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Effect of the pH in the growth of benzotriazole model layers at realistic environmental conditions

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Grillo_2018_CS_EffectpH_AAM.pdf (975.6Kb)
Date
01/10/2018
Author
Mirarco, Andrea
Francis, Stephen M.
Baddeley, Christopher J.
Glisenti, Antonella
Grillo, Federico
Keywords
Copper
STM
XPS
Passive films
Oxidation
QD Chemistry
DAS
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Abstract
The growth of benzotriazole (BTAH) via solution deposition onto copper monolayers prepared via underpotential deposition (UPD) on Au(111)/mica substrates has been investigated using X-ray photoelectron spectroscopy (XPS) and ambient scanning tunnelling microscopy (STM) as a function of solution pH and immersion time. Adsorbed species have been found sensitive to the solution pH with a higher benzotriazole surface concentration following deposition from an acidic environment. Although the layers prepared at different pH are chemically different, as highlighted by XPS, similar morphologies are recorded via STM. These results are critically discussed in the light of some of the adsorption models previously reported.
Citation
Mirarco , A , Francis , S M , Baddeley , C J , Glisenti , A & Grillo , F 2018 , ' Effect of the pH in the growth of benzotriazole model layers at realistic environmental conditions ' , Corrosion Science , vol. 143 , pp. 107-115 . https://doi.org/10.1016/j.corsci.2018.08.008
Publication
Corrosion Science
Status
Peer reviewed
DOI
https://doi.org/10.1016/j.corsci.2018.08.008
ISSN
0010-938X
Type
Journal article
Rights
© 2018 Elsevier Ltd. This work has been made available online in accordance with the publisher’s policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.corsci.2018.08.008
Description
A. M. acknowledges financial support from the Erasmus+ for Traineeship programme of the European Union - Academic Year 2014/2015.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/18316

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