Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture vs. complexation
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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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Show full item recordAbstract
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 inhibitionSource:
Corrosion Science, 2022, 209, 110815-Publisher:
- Elsevier Ltd
Funding / projects:
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-200135)
Institution/Community
Tehnološko-metalurški fakultetTY - 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 . .