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

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

doi:10.1016/j.corsci.2022.110815

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2022

Authors

Pejić, Jovanka N.

Jegdić, Bore

Radojković, Bojana

Marunkić, Dunja

Marinković, Aleksandar D.

Bajat, Jelena

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:

A: Alloy / A: Aluminum / A: Rare earth elements / B: EIS / B: Polarization / C: Neutral inhibition

Source:
Corrosion Science, 2022, 209, 110815-

Publisher:

Elsevier

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
AU  - Radojković, Bojana
AU  - Marunkić, Dunja
AU  - Marinković, Aleksandar D.
AU  - Bajat, Jelena
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5418
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
T2  - Corrosion Science
T1  - Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture  vs. complexation
VL  - 209
SP  - 110815
DO  - 10.1016/j.corsci.2022.110815
ER  -

@article{
author = "Pejić, Jovanka N. and Jegdić, Bore and Radojković, Bojana and Marunkić, Dunja and Marinković, Aleksandar D. and Bajat, Jelena",
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",
journal = "Corrosion Science",
title = "Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture  vs. complexation",
volume = "209",
pages = "110815",
doi = "10.1016/j.corsci.2022.110815"
}

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

Pejić JN, Jegdić B, Radojković B, Marunkić D, Marinković AD, Bajat J. 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, Radojković, Bojana, Marunkić, Dunja, Marinković, Aleksandar D., Bajat, Jelena, "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 . .