Effect of zirconium-based conversion treatments of zinc, aluminium and magnesium on the chemisorption of ester-functionalized molecules

L. I. Fockaert; S. Pletincx; B. Boelen; T. Hauffman; H. Terryn; J. M.C. Mol

doi:10.1016/j.apsusc.2019.145199

Effect of zirconium-based conversion treatments of zinc, aluminium and magnesium on the chemisorption of ester-functionalized molecules

L. I. Fockaert, S. Pletincx, B. Boelen, T. Hauffman, H. Terryn, J. M.C. Mol^*

^*Corresponding author for this work

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Abstract

The effect of zirconium-based conversion of thermally vaporized zinc, aluminium and magnesium on the chemisorption of dimethylsuccinate was studied using attenuated total reflection – Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) analysis. Two competing chemisorption mechanisms contribute to interfacial bond formation. Hydrogen interactions on one hand were shown to occur between metal hydroxides and non-hydrolysed ester-groups of the molecule. On the other hand, both native and zirconium-treated substrates were shown to form interfacial carboxylate bonds with dimethylsuccinate, evidencing their capability of hydrolysing ester groups towards more reactive acid groups. Both interactions were shown to correlate to the metal oxide acid-base properties.

Original language	English
Article number	145199
Number of pages	11
Journal	Applied Surface Science
Volume	508
DOIs	https://doi.org/10.1016/j.apsusc.2019.145199
Publication status	Published - 2020

Keywords

ATR-FTIR Kretschmann
Esters
Metal-molecule interaction
XPS
Zr-based conversion

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10.1016/j.apsusc.2019.145199

1-s2.0-S0169433219340164-mainFinal published version, 3.96 MBLicence: CC BY

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title = "Effect of zirconium-based conversion treatments of zinc, aluminium and magnesium on the chemisorption of ester-functionalized molecules",

abstract = "The effect of zirconium-based conversion of thermally vaporized zinc, aluminium and magnesium on the chemisorption of dimethylsuccinate was studied using attenuated total reflection – Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) analysis. Two competing chemisorption mechanisms contribute to interfacial bond formation. Hydrogen interactions on one hand were shown to occur between metal hydroxides and non-hydrolysed ester-groups of the molecule. On the other hand, both native and zirconium-treated substrates were shown to form interfacial carboxylate bonds with dimethylsuccinate, evidencing their capability of hydrolysing ester groups towards more reactive acid groups. Both interactions were shown to correlate to the metal oxide acid-base properties.",

keywords = "ATR-FTIR Kretschmann, Esters, Metal-molecule interaction, XPS, Zr-based conversion",

author = "Fockaert, {L. I.} and S. Pletincx and B. Boelen and T. Hauffman and H. Terryn and Mol, {J. M.C.}",

year = "2020",

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language = "English",

volume = "508",

journal = "Applied Surface Science",

issn = "0169-4332",

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TY - JOUR

T1 - Effect of zirconium-based conversion treatments of zinc, aluminium and magnesium on the chemisorption of ester-functionalized molecules

AU - Fockaert, L. I.

AU - Pletincx, S.

AU - Boelen, B.

AU - Hauffman, T.

AU - Terryn, H.

AU - Mol, J. M.C.

PY - 2020

Y1 - 2020

N2 - The effect of zirconium-based conversion of thermally vaporized zinc, aluminium and magnesium on the chemisorption of dimethylsuccinate was studied using attenuated total reflection – Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) analysis. Two competing chemisorption mechanisms contribute to interfacial bond formation. Hydrogen interactions on one hand were shown to occur between metal hydroxides and non-hydrolysed ester-groups of the molecule. On the other hand, both native and zirconium-treated substrates were shown to form interfacial carboxylate bonds with dimethylsuccinate, evidencing their capability of hydrolysing ester groups towards more reactive acid groups. Both interactions were shown to correlate to the metal oxide acid-base properties.

AB - The effect of zirconium-based conversion of thermally vaporized zinc, aluminium and magnesium on the chemisorption of dimethylsuccinate was studied using attenuated total reflection – Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) analysis. Two competing chemisorption mechanisms contribute to interfacial bond formation. Hydrogen interactions on one hand were shown to occur between metal hydroxides and non-hydrolysed ester-groups of the molecule. On the other hand, both native and zirconium-treated substrates were shown to form interfacial carboxylate bonds with dimethylsuccinate, evidencing their capability of hydrolysing ester groups towards more reactive acid groups. Both interactions were shown to correlate to the metal oxide acid-base properties.

KW - ATR-FTIR Kretschmann

KW - Esters

KW - Metal-molecule interaction

KW - XPS

KW - Zr-based conversion

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U2 - 10.1016/j.apsusc.2019.145199

DO - 10.1016/j.apsusc.2019.145199

M3 - Article

AN - SCOPUS:85077343415

SN - 0169-4332

VL - 508

JO - Applied Surface Science

JF - Applied Surface Science

M1 - 145199

ER -

Effect of zirconium-based conversion treatments of zinc, aluminium and magnesium on the chemisorption of ester-functionalized molecules

Abstract

Keywords

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