Optical and electrochemical study of the sulphide/silver system
- Autores
- Juanto, S.; Lezna, Reynaldo Oscar; Arvia, Alejandro Jorge
- Año de publicación
- 1994
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The behaviour of sulphide species at a silver/electrolyte interface along with the electrodeposition of thin Ag2S films have been studied by a combination of electrochemical and in situ optical methods. The potential region between −1.08 and −0.470 V (nhe), pre-peak zone, is mainly characterized by a reversible process at −0.870 V, overlapping and catalysing the her, ascribed to the formation of an Ag−(Sh−ads bond. Phase Ag2S deposits were found to fit a linear relationship between reflectance, in the blue region, and charge. The oxidation of surface Ag2S (postwave) is readily observed by differential reflectance at potentials positive of the onset of bulk Ag2S formation. The rough silver surface brought about by the reduction of Ag2S allows a strong coupling between photons and surface plasmons.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - Materia
-
Ciencias Exactas
Química
Thin films
Sulphide electrodeposition
Silver tarnishing
Plasmons
Electroreflectance - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/122398
Ver los metadatos del registro completo
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Optical and electrochemical study of the sulphide/silver systemJuanto, S.Lezna, Reynaldo OscarArvia, Alejandro JorgeCiencias ExactasQuímicaThin filmsSulphide electrodepositionSilver tarnishingPlasmonsElectroreflectanceThe behaviour of sulphide species at a silver/electrolyte interface along with the electrodeposition of thin Ag<sub>2</sub>S films have been studied by a combination of electrochemical and <i>in situ</i> optical methods. The potential region between −1.08 and −0.470 V (nhe), pre-peak zone, is mainly characterized by a reversible process at −0.870 V, overlapping and catalysing the <i>her</i>, ascribed to the formation of an Ag−(Sh−<sub>ads</sub> bond. Phase Ag<sub>2</sub>S deposits were found to fit a linear relationship between reflectance, in the blue region, and charge. The oxidation of surface Ag<sub>2</sub>S (postwave) is readily observed by differential reflectance at potentials positive of the onset of bulk Ag<sub>2</sub>S formation. The rough silver surface brought about by the reduction of Ag<sub>2</sub>S allows a strong coupling between photons and surface plasmons.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1994-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf81-85http://sedici.unlp.edu.ar/handle/10915/122398enginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/0013468694850127info:eu-repo/semantics/altIdentifier/issn/0013-4686info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(94)85012-7info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:29:08Zoai:sedici.unlp.edu.ar:10915/122398Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:29:09.166SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Optical and electrochemical study of the sulphide/silver system |
| title |
Optical and electrochemical study of the sulphide/silver system |
| spellingShingle |
Optical and electrochemical study of the sulphide/silver system Juanto, S. Ciencias Exactas Química Thin films Sulphide electrodeposition Silver tarnishing Plasmons Electroreflectance |
| title_short |
Optical and electrochemical study of the sulphide/silver system |
| title_full |
Optical and electrochemical study of the sulphide/silver system |
| title_fullStr |
Optical and electrochemical study of the sulphide/silver system |
| title_full_unstemmed |
Optical and electrochemical study of the sulphide/silver system |
| title_sort |
Optical and electrochemical study of the sulphide/silver system |
| dc.creator.none.fl_str_mv |
Juanto, S. Lezna, Reynaldo Oscar Arvia, Alejandro Jorge |
| author |
Juanto, S. |
| author_facet |
Juanto, S. Lezna, Reynaldo Oscar Arvia, Alejandro Jorge |
| author_role |
author |
| author2 |
Lezna, Reynaldo Oscar Arvia, Alejandro Jorge |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Ciencias Exactas Química Thin films Sulphide electrodeposition Silver tarnishing Plasmons Electroreflectance |
| topic |
Ciencias Exactas Química Thin films Sulphide electrodeposition Silver tarnishing Plasmons Electroreflectance |
| dc.description.none.fl_txt_mv |
The behaviour of sulphide species at a silver/electrolyte interface along with the electrodeposition of thin Ag<sub>2</sub>S films have been studied by a combination of electrochemical and <i>in situ</i> optical methods. The potential region between −1.08 and −0.470 V (nhe), pre-peak zone, is mainly characterized by a reversible process at −0.870 V, overlapping and catalysing the <i>her</i>, ascribed to the formation of an Ag−(Sh−<sub>ads</sub> bond. Phase Ag<sub>2</sub>S deposits were found to fit a linear relationship between reflectance, in the blue region, and charge. The oxidation of surface Ag<sub>2</sub>S (postwave) is readily observed by differential reflectance at potentials positive of the onset of bulk Ag<sub>2</sub>S formation. The rough silver surface brought about by the reduction of Ag<sub>2</sub>S allows a strong coupling between photons and surface plasmons. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas |
| description |
The behaviour of sulphide species at a silver/electrolyte interface along with the electrodeposition of thin Ag<sub>2</sub>S films have been studied by a combination of electrochemical and <i>in situ</i> optical methods. The potential region between −1.08 and −0.470 V (nhe), pre-peak zone, is mainly characterized by a reversible process at −0.870 V, overlapping and catalysing the <i>her</i>, ascribed to the formation of an Ag−(Sh−<sub>ads</sub> bond. Phase Ag<sub>2</sub>S deposits were found to fit a linear relationship between reflectance, in the blue region, and charge. The oxidation of surface Ag<sub>2</sub>S (postwave) is readily observed by differential reflectance at potentials positive of the onset of bulk Ag<sub>2</sub>S formation. The rough silver surface brought about by the reduction of Ag<sub>2</sub>S allows a strong coupling between photons and surface plasmons. |
| publishDate |
1994 |
| dc.date.none.fl_str_mv |
1994-01 |
| 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/10915/122398 |
| url |
http://sedici.unlp.edu.ar/handle/10915/122398 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/0013468694850127 info:eu-repo/semantics/altIdentifier/issn/0013-4686 info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(94)85012-7 |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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application/pdf 81-85 |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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