TY  - JOUR
AU  - Bucko, Mihael
AU  - Bajat, Jelena
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4974
AB  - Deep eutectic solvents (DESs) are a class of mixtures with melting points notably lower than those of their raw constituent components. These liquids have found a tremendously wide spectrum of applications in the last two decades of their research, so their contact and interaction with technical metals and alloys are inevitable. Therefore, the corrosivity of DESs towards metals is an extremely important topic. This review summarizes research efforts collected in the last two decades related to the corrosion rate of various metals in different DESs. Since the DESs are mainly composed of organic raw compounds, and by their physicochemical properties they may be regarded as a separate class of ionic liquids, the literature data about DESs corrosivity has been compared to the data related to the corrosivity of various organic solvents and ionic liquids as well. All the results gained until now show significantly low corrosivity of DESs. This observation is discussed in relation to the chemical composition of DESs. The absence of the oxidizing agents, the inhibitory action of organic ions and molecules, high viscosity and low electrical conductivity have been recognized as the main factors contributing to the low metal corrosion rate in DESs.
T2  - Journal of Electrochemical Science and Engineering
T1  - A review of the electrochemical corrosion of metals in choline chloride based deep eutectic solvents
DO  - 10.5599/jese.1135
ER  - 

@article{
author = "Bucko, Mihael and Bajat, Jelena",
year = "2022",
abstract = "Deep eutectic solvents (DESs) are a class of mixtures with melting points notably lower than those of their raw constituent components. These liquids have found a tremendously wide spectrum of applications in the last two decades of their research, so their contact and interaction with technical metals and alloys are inevitable. Therefore, the corrosivity of DESs towards metals is an extremely important topic. This review summarizes research efforts collected in the last two decades related to the corrosion rate of various metals in different DESs. Since the DESs are mainly composed of organic raw compounds, and by their physicochemical properties they may be regarded as a separate class of ionic liquids, the literature data about DESs corrosivity has been compared to the data related to the corrosivity of various organic solvents and ionic liquids as well. All the results gained until now show significantly low corrosivity of DESs. This observation is discussed in relation to the chemical composition of DESs. The absence of the oxidizing agents, the inhibitory action of organic ions and molecules, high viscosity and low electrical conductivity have been recognized as the main factors contributing to the low metal corrosion rate in DESs.",
journal = "Journal of Electrochemical Science and Engineering",
title = "A review of the electrochemical corrosion of metals in choline chloride based deep eutectic solvents",
doi = "10.5599/jese.1135"
}

Bucko, M.,& Bajat, J.. (2022). A review of the electrochemical corrosion of metals in choline chloride based deep eutectic solvents. in Journal of Electrochemical Science and Engineering.
https://doi.org/10.5599/jese.1135

Bucko M, Bajat J. A review of the electrochemical corrosion of metals in choline chloride based deep eutectic solvents. in Journal of Electrochemical Science and Engineering. 2022;.
doi:10.5599/jese.1135 .

Bucko, Mihael, Bajat, Jelena, "A review of the electrochemical corrosion of metals in choline chloride based deep eutectic solvents" in Journal of Electrochemical Science and Engineering (2022),
https://doi.org/10.5599/jese.1135 . .

TY  - JOUR
AU  - Ridosic, Marija
AU  - Bucko, Mihael
AU  - Salicio-Paz, Asier
AU  - Garcia-Lecina, Eva
AU  - Zivkovic, Ljiljana S.
AU  - Bajat, Jelena
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4850
AB  - Novel Zn-Co-CeO2 protective composite coatings were deposited successfully from chloride plating solutions. Two different types of ceria sources were used and compared: commercial ceria powder and home-made ceria sol. Electrodeposition was performed by a direct current in the range of 1-8 A dm(-2). Two different agitation modes were used and compared, magnetic stirring and ultrasound-assisted stirring (US). The influence of magnetic stirring on the stability of the related plating baths was evaluated via a dynamic scattering method. The results pointed to better stability of the prepared ceria sol. The morphology of the composite coatings was examined by scanning electron microscopy (SEM), and particle content was determined by energy-dispersive X-ray spectroscopy (EDS). The results showed that the increase in the deposition current density was not beneficial to the coating morphology and particle content. The corrosion behavior of the Zn-Co-CeO2 composite coatings was analyzed and compared by electrochemical impedance spectroscopy and polarization resistance. The ultrasound-assisted electrodeposition at small current densities was favorable for obtaining composite coatings with enhanced corrosion stability. The protection was more effective when US was applied and, additionally, upon utilization of ceria sol as a particle source, which was revealed by higher polarization resistance and greater low-frequency impedance modulus values for sol-derived composite coatings deposited under ultrasound.
T2  - Molecules
T1  - Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration
IS  - 15
VL  - 26
DO  - 10.3390/molecules26154578
ER  - 

@article{
author = "Ridosic, Marija and Bucko, Mihael and Salicio-Paz, Asier and Garcia-Lecina, Eva and Zivkovic, Ljiljana S. and Bajat, Jelena",
year = "2021",
abstract = "Novel Zn-Co-CeO2 protective composite coatings were deposited successfully from chloride plating solutions. Two different types of ceria sources were used and compared: commercial ceria powder and home-made ceria sol. Electrodeposition was performed by a direct current in the range of 1-8 A dm(-2). Two different agitation modes were used and compared, magnetic stirring and ultrasound-assisted stirring (US). The influence of magnetic stirring on the stability of the related plating baths was evaluated via a dynamic scattering method. The results pointed to better stability of the prepared ceria sol. The morphology of the composite coatings was examined by scanning electron microscopy (SEM), and particle content was determined by energy-dispersive X-ray spectroscopy (EDS). The results showed that the increase in the deposition current density was not beneficial to the coating morphology and particle content. The corrosion behavior of the Zn-Co-CeO2 composite coatings was analyzed and compared by electrochemical impedance spectroscopy and polarization resistance. The ultrasound-assisted electrodeposition at small current densities was favorable for obtaining composite coatings with enhanced corrosion stability. The protection was more effective when US was applied and, additionally, upon utilization of ceria sol as a particle source, which was revealed by higher polarization resistance and greater low-frequency impedance modulus values for sol-derived composite coatings deposited under ultrasound.",
journal = "Molecules",
title = "Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration",
number = "15",
volume = "26",
doi = "10.3390/molecules26154578"
}

Ridosic, M., Bucko, M., Salicio-Paz, A., Garcia-Lecina, E., Zivkovic, L. S.,& Bajat, J.. (2021). Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration. in Molecules, 26(15).
https://doi.org/10.3390/molecules26154578

Ridosic M, Bucko M, Salicio-Paz A, Garcia-Lecina E, Zivkovic LS, Bajat J. Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration. in Molecules. 2021;26(15).
doi:10.3390/molecules26154578 .

Ridosic, Marija, Bucko, Mihael, Salicio-Paz, Asier, Garcia-Lecina, Eva, Zivkovic, Ljiljana S., Bajat, Jelena, "Ceria Particles as Efficient Dopant in the Electrodeposition of Zn-Co-CeO2 Composite Coatings with Enhanced Corrosion Resistance: The Effect of Current Density and Particle Concentration" in Molecules, 26, no. 15 (2021),
https://doi.org/10.3390/molecules26154578 . .

TY  - JOUR
AU  - Bucko, Mihael
AU  - Bastos, Alexandre C.
AU  - Yasakau, Kiryl A.
AU  - Ferreira, Mario G. S.
AU  - Bajat, Jelena
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4436
AB  - Deep eutectic solvents have been widely acknowledged as ionic liquid analogues, since they share many characteristics and properties with ionic liquids. The two major application areas of deep eutectic solvents have been metal processing and synthesis media; however, plenty of other applications have already been reported and predicted for these liquids. Reline, an eutectic mixture of choline chloride and urea, is a well known representative of deep eutectic solvents. Despite their importance in the contemporary technologies, the knowledge about the corrosivity of deep eutectic solvents is remarkably scarce. This article reports the results on the corrosivity of reline towards two Al alloys, namely AA2024-T6 and AA6065-T6. To measure the corrosion rates and characterize the passive film on the alloys in reline, electrochemical impedance and inductively coupled plasma optical emission spectroscopy methods were used, and the corrosion product composition was analyzed by X-ray photoelectron spectroscopy. Surface morphology and Volta potential were imaged by scanning electron microscopy, atomic force microscopy and scanning Kelvin probe force microscopy. The corrosion tests show that the two alloys are extremely stable in reline, and the passive layer is formed in the first three hours of immersion in the corrosive media. There is no evidence that electrolyte species are incorporated into the Al oxide protective layer through chemical bonding.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline
VL  - 357
DO  - 10.1016/j.electacta.2020.136861
ER  - 

@article{
author = "Bucko, Mihael and Bastos, Alexandre C. and Yasakau, Kiryl A. and Ferreira, Mario G. S. and Bajat, Jelena",
year = "2020",
abstract = "Deep eutectic solvents have been widely acknowledged as ionic liquid analogues, since they share many characteristics and properties with ionic liquids. The two major application areas of deep eutectic solvents have been metal processing and synthesis media; however, plenty of other applications have already been reported and predicted for these liquids. Reline, an eutectic mixture of choline chloride and urea, is a well known representative of deep eutectic solvents. Despite their importance in the contemporary technologies, the knowledge about the corrosivity of deep eutectic solvents is remarkably scarce. This article reports the results on the corrosivity of reline towards two Al alloys, namely AA2024-T6 and AA6065-T6. To measure the corrosion rates and characterize the passive film on the alloys in reline, electrochemical impedance and inductively coupled plasma optical emission spectroscopy methods were used, and the corrosion product composition was analyzed by X-ray photoelectron spectroscopy. Surface morphology and Volta potential were imaged by scanning electron microscopy, atomic force microscopy and scanning Kelvin probe force microscopy. The corrosion tests show that the two alloys are extremely stable in reline, and the passive layer is formed in the first three hours of immersion in the corrosive media. There is no evidence that electrolyte species are incorporated into the Al oxide protective layer through chemical bonding.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline",
volume = "357",
doi = "10.1016/j.electacta.2020.136861"
}

Bucko, M., Bastos, A. C., Yasakau, K. A., Ferreira, M. G. S.,& Bajat, J.. (2020). Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 357.
https://doi.org/10.1016/j.electacta.2020.136861

Bucko M, Bastos AC, Yasakau KA, Ferreira MGS, Bajat J. Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline. in Electrochimica Acta. 2020;357.
doi:10.1016/j.electacta.2020.136861 .

Bucko, Mihael, Bastos, Alexandre C., Yasakau, Kiryl A., Ferreira, Mario G. S., Bajat, Jelena, "Corrosion behavior of AA2024-T6 and AA6065-T6 alloys in reline" in Electrochimica Acta, 357 (2020),
https://doi.org/10.1016/j.electacta.2020.136861 . .

TY  - JOUR
AU  - Touazi, Souad
AU  - Bucko, Mihael
AU  - Makhloufi, Laïd
AU  - Bajat, Jelena
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5909
AB  - The Zn-Mn alloy electrodeposition on steel substrate from sulfate-citrate bath was investigated using cyclic voltammetry. In a metal ion-free solution, an electrochemical analysis showed that increasing the citrate concentration induces the increase in the overpotential for hydrogen evolution reaction, with an optimum citrate concentration of 0.6 mol dm-3. Cyclic voltammograms recorded in the electrolyte with Zn2+ and Mn2+ ions, reveal that the potential of Zn-Mn alloy electrodeposition (-1670 mVSSE) stands between those of pure Zn (-1500 mVSSE) and pure Mn (-1850 mVSSE) electroreduction. The effect of [Mn2+]/[Zn2+] ratio in the electrolyte on the Mn content in the obtained Zn-Mn coatings was studied. It was found that the Mn content increases with increasing the [Mn2+]/[Zn2+] ratio in the electrolytic bath. The surface morphology and crystalline phase structure of Zn-Mn deposits were characterized by means of scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD), respectively.
PB  - Elsevier Ltd
T2  - Materials Today: Proceedings
T1  - Zn-Mn alloy coatings electrodeposited from acidic sulfate-citrate bath
EP  - 924
SP  - 919
VL  - 49
DO  - 10.1016/j.matpr.2021.05.574
ER  - 

@article{
author = "Touazi, Souad and Bucko, Mihael and Makhloufi, Laïd and Bajat, Jelena",
year = "2020",
abstract = "The Zn-Mn alloy electrodeposition on steel substrate from sulfate-citrate bath was investigated using cyclic voltammetry. In a metal ion-free solution, an electrochemical analysis showed that increasing the citrate concentration induces the increase in the overpotential for hydrogen evolution reaction, with an optimum citrate concentration of 0.6 mol dm-3. Cyclic voltammograms recorded in the electrolyte with Zn2+ and Mn2+ ions, reveal that the potential of Zn-Mn alloy electrodeposition (-1670 mVSSE) stands between those of pure Zn (-1500 mVSSE) and pure Mn (-1850 mVSSE) electroreduction. The effect of [Mn2+]/[Zn2+] ratio in the electrolyte on the Mn content in the obtained Zn-Mn coatings was studied. It was found that the Mn content increases with increasing the [Mn2+]/[Zn2+] ratio in the electrolytic bath. The surface morphology and crystalline phase structure of Zn-Mn deposits were characterized by means of scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD), respectively.",
publisher = "Elsevier Ltd",
journal = "Materials Today: Proceedings",
title = "Zn-Mn alloy coatings electrodeposited from acidic sulfate-citrate bath",
pages = "924-919",
volume = "49",
doi = "10.1016/j.matpr.2021.05.574"
}

Touazi, S., Bucko, M., Makhloufi, L.,& Bajat, J.. (2020). Zn-Mn alloy coatings electrodeposited from acidic sulfate-citrate bath. in Materials Today: Proceedings
Elsevier Ltd., 49, 919-924.
https://doi.org/10.1016/j.matpr.2021.05.574

Touazi S, Bucko M, Makhloufi L, Bajat J. Zn-Mn alloy coatings electrodeposited from acidic sulfate-citrate bath. in Materials Today: Proceedings. 2020;49:919-924.
doi:10.1016/j.matpr.2021.05.574 .

Touazi, Souad, Bucko, Mihael, Makhloufi, Laïd, Bajat, Jelena, "Zn-Mn alloy coatings electrodeposited from acidic sulfate-citrate bath" in Materials Today: Proceedings, 49 (2020):919-924,
https://doi.org/10.1016/j.matpr.2021.05.574 . .

TY  - JOUR
AU  - Bucko, Mihael
AU  - Tomić, Milorad V.
AU  - Maksimović, Miodrag D.
AU  - Bajat, Jelena
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4098
AB  - Cyclic voltammetry was used for the characterization of zinc electro-deposition on steel from ethaline deep eutectic solution (1:2 choline chloride:ethylene glycol). The influence of 4-hydroxy-benzaldehyde (HBA) as an additive was analyzed. It was shown that hydrogen evolution is inhibited in the presence of HBA and further significantly retarded upon addition of Zn2+ to the solution containing HBA. The cathodic peak for Zn2+ reduction in this type of ionic liquid (ethaline+HBA+Zn2+) resembles the zinc reduction in aqueous solution. The corrosion resistance of Zn coatings deposited at different current densities was evaluated by electrochemical methods, i.e., polarization measurements and electrochemical impedance spectroscopy in 3 % NaCl solution. The possibility of Zn-Mn alloy deposition from ethaline deep eutectic solvent was investigated for the first time. In addition, the corrosion stability of these alloy coatings was analyzed and compared to the stability of bare Zn coatings. It was shown that the optimum deposition current density for both Zn and Zn-Mn coatings with increased corrosion stability from ethaline + HBA electrolyte is 5 mA cm(-2).
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - The importance of using hydrogen evolution inhibitor during the Zn and Zn-Mn electrodeposition from ethaline
EP  - 1234
IS  - 11
SP  - 1221
VL  - 84
DO  - 10.2298/JSC190718084B
ER  - 

@article{
author = "Bucko, Mihael and Tomić, Milorad V. and Maksimović, Miodrag D. and Bajat, Jelena",
year = "2019",
abstract = "Cyclic voltammetry was used for the characterization of zinc electro-deposition on steel from ethaline deep eutectic solution (1:2 choline chloride:ethylene glycol). The influence of 4-hydroxy-benzaldehyde (HBA) as an additive was analyzed. It was shown that hydrogen evolution is inhibited in the presence of HBA and further significantly retarded upon addition of Zn2+ to the solution containing HBA. The cathodic peak for Zn2+ reduction in this type of ionic liquid (ethaline+HBA+Zn2+) resembles the zinc reduction in aqueous solution. The corrosion resistance of Zn coatings deposited at different current densities was evaluated by electrochemical methods, i.e., polarization measurements and electrochemical impedance spectroscopy in 3 % NaCl solution. The possibility of Zn-Mn alloy deposition from ethaline deep eutectic solvent was investigated for the first time. In addition, the corrosion stability of these alloy coatings was analyzed and compared to the stability of bare Zn coatings. It was shown that the optimum deposition current density for both Zn and Zn-Mn coatings with increased corrosion stability from ethaline + HBA electrolyte is 5 mA cm(-2).",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "The importance of using hydrogen evolution inhibitor during the Zn and Zn-Mn electrodeposition from ethaline",
pages = "1234-1221",
number = "11",
volume = "84",
doi = "10.2298/JSC190718084B"
}

Bucko, M., Tomić, M. V., Maksimović, M. D.,& Bajat, J.. (2019). The importance of using hydrogen evolution inhibitor during the Zn and Zn-Mn electrodeposition from ethaline. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 84(11), 1221-1234.
https://doi.org/10.2298/JSC190718084B

Bucko M, Tomić MV, Maksimović MD, Bajat J. The importance of using hydrogen evolution inhibitor during the Zn and Zn-Mn electrodeposition from ethaline. in Journal of the Serbian Chemical Society. 2019;84(11):1221-1234.
doi:10.2298/JSC190718084B .

Bucko, Mihael, Tomić, Milorad V., Maksimović, Miodrag D., Bajat, Jelena, "The importance of using hydrogen evolution inhibitor during the Zn and Zn-Mn electrodeposition from ethaline" in Journal of the Serbian Chemical Society, 84, no. 11 (2019):1221-1234,
https://doi.org/10.2298/JSC190718084B . .

TY  - JOUR
AU  - Vuruna, Mladen
AU  - Bucko, Mihael
AU  - Radović, Ljubica
AU  - Bajat, Jelena
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3088
AB  - Pure manganese coatings were prepared on the steel (AISI 4340) electrode by a non-conventional electrodeposition method, in the presence of 8 mol dm(-3) of urea as a plating additive. The influence of urea on the electrodeposition of Mn was investigated by cyclic voltammetry. The morphology of the coatings was studied by scanning electron microscopy (SEM), and their elemental composition by energy dispersive X-ray spectrometry (EDS). The results showed that the presence of urea in the solution increased the current efficiency for metal reduction for around 20%, and depending on the applied deposition potential, urea may act either as a complexing agent or through the adsorption mechanism. Moreover, urea improves the characteristics of Mn deposits, i.e. their adhesiveness, porosity, compactness, and appearance. Except for oxygen, as part of the Mn corrosion product at the coating surface, no carbon or nitrogen incorporation was detected in the deposits by EDS.
PB  - Soc Chemists Technologists Madeconia, Skopje
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - Manganese electrodeposition from urea-rich electrolyte
EP  - 285
IS  - 2
SP  - 277
VL  - 34
DO  - 10.20450/mjcce.2015.588
ER  - 

@article{
author = "Vuruna, Mladen and Bucko, Mihael and Radović, Ljubica and Bajat, Jelena",
year = "2015",
abstract = "Pure manganese coatings were prepared on the steel (AISI 4340) electrode by a non-conventional electrodeposition method, in the presence of 8 mol dm(-3) of urea as a plating additive. The influence of urea on the electrodeposition of Mn was investigated by cyclic voltammetry. The morphology of the coatings was studied by scanning electron microscopy (SEM), and their elemental composition by energy dispersive X-ray spectrometry (EDS). The results showed that the presence of urea in the solution increased the current efficiency for metal reduction for around 20%, and depending on the applied deposition potential, urea may act either as a complexing agent or through the adsorption mechanism. Moreover, urea improves the characteristics of Mn deposits, i.e. their adhesiveness, porosity, compactness, and appearance. Except for oxygen, as part of the Mn corrosion product at the coating surface, no carbon or nitrogen incorporation was detected in the deposits by EDS.",
publisher = "Soc Chemists Technologists Madeconia, Skopje",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "Manganese electrodeposition from urea-rich electrolyte",
pages = "285-277",
number = "2",
volume = "34",
doi = "10.20450/mjcce.2015.588"
}

Vuruna, M., Bucko, M., Radović, L.,& Bajat, J.. (2015). Manganese electrodeposition from urea-rich electrolyte. in Macedonian Journal of Chemistry and Chemical Engineering
Soc Chemists Technologists Madeconia, Skopje., 34(2), 277-285.
https://doi.org/10.20450/mjcce.2015.588

Vuruna M, Bucko M, Radović L, Bajat J. Manganese electrodeposition from urea-rich electrolyte. in Macedonian Journal of Chemistry and Chemical Engineering. 2015;34(2):277-285.
doi:10.20450/mjcce.2015.588 .

Vuruna, Mladen, Bucko, Mihael, Radović, Ljubica, Bajat, Jelena, "Manganese electrodeposition from urea-rich electrolyte" in Macedonian Journal of Chemistry and Chemical Engineering, 34, no. 2 (2015):277-285,
https://doi.org/10.20450/mjcce.2015.588 . .