Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture vs. complexation

Pejić, Jovanka N.; Jegdić, Bore V.; Radojković, Bojana M.; Marunkić, Dunja D.; Marinković, Aleksandar D.; Bajat, Jelena B.

doi:10.1016/j.corsci.2022.110815

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2022

Authors

Pejić, Jovanka N.
Jegdić, Bore V.
Radojković, Bojana M.
Marunkić, Dunja D.
Marinković, Aleksandar D.

Bajat, Jelena B.

Article (Published version)

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Abstract

In this work new green corrosion inhibitors based on the synthesized cerium-cysteine complex on AA7049 aluminum alloy were analyzed and compared to the mixture of CeCl3 and cysteine in 0.1 M NaCl. The complex structures were confirmed by FTIR, NMR and Elemental Analysis. It was shown that cerium was present in two oxidation states, CeIII and CeIV, when the mixture was analyzed, while there was only a CeIV oxidation state in the cerium-cysteine complex. The mechanisms of inhibitory action of the joint effect of CeCl3 and cysteine vs. their complex were proposed and analyzed in more detail.

Keywords:

Alloy / Aluminum / Rare earth elements / EIS / Polarization / Neutral inhibition

Source:
Corrosion Science, 2022, 209, 110815-

Publisher:

Elsevier Ltd

Funding / projects:

DOI: 10.1016/j.corsci.2022.110815

ISSN: 0010-938X

Scopus: 2-s2.0-85141453950

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	2

TY  - JOUR
AU  - Pejić, Jovanka N.
AU  - Jegdić, Bore V.
AU  - Radojković, Bojana M.
AU  - Marunkić, Dunja D.
AU  - Marinković, Aleksandar D.
AU  - Bajat, Jelena B.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5265
AB  - In this work new green corrosion inhibitors based on the synthesized cerium-cysteine complex on AA7049 aluminum alloy were analyzed and compared to the mixture of CeCl3 and cysteine in 0.1 M NaCl. The complex structures were confirmed by FTIR, NMR and Elemental Analysis. It was shown that cerium was present in two oxidation states, CeIII and CeIV, when the mixture was analyzed, while there was only a CeIV oxidation state in the cerium-cysteine complex. The mechanisms of inhibitory action of the joint effect of CeCl3 and cysteine vs. their complex were proposed and analyzed in more detail.
PB  - Elsevier Ltd
T2  - Corrosion Science
T1  - Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture vs. complexation
SP  - 110815
VL  - 209
DO  - 10.1016/j.corsci.2022.110815
ER  -

@article{
author = "Pejić, Jovanka N. and Jegdić, Bore V. and Radojković, Bojana M. and Marunkić, Dunja D. and Marinković, Aleksandar D. and Bajat, Jelena B.",
year = "2022",
abstract = "In this work new green corrosion inhibitors based on the synthesized cerium-cysteine complex on AA7049 aluminum alloy were analyzed and compared to the mixture of CeCl3 and cysteine in 0.1 M NaCl. The complex structures were confirmed by FTIR, NMR and Elemental Analysis. It was shown that cerium was present in two oxidation states, CeIII and CeIV, when the mixture was analyzed, while there was only a CeIV oxidation state in the cerium-cysteine complex. The mechanisms of inhibitory action of the joint effect of CeCl3 and cysteine vs. their complex were proposed and analyzed in more detail.",
publisher = "Elsevier Ltd",
journal = "Corrosion Science",
title = "Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture vs. complexation",
pages = "110815",
volume = "209",
doi = "10.1016/j.corsci.2022.110815"
}

Pejić, J. N., Jegdić, B. V., Radojković, B. M., Marunkić, D. D., Marinković, A. D.,& Bajat, J. B.. (2022). Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture vs. complexation. in Corrosion Science
Elsevier Ltd., 209, 110815.
https://doi.org/10.1016/j.corsci.2022.110815

Pejić JN, Jegdić BV, Radojković BM, Marunkić DD, Marinković AD, Bajat JB. Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture vs. complexation. in Corrosion Science. 2022;209:110815.
doi:10.1016/j.corsci.2022.110815 .

Pejić, Jovanka N., Jegdić, Bore V., Radojković, Bojana M., Marunkić, Dunja D., Marinković, Aleksandar D., Bajat, Jelena B., "Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture vs. complexation" in Corrosion Science, 209 (2022):110815,
https://doi.org/10.1016/j.corsci.2022.110815 . .