A study on the voltammetric behaviour of silver on electrodispersed platinum electrodes in acid solution
- Autores
- Martins, M. M.; Salvarezza, Roberto Carlos; Arvia, Alejandro Jorge
- Año de publicación
- 1991
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The early stages of Ag electrodeposition on columnar structured Pt electrodes was investigated in acid solutions covering the underpotential deposition (upd) and overpotential deposition (opd) ranges. Results show a remarkable dependence of the Ag growth mode on the electrode roughness and potential sweep rate. At high potential sweep rates and large substrate roughness factors a 3-D to 2-D rearrangement can be detected. This process appears to be also accompanied by a Pt-Ag formation. For this type of electrode, both processes hinder the nucleation and growth of the 3-D Ag phase. Under certain conditions the complete Ag plating of the entire porous structure can be produced and the voltammetric behaviour of the system then approaches that observed for the Ag/Ag+ electrode reaction at an electrochemical thin layer cell.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - Materia
-
Química
Ciencias Exactas
Metal electrodeposition
Electrode roughness
Growth modes
Microcolumnar structured metal electrodes
Porous structures - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/118889
Ver los metadatos del registro completo
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A study on the voltammetric behaviour of silver on electrodispersed platinum electrodes in acid solutionMartins, M. M.Salvarezza, Roberto CarlosArvia, Alejandro JorgeQuímicaCiencias ExactasMetal electrodepositionElectrode roughnessGrowth modesMicrocolumnar structured metal electrodesPorous structuresThe early stages of Ag electrodeposition on columnar structured Pt electrodes was investigated in acid solutions covering the underpotential deposition (upd) and overpotential deposition (opd) ranges. Results show a remarkable dependence of the Ag growth mode on the electrode roughness and potential sweep rate. At high potential sweep rates and large substrate roughness factors a 3-D to 2-D rearrangement can be detected. This process appears to be also accompanied by a Pt-Ag formation. For this type of electrode, both processes hinder the nucleation and growth of the 3-D Ag phase. Under certain conditions the complete Ag plating of the entire porous structure can be produced and the voltammetric behaviour of the system then approaches that observed for the Ag/Ag<sup>+</sup> electrode reaction at an electrochemical thin layer cell.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1991info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1617-1622http://sedici.unlp.edu.ar/handle/10915/118889enginfo:eu-repo/semantics/altIdentifier/issn/0013-4686info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(91)85015-Yinfo: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:UNLP2025-10-22T17:08:55Zoai:sedici.unlp.edu.ar:10915/118889Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:08:55.357SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
A study on the voltammetric behaviour of silver on electrodispersed platinum electrodes in acid solution |
| title |
A study on the voltammetric behaviour of silver on electrodispersed platinum electrodes in acid solution |
| spellingShingle |
A study on the voltammetric behaviour of silver on electrodispersed platinum electrodes in acid solution Martins, M. M. Química Ciencias Exactas Metal electrodeposition Electrode roughness Growth modes Microcolumnar structured metal electrodes Porous structures |
| title_short |
A study on the voltammetric behaviour of silver on electrodispersed platinum electrodes in acid solution |
| title_full |
A study on the voltammetric behaviour of silver on electrodispersed platinum electrodes in acid solution |
| title_fullStr |
A study on the voltammetric behaviour of silver on electrodispersed platinum electrodes in acid solution |
| title_full_unstemmed |
A study on the voltammetric behaviour of silver on electrodispersed platinum electrodes in acid solution |
| title_sort |
A study on the voltammetric behaviour of silver on electrodispersed platinum electrodes in acid solution |
| dc.creator.none.fl_str_mv |
Martins, M. M. Salvarezza, Roberto Carlos Arvia, Alejandro Jorge |
| author |
Martins, M. M. |
| author_facet |
Martins, M. M. 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 |
Química Ciencias Exactas Metal electrodeposition Electrode roughness Growth modes Microcolumnar structured metal electrodes Porous structures |
| topic |
Química Ciencias Exactas Metal electrodeposition Electrode roughness Growth modes Microcolumnar structured metal electrodes Porous structures |
| dc.description.none.fl_txt_mv |
The early stages of Ag electrodeposition on columnar structured Pt electrodes was investigated in acid solutions covering the underpotential deposition (upd) and overpotential deposition (opd) ranges. Results show a remarkable dependence of the Ag growth mode on the electrode roughness and potential sweep rate. At high potential sweep rates and large substrate roughness factors a 3-D to 2-D rearrangement can be detected. This process appears to be also accompanied by a Pt-Ag formation. For this type of electrode, both processes hinder the nucleation and growth of the 3-D Ag phase. Under certain conditions the complete Ag plating of the entire porous structure can be produced and the voltammetric behaviour of the system then approaches that observed for the Ag/Ag<sup>+</sup> electrode reaction at an electrochemical thin layer cell. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas |
| description |
The early stages of Ag electrodeposition on columnar structured Pt electrodes was investigated in acid solutions covering the underpotential deposition (upd) and overpotential deposition (opd) ranges. Results show a remarkable dependence of the Ag growth mode on the electrode roughness and potential sweep rate. At high potential sweep rates and large substrate roughness factors a 3-D to 2-D rearrangement can be detected. This process appears to be also accompanied by a Pt-Ag formation. For this type of electrode, both processes hinder the nucleation and growth of the 3-D Ag phase. Under certain conditions the complete Ag plating of the entire porous structure can be produced and the voltammetric behaviour of the system then approaches that observed for the Ag/Ag<sup>+</sup> electrode reaction at an electrochemical thin layer cell. |
| publishDate |
1991 |
| dc.date.none.fl_str_mv |
1991 |
| dc.type.none.fl_str_mv |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/118889 |
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http://sedici.unlp.edu.ar/handle/10915/118889 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0013-4686 info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(91)85015-Y |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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