TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Jović, Vladimir D.
AU  - Nikolić, Nebojša D.
AU  - Barudžija, Tanja
AU  - Dimitrijević, Silvana
AU  - Jovićević, Jovan N.
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12936
AB  - Electrodeposition of copper from deep eutectic solvents (DES) based on a mixture of choline chloride and ethylene glycol containing CuCl2·2H2O at 50 °C and 80 °C was studied. Electrochemical reduction/oxidation of Cu(II)/Cu(0) on glassy carbon (GC) and palladium (Pd) electrodes was investigated by cyclic voltammetry (CV) and square wave voltammetry (SWV) emphasizing that this process takes place through two steps, Cu(II) ↔ Cu(I) and Cu(I) ↔ Cu(0). The CV results showed that in chloride-rich DES electrolytes, the increased presence of chloro ligands raises the overpotential required for Cu electrodeposition. The electrochemical impedance spectroscopy (EIS) results indicate simultaneous electrodeposition of Cu and electrosorption of large cations on electrodeposited Cu on both GC and Pd substrates. Scanning electron microscopy (SEM) results showed that Cu grains of approximately 1 μm were obtained by electrodeposition of Cu on both Pd and GC, whereby better coverage by electrodeposited Cu was obtained on Pd than on GC. Cu electrodeposited on Pd was relatively uniform and smooth, but porous, while Cu electrodeposited on GC was dispersed in small agglomerates. Energy-dispersive X-ray spectroscopy (EDS) of Cu electrodeposited on Pd detected the dominant presence of Cu with the possibility of the formation of CuPd alloy. The presence of CuPd alloy face-centred cubic structures is confirmed by X-ray diffraction (XRD) along with metallic Cu.
T2  - Journal of Electroanalytical Chemistry
T1  - Electrodeposition of copper on glassy carbon and palladium from choline chloride - ethylene glycol deep eutectic solvent
VL  - 958
SP  - 118161
DO  - 10.1016/j.jelechem.2024.118161
ER  - 

@article{
author = "Cvetković, Vesna S. and Jović, Vladimir D. and Nikolić, Nebojša D. and Barudžija, Tanja and Dimitrijević, Silvana and Jovićević, Jovan N.",
year = "2024",
abstract = "Electrodeposition of copper from deep eutectic solvents (DES) based on a mixture of choline chloride and ethylene glycol containing CuCl2·2H2O at 50 °C and 80 °C was studied. Electrochemical reduction/oxidation of Cu(II)/Cu(0) on glassy carbon (GC) and palladium (Pd) electrodes was investigated by cyclic voltammetry (CV) and square wave voltammetry (SWV) emphasizing that this process takes place through two steps, Cu(II) ↔ Cu(I) and Cu(I) ↔ Cu(0). The CV results showed that in chloride-rich DES electrolytes, the increased presence of chloro ligands raises the overpotential required for Cu electrodeposition. The electrochemical impedance spectroscopy (EIS) results indicate simultaneous electrodeposition of Cu and electrosorption of large cations on electrodeposited Cu on both GC and Pd substrates. Scanning electron microscopy (SEM) results showed that Cu grains of approximately 1 μm were obtained by electrodeposition of Cu on both Pd and GC, whereby better coverage by electrodeposited Cu was obtained on Pd than on GC. Cu electrodeposited on Pd was relatively uniform and smooth, but porous, while Cu electrodeposited on GC was dispersed in small agglomerates. Energy-dispersive X-ray spectroscopy (EDS) of Cu electrodeposited on Pd detected the dominant presence of Cu with the possibility of the formation of CuPd alloy. The presence of CuPd alloy face-centred cubic structures is confirmed by X-ray diffraction (XRD) along with metallic Cu.",
journal = "Journal of Electroanalytical Chemistry",
title = "Electrodeposition of copper on glassy carbon and palladium from choline chloride - ethylene glycol deep eutectic solvent",
volume = "958",
pages = "118161",
doi = "10.1016/j.jelechem.2024.118161"
}

Cvetković, V. S., Jović, V. D., Nikolić, N. D., Barudžija, T., Dimitrijević, S.,& Jovićević, J. N.. (2024). Electrodeposition of copper on glassy carbon and palladium from choline chloride - ethylene glycol deep eutectic solvent. in Journal of Electroanalytical Chemistry, 958, 118161.
https://doi.org/10.1016/j.jelechem.2024.118161

Cvetković VS, Jović VD, Nikolić ND, Barudžija T, Dimitrijević S, Jovićević JN. Electrodeposition of copper on glassy carbon and palladium from choline chloride - ethylene glycol deep eutectic solvent. in Journal of Electroanalytical Chemistry. 2024;958:118161.
doi:10.1016/j.jelechem.2024.118161 .

Cvetković, Vesna S., Jović, Vladimir D., Nikolić, Nebojša D., Barudžija, Tanja, Dimitrijević, Silvana, Jovićević, Jovan N., "Electrodeposition of copper on glassy carbon and palladium from choline chloride - ethylene glycol deep eutectic solvent" in Journal of Electroanalytical Chemistry, 958 (2024):118161,
https://doi.org/10.1016/j.jelechem.2024.118161 . .

TY  - CONF
AU  - Matović, Branko
AU  - Maletaškić, Jelena
AU  - Maksimović, Vesna
AU  - Dimitrijević, Silvana
AU  - Todorović, Branislav
AU  - Zagorac, Jelena
AU  - Zeng, Yu-Ping
AU  - Cvijović-Alagić, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11346
AB  - The goal of this research was to obtain a chemically complex multicomponent
oxide with the A2B2O7 pyrochlore structure with nominal composition
(La1/7Sm1/7Nd1/7Pr1/7Y1/7Gd1/7Yb1/7)2(Sn1/3Hf1/3Zr1/3)2O7 that contains 10 different
cations in equiatomic amounts which was obtained by reacting metal nitrates (site
A) and metal chlorides (site B) with glycine during the combustion reaction. The
powder synthesized initially was found to be amorphous based on XRD analysis. To
convert the powder into a crystalline pyrochlore structure, the powder underwent
post-calcination at various temperatures ranging from 600–1500 °C. It was
discovered that the desired monophase pyrochlore structure (A2B2O7) was obtained
after calcination at 900 °C. To create a high-density ceramic pellet, the powder
calcined at 900 °C was subjected to pressureless sintering at 1650 °C for four hours
in the presence of air. The resulting pellet had a density of 97% of the theoretical
density and was free from any additives. This process likely caused the powder
particles to fuse together, creating a solid, dense pellet.
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - 7CSCS-2023 : 7th Conference of The Serbian Society for Ceramic Materials : Book of abstracts
T1  - Characterization of High-Entropy A2B2O7 Pyrochlore Obtained via Combustion Synthesis and Post-Calcination
SP  - 84
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11346
ER  - 

@conference{
author = "Matović, Branko and Maletaškić, Jelena and Maksimović, Vesna and Dimitrijević, Silvana and Todorović, Branislav and Zagorac, Jelena and Zeng, Yu-Ping and Cvijović-Alagić, Ivana",
year = "2023",
abstract = "The goal of this research was to obtain a chemically complex multicomponent
oxide with the A2B2O7 pyrochlore structure with nominal composition
(La1/7Sm1/7Nd1/7Pr1/7Y1/7Gd1/7Yb1/7)2(Sn1/3Hf1/3Zr1/3)2O7 that contains 10 different
cations in equiatomic amounts which was obtained by reacting metal nitrates (site
A) and metal chlorides (site B) with glycine during the combustion reaction. The
powder synthesized initially was found to be amorphous based on XRD analysis. To
convert the powder into a crystalline pyrochlore structure, the powder underwent
post-calcination at various temperatures ranging from 600–1500 °C. It was
discovered that the desired monophase pyrochlore structure (A2B2O7) was obtained
after calcination at 900 °C. To create a high-density ceramic pellet, the powder
calcined at 900 °C was subjected to pressureless sintering at 1650 °C for four hours
in the presence of air. The resulting pellet had a density of 97% of the theoretical
density and was free from any additives. This process likely caused the powder
particles to fuse together, creating a solid, dense pellet.",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "7CSCS-2023 : 7th Conference of The Serbian Society for Ceramic Materials : Book of abstracts",
title = "Characterization of High-Entropy A2B2O7 Pyrochlore Obtained via Combustion Synthesis and Post-Calcination",
pages = "84",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11346"
}

Matović, B., Maletaškić, J., Maksimović, V., Dimitrijević, S., Todorović, B., Zagorac, J., Zeng, Y.,& Cvijović-Alagić, I.. (2023). Characterization of High-Entropy A2B2O7 Pyrochlore Obtained via Combustion Synthesis and Post-Calcination. in 7CSCS-2023 : 7th Conference of The Serbian Society for Ceramic Materials : Book of abstracts
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 84.
https://hdl.handle.net/21.15107/rcub_vinar_11346

Matović B, Maletaškić J, Maksimović V, Dimitrijević S, Todorović B, Zagorac J, Zeng Y, Cvijović-Alagić I. Characterization of High-Entropy A2B2O7 Pyrochlore Obtained via Combustion Synthesis and Post-Calcination. in 7CSCS-2023 : 7th Conference of The Serbian Society for Ceramic Materials : Book of abstracts. 2023;:84.
https://hdl.handle.net/21.15107/rcub_vinar_11346 .

Matović, Branko, Maletaškić, Jelena, Maksimović, Vesna, Dimitrijević, Silvana, Todorović, Branislav, Zagorac, Jelena, Zeng, Yu-Ping, Cvijović-Alagić, Ivana, "Characterization of High-Entropy A2B2O7 Pyrochlore Obtained via Combustion Synthesis and Post-Calcination" in 7CSCS-2023 : 7th Conference of The Serbian Society for Ceramic Materials : Book of abstracts (2023):84,
https://hdl.handle.net/21.15107/rcub_vinar_11346 .

TY  - JOUR
AU  - Matović, Branko
AU  - Maletaškić, Jelena
AU  - Maksimović, Vesna
AU  - Dimitrijević, Silvana
AU  - Todorović, Bratislav
AU  - Zagorac, Jelena
AU  - Luković, Aleksa
AU  - Zeng, Yu-Ping
AU  - Cvijović-Alagić, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11350
AB  - Single nano high-entropy pyrochlore-type compound (A2B2O7) with 7 different
rare-earth cations at site A and 3 different metal cations at site B with equiatomic
amounts (7A1/7)2(3B1/3)2O7 is successfully obtained. The powder with nominal
composition (La1/7Sm1/7Nd1/7Pr1/7Y1/7Gd1/7Yb1/7)2(Sn1/3Hf1/3Zr1/3)2O7 was fabricated by
reacting metal nitrates (site A) and metal chlorides (site B) with glycine during the
combustion reaction. The XRD analysis revealed that the powder attained during
synthesis is in an amorphous state. To induce crystallization of the obtained pyrochlore structure, the post-calcination process at 600-1500 °C was conducted and studied.
Results of this study showed that the monophase pyrochlore (A2B2O7) structure is
obtained during the calcination at 900 °C. The high-density ceramic pellet with 97% of
theoretical density and free of any additives was obtained through pressureless sintering
at 1650 °C for 4 h in the air using the powder calcined at 900 °C.
T2  - Science of Sintering
T1  - Synthesis and characterization of high-entropy A2B2O7 pyrochlore with multiple elements at A and B sites
IS  - InPress
SP  - 23
DO  - 10.2298/SOS220802023M
ER  - 

@article{
author = "Matović, Branko and Maletaškić, Jelena and Maksimović, Vesna and Dimitrijević, Silvana and Todorović, Bratislav and Zagorac, Jelena and Luković, Aleksa and Zeng, Yu-Ping and Cvijović-Alagić, Ivana",
year = "2023",
abstract = "Single nano high-entropy pyrochlore-type compound (A2B2O7) with 7 different
rare-earth cations at site A and 3 different metal cations at site B with equiatomic
amounts (7A1/7)2(3B1/3)2O7 is successfully obtained. The powder with nominal
composition (La1/7Sm1/7Nd1/7Pr1/7Y1/7Gd1/7Yb1/7)2(Sn1/3Hf1/3Zr1/3)2O7 was fabricated by
reacting metal nitrates (site A) and metal chlorides (site B) with glycine during the
combustion reaction. The XRD analysis revealed that the powder attained during
synthesis is in an amorphous state. To induce crystallization of the obtained pyrochlore structure, the post-calcination process at 600-1500 °C was conducted and studied.
Results of this study showed that the monophase pyrochlore (A2B2O7) structure is
obtained during the calcination at 900 °C. The high-density ceramic pellet with 97% of
theoretical density and free of any additives was obtained through pressureless sintering
at 1650 °C for 4 h in the air using the powder calcined at 900 °C.",
journal = "Science of Sintering",
title = "Synthesis and characterization of high-entropy A2B2O7 pyrochlore with multiple elements at A and B sites",
number = "InPress",
pages = "23",
doi = "10.2298/SOS220802023M"
}

Matović, B., Maletaškić, J., Maksimović, V., Dimitrijević, S., Todorović, B., Zagorac, J., Luković, A., Zeng, Y.,& Cvijović-Alagić, I.. (2023). Synthesis and characterization of high-entropy A2B2O7 pyrochlore with multiple elements at A and B sites. in Science of Sintering(InPress), 23.
https://doi.org/10.2298/SOS220802023M

Matović B, Maletaškić J, Maksimović V, Dimitrijević S, Todorović B, Zagorac J, Luković A, Zeng Y, Cvijović-Alagić I. Synthesis and characterization of high-entropy A2B2O7 pyrochlore with multiple elements at A and B sites. in Science of Sintering. 2023;(InPress):23.
doi:10.2298/SOS220802023M .

Matović, Branko, Maletaškić, Jelena, Maksimović, Vesna, Dimitrijević, Silvana, Todorović, Bratislav, Zagorac, Jelena, Luković, Aleksa, Zeng, Yu-Ping, Cvijović-Alagić, Ivana, "Synthesis and characterization of high-entropy A2B2O7 pyrochlore with multiple elements at A and B sites" in Science of Sintering, no. InPress (2023):23,
https://doi.org/10.2298/SOS220802023M . .

TY  - JOUR
AU  - Mitrović Rajić, Anđela
AU  - Pantić, Tijana
AU  - Milošević-Govedarović, Sanja
AU  - Paskaš Mamula, Bojana
AU  - Filipović, Nenad
AU  - Grbović Novaković, Jasmina
AU  - Dimitrijević, Silvana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12882
AB  - The effect of mechanical milling on the thermal behavior of pyrophyllite ore from a deposit in Parsovići, Bosnia and Herzegovina, was characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and Particle size distribution. The thermal behavior of the material was followed by thermogravimetric and differential thermal analysis and correlated to its microstructural properties. The Williamson-Hall model was used to calculate the crystallite size and microstrain. Mechanochemical treatment of pyrophyllite ore produced a substantial structural modification, mainly along the c axis, resulting in disorder and partial degradation of the crystal structure of the ore. The particle size diminution, induced defects, and microstrain in the crystal lattice cause decrease in the peak intensity until the final disappearance. As confirmed by scanning electron microscopy and particle-size-distribution analysis, the surface area and the agglomeration is more pronounced as grinding time increases. Dehydroxylation of the minerals in the unmilled ore was realized at 716oC confirm by FTIR analysis. The endothermic peak that corresponds to dehydroxylation is shifted toward lower temperatures and becomes broad giving rise to the formation of amorphous SiO2 as milling time increases.
T2  - Science of Sintering
T1  - Influence of mechanochemical activation on the thermal behavior of pyrophyllite
VL  - 55
SP  - 453
EP  - 467
DO  - 10.2298/SOS220715018M
ER  - 

@article{
author = "Mitrović Rajić, Anđela and Pantić, Tijana and Milošević-Govedarović, Sanja and Paskaš Mamula, Bojana and Filipović, Nenad and Grbović Novaković, Jasmina and Dimitrijević, Silvana",
year = "2023",
abstract = "The effect of mechanical milling on the thermal behavior of pyrophyllite ore from a deposit in Parsovići, Bosnia and Herzegovina, was characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and Particle size distribution. The thermal behavior of the material was followed by thermogravimetric and differential thermal analysis and correlated to its microstructural properties. The Williamson-Hall model was used to calculate the crystallite size and microstrain. Mechanochemical treatment of pyrophyllite ore produced a substantial structural modification, mainly along the c axis, resulting in disorder and partial degradation of the crystal structure of the ore. The particle size diminution, induced defects, and microstrain in the crystal lattice cause decrease in the peak intensity until the final disappearance. As confirmed by scanning electron microscopy and particle-size-distribution analysis, the surface area and the agglomeration is more pronounced as grinding time increases. Dehydroxylation of the minerals in the unmilled ore was realized at 716oC confirm by FTIR analysis. The endothermic peak that corresponds to dehydroxylation is shifted toward lower temperatures and becomes broad giving rise to the formation of amorphous SiO2 as milling time increases.",
journal = "Science of Sintering",
title = "Influence of mechanochemical activation on the thermal behavior of pyrophyllite",
volume = "55",
pages = "453-467",
doi = "10.2298/SOS220715018M"
}

Mitrović Rajić, A., Pantić, T., Milošević-Govedarović, S., Paskaš Mamula, B., Filipović, N., Grbović Novaković, J.,& Dimitrijević, S.. (2023). Influence of mechanochemical activation on the thermal behavior of pyrophyllite. in Science of Sintering, 55, 453-467.
https://doi.org/10.2298/SOS220715018M

Mitrović Rajić A, Pantić T, Milošević-Govedarović S, Paskaš Mamula B, Filipović N, Grbović Novaković J, Dimitrijević S. Influence of mechanochemical activation on the thermal behavior of pyrophyllite. in Science of Sintering. 2023;55:453-467.
doi:10.2298/SOS220715018M .

Mitrović Rajić, Anđela, Pantić, Tijana, Milošević-Govedarović, Sanja, Paskaš Mamula, Bojana, Filipović, Nenad, Grbović Novaković, Jasmina, Dimitrijević, Silvana, "Influence of mechanochemical activation on the thermal behavior of pyrophyllite" in Science of Sintering, 55 (2023):453-467,
https://doi.org/10.2298/SOS220715018M . .

TY  - CONF
AU  - Veljković, Filip M.
AU  - Radović, Ivana M.
AU  - Drakulić, Dunja R.
AU  - Dimitrijević, Stevan
AU  - Dimitrijević, Silvana
AU  - Stoiljković, Milovan
AU  - Veličković, Suzana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10789
AB  - Silver alloys are generally used in the different fields of industry, including chemical processing, construction, heat exchangers, etc. Although Ag-Cu-Zn-Cd type of alloys, were widely exploited in the second half of the 20th century for their excellent properties, its use is forbidden in the EU due to the high toxicity of cadmium vapors. Ag-Cu-In type of alloy is a good alternative to Ag-Cu-Zn-Cd alloys, with great properties and can be used in various fields of industry. Most common methods for characterization of surface corrosion films of Ag-Cu alloys are: X-ray diffraction (XRD), scanning electron microscopy with energy dispersion spectroscopy (SEM-EDS), Raman spectroscopy and atomic force microscopy (AFM). Our current study focuses on the application of laser desorption ionization mass spectrometry (LDI MS) for determination of corrosion products of Ag-Cu alloy. The aim of this study was to confirm LDI MS as a fast, accurate and reliable method for determination of corrosion products on the surface of Ag-Cu-In alloy.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
T1  - Determination of corrosion products of Ag-Cu alloy by laser desorption ionization mass spectrometry
SP  - 50
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10789
ER  - 

@conference{
author = "Veljković, Filip M. and Radović, Ivana M. and Drakulić, Dunja R. and Dimitrijević, Stevan and Dimitrijević, Silvana and Stoiljković, Milovan and Veličković, Suzana",
year = "2021",
abstract = "Silver alloys are generally used in the different fields of industry, including chemical processing, construction, heat exchangers, etc. Although Ag-Cu-Zn-Cd type of alloys, were widely exploited in the second half of the 20th century for their excellent properties, its use is forbidden in the EU due to the high toxicity of cadmium vapors. Ag-Cu-In type of alloy is a good alternative to Ag-Cu-Zn-Cd alloys, with great properties and can be used in various fields of industry. Most common methods for characterization of surface corrosion films of Ag-Cu alloys are: X-ray diffraction (XRD), scanning electron microscopy with energy dispersion spectroscopy (SEM-EDS), Raman spectroscopy and atomic force microscopy (AFM). Our current study focuses on the application of laser desorption ionization mass spectrometry (LDI MS) for determination of corrosion products of Ag-Cu alloy. The aim of this study was to confirm LDI MS as a fast, accurate and reliable method for determination of corrosion products on the surface of Ag-Cu-In alloy.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade",
title = "Determination of corrosion products of Ag-Cu alloy by laser desorption ionization mass spectrometry",
pages = "50",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10789"
}

Veljković, F. M., Radović, I. M., Drakulić, D. R., Dimitrijević, S., Dimitrijević, S., Stoiljković, M.,& Veličković, S.. (2021). Determination of corrosion products of Ag-Cu alloy by laser desorption ionization mass spectrometry. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade
Belgrade : Serbian Ceramic Society., 50.
https://hdl.handle.net/21.15107/rcub_vinar_10789

Veljković FM, Radović IM, Drakulić DR, Dimitrijević S, Dimitrijević S, Stoiljković M, Veličković S. Determination of corrosion products of Ag-Cu alloy by laser desorption ionization mass spectrometry. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:50.
https://hdl.handle.net/21.15107/rcub_vinar_10789 .

Veljković, Filip M., Radović, Ivana M., Drakulić, Dunja R., Dimitrijević, Stevan, Dimitrijević, Silvana, Stoiljković, Milovan, Veličković, Suzana, "Determination of corrosion products of Ag-Cu alloy by laser desorption ionization mass spectrometry" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):50,
https://hdl.handle.net/21.15107/rcub_vinar_10789 .

TY  - JOUR
AU  - Dimitrijević, Silvana B.
AU  - Veličković, Suzana
AU  - Ivanović, Aleksandra T.
AU  - Veljković, Filip M.
AU  - Jovanović, Milan M.
AU  - Kamberović, Željko
AU  - Dimitrijević, Stevan P.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10138
AB  - A cost-effective and simple hydrometallurgy procedure for recycling the diamond core drilling crowns by nitric acid leaching, followed by the sodium hydroxide leaching, has been developed. The effect of temperature, nitric acid/sodium hydroxide concentration, leaching time and stirring rate were studied. For the acid leaching process the optimal values for parameters were 60 °C, 1.0 M HNO3, 2.5 h, and 800 rpm. It has been noted that the key factors in the alkaline leaching process were temperature and NaOH concentration. For the alkaline leaching, the optimal parameters were 100 °C, 40% concentration of NaOH solution, and leaching time of 4 h. Identification and characterisation of products in all technological processes were performed by X-Ray Diffraction (XRD), scanning electron microscope using energy-dispersive X-ray spectroscopy (SEM-EDS), and laser desorption ionisation mass spectrometry (LDI-MS). The analysis of solutions in all phases was performed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The use of LDI-MS as a new approach to identify the products after phases in the recycling process was an important part of the study, and the results were consistent with the XRD analysis. The total tungsten recovery was over 95.6%, with a high purity of the obtained tungsten trioxide.
T2  - International Journal of Refractory Metals and Hard Materials
T2  - International Journal of Refractory Metals and Hard MaterialsInternational Journal of Refractory Metals and Hard Materials
T1  - Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching
VL  - 101
SP  - 105695
DO  - 10.1016/j.ijrmhm.2021.105695
ER  - 

@article{
author = "Dimitrijević, Silvana B. and Veličković, Suzana and Ivanović, Aleksandra T. and Veljković, Filip M. and Jovanović, Milan M. and Kamberović, Željko and Dimitrijević, Stevan P.",
year = "2021",
abstract = "A cost-effective and simple hydrometallurgy procedure for recycling the diamond core drilling crowns by nitric acid leaching, followed by the sodium hydroxide leaching, has been developed. The effect of temperature, nitric acid/sodium hydroxide concentration, leaching time and stirring rate were studied. For the acid leaching process the optimal values for parameters were 60 °C, 1.0 M HNO3, 2.5 h, and 800 rpm. It has been noted that the key factors in the alkaline leaching process were temperature and NaOH concentration. For the alkaline leaching, the optimal parameters were 100 °C, 40% concentration of NaOH solution, and leaching time of 4 h. Identification and characterisation of products in all technological processes were performed by X-Ray Diffraction (XRD), scanning electron microscope using energy-dispersive X-ray spectroscopy (SEM-EDS), and laser desorption ionisation mass spectrometry (LDI-MS). The analysis of solutions in all phases was performed by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The use of LDI-MS as a new approach to identify the products after phases in the recycling process was an important part of the study, and the results were consistent with the XRD analysis. The total tungsten recovery was over 95.6%, with a high purity of the obtained tungsten trioxide.",
journal = "International Journal of Refractory Metals and Hard Materials, International Journal of Refractory Metals and Hard MaterialsInternational Journal of Refractory Metals and Hard Materials",
title = "Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching",
volume = "101",
pages = "105695",
doi = "10.1016/j.ijrmhm.2021.105695"
}

Dimitrijević, S. B., Veličković, S., Ivanović, A. T., Veljković, F. M., Jovanović, M. M., Kamberović, Ž.,& Dimitrijević, S. P.. (2021). Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching. in International Journal of Refractory Metals and Hard Materials, 101, 105695.
https://doi.org/10.1016/j.ijrmhm.2021.105695

Dimitrijević SB, Veličković S, Ivanović AT, Veljković FM, Jovanović MM, Kamberović Ž, Dimitrijević SP. Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching. in International Journal of Refractory Metals and Hard Materials. 2021;101:105695.
doi:10.1016/j.ijrmhm.2021.105695 .

Dimitrijević, Silvana B., Veličković, Suzana, Ivanović, Aleksandra T., Veljković, Filip M., Jovanović, Milan M., Kamberović, Željko, Dimitrijević, Stevan P., "Recovery of tungsten trioxide from waste diamond core drilling crowns by nitric acid leaching" in International Journal of Refractory Metals and Hard Materials, 101 (2021):105695,
https://doi.org/10.1016/j.ijrmhm.2021.105695 . .

TY  - JOUR
AU  - Dimitrijević, Stevan P.
AU  - Vurdelja, Borislava D.
AU  - Dimitrijević, Silvana B.
AU  - Veljković, Filip M.
AU  - Kamberović, Željko
AU  - Veličković, Suzana
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8569
AB  - Corrosion products formed on the surface of two silver brazing alloys after the potentiostatic polarization in 3.5% sodium chloride solution were characterized by the standard methods such as, the X-ray diffraction, micro-Raman spectroscopy, and scanning electron microscopy with energy-dispersive spectroscopy. This paper presents the results of a laser desorption/ionization mass spectrometry (LDI MS) analysis as a new approach to the characterization of corrosion products. The potential of the anodic polarization was 0.5 V versus saturated calomel electrode, and the process duration was 300 s. The corrosion layers on both investigated alloys were similar in composition with cuprous chloride and silver chloride as the main components and had strong indications of cuprous oxide formation. The major difference between these two layers was the existence of zinc hydroxychloride as the corrosion product of Ag-Cu-Zn alloy. Palladium compounds were not found in the case of Ag-Cu-Pd alloy. The results of different methods have shown a good consistency. Complementarity between the used methods was useful in the interpretation of the results for each used method. This study has demonstrated that LDI MS can be used as an efficient additional method together with the traditional ones.
T2  - Corrosion Reviews
T1  - Complementary methods for characterization of the corrosion products on the surface of Ag60Cu26Zn14 and Ag58.5Cu31.5Pd10 brazing alloys
VL  - 38
IS  - 2
SP  - 111
EP  - 125
DO  - 10.1515/corrrev-2019-0067
ER  - 

@article{
author = "Dimitrijević, Stevan P. and Vurdelja, Borislava D. and Dimitrijević, Silvana B. and Veljković, Filip M. and Kamberović, Željko and Veličković, Suzana",
year = "2020",
abstract = "Corrosion products formed on the surface of two silver brazing alloys after the potentiostatic polarization in 3.5% sodium chloride solution were characterized by the standard methods such as, the X-ray diffraction, micro-Raman spectroscopy, and scanning electron microscopy with energy-dispersive spectroscopy. This paper presents the results of a laser desorption/ionization mass spectrometry (LDI MS) analysis as a new approach to the characterization of corrosion products. The potential of the anodic polarization was 0.5 V versus saturated calomel electrode, and the process duration was 300 s. The corrosion layers on both investigated alloys were similar in composition with cuprous chloride and silver chloride as the main components and had strong indications of cuprous oxide formation. The major difference between these two layers was the existence of zinc hydroxychloride as the corrosion product of Ag-Cu-Zn alloy. Palladium compounds were not found in the case of Ag-Cu-Pd alloy. The results of different methods have shown a good consistency. Complementarity between the used methods was useful in the interpretation of the results for each used method. This study has demonstrated that LDI MS can be used as an efficient additional method together with the traditional ones.",
journal = "Corrosion Reviews",
title = "Complementary methods for characterization of the corrosion products on the surface of Ag60Cu26Zn14 and Ag58.5Cu31.5Pd10 brazing alloys",
volume = "38",
number = "2",
pages = "111-125",
doi = "10.1515/corrrev-2019-0067"
}

Dimitrijević, S. P., Vurdelja, B. D., Dimitrijević, S. B., Veljković, F. M., Kamberović, Ž.,& Veličković, S.. (2020). Complementary methods for characterization of the corrosion products on the surface of Ag60Cu26Zn14 and Ag58.5Cu31.5Pd10 brazing alloys. in Corrosion Reviews, 38(2), 111-125.
https://doi.org/10.1515/corrrev-2019-0067

Dimitrijević SP, Vurdelja BD, Dimitrijević SB, Veljković FM, Kamberović Ž, Veličković S. Complementary methods for characterization of the corrosion products on the surface of Ag60Cu26Zn14 and Ag58.5Cu31.5Pd10 brazing alloys. in Corrosion Reviews. 2020;38(2):111-125.
doi:10.1515/corrrev-2019-0067 .

Dimitrijević, Stevan P., Vurdelja, Borislava D., Dimitrijević, Silvana B., Veljković, Filip M., Kamberović, Željko, Veličković, Suzana, "Complementary methods for characterization of the corrosion products on the surface of Ag60Cu26Zn14 and Ag58.5Cu31.5Pd10 brazing alloys" in Corrosion Reviews, 38, no. 2 (2020):111-125,
https://doi.org/10.1515/corrrev-2019-0067 . .

TY  - JOUR
AU  - Rajčić, Boris
AU  - Dimitrijević, Silvana B.
AU  - Petković, Marijana
AU  - Nišavić, Marija
AU  - Cindrić, Mario
AU  - Veljković, Filip M.
AU  - Veličković, Suzana
PY  - 2018
UR  - http://link.springer.com/10.1007/s11082-018-1476-2
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7687
AB  - In this work, a simple way for study the possibility of formation a vapor cluster species of tetrachloroauric acid (HAuCl4), using the laser ablation in the absence of a buffer or reactive atmosphere, and without a postablation supersonic expansion on a commercial matrix assisted laser desorption/ionization time-of-flight mass spectrometer, is reported. Tetrachloroauric acid is known as precursor for the synthesis of gold nanostructures and the complex salts; therefore it is an important task to discover and quantify the species arising from HAuCl4, in order to understand their role in the gold assisted reactions. Mass spectrum of HAuCl4in a reflector negative-ion mode contains the hydrated mono- and dinuclear gold clusters in the m/z range 286–436, and gold chloride clusters in the m/z range 447–795. In the first part of spectrum, m/z range 286–436, the hydrated gold cluster species of type Aun−(H2O)m(n = 1–2; m = 1, 2, 5, 7, 8) and [Aun(OH)k]−(H2O)m(n = 1–2; k = 1–2; m = 1, 4–8) were found. Besides that, there are gold chloride clusters with general formula [AuHr(HCl)2]−(H2O)m(m = 1–5; 8–9; r = 0–2) in this part of spectrum. In the second part of spectrum, the m/z range 447–795, only gold chloride clusters were obtained. Their general formulae can be written as [AuClt(HCl)v]−(H2O)m(t = 1–4; v = 5–8; m = 2–4, 6–8) and [Aun(HCl)v]−(H2O)m(n = 1–2, v = 4–5, m = 1–2, 5, 7). The analysis of concentration effects on the LDI mass spectra of gold clusters reveals that the relative intensities of signals for the mono- and dinuclear Au clusters increase with decreasing the concentration of water HAuCl4solutions.
T2  - Optical and Quantum Electronics
T1  - Gold chloride cluster ions generated by vacuum laser ablation
VL  - 50
IS  - 5
SP  - 218
DO  - 10.1007/s11082-018-1476-2
ER  - 

@article{
author = "Rajčić, Boris and Dimitrijević, Silvana B. and Petković, Marijana and Nišavić, Marija and Cindrić, Mario and Veljković, Filip M. and Veličković, Suzana",
year = "2018",
abstract = "In this work, a simple way for study the possibility of formation a vapor cluster species of tetrachloroauric acid (HAuCl4), using the laser ablation in the absence of a buffer or reactive atmosphere, and without a postablation supersonic expansion on a commercial matrix assisted laser desorption/ionization time-of-flight mass spectrometer, is reported. Tetrachloroauric acid is known as precursor for the synthesis of gold nanostructures and the complex salts; therefore it is an important task to discover and quantify the species arising from HAuCl4, in order to understand their role in the gold assisted reactions. Mass spectrum of HAuCl4in a reflector negative-ion mode contains the hydrated mono- and dinuclear gold clusters in the m/z range 286–436, and gold chloride clusters in the m/z range 447–795. In the first part of spectrum, m/z range 286–436, the hydrated gold cluster species of type Aun−(H2O)m(n = 1–2; m = 1, 2, 5, 7, 8) and [Aun(OH)k]−(H2O)m(n = 1–2; k = 1–2; m = 1, 4–8) were found. Besides that, there are gold chloride clusters with general formula [AuHr(HCl)2]−(H2O)m(m = 1–5; 8–9; r = 0–2) in this part of spectrum. In the second part of spectrum, the m/z range 447–795, only gold chloride clusters were obtained. Their general formulae can be written as [AuClt(HCl)v]−(H2O)m(t = 1–4; v = 5–8; m = 2–4, 6–8) and [Aun(HCl)v]−(H2O)m(n = 1–2, v = 4–5, m = 1–2, 5, 7). The analysis of concentration effects on the LDI mass spectra of gold clusters reveals that the relative intensities of signals for the mono- and dinuclear Au clusters increase with decreasing the concentration of water HAuCl4solutions.",
journal = "Optical and Quantum Electronics",
title = "Gold chloride cluster ions generated by vacuum laser ablation",
volume = "50",
number = "5",
pages = "218",
doi = "10.1007/s11082-018-1476-2"
}

Rajčić, B., Dimitrijević, S. B., Petković, M., Nišavić, M., Cindrić, M., Veljković, F. M.,& Veličković, S.. (2018). Gold chloride cluster ions generated by vacuum laser ablation. in Optical and Quantum Electronics, 50(5), 218.
https://doi.org/10.1007/s11082-018-1476-2

Rajčić B, Dimitrijević SB, Petković M, Nišavić M, Cindrić M, Veljković FM, Veličković S. Gold chloride cluster ions generated by vacuum laser ablation. in Optical and Quantum Electronics. 2018;50(5):218.
doi:10.1007/s11082-018-1476-2 .

Rajčić, Boris, Dimitrijević, Silvana B., Petković, Marijana, Nišavić, Marija, Cindrić, Mario, Veljković, Filip M., Veličković, Suzana, "Gold chloride cluster ions generated by vacuum laser ablation" in Optical and Quantum Electronics, 50, no. 5 (2018):218,
https://doi.org/10.1007/s11082-018-1476-2 . .

TY  - JOUR
AU  - Dimitrijević, Stevan P.
AU  - Manasijević, Dragan
AU  - Kamberović, Željko
AU  - Dimitrijević, Silvana B.
AU  - Mitrić, Miodrag
AU  - Gorgievski, Milan
AU  - Mladenović, Srba
PY  - 2018
UR  - http://link.springer.com/10.1007/s11665-018-3258-1
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7670
AB  - Microstructure and phase transitions of selected brazing alloys from the Ag-Cu-Zn ternary system were investigated. Four ternary alloys with silver content in the compositional range from 25 to 60 wt.% were studied using x-ray diffraction (XRD) and scanning electron microscopy coupled with the energy-dispersive spectroscopy (SEM-EDS). Phase transitions of the investigated alloys were measured using differential scanning calorimetry (DSC). Experimentally obtained results were compared with the results of a thermodynamic calculation of the phase equilibria according to the CALPHAD method. The experiments confirmed the optimized thermodynamic parameters for the calculations from the thermodynamic assessment in literature. Phase compositions, liquidus and solidus temperatures were confirmed by the EDS and DTA methods. Additionally, the calculated solidification paths and predicted phase transformations were in agreement with the SEM images.
T2  - Journal of Materials Engineering and Performance
T1  - Experimental Investigation of Microstructure and Phase Transitions in Ag-Cu-Zn Brazing Alloys
VL  - 27
IS  - 4
SP  - 1570
EP  - 1579
DO  - 10.1007/s11665-018-3258-1
ER  - 

@article{
author = "Dimitrijević, Stevan P. and Manasijević, Dragan and Kamberović, Željko and Dimitrijević, Silvana B. and Mitrić, Miodrag and Gorgievski, Milan and Mladenović, Srba",
year = "2018",
abstract = "Microstructure and phase transitions of selected brazing alloys from the Ag-Cu-Zn ternary system were investigated. Four ternary alloys with silver content in the compositional range from 25 to 60 wt.% were studied using x-ray diffraction (XRD) and scanning electron microscopy coupled with the energy-dispersive spectroscopy (SEM-EDS). Phase transitions of the investigated alloys were measured using differential scanning calorimetry (DSC). Experimentally obtained results were compared with the results of a thermodynamic calculation of the phase equilibria according to the CALPHAD method. The experiments confirmed the optimized thermodynamic parameters for the calculations from the thermodynamic assessment in literature. Phase compositions, liquidus and solidus temperatures were confirmed by the EDS and DTA methods. Additionally, the calculated solidification paths and predicted phase transformations were in agreement with the SEM images.",
journal = "Journal of Materials Engineering and Performance",
title = "Experimental Investigation of Microstructure and Phase Transitions in Ag-Cu-Zn Brazing Alloys",
volume = "27",
number = "4",
pages = "1570-1579",
doi = "10.1007/s11665-018-3258-1"
}

Dimitrijević, S. P., Manasijević, D., Kamberović, Ž., Dimitrijević, S. B., Mitrić, M., Gorgievski, M.,& Mladenović, S.. (2018). Experimental Investigation of Microstructure and Phase Transitions in Ag-Cu-Zn Brazing Alloys. in Journal of Materials Engineering and Performance, 27(4), 1570-1579.
https://doi.org/10.1007/s11665-018-3258-1

Dimitrijević SP, Manasijević D, Kamberović Ž, Dimitrijević SB, Mitrić M, Gorgievski M, Mladenović S. Experimental Investigation of Microstructure and Phase Transitions in Ag-Cu-Zn Brazing Alloys. in Journal of Materials Engineering and Performance. 2018;27(4):1570-1579.
doi:10.1007/s11665-018-3258-1 .

Dimitrijević, Stevan P., Manasijević, Dragan, Kamberović, Željko, Dimitrijević, Silvana B., Mitrić, Miodrag, Gorgievski, Milan, Mladenović, Srba, "Experimental Investigation of Microstructure and Phase Transitions in Ag-Cu-Zn Brazing Alloys" in Journal of Materials Engineering and Performance, 27, no. 4 (2018):1570-1579,
https://doi.org/10.1007/s11665-018-3258-1 . .

TY  - JOUR
AU  - Vurdelja, Borislava D.
AU  - Dimitrijević, Stevan P.
AU  - Dimitrijević, Silvana B.
AU  - Kamberović, Željko
AU  - Veličković, Suzana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1847
AB  - This work is the first to demonstrate the possibilities of direct analysis of the corrosion film formed on Ag43Cu37Zn20 alloy using laser desorption/ionization (LDI) on a commercial matrix-assisted LDI time of flight mass spectrometry (MS) instrument. In the LDI mass spectra measured from the water solution of the corrosion film, the ion species Zn+, Zn(H2O)(+), AgH+, Cu2H+, Cu2O(OH)+, Cu3O(OH)(+) (high intensity), and Cu(OH)(H2O)(+), ZnCl(OH)(H2O)(+), AgCl+, CuCl+ (low intensity) were identified. The LDI mass spectra of the propan-2-ol solution of the corrosion film contains the ions Zn5Cl(OH)(3)(H2O)(11)(+), Zn5Cl2 (OH)(8) (H2O)(6)(+), and Zn5Cl2 (OH)(H2O)(14)(+). Mass spectra were observed at laser energies in the range of 1340-1860 arbitrary units in positive ion mode. Previously, Raman spectra and X-ray diffraction (XRD) analysis of the same anodic film have shown similar results as LDI MS -that the anodic film contains the mixture of Ag, Cu2O, CuCl, Zn5Cl2(OH)(8) center dot H2O, and beta-Zn(OH) Cl. LDI MS could be a complementary method for XRD and Raman, as demonstrated in this investigation. The LDI MS method greatly reduces the analysis time and amount of the sample compared to traditional methods. For this reason, the LDI MS method can be a useful tool for the fast qualitative screening of corrosion films.
T2  - Corrosion Reviews
T1  - Characterization of the Ag43Cu37Zn20 alloy surface after potentiostatic polarization using LDI-TOF mass spectrometry
VL  - 35
IS  - 6
SP  - 473
EP  - 481
DO  - 10.1515/corrrev-2017-0065
ER  - 

@article{
author = "Vurdelja, Borislava D. and Dimitrijević, Stevan P. and Dimitrijević, Silvana B. and Kamberović, Željko and Veličković, Suzana",
year = "2017",
abstract = "This work is the first to demonstrate the possibilities of direct analysis of the corrosion film formed on Ag43Cu37Zn20 alloy using laser desorption/ionization (LDI) on a commercial matrix-assisted LDI time of flight mass spectrometry (MS) instrument. In the LDI mass spectra measured from the water solution of the corrosion film, the ion species Zn+, Zn(H2O)(+), AgH+, Cu2H+, Cu2O(OH)+, Cu3O(OH)(+) (high intensity), and Cu(OH)(H2O)(+), ZnCl(OH)(H2O)(+), AgCl+, CuCl+ (low intensity) were identified. The LDI mass spectra of the propan-2-ol solution of the corrosion film contains the ions Zn5Cl(OH)(3)(H2O)(11)(+), Zn5Cl2 (OH)(8) (H2O)(6)(+), and Zn5Cl2 (OH)(H2O)(14)(+). Mass spectra were observed at laser energies in the range of 1340-1860 arbitrary units in positive ion mode. Previously, Raman spectra and X-ray diffraction (XRD) analysis of the same anodic film have shown similar results as LDI MS -that the anodic film contains the mixture of Ag, Cu2O, CuCl, Zn5Cl2(OH)(8) center dot H2O, and beta-Zn(OH) Cl. LDI MS could be a complementary method for XRD and Raman, as demonstrated in this investigation. The LDI MS method greatly reduces the analysis time and amount of the sample compared to traditional methods. For this reason, the LDI MS method can be a useful tool for the fast qualitative screening of corrosion films.",
journal = "Corrosion Reviews",
title = "Characterization of the Ag43Cu37Zn20 alloy surface after potentiostatic polarization using LDI-TOF mass spectrometry",
volume = "35",
number = "6",
pages = "473-481",
doi = "10.1515/corrrev-2017-0065"
}

Vurdelja, B. D., Dimitrijević, S. P., Dimitrijević, S. B., Kamberović, Ž.,& Veličković, S.. (2017). Characterization of the Ag43Cu37Zn20 alloy surface after potentiostatic polarization using LDI-TOF mass spectrometry. in Corrosion Reviews, 35(6), 473-481.
https://doi.org/10.1515/corrrev-2017-0065

Vurdelja BD, Dimitrijević SP, Dimitrijević SB, Kamberović Ž, Veličković S. Characterization of the Ag43Cu37Zn20 alloy surface after potentiostatic polarization using LDI-TOF mass spectrometry. in Corrosion Reviews. 2017;35(6):473-481.
doi:10.1515/corrrev-2017-0065 .

Vurdelja, Borislava D., Dimitrijević, Stevan P., Dimitrijević, Silvana B., Kamberović, Željko, Veličković, Suzana, "Characterization of the Ag43Cu37Zn20 alloy surface after potentiostatic polarization using LDI-TOF mass spectrometry" in Corrosion Reviews, 35, no. 6 (2017):473-481,
https://doi.org/10.1515/corrrev-2017-0065 . .