TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Vukićević, Nataša
AU  - Feldhaus, Dominic
AU  - Barudžija, Tanja
AU  - Stevanović, Jasmina
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan J.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9073
AB  - Electrochemical reduction processes of Nd(III) on tungsten and molybdenum electrodes in NdF3+LiF and NdF3+LiF+Nd2O3 were investigated by cyclic voltammetry, chronoamperometry and open circuit measurements. Electrolytes and electrodes were examined after neodymium electrodeposition by optical microscopy and XRD. It was found that tungsten and molybdenum working electrodes behave identically during neodymium complexed ion reduction processes. Their reversible potentials in the electrolytes used differed only by 10 mV, and so did the potentials of the neodymium ion reduction processes. The recorded results indicated that the Nd(III) ions in the melts were reduced in two steps: Nd(III) → Nd(II) and Nd(II) → Nd(0). These consecutive processes are predominantly mass transfer controlled. Electrolytically obtained metal appeared to accumulate on the cathode and no metal neodymium was recorded in the solidified electrolyte placed close to the cathode after completed electrodeposition process. However, it was found that NdF2 formed by the disproportionation reaction between Nd(III) and that deposited Nd(0) coexists with other complex components in the electrolytes used.
T2  - International Journal of Electrochemical Science
T1  - Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte
VL  - 15
IS  - 7
SP  - 7039
EP  - 7052
DO  - 10.20964/2020.07.82
ER  - 

@article{
author = "Cvetković, Vesna S. and Vukićević, Nataša and Feldhaus, Dominic and Barudžija, Tanja and Stevanović, Jasmina and Friedrich, Bernd and Jovićević, Jovan J.",
year = "2020",
abstract = "Electrochemical reduction processes of Nd(III) on tungsten and molybdenum electrodes in NdF3+LiF and NdF3+LiF+Nd2O3 were investigated by cyclic voltammetry, chronoamperometry and open circuit measurements. Electrolytes and electrodes were examined after neodymium electrodeposition by optical microscopy and XRD. It was found that tungsten and molybdenum working electrodes behave identically during neodymium complexed ion reduction processes. Their reversible potentials in the electrolytes used differed only by 10 mV, and so did the potentials of the neodymium ion reduction processes. The recorded results indicated that the Nd(III) ions in the melts were reduced in two steps: Nd(III) → Nd(II) and Nd(II) → Nd(0). These consecutive processes are predominantly mass transfer controlled. Electrolytically obtained metal appeared to accumulate on the cathode and no metal neodymium was recorded in the solidified electrolyte placed close to the cathode after completed electrodeposition process. However, it was found that NdF2 formed by the disproportionation reaction between Nd(III) and that deposited Nd(0) coexists with other complex components in the electrolytes used.",
journal = "International Journal of Electrochemical Science",
title = "Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte",
volume = "15",
number = "7",
pages = "7039-7052",
doi = "10.20964/2020.07.82"
}

Cvetković, V. S., Vukićević, N., Feldhaus, D., Barudžija, T., Stevanović, J., Friedrich, B.,& Jovićević, J. J.. (2020). Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte. in International Journal of Electrochemical Science, 15(7), 7039-7052.
https://doi.org/10.20964/2020.07.82

Cvetković VS, Vukićević N, Feldhaus D, Barudžija T, Stevanović J, Friedrich B, Jovićević JJ. Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte. in International Journal of Electrochemical Science. 2020;15(7):7039-7052.
doi:10.20964/2020.07.82 .

Cvetković, Vesna S., Vukićević, Nataša, Feldhaus, Dominic, Barudžija, Tanja, Stevanović, Jasmina, Friedrich, Bernd, Jovićević, Jovan J., "Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte" in International Journal of Electrochemical Science, 15, no. 7 (2020):7039-7052,
https://doi.org/10.20964/2020.07.82 . .

TY  - JOUR
AU  - Pantović Pavlović, Marijana R.
AU  - Pavlović, Miroslav M.
AU  - Eraković, Sanja
AU  - Barudžija, Tanja
AU  - Stevanović, Jasmina S.
AU  - Ignjatović, Nenad L.
AU  - Panić, Vladimir V.
PY  - 2019
UR  - https://www.shd-pub.org.rs/index.php/JSCS/article/view/8524
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8671
AB  - The optimization of the anodization process of Ti substrate for in situ synthesis of hydroxyapatite/titanium oxide composite coatings on titanium substrate was accomplished. The anodization was performed under 30, 60 and 90 V cell voltage, and the morphology of treated surface, as well as linear and surface roughness, were analysed by field emission-scanning electron micro­scopy, atomic force microscopy and roughness tester. It was shown by linear and surface roughness analyses that titanium anodized under 60 V has the high­est roughness, whereas at 90 V the flattening of the surface occurs. As the highest surface roughness results emerged at 60 V, the novel process of com­po­site anHAp/TiO2 coating synthesis, which comprises simultaneous processes of TiO2 formation and HAp deposition, as well as HAp impregnation within TiO2 surface layer, was performed at this voltage. Ti substrate surface was completely covered by composite coating, with no visible cracks. The adhesion quantified according to ASTM D3359-02 standard is considerably improved with respect to the coatings obtained by cathaphoretic processes, with no need of subsequent sintering.
T2  - Journal of the Serbian Chemical Society
T1  - Relationship between the properties of an interlayer formed by in situ Ti anodization and anaphoretically deposited hydroxyapatite
VL  - 84
IS  - 11
SP  - 1305
EP  - 1318
DO  - 10.2298/JSC190730105P
ER  - 

@article{
author = "Pantović Pavlović, Marijana R. and Pavlović, Miroslav M. and Eraković, Sanja and Barudžija, Tanja and Stevanović, Jasmina S. and Ignjatović, Nenad L. and Panić, Vladimir V.",
year = "2019",
abstract = "The optimization of the anodization process of Ti substrate for in situ synthesis of hydroxyapatite/titanium oxide composite coatings on titanium substrate was accomplished. The anodization was performed under 30, 60 and 90 V cell voltage, and the morphology of treated surface, as well as linear and surface roughness, were analysed by field emission-scanning electron micro­scopy, atomic force microscopy and roughness tester. It was shown by linear and surface roughness analyses that titanium anodized under 60 V has the high­est roughness, whereas at 90 V the flattening of the surface occurs. As the highest surface roughness results emerged at 60 V, the novel process of com­po­site anHAp/TiO2 coating synthesis, which comprises simultaneous processes of TiO2 formation and HAp deposition, as well as HAp impregnation within TiO2 surface layer, was performed at this voltage. Ti substrate surface was completely covered by composite coating, with no visible cracks. The adhesion quantified according to ASTM D3359-02 standard is considerably improved with respect to the coatings obtained by cathaphoretic processes, with no need of subsequent sintering.",
journal = "Journal of the Serbian Chemical Society",
title = "Relationship between the properties of an interlayer formed by in situ Ti anodization and anaphoretically deposited hydroxyapatite",
volume = "84",
number = "11",
pages = "1305-1318",
doi = "10.2298/JSC190730105P"
}

Pantović Pavlović, M. R., Pavlović, M. M., Eraković, S., Barudžija, T., Stevanović, J. S., Ignjatović, N. L.,& Panić, V. V.. (2019). Relationship between the properties of an interlayer formed by in situ Ti anodization and anaphoretically deposited hydroxyapatite. in Journal of the Serbian Chemical Society, 84(11), 1305-1318.
https://doi.org/10.2298/JSC190730105P

Pantović Pavlović MR, Pavlović MM, Eraković S, Barudžija T, Stevanović JS, Ignjatović NL, Panić VV. Relationship between the properties of an interlayer formed by in situ Ti anodization and anaphoretically deposited hydroxyapatite. in Journal of the Serbian Chemical Society. 2019;84(11):1305-1318.
doi:10.2298/JSC190730105P .

Pantović Pavlović, Marijana R., Pavlović, Miroslav M., Eraković, Sanja, Barudžija, Tanja, Stevanović, Jasmina S., Ignjatović, Nenad L., Panić, Vladimir V., "Relationship between the properties of an interlayer formed by in situ Ti anodization and anaphoretically deposited hydroxyapatite" in Journal of the Serbian Chemical Society, 84, no. 11 (2019):1305-1318,
https://doi.org/10.2298/JSC190730105P . .

TY  - JOUR
AU  - Eraković, Sanja
AU  - Pavlović, Miroslav M.
AU  - Stopić, Srećko
AU  - Stevanović, Jasmina
AU  - Mitrić, Miodrag
AU  - Friedrich, Bernd
AU  - Panić, Vladimir
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8470
AB  - Considerable promotion of RuO2 hosted by perovskite-like structure of rare earth–CoO3 composite and vice versa supercapacitive performances is reported. Spherical, sub-μm-sized, regular spheres of La0.6Sr0.4CoO3 (LSCO), were synthesized by ultrasonic spray pyrolysis. The sphere surface was subsequently hydrothermally doped by RuO2. LSCO and LSCO/RuO2 composites were investigated for their supercapacitive performances in alkaline solution. Microstructure and surface morphology were studied by SEM and XRD. It was found that amorphous Ru species decorate LSCO surface, and possibly incorporate partially into B-site of the LSCO lattice. Electrochemical characterization by cyclic voltammetry (CV), galvanostatic charge-discharge (G-C/DC) and electrochemical impedance spectroscopy (EIS) clearly revealed that capacitive performances of LSCO are considerably improved by addition of 20 mass. % of RuO2. The registered capacitance for LSCO/RuO2 reaches the values of pure RuO2, which reveals the promoting influence of LSCO on RuO2 pseudocapacitance. The EIS analysis showed that RuO2 catalyzes the redox transition of Co species, with simultaneous proportional increase in pseudocapacitive RuO2 abilities while being hosted by LSCO. This intrinsic interactive promotion introduces LSCO/RuO2 composite as unique supercapacitive material. G-C/DC curves showed that LSCO/RuO2 is of modest cyclability with respect to pure LSCO and RuO2, although the capacitance losses with cycling are acceptably low. © 2019 Elsevier Ltd
T2  - Electrochimica Acta
T1  - Interactive promotion of supercapacitance of rare earth/CoO3-based spray pyrolytic perovskite microspheres hosting the hydrothermal ruthenium oxide
VL  - 321
SP  - 134721
DO  - 10.1016/j.electacta.2019.134721
ER  - 

@article{
author = "Eraković, Sanja and Pavlović, Miroslav M. and Stopić, Srećko and Stevanović, Jasmina and Mitrić, Miodrag and Friedrich, Bernd and Panić, Vladimir",
year = "2019",
abstract = "Considerable promotion of RuO2 hosted by perovskite-like structure of rare earth–CoO3 composite and vice versa supercapacitive performances is reported. Spherical, sub-μm-sized, regular spheres of La0.6Sr0.4CoO3 (LSCO), were synthesized by ultrasonic spray pyrolysis. The sphere surface was subsequently hydrothermally doped by RuO2. LSCO and LSCO/RuO2 composites were investigated for their supercapacitive performances in alkaline solution. Microstructure and surface morphology were studied by SEM and XRD. It was found that amorphous Ru species decorate LSCO surface, and possibly incorporate partially into B-site of the LSCO lattice. Electrochemical characterization by cyclic voltammetry (CV), galvanostatic charge-discharge (G-C/DC) and electrochemical impedance spectroscopy (EIS) clearly revealed that capacitive performances of LSCO are considerably improved by addition of 20 mass. % of RuO2. The registered capacitance for LSCO/RuO2 reaches the values of pure RuO2, which reveals the promoting influence of LSCO on RuO2 pseudocapacitance. The EIS analysis showed that RuO2 catalyzes the redox transition of Co species, with simultaneous proportional increase in pseudocapacitive RuO2 abilities while being hosted by LSCO. This intrinsic interactive promotion introduces LSCO/RuO2 composite as unique supercapacitive material. G-C/DC curves showed that LSCO/RuO2 is of modest cyclability with respect to pure LSCO and RuO2, although the capacitance losses with cycling are acceptably low. © 2019 Elsevier Ltd",
journal = "Electrochimica Acta",
title = "Interactive promotion of supercapacitance of rare earth/CoO3-based spray pyrolytic perovskite microspheres hosting the hydrothermal ruthenium oxide",
volume = "321",
pages = "134721",
doi = "10.1016/j.electacta.2019.134721"
}

Eraković, S., Pavlović, M. M., Stopić, S., Stevanović, J., Mitrić, M., Friedrich, B.,& Panić, V.. (2019). Interactive promotion of supercapacitance of rare earth/CoO3-based spray pyrolytic perovskite microspheres hosting the hydrothermal ruthenium oxide. in Electrochimica Acta, 321, 134721.
https://doi.org/10.1016/j.electacta.2019.134721

Eraković S, Pavlović MM, Stopić S, Stevanović J, Mitrić M, Friedrich B, Panić V. Interactive promotion of supercapacitance of rare earth/CoO3-based spray pyrolytic perovskite microspheres hosting the hydrothermal ruthenium oxide. in Electrochimica Acta. 2019;321:134721.
doi:10.1016/j.electacta.2019.134721 .

Eraković, Sanja, Pavlović, Miroslav M., Stopić, Srećko, Stevanović, Jasmina, Mitrić, Miodrag, Friedrich, Bernd, Panić, Vladimir, "Interactive promotion of supercapacitance of rare earth/CoO3-based spray pyrolytic perovskite microspheres hosting the hydrothermal ruthenium oxide" in Electrochimica Acta, 321 (2019):134721,
https://doi.org/10.1016/j.electacta.2019.134721 . .