of a deep eutectic solvent (DES) solvent (consisting in a eutectic mixture of 1 choline chloride: 2 urea) as electrolyte for the electrodeposition of silver (I), paying special attention to the influence of the liquid on the mechanism of nucleation process. As this DES solvent is rich in chloride anion, which can act as complexing agent of the silver cation, parallel analysis was made, as reference, in aqueous media, both in free-chloride solution and in excess of chloride. These studies were made to analyze the role of chloride anion on the first stages of silver electrodeposition, but also to compare as nucleation mechanism changes depending on the medium, especially when DES solvent was used. For all solutions, cyclic voltammetry was useful to establish the potential range at which silver electrodeposition occurred, while potentiostatic technique was used to study the mechanism of the process. In all media, the deposition follows a nucleation and three dimensional growth governed by diffusion. The viability of the nucleation mechanism by Scharifker-Hills model was demonstrated. The analysis of the rising parts of the j-t transients confirms the obtained results by the model. Diffusion coefficients of silver species present in the solution were calculated from linear regression of j vs t−1/2 at long deposition times.Elsevier Ltd2019201920132019info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion10 p.application/pdfhttps://hdl.handle.net/2445/139924Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1016/j.electacta.2013.08.144Electrochimica Acta, 2013, vol. 112, num. , p. 149-158https://doi.org/10.1016/j.electacta.2013.08.144(c) Elsevier Ltd, 2013info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1399242026-05-29T05:05:01Z
dc.title.none.fl_str_mv First stages of silver electrodeposition in a Deep Eutectic Solvent. Comparative behaviour in aqueous medium
title First stages of silver electrodeposition in a Deep Eutectic Solvent. Comparative behaviour in aqueous medium
spellingShingle First stages of silver electrodeposition in a Deep Eutectic Solvent. Comparative behaviour in aqueous medium
Sebastián, Paula
Argent
Nucleació
Galvanoplàstia
Silver
Nucleation
Electroplating
title_short First stages of silver electrodeposition in a Deep Eutectic Solvent. Comparative behaviour in aqueous medium
title_full First stages of silver electrodeposition in a Deep Eutectic Solvent. Comparative behaviour in aqueous medium
title_fullStr First stages of silver electrodeposition in a Deep Eutectic Solvent. Comparative behaviour in aqueous medium
title_full_unstemmed First stages of silver electrodeposition in a Deep Eutectic Solvent. Comparative behaviour in aqueous medium
title_sort First stages of silver electrodeposition in a Deep Eutectic Solvent. Comparative behaviour in aqueous medium
dc.creator.none.fl_str_mv Sebastián, Paula
Vallés Giménez, Elisa
Gómez, Elvira
author Sebastián, Paula
author_facet Sebastián, Paula
Vallés Giménez, Elisa
Gómez, Elvira
author_role author
author2 Vallés Giménez, Elisa
Gómez, Elvira
author2_role author
author
dc.subject.none.fl_str_mv Argent
Nucleació
Galvanoplàstia
Silver
Nucleation
Electroplating
topic Argent
Nucleació
Galvanoplàstia
Silver
Nucleation
Electroplating
description The aim of the present work was to study the viability of a deep eutectic solvent (DES) solvent (consisting in a eutectic mixture of 1 choline chloride: 2 urea) as electrolyte for the electrodeposition of silver (I), paying special attention to the influence of the liquid on the mechanism of nucleation process. As this DES solvent is rich in chloride anion, which can act as complexing agent of the silver cation, parallel analysis was made, as reference, in aqueous media, both in free-chloride solution and in excess of chloride. These studies were made to analyze the role of chloride anion on the first stages of silver electrodeposition, but also to compare as nucleation mechanism changes depending on the medium, especially when DES solvent was used. For all solutions, cyclic voltammetry was useful to establish the potential range at which silver electrodeposition occurred, while potentiostatic technique was used to study the mechanism of the process. In all media, the deposition follows a nucleation and three dimensional growth governed by diffusion. The viability of the nucleation mechanism by Scharifker-Hills model was demonstrated. The analysis of the rising parts of the j-t transients confirms the obtained results by the model. Diffusion coefficients of silver species present in the solution were calculated from linear regression of j vs t−1/2 at long deposition times.
publishDate 2013
dc.date.none.fl_str_mv 2013
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/139924
url https://hdl.handle.net/2445/139924
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.electacta.2013.08.144
Electrochimica Acta, 2013, vol. 112, num. , p. 149-158
https://doi.org/10.1016/j.electacta.2013.08.144
dc.rights.none.fl_str_mv (c) Elsevier Ltd, 2013
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Elsevier Ltd, 2013
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 10 p.
application/pdf
dc.publisher.none.fl_str_mv Elsevier Ltd
publisher.none.fl_str_mv Elsevier Ltd
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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