<div class="csl-bib-body">
<div class="csl-entry">Aspalter, A., Braidt, R., Duchoslav, J., Strauß, B., & Fafilek, G. (2024). Photo-induced processes on ZnO and its possible impact on cathodic delamination of organic coatings on galvanised steel. <i>Electrochimica Acta</i>, <i>494</i>, Article 144453. https://doi.org/10.1016/j.electacta.2024.144453</div>
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dc.identifier.issn
0013-4686
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/208428
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dc.description.abstract
The influence of sunlight on cathodic delamination of polymer-coated, galvanised steel is considered regarding the semiconductor properties of zinc passive layers. Zinc and galvanised steel were studied potentiostatically in O2-rich, moderate alkaline electrolyte under UV-, violet and green light. Currents increased instantaneously, intensity- and wavelength-dependant according to the photoeffect. After electrolyte preconditioning of galvanised, pre-treated and coated (6 µm) steel, light positively shifted the open-circuit-potentials (ocp). Mechanistic considerations are provided using Mott-Schottky-plots and Chopped Linear Sweep Voltammetry (CLSV). Under certain conditions, oxygen reduction reaction (ORR) intensification is found and should be considered in future studies of paint adhesion on zinc.
en
dc.description.sponsorship
VOEST-ALPINE Industrieanlagenbau GmbH & Co
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dc.language.iso
en
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dc.publisher
PERGAMON-ELSEVIER SCIENCE LTD
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dc.relation.ispartof
Electrochimica Acta
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dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
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dc.subject
Atmospheric corrosion
en
dc.subject
Organic coatings
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dc.subject
Oxygen reduction
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dc.subject
Photoelectrochemistry
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dc.subject
Zinc passive layers
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dc.title
Photo-induced processes on ZnO and its possible impact on cathodic delamination of organic coatings on galvanised steel
