Optical and electrochemical study of the sulphide/silver system
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),...
Guardado en:
| Autores principales: | , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
1994
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/122398 https://www.sciencedirect.com/science/article/abs/pii/0013468694850127 |
| Aporte de: |
| id |
I19-R120-10915-122398 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Química Thin films Sulphide electrodeposition Silver tarnishing Plasmons Electroreflectance |
| spellingShingle |
Ciencias Exactas Química Thin films Sulphide electrodeposition Silver tarnishing Plasmons Electroreflectance Juanto, S. Lezna, Reynaldo Oscar Arvia, Alejandro Jorge Optical and electrochemical study of the sulphide/silver system |
| topic_facet |
Ciencias Exactas Química Thin films Sulphide electrodeposition Silver tarnishing Plasmons Electroreflectance |
| 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. |
| format |
Articulo Articulo |
| author |
Juanto, S. Lezna, Reynaldo Oscar Arvia, Alejandro Jorge |
| author_facet |
Juanto, S. Lezna, Reynaldo Oscar Arvia, Alejandro Jorge |
| author_sort |
Juanto, S. |
| title |
Optical and electrochemical study of the sulphide/silver system |
| 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 |
| publishDate |
1994 |
| url |
http://sedici.unlp.edu.ar/handle/10915/122398 https://www.sciencedirect.com/science/article/abs/pii/0013468694850127 |
| work_keys_str_mv |
AT juantos opticalandelectrochemicalstudyofthesulphidesilversystem AT leznareynaldooscar opticalandelectrochemicalstudyofthesulphidesilversystem AT arviaalejandrojorge opticalandelectrochemicalstudyofthesulphidesilversystem |
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Repositorios |
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1764820448711802881 |