Mišković-Stanković, Vesna

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orcid::0000-0001-6525-9820
  • Mišković-Stanković, Vesna (41)
Projects

Author's Bibliography

The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy

Živković, Ljiljana S.; Jegdić, Bore; Andrić, Velibor; Rhee, Kyong-Yop; Bajat, Jelena; Mišković-Stanković, Vesna

(Elsevier, 2019)

TY  - JOUR
AU  - Živković, Ljiljana S.
AU  - Jegdić, Bore
AU  - Andrić, Velibor
AU  - Rhee, Kyong-Yop
AU  - Bajat, Jelena
AU  - Mišković-Stanković, Vesna
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3060
AB  - In this work an attempt was made to produce epoxy coating doped with ceria (CeO2) and/or zirconia (ZrO2) nanoparticles, in single step electrophoretric deposition process. Deposition was carried out on AA6060 cataforetically from epoxy resin suspension containing synthesized stable aqueous colloidal dispersions (sols) of CeO2 and ZrO2. The influence of ceria and zirconia nanoparticles on the physicochemical characteristics of epoxy coatings was evaluated by energy dispersive X-ray fluorescence spectroscopy, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, Fourier-transform infrared spectroscopy, thermogravimetric analysis and adhesion measurements, while their corrosion stability during immersion in 0.5 M NaCl solution was monitored by electrochemical impedance spectroscopy. All ceria and/or zirconia containing coatings showed better corrosion stability and adhesion than pure epoxy coating, while between doped epoxy coatings one with CeO2/ZrO2 exhhibited the greatest values of charge-transfer resistance due to synergetic effect of both types of added nanoparticles.
PB  - Elsevier
T2  - Progress in Organic Coatings
T1  - The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy
SP  - 105219
DO  - 10.1016/j.porgcoat.2019.105219
ER  - 
@article{
author = "Živković, Ljiljana S. and Jegdić, Bore and Andrić, Velibor and Rhee, Kyong-Yop and Bajat, Jelena and Mišković-Stanković, Vesna",
year = "2019",
abstract = "In this work an attempt was made to produce epoxy coating doped with ceria (CeO2) and/or zirconia (ZrO2) nanoparticles, in single step electrophoretric deposition process. Deposition was carried out on AA6060 cataforetically from epoxy resin suspension containing synthesized stable aqueous colloidal dispersions (sols) of CeO2 and ZrO2. The influence of ceria and zirconia nanoparticles on the physicochemical characteristics of epoxy coatings was evaluated by energy dispersive X-ray fluorescence spectroscopy, X-ray photoelectron spectroscopy, field-emission scanning electron microscopy, Fourier-transform infrared spectroscopy, thermogravimetric analysis and adhesion measurements, while their corrosion stability during immersion in 0.5 M NaCl solution was monitored by electrochemical impedance spectroscopy. All ceria and/or zirconia containing coatings showed better corrosion stability and adhesion than pure epoxy coating, while between doped epoxy coatings one with CeO2/ZrO2 exhhibited the greatest values of charge-transfer resistance due to synergetic effect of both types of added nanoparticles.",
publisher = "Elsevier",
journal = "Progress in Organic Coatings",
title = "The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy",
pages = "105219",
doi = "10.1016/j.porgcoat.2019.105219"
}
Živković, L. S., Jegdić, B., Andrić, V., Rhee, K., Bajat, J.,& Mišković-Stanković, V.. (2019). The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy. in Progress in Organic Coatings
Elsevier., 105219.
https://doi.org/10.1016/j.porgcoat.2019.105219
Živković LS, Jegdić B, Andrić V, Rhee K, Bajat J, Mišković-Stanković V. The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy. in Progress in Organic Coatings. 2019;:105219.
doi:10.1016/j.porgcoat.2019.105219 .
Živković, Ljiljana S., Jegdić, Bore, Andrić, Velibor, Rhee, Kyong-Yop, Bajat, Jelena, Mišković-Stanković, Vesna, "The effect of ceria and zirconia nanoparticles on the corrosion behaviour of cataphoretic epoxy coatings on AA6060 alloy" in Progress in Organic Coatings (2019):105219,
https://doi.org/10.1016/j.porgcoat.2019.105219 . .
20
10
20

In vitro investigation of electrophoretically deposited bioactive hydroxyapatite/chitosan coatings reinforced by graphene

Đošić, Marija; Eraković, Sanja; Janković, Ana; Vukašinović-Sekulić, Maja; Matić, Ivana Z.; Stojanović, Jovica; Rhee, Kyong Yop; Mišković-Stanković, Vesna; Park, Soo-Jin

(Elsevier, 2017)

TY  - JOUR
AU  - Đošić, Marija
AU  - Eraković, Sanja
AU  - Janković, Ana
AU  - Vukašinović-Sekulić, Maja
AU  - Matić, Ivana Z.
AU  - Stojanović, Jovica
AU  - Rhee, Kyong Yop
AU  - Mišković-Stanković, Vesna
AU  - Park, Soo-Jin
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3703
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6743
AB  - Graphene (Gr) and natural polymer chitosan (CS) were introduced to hydroxyapatite (HAP) to produce a three-component composite coating, which was fabricated by cathodic electrophoretic deposition on Ti substrates in an ethanol suspension. These HAP/CS/Gr coatings were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and electrochemical measurements and found that the graphene into HAP/CS composites significantly improves their morphology, thermal stability, and bioactivity. Both HAP/CS and HAP/CS/Gr composite coatings are classified as non-cytotoxic when tested against healthy peripheral blood mononuclear cells (PBMC), while antibacterial activity against Staphylococcus aureus and Escherichia coil could not be verified.
PB  - Elsevier
T2  - Journal of Industrial and Engineering Chemistry
T1  - In vitro investigation of electrophoretically deposited bioactive hydroxyapatite/chitosan coatings reinforced by graphene
VL  - 47
SP  - 336
EP  - 347
DO  - 10.1016/j.jiec.2016.12.004
ER  - 
@article{
author = "Đošić, Marija and Eraković, Sanja and Janković, Ana and Vukašinović-Sekulić, Maja and Matić, Ivana Z. and Stojanović, Jovica and Rhee, Kyong Yop and Mišković-Stanković, Vesna and Park, Soo-Jin",
year = "2017",
abstract = "Graphene (Gr) and natural polymer chitosan (CS) were introduced to hydroxyapatite (HAP) to produce a three-component composite coating, which was fabricated by cathodic electrophoretic deposition on Ti substrates in an ethanol suspension. These HAP/CS/Gr coatings were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and electrochemical measurements and found that the graphene into HAP/CS composites significantly improves their morphology, thermal stability, and bioactivity. Both HAP/CS and HAP/CS/Gr composite coatings are classified as non-cytotoxic when tested against healthy peripheral blood mononuclear cells (PBMC), while antibacterial activity against Staphylococcus aureus and Escherichia coil could not be verified.",
publisher = "Elsevier",
journal = "Journal of Industrial and Engineering Chemistry",
title = "In vitro investigation of electrophoretically deposited bioactive hydroxyapatite/chitosan coatings reinforced by graphene",
volume = "47",
pages = "336-347",
doi = "10.1016/j.jiec.2016.12.004"
}
Đošić, M., Eraković, S., Janković, A., Vukašinović-Sekulić, M., Matić, I. Z., Stojanović, J., Rhee, K. Y., Mišković-Stanković, V.,& Park, S.. (2017). In vitro investigation of electrophoretically deposited bioactive hydroxyapatite/chitosan coatings reinforced by graphene. in Journal of Industrial and Engineering Chemistry
Elsevier., 47, 336-347.
https://doi.org/10.1016/j.jiec.2016.12.004
Đošić M, Eraković S, Janković A, Vukašinović-Sekulić M, Matić IZ, Stojanović J, Rhee KY, Mišković-Stanković V, Park S. In vitro investigation of electrophoretically deposited bioactive hydroxyapatite/chitosan coatings reinforced by graphene. in Journal of Industrial and Engineering Chemistry. 2017;47:336-347.
doi:10.1016/j.jiec.2016.12.004 .
Đošić, Marija, Eraković, Sanja, Janković, Ana, Vukašinović-Sekulić, Maja, Matić, Ivana Z., Stojanović, Jovica, Rhee, Kyong Yop, Mišković-Stanković, Vesna, Park, Soo-Jin, "In vitro investigation of electrophoretically deposited bioactive hydroxyapatite/chitosan coatings reinforced by graphene" in Journal of Industrial and Engineering Chemistry, 47 (2017):336-347,
https://doi.org/10.1016/j.jiec.2016.12.004 . .
47
35
45

Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent

Košević, Milica; Panić, Vladimir; Bajat, Jelena; Mišković-Stanković, Vesna

(Belgrade, Serbia : Engineering Society for Corrosion, 2016)

TY  - JOUR
AU  - Košević, Milica
AU  - Panić, Vladimir
AU  - Bajat, Jelena
AU  - Mišković-Stanković, Vesna
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1871
AB  - Electrochemical impedance characteristics of bare Al and Al with CeO2 coating prepared sol-gel procedure from the ceria sol are investigated. The corrosion behavior is monitored during the exposure to 3 wt. % NaCl aqueous solution. Experimental data are fitted to various equivalent electrical circuits with special attention to inductive features. Equivalent electrical circuits involving inductivity represent impedance response equally well as the ones without inductivity, although the parameter values gained from the former correspond better to the proposed model of physicochemical changes during corrosion of investigated samples.
AB  - Korozione karakteristike aluminijuma i aluminijuma na koji je naneta prevlaka oksida cerijuma sol-gel postupkom ispitivane su primenom spektroskopije elektrohemijske impedancije tokom izlaganja u vodenom rastvoru 3 mas. % NaCl. Dobijeni podaci analizirani su ekvivalentnim električnim kolima različite konfiguracije uz posebnu diskusiju koja se odnosi na pojavu induktivnog ponašanja. Ekvivalentna kola sa induktivnim elementom i bez njega podjednako dobro opisuju impedansne odgovore, mada vrednosti parametara kola u kojima je uključena induktivnost više odgovaraju predloženom modelu fizičko-hemijskih promena tokom procesa korozije ispitivanih sistema.
PB  - Belgrade, Serbia : Engineering Society for Corrosion
T2  - Zaštita materijala
T1  - Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent
T1  - Impedansni odgovor aluminijuma sa zaštitnom prevlakom oksida cerijuma tokom izlaganja hloridnoj korozionoj sredini
VL  - 57
IS  - 2
SP  - 305
EP  - 313
DO  - 10.5937/ZasMat1602305k
ER  - 
@article{
author = "Košević, Milica and Panić, Vladimir and Bajat, Jelena and Mišković-Stanković, Vesna",
year = "2016",
abstract = "Electrochemical impedance characteristics of bare Al and Al with CeO2 coating prepared sol-gel procedure from the ceria sol are investigated. The corrosion behavior is monitored during the exposure to 3 wt. % NaCl aqueous solution. Experimental data are fitted to various equivalent electrical circuits with special attention to inductive features. Equivalent electrical circuits involving inductivity represent impedance response equally well as the ones without inductivity, although the parameter values gained from the former correspond better to the proposed model of physicochemical changes during corrosion of investigated samples., Korozione karakteristike aluminijuma i aluminijuma na koji je naneta prevlaka oksida cerijuma sol-gel postupkom ispitivane su primenom spektroskopije elektrohemijske impedancije tokom izlaganja u vodenom rastvoru 3 mas. % NaCl. Dobijeni podaci analizirani su ekvivalentnim električnim kolima različite konfiguracije uz posebnu diskusiju koja se odnosi na pojavu induktivnog ponašanja. Ekvivalentna kola sa induktivnim elementom i bez njega podjednako dobro opisuju impedansne odgovore, mada vrednosti parametara kola u kojima je uključena induktivnost više odgovaraju predloženom modelu fizičko-hemijskih promena tokom procesa korozije ispitivanih sistema.",
publisher = "Belgrade, Serbia : Engineering Society for Corrosion",
journal = "Zaštita materijala",
title = "Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent, Impedansni odgovor aluminijuma sa zaštitnom prevlakom oksida cerijuma tokom izlaganja hloridnoj korozionoj sredini",
volume = "57",
number = "2",
pages = "305-313",
doi = "10.5937/ZasMat1602305k"
}
Košević, M., Panić, V., Bajat, J.,& Mišković-Stanković, V.. (2016). Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent. in Zaštita materijala
Belgrade, Serbia : Engineering Society for Corrosion., 57(2), 305-313.
https://doi.org/10.5937/ZasMat1602305k
Košević M, Panić V, Bajat J, Mišković-Stanković V. Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent. in Zaštita materijala. 2016;57(2):305-313.
doi:10.5937/ZasMat1602305k .
Košević, Milica, Panić, Vladimir, Bajat, Jelena, Mišković-Stanković, Vesna, "Impedance characteristics of aluminum with sol-gel ceria protective coating during the exposure to chloride corrosion agent" in Zaštita materijala, 57, no. 2 (2016):305-313,
https://doi.org/10.5937/ZasMat1602305k . .

Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy

Jegdić, Bore; Živković, Ljiljana S.; Popić, Jovan P.; Rogan, Jelena R.; Bajat, Jelena; Mišković-Stanković, Vesna

(Wiley-V C H Verlag Gmbh, Weinheim, 2016)

TY  - JOUR
AU  - Jegdić, Bore
AU  - Živković, Ljiljana S.
AU  - Popić, Jovan P.
AU  - Rogan, Jelena R.
AU  - Bajat, Jelena
AU  - Mišković-Stanković, Vesna
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1886
AB  - In this study, corrosion protection efficiency of undoped epoxy and epoxy coating doped with cerium on aluminum alloy AA6060 is evaluated over prolonged exposure to 3wt% NaCl solution by electrochemical impedance spectroscopy (EIS). Different amounts of Ce(NO3)(3) are added into the epoxy suspension used for the cataphoretic deposition. Suspension stability is characterized by zeta potential and particle size values. Water content and thermal stability of the coatings were determined by thermogravimetric analysis. Insufficient corrosion stability, very close to that of undoped epoxy, is revealed for the coating with 1mM Ce. Higher cerium doping contributes to a significant increase in corrosion stability (2-3 orders of magnitude greater charge-transfer resistance). Epoxy coating doped with 5mM Ce displays a pronounced self-healing ability and the best corrosion protection and adhesion, owing to evenly distributed cerium precipitates on the aluminum surface. In the case of 10mM Ce-doped coating, the formation of Ce clusters and higher porosity causes a certain lowering of the protective ability. EIS measurements on epoxy coating with artificial defect confirm these findings.
PB  - Wiley-V C H Verlag Gmbh, Weinheim
T2  - Materials and Corrosion-Werkstoffe und Korrosion
T1  - Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy
VL  - 67
IS  - 11
SP  - 1173
EP  - 1184
DO  - 10.1002/maco.201608827
ER  - 
@article{
author = "Jegdić, Bore and Živković, Ljiljana S. and Popić, Jovan P. and Rogan, Jelena R. and Bajat, Jelena and Mišković-Stanković, Vesna",
year = "2016",
abstract = "In this study, corrosion protection efficiency of undoped epoxy and epoxy coating doped with cerium on aluminum alloy AA6060 is evaluated over prolonged exposure to 3wt% NaCl solution by electrochemical impedance spectroscopy (EIS). Different amounts of Ce(NO3)(3) are added into the epoxy suspension used for the cataphoretic deposition. Suspension stability is characterized by zeta potential and particle size values. Water content and thermal stability of the coatings were determined by thermogravimetric analysis. Insufficient corrosion stability, very close to that of undoped epoxy, is revealed for the coating with 1mM Ce. Higher cerium doping contributes to a significant increase in corrosion stability (2-3 orders of magnitude greater charge-transfer resistance). Epoxy coating doped with 5mM Ce displays a pronounced self-healing ability and the best corrosion protection and adhesion, owing to evenly distributed cerium precipitates on the aluminum surface. In the case of 10mM Ce-doped coating, the formation of Ce clusters and higher porosity causes a certain lowering of the protective ability. EIS measurements on epoxy coating with artificial defect confirm these findings.",
publisher = "Wiley-V C H Verlag Gmbh, Weinheim",
journal = "Materials and Corrosion-Werkstoffe und Korrosion",
title = "Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy",
volume = "67",
number = "11",
pages = "1173-1184",
doi = "10.1002/maco.201608827"
}
Jegdić, B., Živković, L. S., Popić, J. P., Rogan, J. R., Bajat, J.,& Mišković-Stanković, V.. (2016). Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy. in Materials and Corrosion-Werkstoffe und Korrosion
Wiley-V C H Verlag Gmbh, Weinheim., 67(11), 1173-1184.
https://doi.org/10.1002/maco.201608827
Jegdić B, Živković LS, Popić JP, Rogan JR, Bajat J, Mišković-Stanković V. Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy. in Materials and Corrosion-Werkstoffe und Korrosion. 2016;67(11):1173-1184.
doi:10.1002/maco.201608827 .
Jegdić, Bore, Živković, Ljiljana S., Popić, Jovan P., Rogan, Jelena R., Bajat, Jelena, Mišković-Stanković, Vesna, "Corrosion stability of cerium-doped cataphoretic epoxy coatings on AA6060 alloy" in Materials and Corrosion-Werkstoffe und Korrosion, 67, no. 11 (2016):1173-1184,
https://doi.org/10.1002/maco.201608827 . .
11
8
11

Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium

Gulicovski, Jelena; Bajat, Jelena; Jokić, Bojan; Panić, Vladimir; Mišković-Stanković, Vesna; Milonjić, Slobodan K.

(Springer, New York, 2016)

TY  - JOUR
AU  - Gulicovski, Jelena
AU  - Bajat, Jelena
AU  - Jokić, Bojan
AU  - Panić, Vladimir
AU  - Mišković-Stanković, Vesna
AU  - Milonjić, Slobodan K.
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1975
AB  - Ceria coating is formed on Al from the ceria sol prepared exclusively by forced hydrolysis of Ce(NO3)(4), in order to test their ability to protect Al from corrosion. The characterization of sol-gel-processed ceria coating and coating/Al assembly brings new issues on Al corrosion and protection caused by unique properties of the sol-gel coating. The corrosion behaviour of bare Al and Al/CeO2 is investigated by the electrochemical impedance spectroscopy (EIS) during the exposure to NaCl aqueous solution. The morphology and composition of the samples are examined by scanning electron microscopy and energy dispersive spectroscopy. EIS data showed greater corrosion resistance of CeO2-coated aluminium in comparison to bare Al at long exposure times. CeO2 coating does not hinder completely the corrosion processes on Al. The Al beneath CeO2 coating is subjected to intrinsic formation of a uniform protective coating/Al interphase, cross-linked by AlO(OH) fibre-like structures. They appear created by corrosive medium from the coating reversely gelled by NaCl solution. As the fibre network is created during exposure, Al becomes better protected than by spontaneous formation of porous passive layer of Al(OH)(3) on bare aluminium. Sol-gel ceria coatings thus improve corrosion resistance of aluminium during prolonged exposure to corrosive medium.
PB  - Springer, New York
T2  - Journal of Solid State Electrochemistry
T1  - Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium
VL  - 20
IS  - 1
SP  - 293
EP  - 303
DO  - 10.1007/s10008-015-3040-3
ER  - 
@article{
author = "Gulicovski, Jelena and Bajat, Jelena and Jokić, Bojan and Panić, Vladimir and Mišković-Stanković, Vesna and Milonjić, Slobodan K.",
year = "2016",
abstract = "Ceria coating is formed on Al from the ceria sol prepared exclusively by forced hydrolysis of Ce(NO3)(4), in order to test their ability to protect Al from corrosion. The characterization of sol-gel-processed ceria coating and coating/Al assembly brings new issues on Al corrosion and protection caused by unique properties of the sol-gel coating. The corrosion behaviour of bare Al and Al/CeO2 is investigated by the electrochemical impedance spectroscopy (EIS) during the exposure to NaCl aqueous solution. The morphology and composition of the samples are examined by scanning electron microscopy and energy dispersive spectroscopy. EIS data showed greater corrosion resistance of CeO2-coated aluminium in comparison to bare Al at long exposure times. CeO2 coating does not hinder completely the corrosion processes on Al. The Al beneath CeO2 coating is subjected to intrinsic formation of a uniform protective coating/Al interphase, cross-linked by AlO(OH) fibre-like structures. They appear created by corrosive medium from the coating reversely gelled by NaCl solution. As the fibre network is created during exposure, Al becomes better protected than by spontaneous formation of porous passive layer of Al(OH)(3) on bare aluminium. Sol-gel ceria coatings thus improve corrosion resistance of aluminium during prolonged exposure to corrosive medium.",
publisher = "Springer, New York",
journal = "Journal of Solid State Electrochemistry",
title = "Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium",
volume = "20",
number = "1",
pages = "293-303",
doi = "10.1007/s10008-015-3040-3"
}
Gulicovski, J., Bajat, J., Jokić, B., Panić, V., Mišković-Stanković, V.,& Milonjić, S. K.. (2016). Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium. in Journal of Solid State Electrochemistry
Springer, New York., 20(1), 293-303.
https://doi.org/10.1007/s10008-015-3040-3
Gulicovski J, Bajat J, Jokić B, Panić V, Mišković-Stanković V, Milonjić SK. Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium. in Journal of Solid State Electrochemistry. 2016;20(1):293-303.
doi:10.1007/s10008-015-3040-3 .
Gulicovski, Jelena, Bajat, Jelena, Jokić, Bojan, Panić, Vladimir, Mišković-Stanković, Vesna, Milonjić, Slobodan K., "Protective ability and impedance response of sol-gel reversely transformed ceria conversion coating on aluminium" in Journal of Solid State Electrochemistry, 20, no. 1 (2016):293-303,
https://doi.org/10.1007/s10008-015-3040-3 . .
7
6
6

Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment

Živković, Ljiljana S.; Bajat, Jelena; Popić, Jovan P.; Jegdić, Bore; Stevanović, Sanja; Mišković-Stanković, Vesna

(Elsevier Science Sa, Lausanne, 2015)

TY  - JOUR
AU  - Živković, Ljiljana S.
AU  - Bajat, Jelena
AU  - Popić, Jovan P.
AU  - Jegdić, Bore
AU  - Stevanović, Sanja
AU  - Mišković-Stanković, Vesna
PY  - 2015
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1739
AB  - Ce-based conversion coatings (CeCCs) are a promising alternative to toxic chromate coatings on the metal substrates. In this work the CeCCs were electrodeposited on aluminium alloy AA6060 from aqueous solution of Ce(NO3)(3) at different potentials (-0.95 V, -1.2 V and -1.4V). Effect of deposition potential and post-treatment in the phosphate solution on morphology and protective properties of CeCCs with top cataphoretic epoxy coating was studied. To assess the differences between the protective systems, originating from the different CeCCs pre-treatments, electrochemical impedance spectroscopy (EIS), polarization measurements, AFM and SEM/EDS analysis were used. The EIS study was undertaken to follow the evolution of corrosion behaviour of epoxy coating/CeCCs protective systems over prolonged time of exposure to the chloride environment (3 wt.% NaCl). Results suggest significantly improved corrosion stability of epoxy coating on AA6060 with as-deposited CeCCs sub-layers with respect to the same epoxy coatings with phosphate post-treated CeCCs. The far best protective properties, i.e., the greatest value of pore resistance and the lowest value of corrosion current density were provided by the epoxy coating/CeCC protective system with CeCC deposited at -1.2V and without post-treatment.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment
VL  - 79
SP  - 43
EP  - 52
DO  - 10.1016/j.porgcoat.2014.10.014
ER  - 
@article{
author = "Živković, Ljiljana S. and Bajat, Jelena and Popić, Jovan P. and Jegdić, Bore and Stevanović, Sanja and Mišković-Stanković, Vesna",
year = "2015",
abstract = "Ce-based conversion coatings (CeCCs) are a promising alternative to toxic chromate coatings on the metal substrates. In this work the CeCCs were electrodeposited on aluminium alloy AA6060 from aqueous solution of Ce(NO3)(3) at different potentials (-0.95 V, -1.2 V and -1.4V). Effect of deposition potential and post-treatment in the phosphate solution on morphology and protective properties of CeCCs with top cataphoretic epoxy coating was studied. To assess the differences between the protective systems, originating from the different CeCCs pre-treatments, electrochemical impedance spectroscopy (EIS), polarization measurements, AFM and SEM/EDS analysis were used. The EIS study was undertaken to follow the evolution of corrosion behaviour of epoxy coating/CeCCs protective systems over prolonged time of exposure to the chloride environment (3 wt.% NaCl). Results suggest significantly improved corrosion stability of epoxy coating on AA6060 with as-deposited CeCCs sub-layers with respect to the same epoxy coatings with phosphate post-treated CeCCs. The far best protective properties, i.e., the greatest value of pore resistance and the lowest value of corrosion current density were provided by the epoxy coating/CeCC protective system with CeCC deposited at -1.2V and without post-treatment.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment",
volume = "79",
pages = "43-52",
doi = "10.1016/j.porgcoat.2014.10.014"
}
Živković, L. S., Bajat, J., Popić, J. P., Jegdić, B., Stevanović, S.,& Mišković-Stanković, V.. (2015). Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 79, 43-52.
https://doi.org/10.1016/j.porgcoat.2014.10.014
Živković LS, Bajat J, Popić JP, Jegdić B, Stevanović S, Mišković-Stanković V. Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment. in Progress in Organic Coatings. 2015;79:43-52.
doi:10.1016/j.porgcoat.2014.10.014 .
Živković, Ljiljana S., Bajat, Jelena, Popić, Jovan P., Jegdić, Bore, Stevanović, Sanja, Mišković-Stanković, Vesna, "Protective properties of cataphoretic epoxy coating on aluminium alloy AA6060 modified with electrodeposited Ce-based coatings: Effect of post-treatment" in Progress in Organic Coatings, 79 (2015):43-52,
https://doi.org/10.1016/j.porgcoat.2014.10.014 . .
18
13
16

Corrosion Stability of Cerium Modified Cataphoretic Epoxy Coatings on Al6060 Alloy

Bajat, Jelena; Živković, Ljiljana S.; Jegdić, Bore; Popić, Jovan P.; Mišković-Stanković, Vesna

(Academician Evgeni Budevski Institute of Electrochemistry and Energy Systems Bulgarian Academy of Sciences, Sofia, Bulgaria, 2015)

TY  - CONF
AU  - Bajat, Jelena
AU  - Živković, Ljiljana S.
AU  - Jegdić, Bore
AU  - Popić, Jovan P.
AU  - Mišković-Stanković, Vesna
PY  - 2015
UR  - http://www.aseee.eu/index.php/rse-see5-home
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3555
AB  - Protective coatings should provide good barrier to ingress of corrosive species, sufficient adhesion to the substrate as well as good compatibility with additional top coats. The presence of pigments and/or functional agents in the coating composition could be beneficial in the corrosion protection. The doping with rare earth elements, like cerium, has shown to enhance the corrosion stability of organic coatings due to their self-healing properties. In this work cerium doped nanometric epoxy primers were deposited cataphoretically with different amounts of cerium nitrate (1, 5 and 10 mM) with the aim of optimizing the cerium content in the epoxy emulsion with respect to adhesion and corrosion stability of deposited primer coating. Cerium-free epoxy coating was also analyzed as a reference. The long term protection was evaluated in the chloride environment (3 wt.%NaCl) using electrochemical impedance spectroscopy (EIS) and polarization measurements. Coatings were also analyzed by scanning electron microscopy (SEM) coupled with EDX, Fourier transform infrared spectroscopy and thermogravimetric measurements. Size and zeta potential of epoxy emulsion were measured by dynamic light scattering and Laser Doppler velocimetry. Adhesion was determined both by a standardized pull-off method and by swelling in N-methyl pyrrolidone. The ceria content, as well as its distribution in the epoxy coating, was determined by SEM cross-sectional analysis. The homogeneity of epoxy coatings was evaluated and related to corrosion stability. The results showed that cerium-doping can promote the formation of compact epoxy coatings with enhanced protectiveness in the early stage of immersion in the corrosive media. Increased barrier properties of epoxy primers suggest good compatibility of ceria particles with polymeric epoxy layer. However, zeta potential measurements indicated that higher amounts than 10 mM Ce(NO3)3 added into the epoxy emulsion resulted in unstable emulsion. The water content in the epoxy coatings and their thermal stability were also determined. In addition, a detailed EIS study was undertaken to follow the evolution of corrosion stability of all samples with time of exposure to corrosive media. It was shown that all examined ceria containing epoxy emulsions resulted with the enhanced adhesion and corrosion stability of epoxy primers. However, the smallest loading of 1 mM showed only improvement during the initial exposure to NaCl solution. EIS and polarization measurements confirmed that higher ceria loadings also provide long term protection in chloride solution.The optimal ceria content in the epoxy emulsion, with respect to adhesion strength, thermal stability and long-term corrosion stability of protective systems was 10 mM.
PB  - Academician Evgeni Budevski Institute of Electrochemistry and Energy Systems Bulgarian Academy of Sciences, Sofia, Bulgaria
C3  - 5th Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
T1  - Corrosion Stability of Cerium Modified Cataphoretic Epoxy Coatings on Al6060 Alloy
SP  - 44
EP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_cer_3555
ER  - 
@conference{
author = "Bajat, Jelena and Živković, Ljiljana S. and Jegdić, Bore and Popić, Jovan P. and Mišković-Stanković, Vesna",
year = "2015",
abstract = "Protective coatings should provide good barrier to ingress of corrosive species, sufficient adhesion to the substrate as well as good compatibility with additional top coats. The presence of pigments and/or functional agents in the coating composition could be beneficial in the corrosion protection. The doping with rare earth elements, like cerium, has shown to enhance the corrosion stability of organic coatings due to their self-healing properties. In this work cerium doped nanometric epoxy primers were deposited cataphoretically with different amounts of cerium nitrate (1, 5 and 10 mM) with the aim of optimizing the cerium content in the epoxy emulsion with respect to adhesion and corrosion stability of deposited primer coating. Cerium-free epoxy coating was also analyzed as a reference. The long term protection was evaluated in the chloride environment (3 wt.%NaCl) using electrochemical impedance spectroscopy (EIS) and polarization measurements. Coatings were also analyzed by scanning electron microscopy (SEM) coupled with EDX, Fourier transform infrared spectroscopy and thermogravimetric measurements. Size and zeta potential of epoxy emulsion were measured by dynamic light scattering and Laser Doppler velocimetry. Adhesion was determined both by a standardized pull-off method and by swelling in N-methyl pyrrolidone. The ceria content, as well as its distribution in the epoxy coating, was determined by SEM cross-sectional analysis. The homogeneity of epoxy coatings was evaluated and related to corrosion stability. The results showed that cerium-doping can promote the formation of compact epoxy coatings with enhanced protectiveness in the early stage of immersion in the corrosive media. Increased barrier properties of epoxy primers suggest good compatibility of ceria particles with polymeric epoxy layer. However, zeta potential measurements indicated that higher amounts than 10 mM Ce(NO3)3 added into the epoxy emulsion resulted in unstable emulsion. The water content in the epoxy coatings and their thermal stability were also determined. In addition, a detailed EIS study was undertaken to follow the evolution of corrosion stability of all samples with time of exposure to corrosive media. It was shown that all examined ceria containing epoxy emulsions resulted with the enhanced adhesion and corrosion stability of epoxy primers. However, the smallest loading of 1 mM showed only improvement during the initial exposure to NaCl solution. EIS and polarization measurements confirmed that higher ceria loadings also provide long term protection in chloride solution.The optimal ceria content in the epoxy emulsion, with respect to adhesion strength, thermal stability and long-term corrosion stability of protective systems was 10 mM.",
publisher = "Academician Evgeni Budevski Institute of Electrochemistry and Energy Systems Bulgarian Academy of Sciences, Sofia, Bulgaria",
journal = "5th Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts",
title = "Corrosion Stability of Cerium Modified Cataphoretic Epoxy Coatings on Al6060 Alloy",
pages = "44-44",
url = "https://hdl.handle.net/21.15107/rcub_cer_3555"
}
Bajat, J., Živković, L. S., Jegdić, B., Popić, J. P.,& Mišković-Stanković, V.. (2015). Corrosion Stability of Cerium Modified Cataphoretic Epoxy Coatings on Al6060 Alloy. in 5th Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
Academician Evgeni Budevski Institute of Electrochemistry and Energy Systems Bulgarian Academy of Sciences, Sofia, Bulgaria., 44-44.
https://hdl.handle.net/21.15107/rcub_cer_3555
Bajat J, Živković LS, Jegdić B, Popić JP, Mišković-Stanković V. Corrosion Stability of Cerium Modified Cataphoretic Epoxy Coatings on Al6060 Alloy. in 5th Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts. 2015;:44-44.
https://hdl.handle.net/21.15107/rcub_cer_3555 .
Bajat, Jelena, Živković, Ljiljana S., Jegdić, Bore, Popić, Jovan P., Mišković-Stanković, Vesna, "Corrosion Stability of Cerium Modified Cataphoretic Epoxy Coatings on Al6060 Alloy" in 5th Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts (2015):44-44,
https://hdl.handle.net/21.15107/rcub_cer_3555 .

Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential

Živković, Ljiljana S.; Popić, Jovan P.; Jegdić, Bore; Dohcevic-Mitrovic, Z.; Bajat, Jelena; Mišković-Stanković, Vesna

(Elsevier, 2014)

TY  - JOUR
AU  - Živković, Ljiljana S.
AU  - Popić, Jovan P.
AU  - Jegdić, Bore
AU  - Dohcevic-Mitrovic, Z.
AU  - Bajat, Jelena
AU  - Mišković-Stanković, Vesna
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1547
AB  - Among potential replacements for chromates, cerium-based conversion coatings (CeCCs) have been identified as leading candidates, showing a good promise as environmentally compliant corrosion inhibitors on Al alloys. In this work, CeCCs were synthesized on M6060 by electrolytic deposition (ELD), a well-suited method for the fabrication of films with controllable properties, at low processing temperature and cost. The CeCCs were deposited at room temperature from Ce(NO3)(3) solution, applying different cathodic potentials (-1.1, -1.4 and -1.6 V vs. SCE) for different deposition times between 5 and 20 min. Structural, morphological and compositional properties of the films were characterized by X-ray diffraction, Raman spectroscopy and scanning electron microscopy coupled with energy dispersive spectroscopy. Ceria films were nanostructured, exhibiting a cubic fluorite structure. From corrosion perspective, the quality of CeCCs was evaluated in 0.5 M NaCI solution via electrochemical impedance spectroscopy and linear sweep voltammetry. As shown, the coating corrosion quality is the interplay between deposition potential and deposition time. The highest potential led to highly cracked films of poor adherence, even at the shortest deposition time, which disqualified them from any corrosion protection application. The lowest potential (-1.1 V) produced crack-free coatings, but longer times (>= 10 min) were needed to provide the protective layer formation. The best corrosion protection offered CeCCs prepared at -1.4 V. The highest R-p (582 k Omega cm(2)) and the smallest CPE (12.6 . 10(-6) s(n) Omega(-1) cm) were obtained at 20 min deposition time. However, from economical point of view, 10 min deposition is a promising choice. These CeCCs also improved pitting corrosion resistance owing to homogeneous microstructure and sufficient thickness.
PB  - Elsevier
T2  - Surface and Coatings Technology
T1  - Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential
VL  - 240
SP  - 327
EP  - 335
DO  - 10.1016/j.surfcoat.2013.12.048
ER  - 
@article{
author = "Živković, Ljiljana S. and Popić, Jovan P. and Jegdić, Bore and Dohcevic-Mitrovic, Z. and Bajat, Jelena and Mišković-Stanković, Vesna",
year = "2014",
abstract = "Among potential replacements for chromates, cerium-based conversion coatings (CeCCs) have been identified as leading candidates, showing a good promise as environmentally compliant corrosion inhibitors on Al alloys. In this work, CeCCs were synthesized on M6060 by electrolytic deposition (ELD), a well-suited method for the fabrication of films with controllable properties, at low processing temperature and cost. The CeCCs were deposited at room temperature from Ce(NO3)(3) solution, applying different cathodic potentials (-1.1, -1.4 and -1.6 V vs. SCE) for different deposition times between 5 and 20 min. Structural, morphological and compositional properties of the films were characterized by X-ray diffraction, Raman spectroscopy and scanning electron microscopy coupled with energy dispersive spectroscopy. Ceria films were nanostructured, exhibiting a cubic fluorite structure. From corrosion perspective, the quality of CeCCs was evaluated in 0.5 M NaCI solution via electrochemical impedance spectroscopy and linear sweep voltammetry. As shown, the coating corrosion quality is the interplay between deposition potential and deposition time. The highest potential led to highly cracked films of poor adherence, even at the shortest deposition time, which disqualified them from any corrosion protection application. The lowest potential (-1.1 V) produced crack-free coatings, but longer times (>= 10 min) were needed to provide the protective layer formation. The best corrosion protection offered CeCCs prepared at -1.4 V. The highest R-p (582 k Omega cm(2)) and the smallest CPE (12.6 . 10(-6) s(n) Omega(-1) cm) were obtained at 20 min deposition time. However, from economical point of view, 10 min deposition is a promising choice. These CeCCs also improved pitting corrosion resistance owing to homogeneous microstructure and sufficient thickness.",
publisher = "Elsevier",
journal = "Surface and Coatings Technology",
title = "Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential",
volume = "240",
pages = "327-335",
doi = "10.1016/j.surfcoat.2013.12.048"
}
Živković, L. S., Popić, J. P., Jegdić, B., Dohcevic-Mitrovic, Z., Bajat, J.,& Mišković-Stanković, V.. (2014). Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential. in Surface and Coatings Technology
Elsevier., 240, 327-335.
https://doi.org/10.1016/j.surfcoat.2013.12.048
Živković LS, Popić JP, Jegdić B, Dohcevic-Mitrovic Z, Bajat J, Mišković-Stanković V. Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential. in Surface and Coatings Technology. 2014;240:327-335.
doi:10.1016/j.surfcoat.2013.12.048 .
Živković, Ljiljana S., Popić, Jovan P., Jegdić, Bore, Dohcevic-Mitrovic, Z., Bajat, Jelena, Mišković-Stanković, Vesna, "Corrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potential" in Surface and Coatings Technology, 240 (2014):327-335,
https://doi.org/10.1016/j.surfcoat.2013.12.048 . .
29
24
32

Corrosion properties of an aluminium alloy 7000 series after a new two step precipitation hardening

Jegdić, Bore; Bobić, Biljana; Gligorijević, Bojan; Mišković-Stanković, Vesna

(Belgrade, Serbia : Engineering Society for Corrosion, 2014)

TY  - JOUR
AU  - Jegdić, Bore
AU  - Bobić, Biljana
AU  - Gligorijević, Bojan
AU  - Mišković-Stanković, Vesna
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1483
AB  - Corrosion properties of an aluminium alloy 7000 series were investigated by different electrochemical methods. The alloy was subjected to the one-step and to a new two-step precipitation hardening. Polarization measurements in the 3.5 wt. % NaCl solution have shown a more positive value of the pitting potential (Epit) and a higher corrosion resistance for the two-step aged alloy. The electrochemical impedance spectroscopy (EIS) has also shown that the two-step aged alloy has better corrosion properties (higher value of polarization resistance, Rp, and lower value of double-layer capacitance, Cdl) comparing to the one-step aged alloy.
AB  - Otpornost prema koroziji aluminijumske legure serije 7000 ispitivana je primenom različitih elektrohemijskih metoda. Legura je bila podvrgnuta jednostepenom i novom dvostepenom termičkom taloženju. Polarizaciona merenja u 3,5 mas.% NaCl su pokazala da legura posle dvostepenog termičkog taloženja ima pozitivniju vrednost potencijala pitinga (Epit) i veću otpornost prema koroziji. Spektroskopija elektrohemijske impedancije (SEI) je takođe pokazala da legura posle dvostepenog termičkog taloženja ima bolju otpornost prema koroziji (veću vrednost polarizacione otpornosti, Rp i manju vrednost kapacitivnosti dvojnog sloja, Cdl) u poređenju sa legurom posle jednostepenog termičkog taloženja.
PB  - Belgrade, Serbia : Engineering Society for Corrosion
T2  - Zaštita materijala
T1  - Corrosion properties of an aluminium alloy 7000 series after a new two step precipitation hardening
T1  - Otpornost prema koroziji aluminijumske legure serije 7000 posle novog dvostepenog termičkog taloženja
VL  - 55
IS  - 4
SP  - 387
EP  - 394
DO  - 10.5937/ZasMat1404387J
ER  - 
@article{
author = "Jegdić, Bore and Bobić, Biljana and Gligorijević, Bojan and Mišković-Stanković, Vesna",
year = "2014",
abstract = "Corrosion properties of an aluminium alloy 7000 series were investigated by different electrochemical methods. The alloy was subjected to the one-step and to a new two-step precipitation hardening. Polarization measurements in the 3.5 wt. % NaCl solution have shown a more positive value of the pitting potential (Epit) and a higher corrosion resistance for the two-step aged alloy. The electrochemical impedance spectroscopy (EIS) has also shown that the two-step aged alloy has better corrosion properties (higher value of polarization resistance, Rp, and lower value of double-layer capacitance, Cdl) comparing to the one-step aged alloy., Otpornost prema koroziji aluminijumske legure serije 7000 ispitivana je primenom različitih elektrohemijskih metoda. Legura je bila podvrgnuta jednostepenom i novom dvostepenom termičkom taloženju. Polarizaciona merenja u 3,5 mas.% NaCl su pokazala da legura posle dvostepenog termičkog taloženja ima pozitivniju vrednost potencijala pitinga (Epit) i veću otpornost prema koroziji. Spektroskopija elektrohemijske impedancije (SEI) je takođe pokazala da legura posle dvostepenog termičkog taloženja ima bolju otpornost prema koroziji (veću vrednost polarizacione otpornosti, Rp i manju vrednost kapacitivnosti dvojnog sloja, Cdl) u poređenju sa legurom posle jednostepenog termičkog taloženja.",
publisher = "Belgrade, Serbia : Engineering Society for Corrosion",
journal = "Zaštita materijala",
title = "Corrosion properties of an aluminium alloy 7000 series after a new two step precipitation hardening, Otpornost prema koroziji aluminijumske legure serije 7000 posle novog dvostepenog termičkog taloženja",
volume = "55",
number = "4",
pages = "387-394",
doi = "10.5937/ZasMat1404387J"
}
Jegdić, B., Bobić, B., Gligorijević, B.,& Mišković-Stanković, V.. (2014). Corrosion properties of an aluminium alloy 7000 series after a new two step precipitation hardening. in Zaštita materijala
Belgrade, Serbia : Engineering Society for Corrosion., 55(4), 387-394.
https://doi.org/10.5937/ZasMat1404387J
Jegdić B, Bobić B, Gligorijević B, Mišković-Stanković V. Corrosion properties of an aluminium alloy 7000 series after a new two step precipitation hardening. in Zaštita materijala. 2014;55(4):387-394.
doi:10.5937/ZasMat1404387J .
Jegdić, Bore, Bobić, Biljana, Gligorijević, Bojan, Mišković-Stanković, Vesna, "Corrosion properties of an aluminium alloy 7000 series after a new two step precipitation hardening" in Zaštita materijala, 55, no. 4 (2014):387-394,
https://doi.org/10.5937/ZasMat1404387J . .
2

Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method

Jegdić, Bore; Živković, Ljiljana S.; Popić, Jovan P.; Bajat, Jelena; Mišković-Stanković, Vesna

(Serbian Chemical Society, 2013)

TY  - JOUR
AU  - Jegdić, Bore
AU  - Živković, Ljiljana S.
AU  - Popić, Jovan P.
AU  - Bajat, Jelena
AU  - Mišković-Stanković, Vesna
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1207
AB  - Dip-immersion is a simple and cost-effective method for the preparation of Ce-based conversion coatings (CeCCs), a promising alternative to toxic chromate coatings, on metal substrates. In this work, CeCCs were prepared on Al-alloy AA6060 from an aqueous solution of cerium chloride at room temperature. The effect of immersion time and post-treatment in phosphate solution on the microstructure and corrosion properties of the coatings was studied. The longer the immersion time was, the thicker but more nonhomogeneous and cracked were the CeCCs. The post-treatment contributed to a sealing of the cracks, as proven by an increase in the corrosion resistance compared with the as-deposited coatings. The CeCCs prepared at longer deposition times and post-treated showed much better corrosion protection than those prepared at shorter deposition times. A detailed electrochemical impedance spectroscopy (EIS) study was undertaken to follow the evolution of the corrosion behaviour of the CeCCs with time of exposure to an aggressive chloride environment (3.5 % NaCl). For the sake of comparison, the EIS properties of bare AA6060 were also investigated. Linear voltammetry was performed to complete the study. The results confirmed the formation of protective CeCCs on the surface of AA6060. However, even CeCCs prepared at longer deposition times and post-treated provided short term protection in the aggressive environment, due to the small thickness of the coating.
AB  - Nanošenje prevlaka potapanjem u rastvor je jednostavna i ekonomski prihvatljiva metoda za pripremu konverzionih prevlaka na bazi cerijuma na metalnim supstratima, koje su dobra zamena za toksične hromatne prevlake. U ovom radu prevlake na bazi cerijuma su nanesene na aluminijumsku leguru AA6060 iz vodenog rastvora cerijum-hlorida na sobnoj temperaturi. Ispitivan je uticaj vremena potapanja i uticaj naknadnog tretmana u fosfatnom rastvoru na mikrostrukturu i zaštitna svojstva dobijenih prevlaka. Dužim potapanjem su dobijene deblje ali nehomogene prevlake. Naknadni tretman je povoljno uticao na zatvaranje prskotina, što je u saglasnosti sa izmerenom većom korozionom otpornošću u poređenju sa prevlakama bez tretmana. Prevlake dobijene dužim nanošenjem su pokazale bolju korozionu zaštitu od prevlaka dobijenih kraćim nanošenjem. Koroziona stabilnost prevlaka je ispitivana u agresivnoj hloridnoj sredini (3,5 % NaCl) metodama spektroskopije elektrohemijske impedancije (SEI) i linearne voltametrije. Detaljno je praćeno koroziono ponašanje prevlaka sa vremenom delovanja korozionog agensa. Poređenja radi, SEI analiza je sprovedena i za leguru AA6060 bez prevlake. Rezultati istraživanja potvrđuju da dobijene prevlake na bazi cerijuma predstavljaju dobru korozionu zaštitu leguri AA6060. Međutim, čak i kvalitetnija prevlaka (20 min potapanja i naknadno tretirana u fosfatnom rastvoru) obezbeđuje leguri kratkoročnu zaštitu u agresivnoj sredini usled svoje male debljine.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method
T1  - Elektrohemijske metode za ispitivanje korozione stabilnosti prevlaka na bazi cerijuma dobijenih potapanjem na leguri AA6060
VL  - 78
IS  - 7
SP  - 997
EP  - 1011
DO  - 10.2298/JSC121212009J
ER  - 
@article{
author = "Jegdić, Bore and Živković, Ljiljana S. and Popić, Jovan P. and Bajat, Jelena and Mišković-Stanković, Vesna",
year = "2013",
abstract = "Dip-immersion is a simple and cost-effective method for the preparation of Ce-based conversion coatings (CeCCs), a promising alternative to toxic chromate coatings, on metal substrates. In this work, CeCCs were prepared on Al-alloy AA6060 from an aqueous solution of cerium chloride at room temperature. The effect of immersion time and post-treatment in phosphate solution on the microstructure and corrosion properties of the coatings was studied. The longer the immersion time was, the thicker but more nonhomogeneous and cracked were the CeCCs. The post-treatment contributed to a sealing of the cracks, as proven by an increase in the corrosion resistance compared with the as-deposited coatings. The CeCCs prepared at longer deposition times and post-treated showed much better corrosion protection than those prepared at shorter deposition times. A detailed electrochemical impedance spectroscopy (EIS) study was undertaken to follow the evolution of the corrosion behaviour of the CeCCs with time of exposure to an aggressive chloride environment (3.5 % NaCl). For the sake of comparison, the EIS properties of bare AA6060 were also investigated. Linear voltammetry was performed to complete the study. The results confirmed the formation of protective CeCCs on the surface of AA6060. However, even CeCCs prepared at longer deposition times and post-treated provided short term protection in the aggressive environment, due to the small thickness of the coating., Nanošenje prevlaka potapanjem u rastvor je jednostavna i ekonomski prihvatljiva metoda za pripremu konverzionih prevlaka na bazi cerijuma na metalnim supstratima, koje su dobra zamena za toksične hromatne prevlake. U ovom radu prevlake na bazi cerijuma su nanesene na aluminijumsku leguru AA6060 iz vodenog rastvora cerijum-hlorida na sobnoj temperaturi. Ispitivan je uticaj vremena potapanja i uticaj naknadnog tretmana u fosfatnom rastvoru na mikrostrukturu i zaštitna svojstva dobijenih prevlaka. Dužim potapanjem su dobijene deblje ali nehomogene prevlake. Naknadni tretman je povoljno uticao na zatvaranje prskotina, što je u saglasnosti sa izmerenom većom korozionom otpornošću u poređenju sa prevlakama bez tretmana. Prevlake dobijene dužim nanošenjem su pokazale bolju korozionu zaštitu od prevlaka dobijenih kraćim nanošenjem. Koroziona stabilnost prevlaka je ispitivana u agresivnoj hloridnoj sredini (3,5 % NaCl) metodama spektroskopije elektrohemijske impedancije (SEI) i linearne voltametrije. Detaljno je praćeno koroziono ponašanje prevlaka sa vremenom delovanja korozionog agensa. Poređenja radi, SEI analiza je sprovedena i za leguru AA6060 bez prevlake. Rezultati istraživanja potvrđuju da dobijene prevlake na bazi cerijuma predstavljaju dobru korozionu zaštitu leguri AA6060. Međutim, čak i kvalitetnija prevlaka (20 min potapanja i naknadno tretirana u fosfatnom rastvoru) obezbeđuje leguri kratkoročnu zaštitu u agresivnoj sredini usled svoje male debljine.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method, Elektrohemijske metode za ispitivanje korozione stabilnosti prevlaka na bazi cerijuma dobijenih potapanjem na leguri AA6060",
volume = "78",
number = "7",
pages = "997-1011",
doi = "10.2298/JSC121212009J"
}
Jegdić, B., Živković, L. S., Popić, J. P., Bajat, J.,& Mišković-Stanković, V.. (2013). Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 78(7), 997-1011.
https://doi.org/10.2298/JSC121212009J
Jegdić B, Živković LS, Popić JP, Bajat J, Mišković-Stanković V. Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method. in Journal of the Serbian Chemical Society. 2013;78(7):997-1011.
doi:10.2298/JSC121212009J .
Jegdić, Bore, Živković, Ljiljana S., Popić, Jovan P., Bajat, Jelena, Mišković-Stanković, Vesna, "Electrochemical methods for corrosion testing of Ce-based coatings prepared on AA6060 alloy by the dip immersion method" in Journal of the Serbian Chemical Society, 78, no. 7 (2013):997-1011,
https://doi.org/10.2298/JSC121212009J . .
9
6
10

The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060

Živković, Ljiljana S.; Jegdić, Bore; Popić, Jovan P.; Bajat, Jelena; Mišković-Stanković, Vesna

(Elsevier Science Sa, Lausanne, 2013)

TY  - JOUR
AU  - Živković, Ljiljana S.
AU  - Jegdić, Bore
AU  - Popić, Jovan P.
AU  - Bajat, Jelena
AU  - Mišković-Stanković, Vesna
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1217
AB  - Cerium-based conversion coatings (CeCCs) are one of the most prospective alternatives to the widely used chromate conversion coatings (CCCs) due to their anticorrosion efficiency, environmentally friendly nature and low cost. In this work, the CeCCs on AA6060 were prepared by immersion into aqueous cerium salt solutions at room temperature, and subsequently post-treated in heated phosphate solution. The effect of counter ion (nitrate and chloride) on the coating properties was studied testing CeCCs as sole or conversion layers for the top polyester coating. Since the 60 mu m thick polyester coating was applied, an artificial defect of 0.8 mm hole was introduced to faster assess the differences between pretreatments. The system with CCC pretreatment was used as reference. Corrosion properties were investigated in 0.5 M NaCl solution by electrochemical impedance spectroscopy while the adhesion strength was measured by NMPR (N-methyl-2-pyrrolidone) and pull-off tests. As shown, the post-treated chloride-based CeCC offered better protection than crack-free thin nitrate-based CeCC, when used as sole coatings. On the other hand, it was brought to evidence that in combination with top powder polyester coating, the CeCC deposited from nitrate solution exhibited better protection compared to protective system pretreated with chloride-based one. Excellent polyester coating adhesion was found independently on aluminium surface pretreatment.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060
VL  - 76
IS  - 10
SP  - 1387
EP  - 1395
DO  - 10.1016/j.porgcoat.2013.04.017
ER  - 
@article{
author = "Živković, Ljiljana S. and Jegdić, Bore and Popić, Jovan P. and Bajat, Jelena and Mišković-Stanković, Vesna",
year = "2013",
abstract = "Cerium-based conversion coatings (CeCCs) are one of the most prospective alternatives to the widely used chromate conversion coatings (CCCs) due to their anticorrosion efficiency, environmentally friendly nature and low cost. In this work, the CeCCs on AA6060 were prepared by immersion into aqueous cerium salt solutions at room temperature, and subsequently post-treated in heated phosphate solution. The effect of counter ion (nitrate and chloride) on the coating properties was studied testing CeCCs as sole or conversion layers for the top polyester coating. Since the 60 mu m thick polyester coating was applied, an artificial defect of 0.8 mm hole was introduced to faster assess the differences between pretreatments. The system with CCC pretreatment was used as reference. Corrosion properties were investigated in 0.5 M NaCl solution by electrochemical impedance spectroscopy while the adhesion strength was measured by NMPR (N-methyl-2-pyrrolidone) and pull-off tests. As shown, the post-treated chloride-based CeCC offered better protection than crack-free thin nitrate-based CeCC, when used as sole coatings. On the other hand, it was brought to evidence that in combination with top powder polyester coating, the CeCC deposited from nitrate solution exhibited better protection compared to protective system pretreated with chloride-based one. Excellent polyester coating adhesion was found independently on aluminium surface pretreatment.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060",
volume = "76",
number = "10",
pages = "1387-1395",
doi = "10.1016/j.porgcoat.2013.04.017"
}
Živković, L. S., Jegdić, B., Popić, J. P., Bajat, J.,& Mišković-Stanković, V.. (2013). The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 76(10), 1387-1395.
https://doi.org/10.1016/j.porgcoat.2013.04.017
Živković LS, Jegdić B, Popić JP, Bajat J, Mišković-Stanković V. The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060. in Progress in Organic Coatings. 2013;76(10):1387-1395.
doi:10.1016/j.porgcoat.2013.04.017 .
Živković, Ljiljana S., Jegdić, Bore, Popić, Jovan P., Bajat, Jelena, Mišković-Stanković, Vesna, "The influence of Ce-based coatings as pretreatments on corrosion stability of top powder polyester coating on AA6060" in Progress in Organic Coatings, 76, no. 10 (2013):1387-1395,
https://doi.org/10.1016/j.porgcoat.2013.04.017 . .
15
12
16

Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique

Popić, Jovan P.; Jegdić, Bore; Bajat, Jelena; Mitrić, Miodrag; Mišković-Stanković, Vesna

(Serbian Chemical Society, 2013)

TY  - JOUR
AU  - Popić, Jovan P.
AU  - Jegdić, Bore
AU  - Bajat, Jelena
AU  - Mitrić, Miodrag
AU  - Mišković-Stanković, Vesna
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1310
AB  - In this study, the effect of deposition time and concentration of NaNO2 in the phosphate bath on the surface morphology of iron-phosphate coatings on low carbon steel was investigated using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The composition of ironphosphate coatings was determined using energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD), while surface coverage was evaluated by the voltammetric anodic dissolution (VAD) technique in the borate solution. The addition of NaNO2 to the phosphate bath significantly increased the surface coverage since better packed crystals of smaller size, which favour the phosphate nucleation, were obtained. It was also shown that prolonged deposition time increased the surface coverage, coating roughness and crystal size in the lateral direction, altering also the crystal shape from large platelets non-uniformly distributed on the steel surface during the initial time to better packed laminated and needle-like structures during prolonged exposure.
AB  - U ovom radu je, primenom skenirajuće elektronske mikroskopije (SEM) i mikro- skopije međuatomskih sila (AFM), ispitivan uticaj vremena taloženja i koncentracije NaNO2 u rastvoru za fosfatiranje na morfologiju gvožđe-fosfatnih prevlaka na nisko-ugljeničnom čeliku. Sastav gvožđe–fosfatnih prevlaka je određen primenom energetske disperzione atomske analize (EDS) i difrakcijom H-zraka (XRD), dok je pokrivenost površine određivana anodnim rastvaranjem u boratnom rastvoru primenom linearne voltametrije (VAD). Pokazano je da dodatak NaNO2 u rastvoru za fosfatiranje značajno povećava pokrivenost površine čelika, jer se formiraju bolje pakovani kristali, manje veličine. Duže vreme taloženja takođe povećava pokrivenost površine, kao i hrapavost prevlake i širinu kristala. Oblik kristala se tokom dužeg vremena taloženja menja od kristala u obliku većih ploča neuniformno raspoređenih na površini čelika, ka bolje pakovanim laminarnim i igličastim kristalima.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique
T1  - Određivanje pokrivenosti površine čelika gvožđe-fosfatnim prevlakama anodnim rastvaranjem primenom linearne voltametrije
VL  - 78
IS  - 1
SP  - 101
EP  - 114
DO  - 10.2298/JSC120706096P
ER  - 
@article{
author = "Popić, Jovan P. and Jegdić, Bore and Bajat, Jelena and Mitrić, Miodrag and Mišković-Stanković, Vesna",
year = "2013",
abstract = "In this study, the effect of deposition time and concentration of NaNO2 in the phosphate bath on the surface morphology of iron-phosphate coatings on low carbon steel was investigated using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The composition of ironphosphate coatings was determined using energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD), while surface coverage was evaluated by the voltammetric anodic dissolution (VAD) technique in the borate solution. The addition of NaNO2 to the phosphate bath significantly increased the surface coverage since better packed crystals of smaller size, which favour the phosphate nucleation, were obtained. It was also shown that prolonged deposition time increased the surface coverage, coating roughness and crystal size in the lateral direction, altering also the crystal shape from large platelets non-uniformly distributed on the steel surface during the initial time to better packed laminated and needle-like structures during prolonged exposure., U ovom radu je, primenom skenirajuće elektronske mikroskopije (SEM) i mikro- skopije međuatomskih sila (AFM), ispitivan uticaj vremena taloženja i koncentracije NaNO2 u rastvoru za fosfatiranje na morfologiju gvožđe-fosfatnih prevlaka na nisko-ugljeničnom čeliku. Sastav gvožđe–fosfatnih prevlaka je određen primenom energetske disperzione atomske analize (EDS) i difrakcijom H-zraka (XRD), dok je pokrivenost površine određivana anodnim rastvaranjem u boratnom rastvoru primenom linearne voltametrije (VAD). Pokazano je da dodatak NaNO2 u rastvoru za fosfatiranje značajno povećava pokrivenost površine čelika, jer se formiraju bolje pakovani kristali, manje veličine. Duže vreme taloženja takođe povećava pokrivenost površine, kao i hrapavost prevlake i širinu kristala. Oblik kristala se tokom dužeg vremena taloženja menja od kristala u obliku većih ploča neuniformno raspoređenih na površini čelika, ka bolje pakovanim laminarnim i igličastim kristalima.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique, Određivanje pokrivenosti površine čelika gvožđe-fosfatnim prevlakama anodnim rastvaranjem primenom linearne voltametrije",
volume = "78",
number = "1",
pages = "101-114",
doi = "10.2298/JSC120706096P"
}
Popić, J. P., Jegdić, B., Bajat, J., Mitrić, M.,& Mišković-Stanković, V.. (2013). Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 78(1), 101-114.
https://doi.org/10.2298/JSC120706096P
Popić JP, Jegdić B, Bajat J, Mitrić M, Mišković-Stanković V. Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique. in Journal of the Serbian Chemical Society. 2013;78(1):101-114.
doi:10.2298/JSC120706096P .
Popić, Jovan P., Jegdić, Bore, Bajat, Jelena, Mitrić, Miodrag, Mišković-Stanković, Vesna, "Determination of surface coverage of iron-phosphate coatings on steel using the voltammetric anodic dissolution technique" in Journal of the Serbian Chemical Society, 78, no. 1 (2013):101-114,
https://doi.org/10.2298/JSC120706096P . .
8
3
5

Cerium oxide as conversion coating for the corrosion protection of aluminum

Gulicovski, Jelena; Bajat, Jelena; Mišković-Stanković, Vesna; Jokić, Bojan; Panić, Vladimir; Milonjić, Slobodan

(International Association of Physical Chemists (IAPC), 2013)

TY  - JOUR
AU  - Gulicovski, Jelena
AU  - Bajat, Jelena
AU  - Mišković-Stanković, Vesna
AU  - Jokić, Bojan
AU  - Panić, Vladimir
AU  - Milonjić, Slobodan
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3442
AB  - CeO2 coatings were formed on the aluminum after Al surface preparation, by dripping the ceria sol, pre­viously prepared by forced hydrolysis of Ce(NO3)4. The anticorrosive properties of ceria coatings were investigated by the electrochemical impedance spectroscopy (EIS) during the exposure to 0.03% NaCl. The morphology of the coa­tings was examined by the scanning electron microscopy (SEM). EIS data indicated considerably larger corrosion resistance of CeO2-coated aluminum than for bare Al. The corrosion processes on Al below CeO2 coating are sub­jected to more pronounced diffusion limitations in com­parison to the processes below passive aluminum oxide film, as the consequence of the formation of highly com­pact protective coating. The results show that the deposi­tion of ceria coatings is an effective way to improve corro­sion resistance for aluminum.
PB  - International Association of Physical Chemists (IAPC)
T2  - Journal of Electrochemical Science and Engineering
T1  - Cerium oxide as conversion coating for the corrosion protection of aluminum
VL  - 3
IS  - 4
SP  - 151
EP  - 156
DO  - 10.5599/jese.2013.0037
ER  - 
@article{
author = "Gulicovski, Jelena and Bajat, Jelena and Mišković-Stanković, Vesna and Jokić, Bojan and Panić, Vladimir and Milonjić, Slobodan",
year = "2013",
abstract = "CeO2 coatings were formed on the aluminum after Al surface preparation, by dripping the ceria sol, pre­viously prepared by forced hydrolysis of Ce(NO3)4. The anticorrosive properties of ceria coatings were investigated by the electrochemical impedance spectroscopy (EIS) during the exposure to 0.03% NaCl. The morphology of the coa­tings was examined by the scanning electron microscopy (SEM). EIS data indicated considerably larger corrosion resistance of CeO2-coated aluminum than for bare Al. The corrosion processes on Al below CeO2 coating are sub­jected to more pronounced diffusion limitations in com­parison to the processes below passive aluminum oxide film, as the consequence of the formation of highly com­pact protective coating. The results show that the deposi­tion of ceria coatings is an effective way to improve corro­sion resistance for aluminum.",
publisher = "International Association of Physical Chemists (IAPC)",
journal = "Journal of Electrochemical Science and Engineering",
title = "Cerium oxide as conversion coating for the corrosion protection of aluminum",
volume = "3",
number = "4",
pages = "151-156",
doi = "10.5599/jese.2013.0037"
}
Gulicovski, J., Bajat, J., Mišković-Stanković, V., Jokić, B., Panić, V.,& Milonjić, S.. (2013). Cerium oxide as conversion coating for the corrosion protection of aluminum. in Journal of Electrochemical Science and Engineering
International Association of Physical Chemists (IAPC)., 3(4), 151-156.
https://doi.org/10.5599/jese.2013.0037
Gulicovski J, Bajat J, Mišković-Stanković V, Jokić B, Panić V, Milonjić S. Cerium oxide as conversion coating for the corrosion protection of aluminum. in Journal of Electrochemical Science and Engineering. 2013;3(4):151-156.
doi:10.5599/jese.2013.0037 .
Gulicovski, Jelena, Bajat, Jelena, Mišković-Stanković, Vesna, Jokić, Bojan, Panić, Vladimir, Milonjić, Slobodan, "Cerium oxide as conversion coating for the corrosion protection of aluminum" in Journal of Electrochemical Science and Engineering, 3, no. 4 (2013):151-156,
https://doi.org/10.5599/jese.2013.0037 . .
4

The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium

Djosic, M. S.; Panić, Vladimir; Stojanovic, J.; Mitrić, Miodrag; Mišković-Stanković, Vesna

(Elsevier, 2012)

TY  - JOUR
AU  - Djosic, M. S.
AU  - Panić, Vladimir
AU  - Stojanovic, J.
AU  - Mitrić, Miodrag
AU  - Mišković-Stanković, Vesna
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/950
AB  - Electrochemical deposition of calcium phosphate coatings on titanium was performed galvanostatically from the aqueous solution of Ca(NO3)(2) and NH4H2PO4 with the current densities between 5.0 and 10 mA cm(-2), for different deposition times, at room temperature. The coatings were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results showed that dicalcium phosphate dihydrate (DCPD), brushite (CaHPO4 center dot 2H(2)O) coatings were deposited. The influence of applied current density and the deposition time on the phase composition, crystallite domain size and the morphology of brushite coatings were investigated. It was shown that brushite coating of the greatest mass was obtained for the longest deposition time, while the increase in current density over 7 mA cm(-2) does not affect significantly the mass of brushite coatings. The finest crystallites, with the smallest crystallite domain size of 15.6nm, were deposited at the current density of 9.0 mA cm(-2). Brushite coatings were fully converted to hydroxyapatite in simulated body fluid (SBF) which was confirmed by XRD and SEM. The crystallite domain size of HA coatings is controlled by applied current density for brushite coatings deposition: crystallization of HA at more porous brushite coatings, deposited at higher current density, caused the formation of smaller crystallites of hydroxyapatite.
PB  - Elsevier
T2  - Colloids and Surfaces A-Physicochemical and Engineering Aspects
T1  - The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium
VL  - 400
SP  - 36
EP  - 43
DO  - 10.1016/j.colsurfa.2012.02.040
ER  - 
@article{
author = "Djosic, M. S. and Panić, Vladimir and Stojanovic, J. and Mitrić, Miodrag and Mišković-Stanković, Vesna",
year = "2012",
abstract = "Electrochemical deposition of calcium phosphate coatings on titanium was performed galvanostatically from the aqueous solution of Ca(NO3)(2) and NH4H2PO4 with the current densities between 5.0 and 10 mA cm(-2), for different deposition times, at room temperature. The coatings were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results showed that dicalcium phosphate dihydrate (DCPD), brushite (CaHPO4 center dot 2H(2)O) coatings were deposited. The influence of applied current density and the deposition time on the phase composition, crystallite domain size and the morphology of brushite coatings were investigated. It was shown that brushite coating of the greatest mass was obtained for the longest deposition time, while the increase in current density over 7 mA cm(-2) does not affect significantly the mass of brushite coatings. The finest crystallites, with the smallest crystallite domain size of 15.6nm, were deposited at the current density of 9.0 mA cm(-2). Brushite coatings were fully converted to hydroxyapatite in simulated body fluid (SBF) which was confirmed by XRD and SEM. The crystallite domain size of HA coatings is controlled by applied current density for brushite coatings deposition: crystallization of HA at more porous brushite coatings, deposited at higher current density, caused the formation of smaller crystallites of hydroxyapatite.",
publisher = "Elsevier",
journal = "Colloids and Surfaces A-Physicochemical and Engineering Aspects",
title = "The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium",
volume = "400",
pages = "36-43",
doi = "10.1016/j.colsurfa.2012.02.040"
}
Djosic, M. S., Panić, V., Stojanovic, J., Mitrić, M.,& Mišković-Stanković, V.. (2012). The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium. in Colloids and Surfaces A-Physicochemical and Engineering Aspects
Elsevier., 400, 36-43.
https://doi.org/10.1016/j.colsurfa.2012.02.040
Djosic MS, Panić V, Stojanovic J, Mitrić M, Mišković-Stanković V. The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium. in Colloids and Surfaces A-Physicochemical and Engineering Aspects. 2012;400:36-43.
doi:10.1016/j.colsurfa.2012.02.040 .
Djosic, M. S., Panić, Vladimir, Stojanovic, J., Mitrić, Miodrag, Mišković-Stanković, Vesna, "The effect of applied current density on the surface morphology of deposited calcium phosphate coatings on titanium" in Colloids and Surfaces A-Physicochemical and Engineering Aspects, 400 (2012):36-43,
https://doi.org/10.1016/j.colsurfa.2012.02.040 . .
46
41
50

The effect of deposition temperature on the surface coverage and morphology of iron-phosphate coatings on low carbon steel

Popić, Jovan P.; Jegdić, Bore; Bajat, Jelena; Veljović, Đorđe; Stevanović, Sanja; Mišković-Stanković, Vesna

(Elsevier, 2011)

TY  - JOUR
AU  - Popić, Jovan P.
AU  - Jegdić, Bore
AU  - Bajat, Jelena
AU  - Veljović, Đorđe
AU  - Stevanović, Sanja
AU  - Mišković-Stanković, Vesna
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/847
AB  - The influence of deposition temperature and concentration of NaNO(2) in the phosphating bath on the surface morphology and coverage of iron-phosphate coatings on low carbon steel was investigated. The phosphate coatings were chemically deposited on steel from phosphate bath at different temperatures (30-70 degrees C) and with the addition of different amounts of accelerator, NaNO(2) (0.1, 0.5 and 1.0 g dm(-3)). The morphology of phosphate coatings was investigated using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The composition of iron-phosphate coatings was determined using energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). Surface coverage was evaluated by the voltammetric anodic dissolution (VAD) technique. It was shown that the increase in temperature of the NaNO(2)-free phosphating bath up to 70 degrees C caused an increase in surface coverage. The addition of NaNO(2) in the phosphating bath significantly increased the surface coverage of phosphate coatings deposited at temperatures lower than 50 degrees C. The phosphate crystals were of laminated and needle-like structures for deposits obtained at temperatures lower than 50 degrees C, while at higher temperatures needle-like structure was transformed to laminated structure. The increase in NaNO(2) concentration in the phosphating bath from 0.1 to 1.0 g dm(-3) did not significantly increase the surface coverage, but decreased the crystals size, consequently favouring the phosphate nucleation and better packing of the crystals.
PB  - Elsevier
T2  - Applied Surface Science
T1  - The effect of deposition temperature on the surface coverage and morphology of iron-phosphate coatings on low carbon steel
VL  - 257
IS  - 24
SP  - 10855
EP  - 10862
DO  - 10.1016/j.apsusc.2011.07.122
ER  - 
@article{
author = "Popić, Jovan P. and Jegdić, Bore and Bajat, Jelena and Veljović, Đorđe and Stevanović, Sanja and Mišković-Stanković, Vesna",
year = "2011",
abstract = "The influence of deposition temperature and concentration of NaNO(2) in the phosphating bath on the surface morphology and coverage of iron-phosphate coatings on low carbon steel was investigated. The phosphate coatings were chemically deposited on steel from phosphate bath at different temperatures (30-70 degrees C) and with the addition of different amounts of accelerator, NaNO(2) (0.1, 0.5 and 1.0 g dm(-3)). The morphology of phosphate coatings was investigated using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The composition of iron-phosphate coatings was determined using energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). Surface coverage was evaluated by the voltammetric anodic dissolution (VAD) technique. It was shown that the increase in temperature of the NaNO(2)-free phosphating bath up to 70 degrees C caused an increase in surface coverage. The addition of NaNO(2) in the phosphating bath significantly increased the surface coverage of phosphate coatings deposited at temperatures lower than 50 degrees C. The phosphate crystals were of laminated and needle-like structures for deposits obtained at temperatures lower than 50 degrees C, while at higher temperatures needle-like structure was transformed to laminated structure. The increase in NaNO(2) concentration in the phosphating bath from 0.1 to 1.0 g dm(-3) did not significantly increase the surface coverage, but decreased the crystals size, consequently favouring the phosphate nucleation and better packing of the crystals.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "The effect of deposition temperature on the surface coverage and morphology of iron-phosphate coatings on low carbon steel",
volume = "257",
number = "24",
pages = "10855-10862",
doi = "10.1016/j.apsusc.2011.07.122"
}
Popić, J. P., Jegdić, B., Bajat, J., Veljović, Đ., Stevanović, S.,& Mišković-Stanković, V.. (2011). The effect of deposition temperature on the surface coverage and morphology of iron-phosphate coatings on low carbon steel. in Applied Surface Science
Elsevier., 257(24), 10855-10862.
https://doi.org/10.1016/j.apsusc.2011.07.122
Popić JP, Jegdić B, Bajat J, Veljović Đ, Stevanović S, Mišković-Stanković V. The effect of deposition temperature on the surface coverage and morphology of iron-phosphate coatings on low carbon steel. in Applied Surface Science. 2011;257(24):10855-10862.
doi:10.1016/j.apsusc.2011.07.122 .
Popić, Jovan P., Jegdić, Bore, Bajat, Jelena, Veljović, Đorđe, Stevanović, Sanja, Mišković-Stanković, Vesna, "The effect of deposition temperature on the surface coverage and morphology of iron-phosphate coatings on low carbon steel" in Applied Surface Science, 257, no. 24 (2011):10855-10862,
https://doi.org/10.1016/j.apsusc.2011.07.122 . .
31
23
34

Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings

Jegdić, Bore; Bajat, Jelena; Popić, Jovan P.; Mišković-Stanković, Vesna

(Elsevier Science Sa, Lausanne, 2011)

TY  - JOUR
AU  - Jegdić, Bore
AU  - Bajat, Jelena
AU  - Popić, Jovan P.
AU  - Mišković-Stanković, Vesna
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/902
AB  - The influence of steel surface pretreatment with different types of iron-phosphate coatings on the corrosion stability and adhesion characteristics of polyester coatings on steel was investigated. The phosphate coating was chemically deposited either from the simple novel plating bath, or with the addition of NaNO(2), as an accelerator in the plating bath. The morphology of phosphate coatings was investigated using atomic force microscopy (AFM). The corrosion stability of polyester coatings on steel pretreated by iron-phosphate coatings was investigated by electrochemical impedance spectroscopy (EIS) in 3% NaCl solution, while "dry" and "wet" adhesion were measured by a direct pull-off standardized procedure. It was shown that greater values of pore resistance. R(p), and smaller values of coating capacitance of polyester coating, C(c), on steel pretreated with iron-phosphate coating were obtained, as compared to polyester coating on steel phosphated with accelerator, and on the bare steel. The surface roughness of phosphate coating deposited on steel from the bath without accelerator is favorable in forming stronger bonds with polyester coating. Namely, the dry and wet adhesion measurements are in accordance with EIS measurements in 3% NaCl solution, i.e. lower adhesion values were obtained for polyester coating on steel phosphated with accelerator and on the bare steel, while the iron-phosphate pretreatment from the novel bath enhanced the adhesion of polyester coating on steel.
PB  - Elsevier Science Sa, Lausanne
T2  - Progress in Organic Coatings
T1  - Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings
VL  - 70
IS  - 2-3
SP  - 127
EP  - 133
DO  - 10.1016/j.porgcoat.2010.11.004
ER  - 
@article{
author = "Jegdić, Bore and Bajat, Jelena and Popić, Jovan P. and Mišković-Stanković, Vesna",
year = "2011",
abstract = "The influence of steel surface pretreatment with different types of iron-phosphate coatings on the corrosion stability and adhesion characteristics of polyester coatings on steel was investigated. The phosphate coating was chemically deposited either from the simple novel plating bath, or with the addition of NaNO(2), as an accelerator in the plating bath. The morphology of phosphate coatings was investigated using atomic force microscopy (AFM). The corrosion stability of polyester coatings on steel pretreated by iron-phosphate coatings was investigated by electrochemical impedance spectroscopy (EIS) in 3% NaCl solution, while "dry" and "wet" adhesion were measured by a direct pull-off standardized procedure. It was shown that greater values of pore resistance. R(p), and smaller values of coating capacitance of polyester coating, C(c), on steel pretreated with iron-phosphate coating were obtained, as compared to polyester coating on steel phosphated with accelerator, and on the bare steel. The surface roughness of phosphate coating deposited on steel from the bath without accelerator is favorable in forming stronger bonds with polyester coating. Namely, the dry and wet adhesion measurements are in accordance with EIS measurements in 3% NaCl solution, i.e. lower adhesion values were obtained for polyester coating on steel phosphated with accelerator and on the bare steel, while the iron-phosphate pretreatment from the novel bath enhanced the adhesion of polyester coating on steel.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Progress in Organic Coatings",
title = "Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings",
volume = "70",
number = "2-3",
pages = "127-133",
doi = "10.1016/j.porgcoat.2010.11.004"
}
Jegdić, B., Bajat, J., Popić, J. P.,& Mišković-Stanković, V.. (2011). Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings. in Progress in Organic Coatings
Elsevier Science Sa, Lausanne., 70(2-3), 127-133.
https://doi.org/10.1016/j.porgcoat.2010.11.004
Jegdić B, Bajat J, Popić JP, Mišković-Stanković V. Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings. in Progress in Organic Coatings. 2011;70(2-3):127-133.
doi:10.1016/j.porgcoat.2010.11.004 .
Jegdić, Bore, Bajat, Jelena, Popić, Jovan P., Mišković-Stanković, Vesna, "Corrosion stability of polyester coatings on steel pretreated with different iron-phosphate coatings" in Progress in Organic Coatings, 70, no. 2-3 (2011):127-133,
https://doi.org/10.1016/j.porgcoat.2010.11.004 . .
17
15
19

The EIS investigation of powder polyester coatings on phosphated low carbon steel: The effect of NaNO2 in the phosphating bath

Jegdić, Bore; Bajat, Jelena; Popić, Jovan P.; Stevanović, Sanja; Mišković-Stanković, Vesna

(Oxford : Pergamon-Elsevier Science Ltd, 2011)

TY  - JOUR
AU  - Jegdić, Bore
AU  - Bajat, Jelena
AU  - Popić, Jovan P.
AU  - Stevanović, Sanja
AU  - Mišković-Stanković, Vesna
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/776
AB  - The effect of different type of iron-phosphate coatings on corrosion stability and adhesion characteristic of top powder polyester coating on steel was investigated. Iron-phosphate coatings were deposited on steel in the novel phosphating bath with or without NaNO2 as an accelerator. The corrosion stability of the powder polyester coating was evaluated by electrochemical impedance spectroscopy (EIS), adhesion by pull-off and NMP test, while surface morphology of phosphate coatings were investigated by atomic force microscopy (AFM). The adhesion and corrosion stability of powder polyester coatings were improved with pretreatment based on iron-phosphate coating deposited from NaNO2-free bath.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Corrosion Science
T1  - The EIS investigation of powder polyester coatings on phosphated low carbon steel: The effect of NaNO2 in the phosphating bath
VL  - 53
IS  - 9
SP  - 2872
EP  - 2880
DO  - 10.1016/j.corsci.2011.05.019
ER  - 
@article{
author = "Jegdić, Bore and Bajat, Jelena and Popić, Jovan P. and Stevanović, Sanja and Mišković-Stanković, Vesna",
year = "2011",
abstract = "The effect of different type of iron-phosphate coatings on corrosion stability and adhesion characteristic of top powder polyester coating on steel was investigated. Iron-phosphate coatings were deposited on steel in the novel phosphating bath with or without NaNO2 as an accelerator. The corrosion stability of the powder polyester coating was evaluated by electrochemical impedance spectroscopy (EIS), adhesion by pull-off and NMP test, while surface morphology of phosphate coatings were investigated by atomic force microscopy (AFM). The adhesion and corrosion stability of powder polyester coatings were improved with pretreatment based on iron-phosphate coating deposited from NaNO2-free bath.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Corrosion Science",
title = "The EIS investigation of powder polyester coatings on phosphated low carbon steel: The effect of NaNO2 in the phosphating bath",
volume = "53",
number = "9",
pages = "2872-2880",
doi = "10.1016/j.corsci.2011.05.019"
}
Jegdić, B., Bajat, J., Popić, J. P., Stevanović, S.,& Mišković-Stanković, V.. (2011). The EIS investigation of powder polyester coatings on phosphated low carbon steel: The effect of NaNO2 in the phosphating bath. in Corrosion Science
Oxford : Pergamon-Elsevier Science Ltd., 53(9), 2872-2880.
https://doi.org/10.1016/j.corsci.2011.05.019
Jegdić B, Bajat J, Popić JP, Stevanović S, Mišković-Stanković V. The EIS investigation of powder polyester coatings on phosphated low carbon steel: The effect of NaNO2 in the phosphating bath. in Corrosion Science. 2011;53(9):2872-2880.
doi:10.1016/j.corsci.2011.05.019 .
Jegdić, Bore, Bajat, Jelena, Popić, Jovan P., Stevanović, Sanja, Mišković-Stanković, Vesna, "The EIS investigation of powder polyester coatings on phosphated low carbon steel: The effect of NaNO2 in the phosphating bath" in Corrosion Science, 53, no. 9 (2011):2872-2880,
https://doi.org/10.1016/j.corsci.2011.05.019 . .
38
32
40

The influence of aluminium surface pretreatment on the corrosion stability and adhesion of powder polyester coating

Bajat, Jelena; Popić, Jovan P.; Mišković-Stanković, Vesna

(Elsevier, 2010)

TY  - JOUR
AU  - Bajat, Jelena
AU  - Popić, Jovan P.
AU  - Mišković-Stanković, Vesna
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3171
AB  - One of the most important factors in corrosion prevention by protective coatings is the coating adhesion loss under environmental influence. Thus, adhesion strength is often used when characterizing protective properties of organic coatings on a metal substrate. In order to improve the adhesion of organic coating the metal substrate is often pretreated in some way. In this work, the adhesion of polyester coatings on differently pretreated aluminium surface (by anodizing, with and without sealing, by phosphating and by silane film deposition) was examined. The dry and wet adhesion of polyester coatings were measured by a direct pull-off standardized procedure, as well as indirectly by NMP test. It was shown that under dry test conditions all polyester coatings showed very good adhesion, but that aluminium surface pretreated by silane film showed superior adhesion. The overall increase of wet adhesion for polyester coating on aluminium pretreated by silane film was maintained throughout the whole investigated time period. The different trends in the change of adhesion of polyester coatings were observed for different aluminium pretreatments during exposure to the corrosive agent (3% NaCl solution). The highest adhesion reduction was obtained for polyester coating on aluminium pretreated with phosphate coating. The corrosion stability of polyester coated aluminium was investigated by electrochemical impedance spectroscopy in 3% NaCl solution. The results confirmed good protective properties of polyester coating on aluminium pretreated with silane film, i.e. greater values of pore resistance and smaller values of coating capacitance were obtained in respect to other protective systems, whereas charge-transfer resistance and double-layer capacitance were not measurable during 2 months of exposure to a corrosive agent.
PB  - Elsevier
T2  - Progress in Organic Coatings
T1  - The influence of aluminium surface pretreatment on the corrosion stability and adhesion of powder polyester coating
VL  - 69
IS  - 4
SP  - 316
EP  - 321
DO  - 10.1016/j.porgcoat.2010.07.004
ER  - 
@article{
author = "Bajat, Jelena and Popić, Jovan P. and Mišković-Stanković, Vesna",
year = "2010",
abstract = "One of the most important factors in corrosion prevention by protective coatings is the coating adhesion loss under environmental influence. Thus, adhesion strength is often used when characterizing protective properties of organic coatings on a metal substrate. In order to improve the adhesion of organic coating the metal substrate is often pretreated in some way. In this work, the adhesion of polyester coatings on differently pretreated aluminium surface (by anodizing, with and without sealing, by phosphating and by silane film deposition) was examined. The dry and wet adhesion of polyester coatings were measured by a direct pull-off standardized procedure, as well as indirectly by NMP test. It was shown that under dry test conditions all polyester coatings showed very good adhesion, but that aluminium surface pretreated by silane film showed superior adhesion. The overall increase of wet adhesion for polyester coating on aluminium pretreated by silane film was maintained throughout the whole investigated time period. The different trends in the change of adhesion of polyester coatings were observed for different aluminium pretreatments during exposure to the corrosive agent (3% NaCl solution). The highest adhesion reduction was obtained for polyester coating on aluminium pretreated with phosphate coating. The corrosion stability of polyester coated aluminium was investigated by electrochemical impedance spectroscopy in 3% NaCl solution. The results confirmed good protective properties of polyester coating on aluminium pretreated with silane film, i.e. greater values of pore resistance and smaller values of coating capacitance were obtained in respect to other protective systems, whereas charge-transfer resistance and double-layer capacitance were not measurable during 2 months of exposure to a corrosive agent.",
publisher = "Elsevier",
journal = "Progress in Organic Coatings",
title = "The influence of aluminium surface pretreatment on the corrosion stability and adhesion of powder polyester coating",
volume = "69",
number = "4",
pages = "316-321",
doi = "10.1016/j.porgcoat.2010.07.004"
}
Bajat, J., Popić, J. P.,& Mišković-Stanković, V.. (2010). The influence of aluminium surface pretreatment on the corrosion stability and adhesion of powder polyester coating. in Progress in Organic Coatings
Elsevier., 69(4), 316-321.
https://doi.org/10.1016/j.porgcoat.2010.07.004
Bajat J, Popić JP, Mišković-Stanković V. The influence of aluminium surface pretreatment on the corrosion stability and adhesion of powder polyester coating. in Progress in Organic Coatings. 2010;69(4):316-321.
doi:10.1016/j.porgcoat.2010.07.004 .
Bajat, Jelena, Popić, Jovan P., Mišković-Stanković, Vesna, "The influence of aluminium surface pretreatment on the corrosion stability and adhesion of powder polyester coating" in Progress in Organic Coatings, 69, no. 4 (2010):316-321,
https://doi.org/10.1016/j.porgcoat.2010.07.004 . .
38
33
39

The study of the iron phosphate coatings porosity in bufered borate solution

Popić, Jovan P.; Jegdić, Bore; Bajat, Jelena; Mišković-Stanković, Vesna

(Serbian Chemical Society, Belgrade, 2010)

TY  - CONF
AU  - Popić, Jovan P.
AU  - Jegdić, Bore
AU  - Bajat, Jelena
AU  - Mišković-Stanković, Vesna
PY  - 2010
UR  - http://www.aseee.eu/index.php/rsesee2-home
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3534
AB  - The iron phosphate layers on the low carbon steel surface slows steel corrosion in aggressive environments. The quality of the iron phosphate layer depends on the fraction of the total surface area covered by phosphate coating. Various factors affect this coverage fraction, in particular the composition of the deposition bath, bath temperature and additives used in the electrolyte. In this study phosphating was carried in the phosphate solution (NaOH + H3PO4 + NaNO2, pH 3.8) at different temperatures (30-70oC). The porosity of phosphate coatings on low carbon steel was determined using VAD technique in the borate solution. Surface morphology of the steel was studied using SEM and AFM technique. Anodic polarization showed that phosphate coatings formed on the steel surface resulted in the decrease of the steel dissolution rate. This effect of the phosphate coatings was more pronounced for coatings deposited at higher temperatures of phosphate solution. The decrease in the steel dissolution rate is caused by the decrease of coating porosity. The addition of NaNO2 in the phosphate solution significantly decreased phosphate coating porosity. The lowest porosity of phosphate coating (35.1%), for deposition time of 5 min, was obtained with 1.0 g dm-3 NaNO2 in the phosphate solution, at 50oC. The study of the phosphate coatings morphology showed that coating was evenly dispersed on the whole steel surface. There were two characteristic forms of phosphates present: laminated structure with needle-like forms. The average concentration of specific elements in the phosphate coatings were: oxygen 37.6%, phosphor 3.26% and iron 59.14%.
PB  - Serbian Chemical Society, Belgrade
C3  - Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
T1  - The study of the iron phosphate coatings porosity in bufered borate solution
SP  - 39
EP  - 39
UR  - https://hdl.handle.net/21.15107/rcub_cer_3534
ER  - 
@conference{
author = "Popić, Jovan P. and Jegdić, Bore and Bajat, Jelena and Mišković-Stanković, Vesna",
year = "2010",
abstract = "The iron phosphate layers on the low carbon steel surface slows steel corrosion in aggressive environments. The quality of the iron phosphate layer depends on the fraction of the total surface area covered by phosphate coating. Various factors affect this coverage fraction, in particular the composition of the deposition bath, bath temperature and additives used in the electrolyte. In this study phosphating was carried in the phosphate solution (NaOH + H3PO4 + NaNO2, pH 3.8) at different temperatures (30-70oC). The porosity of phosphate coatings on low carbon steel was determined using VAD technique in the borate solution. Surface morphology of the steel was studied using SEM and AFM technique. Anodic polarization showed that phosphate coatings formed on the steel surface resulted in the decrease of the steel dissolution rate. This effect of the phosphate coatings was more pronounced for coatings deposited at higher temperatures of phosphate solution. The decrease in the steel dissolution rate is caused by the decrease of coating porosity. The addition of NaNO2 in the phosphate solution significantly decreased phosphate coating porosity. The lowest porosity of phosphate coating (35.1%), for deposition time of 5 min, was obtained with 1.0 g dm-3 NaNO2 in the phosphate solution, at 50oC. The study of the phosphate coatings morphology showed that coating was evenly dispersed on the whole steel surface. There were two characteristic forms of phosphates present: laminated structure with needle-like forms. The average concentration of specific elements in the phosphate coatings were: oxygen 37.6%, phosphor 3.26% and iron 59.14%.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts",
title = "The study of the iron phosphate coatings porosity in bufered borate solution",
pages = "39-39",
url = "https://hdl.handle.net/21.15107/rcub_cer_3534"
}
Popić, J. P., Jegdić, B., Bajat, J.,& Mišković-Stanković, V.. (2010). The study of the iron phosphate coatings porosity in bufered borate solution. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
Serbian Chemical Society, Belgrade., 39-39.
https://hdl.handle.net/21.15107/rcub_cer_3534
Popić JP, Jegdić B, Bajat J, Mišković-Stanković V. The study of the iron phosphate coatings porosity in bufered borate solution. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts. 2010;:39-39.
https://hdl.handle.net/21.15107/rcub_cer_3534 .
Popić, Jovan P., Jegdić, Bore, Bajat, Jelena, Mišković-Stanković, Vesna, "The study of the iron phosphate coatings porosity in bufered borate solution" in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts (2010):39-39,
https://hdl.handle.net/21.15107/rcub_cer_3534 .

The study of the iron phosphate coatings porosity in bufered borate solution

Popić, Jovan P.; Jegdić, Bore; Bajat, Jelena; Mišković-Stanković, Vesna

(Serbian Chemical Society, Belgrade, 2010)

TY  - CONF
AU  - Popić, Jovan P.
AU  - Jegdić, Bore
AU  - Bajat, Jelena
AU  - Mišković-Stanković, Vesna
PY  - 2010
UR  - http://www.aseee.eu/index.php/rsesee2-home
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3535
AB  - The iron phosphate layers on the low carbon steel surface slows steel corrosion in aggressive environments. The quality of the iron phosphate layer depends on the fraction of the total surface area covered by phosphate coating. Various factors affect this coverage fraction, in particular the composition of the deposition bath, bath temperature and additives used in the electrolyte. In this study phosphating was carried in the phosphate solution (NaOH + H3PO4 + NaNO2, pH 3.8) at different temperatures (30-70oC). The porosity of phosphate coatings on low carbon steel was determined using VAD technique in the borate solution. Surface morphology of the steel was studied using SEM and AFM technique. Anodic polarization showed that phosphate coatings formed on the steel surface resulted in the decrease of the steel dissolution rate. This effect of the phosphate coatings was more pronounced for coatings deposited at higher temperatures of phosphate solution. The decrease in the steel dissolution rate is caused by the decrease of coating porosity. The addition of NaNO2 in the phosphate solution significantly decreased phosphate coating porosity. The lowest porosity of phosphate coating (35.1%), for deposition time of 5 min, was obtained with 1.0 g dm-3 NaNO2 in the phosphate solution, at 50oC. The study of the phosphate coatings morphology showed that coating was evenly dispersed on the whole steel surface. There were two characteristic forms of phosphates present: laminated structure with needle-like forms. The average concentration of specific elements in the phosphate coatings were: oxygen 37.6%, phosphor 3.26% and iron 59.14%.
PB  - Serbian Chemical Society, Belgrade
C3  - Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings
T1  - The study of the iron phosphate coatings porosity in bufered borate solution
SP  - 46
EP  - 49
UR  - https://hdl.handle.net/21.15107/rcub_cer_3535
ER  - 
@conference{
author = "Popić, Jovan P. and Jegdić, Bore and Bajat, Jelena and Mišković-Stanković, Vesna",
year = "2010",
abstract = "The iron phosphate layers on the low carbon steel surface slows steel corrosion in aggressive environments. The quality of the iron phosphate layer depends on the fraction of the total surface area covered by phosphate coating. Various factors affect this coverage fraction, in particular the composition of the deposition bath, bath temperature and additives used in the electrolyte. In this study phosphating was carried in the phosphate solution (NaOH + H3PO4 + NaNO2, pH 3.8) at different temperatures (30-70oC). The porosity of phosphate coatings on low carbon steel was determined using VAD technique in the borate solution. Surface morphology of the steel was studied using SEM and AFM technique. Anodic polarization showed that phosphate coatings formed on the steel surface resulted in the decrease of the steel dissolution rate. This effect of the phosphate coatings was more pronounced for coatings deposited at higher temperatures of phosphate solution. The decrease in the steel dissolution rate is caused by the decrease of coating porosity. The addition of NaNO2 in the phosphate solution significantly decreased phosphate coating porosity. The lowest porosity of phosphate coating (35.1%), for deposition time of 5 min, was obtained with 1.0 g dm-3 NaNO2 in the phosphate solution, at 50oC. The study of the phosphate coatings morphology showed that coating was evenly dispersed on the whole steel surface. There were two characteristic forms of phosphates present: laminated structure with needle-like forms. The average concentration of specific elements in the phosphate coatings were: oxygen 37.6%, phosphor 3.26% and iron 59.14%.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings",
title = "The study of the iron phosphate coatings porosity in bufered borate solution",
pages = "46-49",
url = "https://hdl.handle.net/21.15107/rcub_cer_3535"
}
Popić, J. P., Jegdić, B., Bajat, J.,& Mišković-Stanković, V.. (2010). The study of the iron phosphate coatings porosity in bufered borate solution. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings
Serbian Chemical Society, Belgrade., 46-49.
https://hdl.handle.net/21.15107/rcub_cer_3535
Popić JP, Jegdić B, Bajat J, Mišković-Stanković V. The study of the iron phosphate coatings porosity in bufered borate solution. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings. 2010;:46-49.
https://hdl.handle.net/21.15107/rcub_cer_3535 .
Popić, Jovan P., Jegdić, Bore, Bajat, Jelena, Mišković-Stanković, Vesna, "The study of the iron phosphate coatings porosity in bufered borate solution" in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings (2010):46-49,
https://hdl.handle.net/21.15107/rcub_cer_3535 .

Hydroxyapatite coatings on TiO2 nanotubes

Eraković, Sanja; Panić, Vladimir; Jokić, Bojan; Stevanović, Sanja; Mišković-Stanković, Vesna

(Belgrade, Serbia : Engineering Society for Corrosion, 2010)

TY  - JOUR
AU  - Eraković, Sanja
AU  - Panić, Vladimir
AU  - Jokić, Bojan
AU  - Stevanović, Sanja
AU  - Mišković-Stanković, Vesna
PY  - 2010
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/749
AB  - The aim of this work was to obtain nanotubular TiO2 layer by anodization of titanium substrate, and to prepare hydroxyapatite (HAP) coatings by electrophoretic deposition over nanotubular TiO2 layer. The presence of fluoride ion in the electrolyte for anodization causes the formation of TiO2 nanotubes. The Ti surface modified with TiO2 nanotubes was used for fabrication of HAP coatings by electrophoretic deposition. Acidic medium provides formation of short nanotubes which are more suitable for deposition of HAP coatings. Ti plates were thermally treated after anodization in order to gain more defined structure of nanotubular TiO2 layer. Compact HAP coatings with good adhesion were produced by electrophoretic deposition on thermally treated and untreated anodized specimens. The results showed that coating mass increases with deposition time, but prolongation of the deposition time causes the decrease of HAP coating adhesion. .
AB  - Cilj ovog rada je dobijanje nanotubularnog TiO2 sloja na titanu postupkom anodizacije i ispitivanje parametara elektroforetskog taloženja prevlaka hidroksiapatita (HAP) na formiranom međusloju nanotubularnog TiO2. Pokazano je da anodizacija titana u elektrolitu koji sadrži fluoridne jone omogućava formiranje nanotuba TiO2 na površini titana. Površina titana modifikovana nanotubama TiO2 je korišćena kao podloga za kataforetsko taloženje prevlaka hidroksiapatita iz etanolske suspenzije. Kisela sredina za anodizaciju titana omogućava dobijanje kraćih nanotuba koje su se pokazale kao bolja podloga za nanošenje HAP prevlaka. Nakon anodizacije, titanske pločice su termički tretirane da bi se dobila definisanija struktura nanotubularnog TiO2 sloja. Kataforetskim taloženjem dobijene su dobro prianjajuće i kompaktne HAP prevlake na termički tretiranim i netretiranim anodiziranim uzorcima. Rezultati pokazuju da pri vremenima taloženja dužim od 45 min dolazi do smanjenja adhezije prevlake hidroksiapatita.
PB  - Belgrade, Serbia : Engineering Society for Corrosion
T2  - Zaštita materijala
T1  - Hydroxyapatite coatings on TiO2 nanotubes
T1  - Prevlake hidroksiapatita na nanotubama oksida titana
VL  - 51
IS  - 1
SP  - 24
EP  - 28
UR  - https://hdl.handle.net/21.15107/rcub_cer_749
ER  - 
@article{
author = "Eraković, Sanja and Panić, Vladimir and Jokić, Bojan and Stevanović, Sanja and Mišković-Stanković, Vesna",
year = "2010",
abstract = "The aim of this work was to obtain nanotubular TiO2 layer by anodization of titanium substrate, and to prepare hydroxyapatite (HAP) coatings by electrophoretic deposition over nanotubular TiO2 layer. The presence of fluoride ion in the electrolyte for anodization causes the formation of TiO2 nanotubes. The Ti surface modified with TiO2 nanotubes was used for fabrication of HAP coatings by electrophoretic deposition. Acidic medium provides formation of short nanotubes which are more suitable for deposition of HAP coatings. Ti plates were thermally treated after anodization in order to gain more defined structure of nanotubular TiO2 layer. Compact HAP coatings with good adhesion were produced by electrophoretic deposition on thermally treated and untreated anodized specimens. The results showed that coating mass increases with deposition time, but prolongation of the deposition time causes the decrease of HAP coating adhesion. ., Cilj ovog rada je dobijanje nanotubularnog TiO2 sloja na titanu postupkom anodizacije i ispitivanje parametara elektroforetskog taloženja prevlaka hidroksiapatita (HAP) na formiranom međusloju nanotubularnog TiO2. Pokazano je da anodizacija titana u elektrolitu koji sadrži fluoridne jone omogućava formiranje nanotuba TiO2 na površini titana. Površina titana modifikovana nanotubama TiO2 je korišćena kao podloga za kataforetsko taloženje prevlaka hidroksiapatita iz etanolske suspenzije. Kisela sredina za anodizaciju titana omogućava dobijanje kraćih nanotuba koje su se pokazale kao bolja podloga za nanošenje HAP prevlaka. Nakon anodizacije, titanske pločice su termički tretirane da bi se dobila definisanija struktura nanotubularnog TiO2 sloja. Kataforetskim taloženjem dobijene su dobro prianjajuće i kompaktne HAP prevlake na termički tretiranim i netretiranim anodiziranim uzorcima. Rezultati pokazuju da pri vremenima taloženja dužim od 45 min dolazi do smanjenja adhezije prevlake hidroksiapatita.",
publisher = "Belgrade, Serbia : Engineering Society for Corrosion",
journal = "Zaštita materijala",
title = "Hydroxyapatite coatings on TiO2 nanotubes, Prevlake hidroksiapatita na nanotubama oksida titana",
volume = "51",
number = "1",
pages = "24-28",
url = "https://hdl.handle.net/21.15107/rcub_cer_749"
}
Eraković, S., Panić, V., Jokić, B., Stevanović, S.,& Mišković-Stanković, V.. (2010). Hydroxyapatite coatings on TiO2 nanotubes. in Zaštita materijala
Belgrade, Serbia : Engineering Society for Corrosion., 51(1), 24-28.
https://hdl.handle.net/21.15107/rcub_cer_749
Eraković S, Panić V, Jokić B, Stevanović S, Mišković-Stanković V. Hydroxyapatite coatings on TiO2 nanotubes. in Zaštita materijala. 2010;51(1):24-28.
https://hdl.handle.net/21.15107/rcub_cer_749 .
Eraković, Sanja, Panić, Vladimir, Jokić, Bojan, Stevanović, Sanja, Mišković-Stanković, Vesna, "Hydroxyapatite coatings on TiO2 nanotubes" in Zaštita materijala, 51, no. 1 (2010):24-28,
https://hdl.handle.net/21.15107/rcub_cer_749 .

Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite

Jovanović, Željka; Panić, Vladimir; Krklješ, Aleksandra; Kačarević-Popović, Zorica; Nikolić, Branislav; Mišković-Stanković, Vesna

(Serbian Chemical Society, Belgrade, 2010)

TY  - CONF
AU  - Jovanović, Željka
AU  - Panić, Vladimir
AU  - Krklješ, Aleksandra
AU  - Kačarević-Popović, Zorica
AU  - Nikolić, Branislav
AU  - Mišković-Stanković, Vesna
PY  - 2010
UR  - http://www.aseee.eu/index.php/rsesee2-home
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3522
AB  - Hydrogel nanocomposites of silver nanoparticles (AgNPs) and crosslinked poly(N-vinyl-2-
pyrrolidone) (PVP) were synthesized in situ by a novel electrochemical method. PVP
hydrogels, crosslinked by gamma-irradiation, were swollen in the solution containing
0.1 M KNO3 and 3.9 mM AgNO3. PVP polymer matrix nanocavities were used as
nanoreactors for AgNPs synthesis. The reduction of silver cations was performed using
two-Pt-electrode electrochemical cell. The polarity of the electrodes was changed on the
half of the implementation time, enabling the Ag+ ions reduction in the bulk. Cyclic
voltammetry (CV) was performed in a three-electrode electrochemical cell, using the
saturated calomel electrode (SCE) as a reference. Ag/PVP nanocomposites were
scanned by CV immediately after the synthesis and after drying followed by reswelling in
0.1 M KNO3. Ag/PVP was compared with CVs of the following systems: Pt electrode in
0.1 M KNO3; Pt/PVP system in 0.1 M KNO3; Ag/Pt system in 0.1 M KNO3 + 3.9 mM
AgNO3 solution.
PB  - Serbian Chemical Society, Belgrade
C3  - Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
T1  - Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite
SP  - 26
EP  - 26
UR  - https://hdl.handle.net/21.15107/rcub_cer_3522
ER  - 
@conference{
author = "Jovanović, Željka and Panić, Vladimir and Krklješ, Aleksandra and Kačarević-Popović, Zorica and Nikolić, Branislav and Mišković-Stanković, Vesna",
year = "2010",
abstract = "Hydrogel nanocomposites of silver nanoparticles (AgNPs) and crosslinked poly(N-vinyl-2-
pyrrolidone) (PVP) were synthesized in situ by a novel electrochemical method. PVP
hydrogels, crosslinked by gamma-irradiation, were swollen in the solution containing
0.1 M KNO3 and 3.9 mM AgNO3. PVP polymer matrix nanocavities were used as
nanoreactors for AgNPs synthesis. The reduction of silver cations was performed using
two-Pt-electrode electrochemical cell. The polarity of the electrodes was changed on the
half of the implementation time, enabling the Ag+ ions reduction in the bulk. Cyclic
voltammetry (CV) was performed in a three-electrode electrochemical cell, using the
saturated calomel electrode (SCE) as a reference. Ag/PVP nanocomposites were
scanned by CV immediately after the synthesis and after drying followed by reswelling in
0.1 M KNO3. Ag/PVP was compared with CVs of the following systems: Pt electrode in
0.1 M KNO3; Pt/PVP system in 0.1 M KNO3; Ag/Pt system in 0.1 M KNO3 + 3.9 mM
AgNO3 solution.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts",
title = "Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite",
pages = "26-26",
url = "https://hdl.handle.net/21.15107/rcub_cer_3522"
}
Jovanović, Ž., Panić, V., Krklješ, A., Kačarević-Popović, Z., Nikolić, B.,& Mišković-Stanković, V.. (2010). Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
Serbian Chemical Society, Belgrade., 26-26.
https://hdl.handle.net/21.15107/rcub_cer_3522
Jovanović Ž, Panić V, Krklješ A, Kačarević-Popović Z, Nikolić B, Mišković-Stanković V. Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts. 2010;:26-26.
https://hdl.handle.net/21.15107/rcub_cer_3522 .
Jovanović, Željka, Panić, Vladimir, Krklješ, Aleksandra, Kačarević-Popović, Zorica, Nikolić, Branislav, Mišković-Stanković, Vesna, "Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite" in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts (2010):26-26,
https://hdl.handle.net/21.15107/rcub_cer_3522 .

Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite

Jovanović, Željka; Panić, Vladimir; Krklješ, Aleksandra; Kačarević-Popović, Zorica; Nikolić, Branislav; Mišković-Stanković, Vesna

(Serbian Chemical Society, Belgrade, 2010)

TY  - CONF
AU  - Jovanović, Željka
AU  - Panić, Vladimir
AU  - Krklješ, Aleksandra
AU  - Kačarević-Popović, Zorica
AU  - Nikolić, Branislav
AU  - Mišković-Stanković, Vesna
PY  - 2010
UR  - http://www.aseee.eu/index.php/rsesee2-home
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3523
AB  - Hydrogel nanocomposites of silver nanoparticles (AgNPs) and crosslinked poly(N-vinyl-2-pyrrolidone) (PVP) were synthesized in situ by a novel electrochemical method. PVPhydrogels, crosslinked by gamma-irradiation, were swollen in the solution containing0.1 M KNO3 and 3.9 mM AgNO3. PVP polymer matrix nanocavities were used asnanoreactors for AgNPs synthesis. The reduction of silver cations was performed usingtwo-Pt-electrode electrochemical cell. The polarity of the electrodes was changed on thehalf of the implementation time, enabling the Ag+ ions reduction in the bulk. Cyclicvoltammetry (CV) was performed in a three-electrode electrochemical cell, using thesaturated calomel electrode (SCE) as a reference. Ag/PVP nanocomposites werescanned by CV immediately after the synthesis and after drying followed by reswelling in0.1 M KNO3. Ag/PVP was compared with CVs of the following systems: Pt electrode in0.1 M KNO3; Pt/PVP system in 0.1 M KNO3; Ag/Pt system in 0.1 M KNO3 + 3.9 mMAgNO3 solution.
PB  - Serbian Chemical Society, Belgrade
C3  - Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings
T1  - Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite
SP  - 29
EP  - 32
UR  - https://hdl.handle.net/21.15107/rcub_cer_3523
ER  - 
@conference{
author = "Jovanović, Željka and Panić, Vladimir and Krklješ, Aleksandra and Kačarević-Popović, Zorica and Nikolić, Branislav and Mišković-Stanković, Vesna",
year = "2010",
abstract = "Hydrogel nanocomposites of silver nanoparticles (AgNPs) and crosslinked poly(N-vinyl-2-pyrrolidone) (PVP) were synthesized in situ by a novel electrochemical method. PVPhydrogels, crosslinked by gamma-irradiation, were swollen in the solution containing0.1 M KNO3 and 3.9 mM AgNO3. PVP polymer matrix nanocavities were used asnanoreactors for AgNPs synthesis. The reduction of silver cations was performed usingtwo-Pt-electrode electrochemical cell. The polarity of the electrodes was changed on thehalf of the implementation time, enabling the Ag+ ions reduction in the bulk. Cyclicvoltammetry (CV) was performed in a three-electrode electrochemical cell, using thesaturated calomel electrode (SCE) as a reference. Ag/PVP nanocomposites werescanned by CV immediately after the synthesis and after drying followed by reswelling in0.1 M KNO3. Ag/PVP was compared with CVs of the following systems: Pt electrode in0.1 M KNO3; Pt/PVP system in 0.1 M KNO3; Ag/Pt system in 0.1 M KNO3 + 3.9 mMAgNO3 solution.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings",
title = "Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite",
pages = "29-32",
url = "https://hdl.handle.net/21.15107/rcub_cer_3523"
}
Jovanović, Ž., Panić, V., Krklješ, A., Kačarević-Popović, Z., Nikolić, B.,& Mišković-Stanković, V.. (2010). Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings
Serbian Chemical Society, Belgrade., 29-32.
https://hdl.handle.net/21.15107/rcub_cer_3523
Jovanović Ž, Panić V, Krklješ A, Kačarević-Popović Z, Nikolić B, Mišković-Stanković V. Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings. 2010;:29-32.
https://hdl.handle.net/21.15107/rcub_cer_3523 .
Jovanović, Željka, Panić, Vladimir, Krklješ, Aleksandra, Kačarević-Popović, Zorica, Nikolić, Branislav, Mišković-Stanković, Vesna, "Cyclic voltammetry study of electrochemically synthesized Ag/PVP nanocomposite" in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Proceedings (2010):29-32,
https://hdl.handle.net/21.15107/rcub_cer_3523 .

Photovoltaics of sol-gel processed titanium oxide coating

Panić, Vladimir; Mišković-Stanković, Vesna; Jovanović, Branislav; Milonić, Slobodan; Nikolić, Branislav

(Serbian Chemical Society, Belgrade, 2010)

TY  - CONF
AU  - Panić, Vladimir
AU  - Mišković-Stanković, Vesna
AU  - Jovanović, Branislav
AU  - Milonić, Slobodan
AU  - Nikolić, Branislav
PY  - 2010
UR  - http://www.aseee.eu/index.php/rsesee2-home
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3526
AB  - Titanium oxide is applied as a photocatalyst in organic synthesis and for waste water treatment and outdoor air purification. In this work, photoelectrochemical (PEC) activity of titanium oxide coating on titanium substrate, prepared by the sol–gel procedure from the oxide sol obtained by forced hydrolysis of chloride was investigated. Electrochemical and PEC parameters at photoelectrode change intensively upon UV illumination when organic compounds (alcohols, aldehydes, acids, etc.) are present in the electrolyte (H2SO4), which proves coating activity for their oxidation. Electrochemical impedance (EIS) characteristics of the coating are found to be sensitive to the photoelectrode potential and UV light. EIS characteristics are discussed on the basis of the values of parameters of equivalent electrical circuit used to fit experimental impedance data.
PB  - Serbian Chemical Society, Belgrade
C3  - Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
T1  - Photovoltaics of sol-gel processed titanium oxide coating
SP  - 88
EP  - 88
UR  - https://hdl.handle.net/21.15107/rcub_cer_3526
ER  - 
@conference{
author = "Panić, Vladimir and Mišković-Stanković, Vesna and Jovanović, Branislav and Milonić, Slobodan and Nikolić, Branislav",
year = "2010",
abstract = "Titanium oxide is applied as a photocatalyst in organic synthesis and for waste water treatment and outdoor air purification. In this work, photoelectrochemical (PEC) activity of titanium oxide coating on titanium substrate, prepared by the sol–gel procedure from the oxide sol obtained by forced hydrolysis of chloride was investigated. Electrochemical and PEC parameters at photoelectrode change intensively upon UV illumination when organic compounds (alcohols, aldehydes, acids, etc.) are present in the electrolyte (H2SO4), which proves coating activity for their oxidation. Electrochemical impedance (EIS) characteristics of the coating are found to be sensitive to the photoelectrode potential and UV light. EIS characteristics are discussed on the basis of the values of parameters of equivalent electrical circuit used to fit experimental impedance data.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts",
title = "Photovoltaics of sol-gel processed titanium oxide coating",
pages = "88-88",
url = "https://hdl.handle.net/21.15107/rcub_cer_3526"
}
Panić, V., Mišković-Stanković, V., Jovanović, B., Milonić, S.,& Nikolić, B.. (2010). Photovoltaics of sol-gel processed titanium oxide coating. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
Serbian Chemical Society, Belgrade., 88-88.
https://hdl.handle.net/21.15107/rcub_cer_3526
Panić V, Mišković-Stanković V, Jovanović B, Milonić S, Nikolić B. Photovoltaics of sol-gel processed titanium oxide coating. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts. 2010;:88-88.
https://hdl.handle.net/21.15107/rcub_cer_3526 .
Panić, Vladimir, Mišković-Stanković, Vesna, Jovanović, Branislav, Milonić, Slobodan, Nikolić, Branislav, "Photovoltaics of sol-gel processed titanium oxide coating" in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts (2010):88-88,
https://hdl.handle.net/21.15107/rcub_cer_3526 .

The electrochemical synthesis of different Ag/PVP nanocomposites

Jovanović, Željka; Panić, Vladimir; Nikolić, Branislav; Mišković-Stanković, Vesna

(Serbian Chemical Society, Belgrade, 2010)

TY  - CONF
AU  - Jovanović, Željka
AU  - Panić, Vladimir
AU  - Nikolić, Branislav
AU  - Mišković-Stanković, Vesna
PY  - 2010
UR  - http://www.aseee.eu/index.php/rsesee2-home
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3531
AB  - The potential use of Ag/poly(N-vinyl-2-pyrrolidone) (PVP) nanocomposites is in wound dressings or soft tissue implants, where Ag nanoparticles (AgNPs) serve as the antimicrobial agent. Ag/PVP nanocomposites were electrochemically synthesized, by the electrochemical reduction of Ag+ ions into the AgNPs in the PVP aqueous solution and within the crosslinked PVP matrix, forming the non-crosslinked and crosslinked Ag/PVP nanocomposite, respectively. The synthesis of AgNPs was performed in an electrochemical cell with Pt working and counter electrodes and the saturated calomel electrode (SCE) as the reference. The non-crosslinked Ag/PVP nanocomposite was obtained by galvanostatic reduction of Ag+ ions from the aqueous solution consisted of 0.10 M KNO3, 3.9 mM AgNO3 and 10 wt. % PVP. The crosslinked Ag/PVP nanocomposite was obtained by in situ potentiostatic reduction of Ag+ ions within PVP hydrogel, previously prepared by -irradiation of the 10 wt. % PVP aqueous solution. Hydrogels were swollen in two different aqueous solutions ((a) 3.9 mM AgNO3, (b) 3.9 mM AgNO3 + 0.10 M KNO3) for 24 h. Ag/PVP nanocomposite systems were characterized by UV-Vis spectroscopy, FTIR, TEM, XRD, Z-sizer analysis and cyclic voltammetry.
PB  - Serbian Chemical Society, Belgrade
C3  - Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
T1  - The electrochemical synthesis of different Ag/PVP nanocomposites
SP  - 155
EP  - 155
UR  - https://hdl.handle.net/21.15107/rcub_cer_3531
ER  - 
@conference{
author = "Jovanović, Željka and Panić, Vladimir and Nikolić, Branislav and Mišković-Stanković, Vesna",
year = "2010",
abstract = "The potential use of Ag/poly(N-vinyl-2-pyrrolidone) (PVP) nanocomposites is in wound dressings or soft tissue implants, where Ag nanoparticles (AgNPs) serve as the antimicrobial agent. Ag/PVP nanocomposites were electrochemically synthesized, by the electrochemical reduction of Ag+ ions into the AgNPs in the PVP aqueous solution and within the crosslinked PVP matrix, forming the non-crosslinked and crosslinked Ag/PVP nanocomposite, respectively. The synthesis of AgNPs was performed in an electrochemical cell with Pt working and counter electrodes and the saturated calomel electrode (SCE) as the reference. The non-crosslinked Ag/PVP nanocomposite was obtained by galvanostatic reduction of Ag+ ions from the aqueous solution consisted of 0.10 M KNO3, 3.9 mM AgNO3 and 10 wt. % PVP. The crosslinked Ag/PVP nanocomposite was obtained by in situ potentiostatic reduction of Ag+ ions within PVP hydrogel, previously prepared by -irradiation of the 10 wt. % PVP aqueous solution. Hydrogels were swollen in two different aqueous solutions ((a) 3.9 mM AgNO3, (b) 3.9 mM AgNO3 + 0.10 M KNO3) for 24 h. Ag/PVP nanocomposite systems were characterized by UV-Vis spectroscopy, FTIR, TEM, XRD, Z-sizer analysis and cyclic voltammetry.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts",
title = "The electrochemical synthesis of different Ag/PVP nanocomposites",
pages = "155-155",
url = "https://hdl.handle.net/21.15107/rcub_cer_3531"
}
Jovanović, Ž., Panić, V., Nikolić, B.,& Mišković-Stanković, V.. (2010). The electrochemical synthesis of different Ag/PVP nanocomposites. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
Serbian Chemical Society, Belgrade., 155-155.
https://hdl.handle.net/21.15107/rcub_cer_3531
Jovanović Ž, Panić V, Nikolić B, Mišković-Stanković V. The electrochemical synthesis of different Ag/PVP nanocomposites. in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts. 2010;:155-155.
https://hdl.handle.net/21.15107/rcub_cer_3531 .
Jovanović, Željka, Panić, Vladimir, Nikolić, Branislav, Mišković-Stanković, Vesna, "The electrochemical synthesis of different Ag/PVP nanocomposites" in Second Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts (2010):155-155,
https://hdl.handle.net/21.15107/rcub_cer_3531 .