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

Andrea Mirarco; Stephen M. Francis; Christopher J. Baddeley; Antonella Glisenti; Federico Grillo

doi:10.1016/j.corsci.2018.08.008

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

Andrea Mirarco, Stephen M. Francis, Christopher J. Baddeley, Antonella Glisenti, Federico Grillo

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	107-115
Journal	Corrosion Science
Volume	143
Early online date	15 Aug 2018
DOIs	https://doi.org/10.1016/j.corsci.2018.08.008
Publication status	Published - 1 Oct 2018

Keywords

Copper
STM
XPS
Passive films
Oxidation

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10.1016/j.corsci.2018.08.008

Grillo_2018_CS_EffectpH_AAM
© 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
Accepted author manuscript, 976 KBLicence: CC BY-NC-ND

Effect of the pH in the Growth of Benzotriazole Model Layers at Realistic Environmental Conditions (dataset)
Grillo, F. (Creator), Mirarco, A. (Creator), Francis, S. M. (Creator), Baddeley, C. J. (Creator) & Glisenti, A. (Creator), University of St Andrews, 15 Aug 2018
DOI: 10.17630/3175f32b-2508-441f-9f3e-e86c5604f076
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title = "Effect of the pH in the growth of benzotriazole model layers at realistic environmental conditions",

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. ",

keywords = "Copper, STM, XPS, Passive films, Oxidation",

author = "Andrea Mirarco and Francis, {Stephen M.} and Baddeley, {Christopher J.} and Antonella Glisenti and Federico Grillo",

note = "A. M. acknowledges financial support from the Erasmus+ for Traineeship programme of the European Union - Academic Year 2014/2015.",

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doi = "10.1016/j.corsci.2018.08.008",

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T1 - Effect of the pH in the growth of benzotriazole model layers at realistic environmental conditions

AU - Mirarco, Andrea

AU - Francis, Stephen M.

AU - Baddeley, Christopher J.

AU - Glisenti, Antonella

AU - Grillo, Federico

N1 - A. M. acknowledges financial support from the Erasmus+ for Traineeship programme of the European Union - Academic Year 2014/2015.

PY - 2018/10/1

Y1 - 2018/10/1

N2 - 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.

AB - 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.

KW - Copper

KW - STM

KW - XPS

KW - Passive films

KW - Oxidation

U2 - 10.1016/j.corsci.2018.08.008

DO - 10.1016/j.corsci.2018.08.008

M3 - Article

SN - 0010-938X

VL - 143

SP - 107

EP - 115

JO - Corrosion Science

JF - Corrosion Science

ER -

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

Abstract

Keywords

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Effect of the pH in the Growth of Benzotriazole Model Layers at Realistic Environmental Conditions (dataset)

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