A comparative study of the early stages of mercury, cadmium, lead, silver and copper electrodeposition on columnar and smooth platinum electrodes
- Autores
- Martins, María Elisa; Salvarezza, Roberto Carlos; Arvia, Alejandro Jorge
- Año de publicación
- 1996
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The early stages of metal (M) electrodeposition (M = Cu, Ag, Pb, Cd and Hg) on columnar and smooth Pt substrates (S) were investigated in acid solutions applying potentiodynamic techniques. At moderate and high potential scanning rates M electrodeposition on columnar substrates yields M domains which are dominated either by M-S interactions (M-S domains) or M-M interactions (M-M domains) as deduced from anodic stripping data. The roughness of S, the rate of surface diffusion of M atoms and the exchange current density of the M/Mz+ electrode reaction have a remarkable influence on the growth mode of the M overlayer. Rearrangements involving M-S and M-M domains leading to equilibrium at the M overlayer were deduced from voltammetric data. The rate of these rearrangements depends mainly on the surface diffusion of M atoms. Correlations between the charge related to M-S domains and ∆Hs, the enthalpy of sublimation, and Tm, the melting temperature of M, were established. These parameters reflect the trend of M atoms to participate in surface diffusion processes.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - Materia
-
Ciencias Exactas
Química
Metal electrodeposition
Surface diffusion
Electrode roughness
Growth modes - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/118428
Ver los metadatos del registro completo
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A comparative study of the early stages of mercury, cadmium, lead, silver and copper electrodeposition on columnar and smooth platinum electrodesMartins, María ElisaSalvarezza, Roberto CarlosArvia, Alejandro JorgeCiencias ExactasQuímicaMetal electrodepositionSurface diffusionElectrode roughnessGrowth modesThe early stages of metal (M) electrodeposition (M = Cu, Ag, Pb, Cd and Hg) on columnar and smooth Pt substrates (S) were investigated in acid solutions applying potentiodynamic techniques. At moderate and high potential scanning rates M electrodeposition on columnar substrates yields M domains which are dominated either by M-S interactions (M-S domains) or M-M interactions (M-M domains) as deduced from anodic stripping data. The roughness of S, the rate of surface diffusion of M atoms and the exchange current density of the M/M<sup>z+</sup> electrode reaction have a remarkable influence on the growth mode of the M overlayer. Rearrangements involving M-S and M-M domains leading to equilibrium at the M overlayer were deduced from voltammetric data. The rate of these rearrangements depends mainly on the surface diffusion of M atoms. Correlations between the charge related to M-S domains and ∆H<sub>s</sub>, the enthalpy of sublimation, and T<sub>m</sub>, the melting temperature of M, were established. These parameters reflect the trend of M atoms to participate in surface diffusion processes.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1996info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf244-2449http://sedici.unlp.edu.ar/handle/10915/118428enginfo:eu-repo/semantics/altIdentifier/issn/0013-4686info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:27:50Zoai:sedici.unlp.edu.ar:10915/118428Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:27:50.903SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
A comparative study of the early stages of mercury, cadmium, lead, silver and copper electrodeposition on columnar and smooth platinum electrodes |
title |
A comparative study of the early stages of mercury, cadmium, lead, silver and copper electrodeposition on columnar and smooth platinum electrodes |
spellingShingle |
A comparative study of the early stages of mercury, cadmium, lead, silver and copper electrodeposition on columnar and smooth platinum electrodes Martins, María Elisa Ciencias Exactas Química Metal electrodeposition Surface diffusion Electrode roughness Growth modes |
title_short |
A comparative study of the early stages of mercury, cadmium, lead, silver and copper electrodeposition on columnar and smooth platinum electrodes |
title_full |
A comparative study of the early stages of mercury, cadmium, lead, silver and copper electrodeposition on columnar and smooth platinum electrodes |
title_fullStr |
A comparative study of the early stages of mercury, cadmium, lead, silver and copper electrodeposition on columnar and smooth platinum electrodes |
title_full_unstemmed |
A comparative study of the early stages of mercury, cadmium, lead, silver and copper electrodeposition on columnar and smooth platinum electrodes |
title_sort |
A comparative study of the early stages of mercury, cadmium, lead, silver and copper electrodeposition on columnar and smooth platinum electrodes |
dc.creator.none.fl_str_mv |
Martins, María Elisa Salvarezza, Roberto Carlos Arvia, Alejandro Jorge |
author |
Martins, María Elisa |
author_facet |
Martins, María Elisa Salvarezza, Roberto Carlos Arvia, Alejandro Jorge |
author_role |
author |
author2 |
Salvarezza, Roberto Carlos Arvia, Alejandro Jorge |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Ciencias Exactas Química Metal electrodeposition Surface diffusion Electrode roughness Growth modes |
topic |
Ciencias Exactas Química Metal electrodeposition Surface diffusion Electrode roughness Growth modes |
dc.description.none.fl_txt_mv |
The early stages of metal (M) electrodeposition (M = Cu, Ag, Pb, Cd and Hg) on columnar and smooth Pt substrates (S) were investigated in acid solutions applying potentiodynamic techniques. At moderate and high potential scanning rates M electrodeposition on columnar substrates yields M domains which are dominated either by M-S interactions (M-S domains) or M-M interactions (M-M domains) as deduced from anodic stripping data. The roughness of S, the rate of surface diffusion of M atoms and the exchange current density of the M/M<sup>z+</sup> electrode reaction have a remarkable influence on the growth mode of the M overlayer. Rearrangements involving M-S and M-M domains leading to equilibrium at the M overlayer were deduced from voltammetric data. The rate of these rearrangements depends mainly on the surface diffusion of M atoms. Correlations between the charge related to M-S domains and ∆H<sub>s</sub>, the enthalpy of sublimation, and T<sub>m</sub>, the melting temperature of M, were established. These parameters reflect the trend of M atoms to participate in surface diffusion processes. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas |
description |
The early stages of metal (M) electrodeposition (M = Cu, Ag, Pb, Cd and Hg) on columnar and smooth Pt substrates (S) were investigated in acid solutions applying potentiodynamic techniques. At moderate and high potential scanning rates M electrodeposition on columnar substrates yields M domains which are dominated either by M-S interactions (M-S domains) or M-M interactions (M-M domains) as deduced from anodic stripping data. The roughness of S, the rate of surface diffusion of M atoms and the exchange current density of the M/M<sup>z+</sup> electrode reaction have a remarkable influence on the growth mode of the M overlayer. Rearrangements involving M-S and M-M domains leading to equilibrium at the M overlayer were deduced from voltammetric data. The rate of these rearrangements depends mainly on the surface diffusion of M atoms. Correlations between the charge related to M-S domains and ∆H<sub>s</sub>, the enthalpy of sublimation, and T<sub>m</sub>, the melting temperature of M, were established. These parameters reflect the trend of M atoms to participate in surface diffusion processes. |
publishDate |
1996 |
dc.date.none.fl_str_mv |
1996 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/118428 |
url |
http://sedici.unlp.edu.ar/handle/10915/118428 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0013-4686 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf 244-2449 |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
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SEDICI (UNLP) |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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