TY  - JOUR
AU  - Stevanović, Sanja I.
AU  - Lekka, Maria
AU  - Lanzutti, Alex
AU  - Tasić, Nikola
AU  - Živković, Ljiljana S.
AU  - Fedrizzi, Lorenzo
AU  - Bajat, Jelena B.
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1377
AB  - Cerium-based conversion coatings have emerged as promising green alternatives to the harmful chromium-based ones, but the mechanism of corrosive protection still remains a subject of academic and industrial research. This study focuses at small scale phenomena of corrosion inhibition imparted by ceria (CeO2) to AA7075. Ceria nanoparticles were deposited from diluted and concentrated CeO2 sols by immersion. A multi-analytical approach, combining Atomic Force microscopy (AFM), Scanning Kelvin Probe Force Microscopy, Glow Discharge Optical Emission Spectroscopy, open circuit potential and electrochemical impedance spectroscopy was employed. Deposition of ceria films led to deactivation of cathodic sites, i.e. decreased Volta potential difference, resulting in increased corrosion inhibition. In situ AFM real-time monitoring revealed that during exposure to NaCl electrolyte, the changes in size of deposited ceria aggregates occurred: nanoparticles disintegrated/desorbed and re-deposited at the coating surface. The process was found to be dynamic in nature. Small particles size and inherent reactivity are believed to accelerate this phenomenon. Due to the greater CeO2 reservoir, this phenomenon was more pronounced with a thicker film, imparting longer term protection.
PB  - Electrochemical Soc Inc, Pennington
T2  - Journal of the Electrochemical Society
T1  - Real-Time AFM and Impedance Corrosion Monitoring of Environmentally Friendly Ceria Films on AA7075
IS  - 10
VL  - 167
DO  - 10.1149/1945-7111/ab98af
ER  - 

@article{
author = "Stevanović, Sanja I. and Lekka, Maria and Lanzutti, Alex and Tasić, Nikola and Živković, Ljiljana S. and Fedrizzi, Lorenzo and Bajat, Jelena B.",
year = "2020",
abstract = "Cerium-based conversion coatings have emerged as promising green alternatives to the harmful chromium-based ones, but the mechanism of corrosive protection still remains a subject of academic and industrial research. This study focuses at small scale phenomena of corrosion inhibition imparted by ceria (CeO2) to AA7075. Ceria nanoparticles were deposited from diluted and concentrated CeO2 sols by immersion. A multi-analytical approach, combining Atomic Force microscopy (AFM), Scanning Kelvin Probe Force Microscopy, Glow Discharge Optical Emission Spectroscopy, open circuit potential and electrochemical impedance spectroscopy was employed. Deposition of ceria films led to deactivation of cathodic sites, i.e. decreased Volta potential difference, resulting in increased corrosion inhibition. In situ AFM real-time monitoring revealed that during exposure to NaCl electrolyte, the changes in size of deposited ceria aggregates occurred: nanoparticles disintegrated/desorbed and re-deposited at the coating surface. The process was found to be dynamic in nature. Small particles size and inherent reactivity are believed to accelerate this phenomenon. Due to the greater CeO2 reservoir, this phenomenon was more pronounced with a thicker film, imparting longer term protection.",
publisher = "Electrochemical Soc Inc, Pennington",
journal = "Journal of the Electrochemical Society",
title = "Real-Time AFM and Impedance Corrosion Monitoring of Environmentally Friendly Ceria Films on AA7075",
number = "10",
volume = "167",
doi = "10.1149/1945-7111/ab98af"
}

Stevanović, S. I., Lekka, M., Lanzutti, A., Tasić, N., Živković, L. S., Fedrizzi, L.,& Bajat, J. B.. (2020). Real-Time AFM and Impedance Corrosion Monitoring of Environmentally Friendly Ceria Films on AA7075. in Journal of the Electrochemical Society
Electrochemical Soc Inc, Pennington., 167(10).
https://doi.org/10.1149/1945-7111/ab98af

Stevanović SI, Lekka M, Lanzutti A, Tasić N, Živković LS, Fedrizzi L, Bajat JB. Real-Time AFM and Impedance Corrosion Monitoring of Environmentally Friendly Ceria Films on AA7075. in Journal of the Electrochemical Society. 2020;167(10).
doi:10.1149/1945-7111/ab98af .

Stevanović, Sanja I., Lekka, Maria, Lanzutti, Alex, Tasić, Nikola, Živković, Ljiljana S., Fedrizzi, Lorenzo, Bajat, Jelena B., "Real-Time AFM and Impedance Corrosion Monitoring of Environmentally Friendly Ceria Films on AA7075" in Journal of the Electrochemical Society, 167, no. 10 (2020),
https://doi.org/10.1149/1945-7111/ab98af . .

TY  - JOUR
AU  - Bucko, Mihael M
AU  - Rogan, Jelena
AU  - Jokic, Bojan M
AU  - Mitrić, Miodrag
AU  - Lačnjevac, Uroš
AU  - Bajat, Jelena B.
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/666
AB  - The Zn-Mn alloy electrodeposition on a steel electrode in chloride electrolyte was investigated with the aim of obtaining deposits with as high as possible Mn percent. It was found that the deposition current density and concentration of Mn2+ ion in the chloride electrolyte significantly affect the Mn content in the alloy coating as well as the coating surface morphology. There was a transition from dendritic and spongy to smooth, bright, and amorphous structure of Zn-Mn deposits, when some critical deposition current density was reached, probably due to the metal oxyhydroxide inclusion in the coatings. Several plating additives were tested in order to decrease the hydroxide content and to improve surface appearance of the deposits. The 4-hydroxy-benzaldehyde was found to decrease oxygen and increase Mn percent in the coatings, and to significantly improve their surface morphology.
PB  - Springer, New York
T2  - Journal of Solid State Electrochemistry
T1  - Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte
EP  - 1419
IS  - 5
SP  - 1409
VL  - 17
DO  - 10.1007/s10008-013-2004-8
ER  - 

@article{
author = "Bucko, Mihael M and Rogan, Jelena and Jokic, Bojan M and Mitrić, Miodrag and Lačnjevac, Uroš and Bajat, Jelena B.",
year = "2013",
abstract = "The Zn-Mn alloy electrodeposition on a steel electrode in chloride electrolyte was investigated with the aim of obtaining deposits with as high as possible Mn percent. It was found that the deposition current density and concentration of Mn2+ ion in the chloride electrolyte significantly affect the Mn content in the alloy coating as well as the coating surface morphology. There was a transition from dendritic and spongy to smooth, bright, and amorphous structure of Zn-Mn deposits, when some critical deposition current density was reached, probably due to the metal oxyhydroxide inclusion in the coatings. Several plating additives were tested in order to decrease the hydroxide content and to improve surface appearance of the deposits. The 4-hydroxy-benzaldehyde was found to decrease oxygen and increase Mn percent in the coatings, and to significantly improve their surface morphology.",
publisher = "Springer, New York",
journal = "Journal of Solid State Electrochemistry",
title = "Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte",
pages = "1419-1409",
number = "5",
volume = "17",
doi = "10.1007/s10008-013-2004-8"
}

Bucko, M. M., Rogan, J., Jokic, B. M., Mitrić, M., Lačnjevac, U.,& Bajat, J. B.. (2013). Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte. in Journal of Solid State Electrochemistry
Springer, New York., 17(5), 1409-1419.
https://doi.org/10.1007/s10008-013-2004-8

Bucko MM, Rogan J, Jokic BM, Mitrić M, Lačnjevac U, Bajat JB. Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte. in Journal of Solid State Electrochemistry. 2013;17(5):1409-1419.
doi:10.1007/s10008-013-2004-8 .

Bucko, Mihael M, Rogan, Jelena, Jokic, Bojan M, Mitrić, Miodrag, Lačnjevac, Uroš, Bajat, Jelena B., "Electrodeposition of Zn-Mn alloys at high current densities from chloride electrolyte" in Journal of Solid State Electrochemistry, 17, no. 5 (2013):1409-1419,
https://doi.org/10.1007/s10008-013-2004-8 . .

TY  - JOUR
AU  - Bucko, Mihael M
AU  - Lačnjevac, Uroš
AU  - Bajat, Jelena B.
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/643
AB  - Additives are necessary in the electrodeposition of Zn-Mn alloys at high current densities, in order to reduce the hydrogen evolution reaction and prevent dendrite formation. The influences of two aromatic aldehydes, 4-hydroxy-benzaldehyde and 3,4-dimethoxy-benzaldehyde, as additives in the Zn-Mn plating electrolyte, were examined in this study. The characterization of the coatings by scanning electron microscopy and X-ray energy dispersive spectroscopy, as well as an examination of the effect of the additives by electrochemical methods, indicated a complex involvement of additive molecules in hydrogen evolution, as well as in Zn2+ and Mn2+ reduction. Consequently, a levelling action could be achieved and the chemical composition of the Zn-Mn alloy tailored by the addition of the proper type and concentration of additive in the plating electrolyte.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - The influence of substituted aromatic aldehydes on the electrodeposition of Zn-Mn alloy
EP  - 1581
IS  - 10
SP  - 1569
VL  - 78
DO  - 10.2298/JSC130118025B
ER  - 

@article{
author = "Bucko, Mihael M and Lačnjevac, Uroš and Bajat, Jelena B.",
year = "2013",
abstract = "Additives are necessary in the electrodeposition of Zn-Mn alloys at high current densities, in order to reduce the hydrogen evolution reaction and prevent dendrite formation. The influences of two aromatic aldehydes, 4-hydroxy-benzaldehyde and 3,4-dimethoxy-benzaldehyde, as additives in the Zn-Mn plating electrolyte, were examined in this study. The characterization of the coatings by scanning electron microscopy and X-ray energy dispersive spectroscopy, as well as an examination of the effect of the additives by electrochemical methods, indicated a complex involvement of additive molecules in hydrogen evolution, as well as in Zn2+ and Mn2+ reduction. Consequently, a levelling action could be achieved and the chemical composition of the Zn-Mn alloy tailored by the addition of the proper type and concentration of additive in the plating electrolyte.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "The influence of substituted aromatic aldehydes on the electrodeposition of Zn-Mn alloy",
pages = "1581-1569",
number = "10",
volume = "78",
doi = "10.2298/JSC130118025B"
}

Bucko, M. M., Lačnjevac, U.,& Bajat, J. B.. (2013). The influence of substituted aromatic aldehydes on the electrodeposition of Zn-Mn alloy. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 78(10), 1569-1581.
https://doi.org/10.2298/JSC130118025B

Bucko MM, Lačnjevac U, Bajat JB. The influence of substituted aromatic aldehydes on the electrodeposition of Zn-Mn alloy. in Journal of the Serbian Chemical Society. 2013;78(10):1569-1581.
doi:10.2298/JSC130118025B .

Bucko, Mihael M, Lačnjevac, Uroš, Bajat, Jelena B., "The influence of substituted aromatic aldehydes on the electrodeposition of Zn-Mn alloy" in Journal of the Serbian Chemical Society, 78, no. 10 (2013):1569-1581,
https://doi.org/10.2298/JSC130118025B . .