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dc.contributor.authorSouto, Ricardo Manuel 
dc.contributor.authorSantana, Juan José
dc.contributor.authorGonzález-Guzmán, Jorge
dc.contributor.authorFernández-Mérida, Luis 
dc.contributor.authorGonzález, Sergio
dc.date.accessioned2020-03-28T20:05:31Z
dc.date.available2020-03-28T20:05:31Z
dc.date.issued2010es_ES
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/19116
dc.description.abstractHerein, the redox competition mode of scanning electrochemical microscopy (RC-SECM) has been applied to in situ monitor the local reactivity arising from a circular holiday operated in a painted metal. The metal-coating system consisted of a carbon steel substrate coated with an epoxy-polyamine polymeric film containing glass flakes as pigment. The present work demonstrates the possibility to use RC-SECM for investigation of the corrosion reactions occurring when protective coatings are applied on a metal surface without the addition of a redox mediator to the experimental system. Oxygen reduction was employed to monitor the reactive metal-polymer system, though the onset of a redox competition for this redox species between the SECM tip and the bare metal inside the holiday could be found in certain conditions. Whether attack predominated inside the holiday or the system became non reactive depended on the composition of the test electrolyte, with borate ions acting as corrosion inhibitoren
dc.format.mimetypeapplication/pdf
dc.language.isoenes_ES
dc.relation.ispartofseriesElectrochimica Acta, 55, 4488-4494 (2010)es_ES
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.titleVisualization of local degradation processes in coated metals by means of scanning electrochemical microscopy in the redox competition modeen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1016/j.electacta.2010.02.091
dc.subject.keywordCorrosionen
dc.subject.keywordOrganic coatingsen
dc.subject.keywordScanning electrochemical microscopyen
dc.subject.keywordIron dissolutionen
dc.subject.keywordOxygen reductionen


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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)