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A study of the initial stages of iron passivation in neutral solutions using the quartz crystal resonator technique
Russian Academy of Sciences, Russia.
Russian Academy of Sciences, Russia.
Russian Academy of Sciences, Russia.
Russian Academy of Sciences, Russia.
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2016 (English)In: Protection of Metals and Physical Chemistry of Surfaces, ISSN 2070-2051, Vol. 52, no 5, p. 936-946Article in journal (Refereed) Published
Abstract [en]

The initial period of growth of a passive film of iron in borate solutions (pH 7.4 and 6.7) is studied using the quartz crystal resonator technique (EQSN) and pulsed chronoamperometry. Dependences of the surface layer thickness on time are obtained at the metal passivation and prepassivation potentials. Regions corresponding to different stages of passive layer formation are found in anodic current transients, which allowed the ambiguous effect of atomic hydrogen on kinetics of hydrogenated iron dissolution to be explained. It is shown that the iron hydrogenation promoter prevents formation of a primary passive film by accelerating iron dissolution at prepassivation potentials.

Place, publisher, year, edition, pages
Maik Nauka Publishing / Springer SBM , 2016. Vol. 52, no 5, p. 936-946
Keywords [en]
Chronoamperometry, Crystal resonators, Dissolution, Film growth, Hydrogenation, Passivation, Quartz, Resonators, Anodic currents, Atomic hydrogen, Borate solutions, Different stages, Iron dissolution, Iron passivation, Neutral solution, Quartz crystal resonator, Iron
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40026DOI: 10.1134/S2070205116030205Scopus ID: 2-s2.0-84987962069OAI: oai:DiVA.org:ri-40026DiVA, id: diva2:1359344
Available from: 2019-10-09 Created: 2019-10-09 Last updated: 2019-10-16Bibliographically approved

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