Scanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes

dc.creatorGómez, J.
dc.creatorVásquez, L.
dc.creatorBaró, A. M.
dc.creatorPerdriel, Carlos L.
dc.creatorArvia, Alejandro Jorge
dc.date1989-05
dc.date2021-10-13T13:54:27Z
dc.date.accessioned2023-07-15T03:42:17Z
dc.date.available2023-07-15T03:42:17Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/126545
dc.identifierhttps://www.sciencedirect.com/science/article/abs/pii/0013468689850042
dc.identifierissn:0013-4686
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7466727
dc.descriptionA first attempt to establish a direct correlation between ex situ scanning tunneling microscopy imaging and voltammetric features of gold electrodes is presented. For this purpose gold microelectrodes, either polyfacetted or electrochemically were used. The STM topography of polyfacetted gold micro- electrodes exhibits flat domains and regions with a number of different defects, whereas that of electrofacetted gold presents a parallel ridge-like structure of a few atoms height together with other types of defects. Lead UPD and voltammetric stripping reactions for the O-electrodesorption reactions both in acid solution were selected as test reactions. The correlation between STM topography and voltammetry data supports qualitatively the assignments made for lead UPD peaks resulting on different gold single crystal surfaces.
dc.descriptionInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
dc.formatapplication/pdf
dc.format619-624
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.subjectscanning tunneling microscopy
dc.subjectgold electrodes
dc.titleScanning tunneling microscopy and electrochemical response of electrofacetted gold electrodes
dc.typeArticulo
dc.typeArticulo


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