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Passive Behavior and Passivity Breakdown of AISI 304 in LiBr Solutions through Scanning Electrochemical Microscopy

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Passive Behavior and Passivity Breakdown of AISI 304 in LiBr Solutions through Scanning Electrochemical Microscopy

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dc.contributor.author Fernández Domene, Ramón Manuel
dc.contributor.author Sánchez Tovar, Rita
dc.contributor.author Garcia-Anton, Jose
dc.date.accessioned 2021-01-08T11:51:12Z
dc.date.available 2021-01-08T11:51:12Z
dc.date.issued 2014
dc.identifier.citation Fernández Domene, Ramón Manuel Sánchez Tovar, Rita García-Antón, Jose 2014 Passive Behavior and Passivity Breakdown of AISI 304 in LiBr Solutions through Scanning Electrochemical Microscopy Journal of the Electrochemical Society 161 12 C565 C572
dc.identifier.uri https://hdl.handle.net/10550/76911
dc.description.abstract The passive behavior and passivity breakdown of AISI 304 stainless steel in LiBr solutions has been investigated by means of scanning electrochemical microscopy (SECM). The sample generation - tip collection (SG-TC) mode was used to operate the SECM and the tip potential was biased to detect the electroactive species. The evolution of the current at the ultramicroelectrode tip with the applied potential within the passive range was followed at different LiBr concentrations. Results show that the absolute value of the current at the tip increases with the applied potential. Additionally, SECM was also used to detect stable pits formed on the stainless steel surface in a 0.2 M LiBr solution. The results show clear evidence of the presence of high amounts of other reducible species (metal cations) apart from oxygen. Also, the dish-shape morphology of the pits observed using Confocal Laser Scanning Microscopy will be discussed in relation to the kinetics of the reactions observed using SECM.
dc.language.iso eng
dc.relation.ispartof Journal of the Electrochemical Society, 2014, vol. 161, num. 12, p. C565-C572
dc.subject Electroquímica
dc.subject Acer Corrosió
dc.title Passive Behavior and Passivity Breakdown of AISI 304 in LiBr Solutions through Scanning Electrochemical Microscopy
dc.type journal article es_ES
dc.date.updated 2021-01-08T11:51:12Z
dc.identifier.doi 10.1149/2.1051412jes
dc.identifier.idgrec 140754
dc.rights.accessRights open access es_ES

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