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dc.contributor.authorSouto, Ricardo Manuel 
dc.contributor.authorIzquierdo Pérez, Javier 
dc.contributor.authorNagy, Lívia
dc.contributor.authorBitter, István
dc.contributor.authorNagy, Géza
dc.date.accessioned2020-03-31T06:06:31Z
dc.date.available2020-03-31T06:06:31Z
dc.date.issued2013
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/19170
dc.description.abstractThe applicability of scanning electrochemical microscopy for the local detection and quantification of relevant species participating in the corrosion of magnesium-based materials is presented. The iron-magnesium galvanic pair exposed to aqueous NaCl solution was adopted as model system for this purpose. Mg2+ ion concentration and pH profiles were investigated using ion selective electrodes, containing a liquid membrane and Sb/Sb2O3 as sensor elements, respectively. Oxygen consumption at the substrate related to the cathodic reaction was also monitored with the antimony-based electrode though operated amperometrically. Data show a major production of hydroxyl anions at the cathodic sites as result of the oxygen reduction half-reaction, whereas in the vicinity of the magnesium surface pH is greatly affected by the anodic dissolution process instead. The later produces the release of metal cations accompanied by hydrogen evolution.en
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.relation.ispartofseriesElectrochimica Acta, 87, 283-293 (2013)
dc.rightsLicencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es_ES
dc.titlePotentiometric scanning electrochemical microscopy for the local characterization of the electrochemical behaviour of magnesium-based materialsen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1016/j.electacta.2012.09.029
dc.subject.keywordpotentiometric SECMen
dc.subject.keywordmagnesiumen
dc.subject.keywordpH
dc.subject.keywordion selective micropipettesen
dc.subject.keywordantimony electrodeen


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Licencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
Except where otherwise noted, this item's license is described as Licencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)