|Title:||Microstructure and spatial distribution of corrosion products anodically grown on zinc in chloride solutions|
|Authors :||Prestat, Michel|
|Published in :||Electrochemistry Communications|
|Publisher / Ed. Institution :||Elsevier Inc.|
|Language :||Englisch / English|
|Subject (DDC) :||540: Chemie|
|Abstract:||Zinc substrates were electrochemically oxidized in NaCl solution to produce corrosion patinas. XRD, XPS and Raman analyses enabled the identification of simonkolleite and zinc oxide as the patina constituents. FIB-SEM imaging shows that the upper part of the patinas is a network of simonkolleite nanosheets with an open microstructure that is unlikely to act as a significant barrier for corrosion processes. STEM investigations and Raman mapping measurements reveal the presence of a ca. 20–400 nm thin nanoporous ZnO-rich film below the simonkolleite and covering the zinc substrate. Under potentiostatic conditions, the reduced cathodic activity of the patina-covered zinc electrodes is assigned to this nanoporous ZnO layer.|
|Departement:||School of Engineering|
|Organisational Unit:||Institute of Computational Physics (ICP)|
|Publication type:||Beitrag in wissenschaftlicher Zeitschrift / Article in scientific Journal|
|Type of review:||Peer review (Publikation)|
|License (according to publishing contract) :||Lizenz gemäss Verlagsvertrag / Licence according to publishing contract|
|Appears in Collections:||Publikationen School of Engineering|
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