<div class="csl-bib-body">
<div class="csl-entry">Dworschak, D., Brunnhofer, C., & Valtiner, M. (2021). <i>Complementary electrochemical ICP-MS flow cell and in-situ AFM study of the anodic desorption of molecular adhesion promotors</i>. https://doi.org/10.34726/1483</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/18447
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dc.identifier.uri
https://doi.org/10.34726/1483
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dc.description
Preprint version of article Dworschak, D., Brunnhofer, C., & Valtiner, M. (2021). Complementary electrochemical ICP-MS flow cell and in-situ AFM study of the anodic desorption of molecular adhesion promotors. Applied Surface Science, 570, 151015. https://doi.org/10.1016/j.apsusc.2021.151015
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dc.description.abstract
Molecular adhesion promoters are a central component of modern coating systems for the corrosion protection of structural materials. They are interface active and form ultrathin corrosion inhibiting and adhesion-promoting layers. Here we utilize thiol-based self-assembled monolayers (SAMs) as model system for demonstrating a comprehensive combinatorial approach to understand molecular level corrosion protection mechanisms under anodic polarization. Specifically, we compare hydrophilic 11-Mercapto-1-undecanol and hydrophobic 1-Undecanethiol SAMs and their gold-dissolution inhibiting properties. We can show that the intermolecular forces (hydrophobic vs hydrophilic effects) control how SAM layers perform under oxidative conditions. Specifically, using in situ electrochemical AFM and a flow cell coupled to an ICP-MS a complementary view on both corrosion resistance, as well as on changes in surface morphology/adhesion of the SAM is possible. Protection from oxidative dissolution is higher with hydrophobic SAMs, which detach under micelle formation, while the hydrophilic SAM exhibits lower protective effects on gold dissolution rates, although it stays intact as highly mobile layer under anodic polarization. The developed multi-technique approach will prove useful for studying the interfacial activity and corrosion suppression mechanism of inhibiting molecules on other metals and alloys.
en
dc.description.sponsorship
Europäischer Forschungsrat (ERC)
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dc.language.iso
en
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dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
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dc.subject
AFM
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dc.subject
adhesion
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dc.subject
electrochemistry
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dc.title
Complementary electrochemical ICP-MS flow cell and in-situ AFM study of the anodic desorption of molecular adhesion promotors
en
dc.type
Preprint
en
dc.type
Preprint
de
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
en
dc.rights.license
Creative Commons Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International
de
dc.identifier.doi
10.34726/1483
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dc.relation.grantno
677663
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dc.rights.holder
Markus Valtiner/E134
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tuw.project.title
Ein molekularer Grenzflächenansatz: Dekodierung von einzelnen molekularen Reaktionen und Wechselwirkungen an dynamischen Fest-Flüssigkeitsgrenzflächen