Inhibitory effect of cysteine and lanthanides on AA7075-T6 in neutral NaCl solution
Authorized Users Only
2022
Authors
Pejić, JovankaRadojković, Bojana

Marunkić, Dunja
Jegdić, Bore

Stevanović, Sanja

Milošević, Milena
Bajat, Jelena

Article (Published version)

Metadata
Show full item recordAbstract
The inhibitory effect of cysteine in the presence of selected lanthanide chlorides (LaCl3, NdCl3, and CeCl3) in a neutral 0.1 M NaCl solution was analyzed. The cysteine concentration of 0.3 mM was determined as an optimal one. The resistance to general and pitting corrosion of AA7075-T6 alloy in inhibitive solutions was determined using electrochemical impedance spectroscopy and potentiodynamic polarization measurements. The surface appearance of the aluminum alloy was determined before and after corrosion tests using scanning electron microscopy/energy dispersive spectroscopy, while the presence of an inhibitory layer on the alloy surface was confirmed by X-ray photoelectron spectroscopy analysis and atomic force microscopy. The inhibitory effect of cysteine was significantly higher in the presence of all tested lanthanide chlorides, especially to pitting corrosion. The protective ability of cysteine was increased by lanthanides in the following sequence: Ln < Nd < Ce ions. The inhibi...tory effect of cysteine in the presence of cerium ions was examined in more detail as cerium ions provided the highest inhibitory effect, both to general and pitting corrosion.
Keywords:
AA7075 / AFM / EIS / green corrosion inhibitors / 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.202213330
ISSN: 0947-5117
WoS: 00081797660000
Scopus: 2-s2.0-85132965409
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Pejić, Jovanka AU - Radojković, Bojana AU - Marunkić, Dunja AU - Jegdić, Bore AU - Stevanović, Sanja AU - Milošević, Milena AU - Bajat, Jelena PY - 2022 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5171 AB - The inhibitory effect of cysteine in the presence of selected lanthanide chlorides (LaCl3, NdCl3, and CeCl3) in a neutral 0.1 M NaCl solution was analyzed. The cysteine concentration of 0.3 mM was determined as an optimal one. The resistance to general and pitting corrosion of AA7075-T6 alloy in inhibitive solutions was determined using electrochemical impedance spectroscopy and potentiodynamic polarization measurements. The surface appearance of the aluminum alloy was determined before and after corrosion tests using scanning electron microscopy/energy dispersive spectroscopy, while the presence of an inhibitory layer on the alloy surface was confirmed by X-ray photoelectron spectroscopy analysis and atomic force microscopy. The inhibitory effect of cysteine was significantly higher in the presence of all tested lanthanide chlorides, especially to pitting corrosion. The protective ability of cysteine was increased by lanthanides in the following sequence: Ln < Nd < Ce ions. The inhibitory effect of cysteine in the presence of cerium ions was examined in more detail as cerium ions provided the highest inhibitory effect, both to general and pitting corrosion. PB - John Wiley and Sons Inc T2 - Materials and Corrosion T1 - Inhibitory effect of cysteine and lanthanides on AA7075-T6 in neutral NaCl solution DO - 10.1002/maco.202213330 ER -
@article{ author = "Pejić, Jovanka and Radojković, Bojana and Marunkić, Dunja and Jegdić, Bore and Stevanović, Sanja and Milošević, Milena and Bajat, Jelena", year = "2022", abstract = "The inhibitory effect of cysteine in the presence of selected lanthanide chlorides (LaCl3, NdCl3, and CeCl3) in a neutral 0.1 M NaCl solution was analyzed. The cysteine concentration of 0.3 mM was determined as an optimal one. The resistance to general and pitting corrosion of AA7075-T6 alloy in inhibitive solutions was determined using electrochemical impedance spectroscopy and potentiodynamic polarization measurements. The surface appearance of the aluminum alloy was determined before and after corrosion tests using scanning electron microscopy/energy dispersive spectroscopy, while the presence of an inhibitory layer on the alloy surface was confirmed by X-ray photoelectron spectroscopy analysis and atomic force microscopy. The inhibitory effect of cysteine was significantly higher in the presence of all tested lanthanide chlorides, especially to pitting corrosion. The protective ability of cysteine was increased by lanthanides in the following sequence: Ln < Nd < Ce ions. The inhibitory effect of cysteine in the presence of cerium ions was examined in more detail as cerium ions provided the highest inhibitory effect, both to general and pitting corrosion.", publisher = "John Wiley and Sons Inc", journal = "Materials and Corrosion", title = "Inhibitory effect of cysteine and lanthanides on AA7075-T6 in neutral NaCl solution", doi = "10.1002/maco.202213330" }
Pejić, J., Radojković, B., Marunkić, D., Jegdić, B., Stevanović, S., Milošević, M.,& Bajat, J.. (2022). Inhibitory effect of cysteine and lanthanides on AA7075-T6 in neutral NaCl solution. in Materials and Corrosion John Wiley and Sons Inc.. https://doi.org/10.1002/maco.202213330
Pejić J, Radojković B, Marunkić D, Jegdić B, Stevanović S, Milošević M, Bajat J. Inhibitory effect of cysteine and lanthanides on AA7075-T6 in neutral NaCl solution. in Materials and Corrosion. 2022;. doi:10.1002/maco.202213330 .
Pejić, Jovanka, Radojković, Bojana, Marunkić, Dunja, Jegdić, Bore, Stevanović, Sanja, Milošević, Milena, Bajat, Jelena, "Inhibitory effect of cysteine and lanthanides on AA7075-T6 in neutral NaCl solution" in Materials and Corrosion (2022), https://doi.org/10.1002/maco.202213330 . .