Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution
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2022
Authors
Radojković, Bojana
Marunkić, Dunja
Milošević, Milena
Grubišić, Sonja

Pejić, Jovanka
Jegdić, Bore

Marinković, Aleksandar

Article (Published version)

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Green corrosion inhibitors, Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate, were tested in NaCl solution with the aim to evaluate their inhibitory effect on 7049 aluminum alloy and to propose a mechanism of their inhibitive action. Corrosion properties of the formed inhibitor layer were analyzed using electrochemical impedance spectroscopy, while the pit formation resistance was analyzed using potentiodynamic polarization tests. Morphology of the formed pits was evaluated by scanning electron microscope/energy-dispersive spectroscopy analysis. It was shown that Ce(III) propionate in NaCl solution has a noticeably higher protective ability than Ce(III) chloride and Ce(III) nitrate. The presence of cerium, propionate anions, and Al–O bonds in the inhibitive layer on the 7049 aluminum alloy surface was confirmed by X-ray photoelectron spectroscopy analysis. This indicates the formation of Ce propionate complexes and bonds via oxygen atoms from carboxylate anions with the metal ...surface. Density-functional theory methods were used for the geometry optimization of possible Ce propionate complexes as corrosion inhibitors.
Keywords:
aluminum alloy / corrosion inhibitors / DFT / EIS / XPSSource:
Materials and Corrosion, 2022Publisher:
- John Wiley and Sons Inc
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)
DOI: 10.1002/maco.202213177
ISSN: 0947-5117
WoS: 00079043220000
Scopus: 2-s2.0-85129279836
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Radojković, Bojana AU - Marunkić, Dunja AU - Milošević, Milena AU - Grubišić, Sonja AU - Pejić, Jovanka AU - Jegdić, Bore AU - Marinković, Aleksandar PY - 2022 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5134 AB - Green corrosion inhibitors, Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate, were tested in NaCl solution with the aim to evaluate their inhibitory effect on 7049 aluminum alloy and to propose a mechanism of their inhibitive action. Corrosion properties of the formed inhibitor layer were analyzed using electrochemical impedance spectroscopy, while the pit formation resistance was analyzed using potentiodynamic polarization tests. Morphology of the formed pits was evaluated by scanning electron microscope/energy-dispersive spectroscopy analysis. It was shown that Ce(III) propionate in NaCl solution has a noticeably higher protective ability than Ce(III) chloride and Ce(III) nitrate. The presence of cerium, propionate anions, and Al–O bonds in the inhibitive layer on the 7049 aluminum alloy surface was confirmed by X-ray photoelectron spectroscopy analysis. This indicates the formation of Ce propionate complexes and bonds via oxygen atoms from carboxylate anions with the metal surface. Density-functional theory methods were used for the geometry optimization of possible Ce propionate complexes as corrosion inhibitors. PB - John Wiley and Sons Inc T2 - Materials and Corrosion T1 - Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution DO - 10.1002/maco.202213177 ER -
@article{ author = "Radojković, Bojana and Marunkić, Dunja and Milošević, Milena and Grubišić, Sonja and Pejić, Jovanka and Jegdić, Bore and Marinković, Aleksandar", year = "2022", abstract = "Green corrosion inhibitors, Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate, were tested in NaCl solution with the aim to evaluate their inhibitory effect on 7049 aluminum alloy and to propose a mechanism of their inhibitive action. Corrosion properties of the formed inhibitor layer were analyzed using electrochemical impedance spectroscopy, while the pit formation resistance was analyzed using potentiodynamic polarization tests. Morphology of the formed pits was evaluated by scanning electron microscope/energy-dispersive spectroscopy analysis. It was shown that Ce(III) propionate in NaCl solution has a noticeably higher protective ability than Ce(III) chloride and Ce(III) nitrate. The presence of cerium, propionate anions, and Al–O bonds in the inhibitive layer on the 7049 aluminum alloy surface was confirmed by X-ray photoelectron spectroscopy analysis. This indicates the formation of Ce propionate complexes and bonds via oxygen atoms from carboxylate anions with the metal surface. Density-functional theory methods were used for the geometry optimization of possible Ce propionate complexes as corrosion inhibitors.", publisher = "John Wiley and Sons Inc", journal = "Materials and Corrosion", title = "Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution", doi = "10.1002/maco.202213177" }
Radojković, B., Marunkić, D., Milošević, M., Grubišić, S., Pejić, J., Jegdić, B.,& Marinković, A.. (2022). Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution. in Materials and Corrosion John Wiley and Sons Inc.. https://doi.org/10.1002/maco.202213177
Radojković B, Marunkić D, Milošević M, Grubišić S, Pejić J, Jegdić B, Marinković A. Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution. in Materials and Corrosion. 2022;. doi:10.1002/maco.202213177 .
Radojković, Bojana, Marunkić, Dunja, Milošević, Milena, Grubišić, Sonja, Pejić, Jovanka, Jegdić, Bore, Marinković, Aleksandar, "Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution" in Materials and Corrosion (2022), https://doi.org/10.1002/maco.202213177 . .