Optical and electrochemical study of the sulphide/silver system

dc.creatorJuanto, S.
dc.creatorLezna, Reynaldo Oscar
dc.creatorArvia, Alejandro Jorge
dc.date1994-01
dc.date2021-08-10T13:00:04Z
dc.date.accessioned2023-07-15T02:37:10Z
dc.date.available2023-07-15T02:37:10Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/122398
dc.identifierhttps://www.sciencedirect.com/science/article/abs/pii/0013468694850127
dc.identifierissn:0013-4686
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7462634
dc.descriptionThe 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.
dc.descriptionInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
dc.formatapplication/pdf
dc.format81-85
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)
dc.subjectCiencias Exactas
dc.subjectQuímica
dc.subjectThin films
dc.subjectSulphide electrodeposition
dc.subjectSilver tarnishing
dc.subjectPlasmons
dc.subjectElectroreflectance
dc.titleOptical and electrochemical study of the sulphide/silver system
dc.typeArticulo
dc.typeArticulo


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