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dc.contributor.authorThomas, S
dc.contributor.authorCole, IS
dc.contributor.authorSridhar, M
dc.contributor.authorBirbilis, N
dc.date.accessioned2017-11-22T07:06:34Z
dc.date.available2017-11-22T07:06:34Z
dc.date.issued2013
dc.identifier.issn0013-4686
dc.identifier.doi10.1016/j.electacta.2013.03.008
dc.identifier.urihttp://hdl.handle.net/10072/173764
dc.description.abstractPassive films nominally consist of an inner compact oxide and the outer precipitated layer. In the case of zinc (Zn), the outer layer is mainly precipitated ZnO/Zn(OH)2. Electrolyte pH controls the stability of the outer precipitated layer. In a pH 13 solution, formation of soluble Zn(OH)3− and Zn(OH)42− phases render the precipitated layer unstable increasing zinc corrosion, whereas at pH 12, the precipitated layer (ZnO/Zn(OH)2) is more stable making it an effective anodic barrier upon zinc. These precipitated oxides formed at pH 12 support cathodic reactions on their surface which in turn catalyse further oxide growth by a cathodically driven process. Focused ion beam-scanning electron microscopy (FIB-SEM) was used to support some of the electrochemical assertions, revealing the form and morphology of the passive layers that grow upon zinc exposed to alkaline solutions.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom192
dc.relation.ispartofpageto201
dc.relation.ispartofjournalElectrochimica Acta
dc.relation.ispartofvolume97
dc.subject.fieldofresearchMaterials Engineering not elsewhere classified
dc.subject.fieldofresearchPhysical Sciences
dc.subject.fieldofresearchChemical Sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode091299
dc.subject.fieldofresearchcode02
dc.subject.fieldofresearchcode03
dc.subject.fieldofresearchcode09
dc.titleRevisiting zinc passivation in alkaline solutions
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorCole, Ivan


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