TY  - JOUR
AU  - Biliškov, Nikola
AU  - Milanović, Igor
AU  - Milović, Miloš
AU  - Takats, Viktor
AU  - Erdelyi, Zoltan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10656
AB  - The maximization of the number of exposed edges of layered MoS2-type transition metal dichalcogenides of general formula MX2 (M = Mo, W; X = S, Se) is difficult yet meaningful way to improve their electrochemical and electrocatalytic performance. In this work, an all-solid ball milling method for simultaneous introduction of defects and their hybridization through binding of ammonia borane (NH3BH3) to defect sites of MX2 is demonstrated. The milling conditions leads to partial separation and nanosizing of MX2 layers, simultaneously extensively introducing defects (cracks, vacancies, strains, voids etc.), while the detailed analysis revealed the functionalization of the material by binding of NH3BH3 to defect sites, which results in highly improved electrocatalytic performance of thus obtained composites with respect to MX2 for hydrogen evolution reaction. The mechanochemical approach thus enables preparation of MoS2-type materials with improved, highly tunable activity, potentially relevant for energy conversion and storage.
T2  - Journal of Alloys and Compounds
T1  - Ammonia borane assisted mechanochemical boost of electrochemical performance of basal planes of MoS2-type materials
VL  - 945
SP  - 169293
DO  - 10.1016/j.jallcom.2023.169293
ER  - 

@article{
author = "Biliškov, Nikola and Milanović, Igor and Milović, Miloš and Takats, Viktor and Erdelyi, Zoltan",
year = "2023",
abstract = "The maximization of the number of exposed edges of layered MoS2-type transition metal dichalcogenides of general formula MX2 (M = Mo, W; X = S, Se) is difficult yet meaningful way to improve their electrochemical and electrocatalytic performance. In this work, an all-solid ball milling method for simultaneous introduction of defects and their hybridization through binding of ammonia borane (NH3BH3) to defect sites of MX2 is demonstrated. The milling conditions leads to partial separation and nanosizing of MX2 layers, simultaneously extensively introducing defects (cracks, vacancies, strains, voids etc.), while the detailed analysis revealed the functionalization of the material by binding of NH3BH3 to defect sites, which results in highly improved electrocatalytic performance of thus obtained composites with respect to MX2 for hydrogen evolution reaction. The mechanochemical approach thus enables preparation of MoS2-type materials with improved, highly tunable activity, potentially relevant for energy conversion and storage.",
journal = "Journal of Alloys and Compounds",
title = "Ammonia borane assisted mechanochemical boost of electrochemical performance of basal planes of MoS2-type materials",
volume = "945",
pages = "169293",
doi = "10.1016/j.jallcom.2023.169293"
}

Biliškov, N., Milanović, I., Milović, M., Takats, V.,& Erdelyi, Z.. (2023). Ammonia borane assisted mechanochemical boost of electrochemical performance of basal planes of MoS2-type materials. in Journal of Alloys and Compounds, 945, 169293.
https://doi.org/10.1016/j.jallcom.2023.169293

Biliškov N, Milanović I, Milović M, Takats V, Erdelyi Z. Ammonia borane assisted mechanochemical boost of electrochemical performance of basal planes of MoS2-type materials. in Journal of Alloys and Compounds. 2023;945:169293.
doi:10.1016/j.jallcom.2023.169293 .

Biliškov, Nikola, Milanović, Igor, Milović, Miloš, Takats, Viktor, Erdelyi, Zoltan, "Ammonia borane assisted mechanochemical boost of electrochemical performance of basal planes of MoS2-type materials" in Journal of Alloys and Compounds, 945 (2023):169293,
https://doi.org/10.1016/j.jallcom.2023.169293 . .

TY  - JOUR
AU  - Milićević, Nemanja
AU  - Novaković, Mirjana M.
AU  - Potočnik, Jelena
AU  - Milović, Miloš
AU  - Rakočević, Lazar
AU  - Abazović, Nadica
AU  - Pjević, Dejan J.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10194
AB  - Enhanced optical properties of TiO2 thin films can be achieved by doping or coating with metals. Metal-doped TiO2 can reduce electron-hole recombination and increase hydroxyl radical concentration on the surface of TiO2, resulting in increase of the photocatalytic activity. TiO2 and TiO2-Au thin films were obtained by DC magnetron sputtering of Ti target with Ar ions in O2 atmosphere. In the case of Au buffered TiO2 thin films, two different systems were deposited for comparison. Post deposition annealing at 400 °C was carried out in nitrogen atmosphere for 3 h. The structural and optical characteristics of the prepared films were investigated in detail by the combination of high-resolution microscopic and spectroscopic techniques. The photo-degradation rate was measured using Rhodamine B which simulated pollutant. Post deposition annealing resulted in diffusion of Au atoms through the layer as it was revealed by transmission electron microscopy and energy dispersive X-ray spectroscopy. The obtained TiO2 thin films were found to be amorphous after deposition and annealing at 400 °C leads to crystallization of anatase phase. Analysis of the binding energy in the corresponding X-ray photoelectron spectra has confirmed stoichiometry of TiO2 and that concentration of Au on the surface can be controlled by sputtering and annealing conditions, thus changing optical properties by influencing the surface plasmonic nature. All Au doped TiO2 thin films exhibited enhanced wettability and photo-degradation rates when compared to pristine titania films. © 2022 Elsevier B.V.
T2  - Surfaces and Interfaces
T1  - Influencing surface phenomena by Au diffusion in buffered TiO2-Au thin films: Effects of deposition and annealing processing
VL  - 30
SP  - 101811
DO  - 10.1016/j.surfin.2022.101811
ER  - 

@article{
author = "Milićević, Nemanja and Novaković, Mirjana M. and Potočnik, Jelena and Milović, Miloš and Rakočević, Lazar and Abazović, Nadica and Pjević, Dejan J.",
year = "2022",
abstract = "Enhanced optical properties of TiO2 thin films can be achieved by doping or coating with metals. Metal-doped TiO2 can reduce electron-hole recombination and increase hydroxyl radical concentration on the surface of TiO2, resulting in increase of the photocatalytic activity. TiO2 and TiO2-Au thin films were obtained by DC magnetron sputtering of Ti target with Ar ions in O2 atmosphere. In the case of Au buffered TiO2 thin films, two different systems were deposited for comparison. Post deposition annealing at 400 °C was carried out in nitrogen atmosphere for 3 h. The structural and optical characteristics of the prepared films were investigated in detail by the combination of high-resolution microscopic and spectroscopic techniques. The photo-degradation rate was measured using Rhodamine B which simulated pollutant. Post deposition annealing resulted in diffusion of Au atoms through the layer as it was revealed by transmission electron microscopy and energy dispersive X-ray spectroscopy. The obtained TiO2 thin films were found to be amorphous after deposition and annealing at 400 °C leads to crystallization of anatase phase. Analysis of the binding energy in the corresponding X-ray photoelectron spectra has confirmed stoichiometry of TiO2 and that concentration of Au on the surface can be controlled by sputtering and annealing conditions, thus changing optical properties by influencing the surface plasmonic nature. All Au doped TiO2 thin films exhibited enhanced wettability and photo-degradation rates when compared to pristine titania films. © 2022 Elsevier B.V.",
journal = "Surfaces and Interfaces",
title = "Influencing surface phenomena by Au diffusion in buffered TiO2-Au thin films: Effects of deposition and annealing processing",
volume = "30",
pages = "101811",
doi = "10.1016/j.surfin.2022.101811"
}

Milićević, N., Novaković, M. M., Potočnik, J., Milović, M., Rakočević, L., Abazović, N.,& Pjević, D. J.. (2022). Influencing surface phenomena by Au diffusion in buffered TiO2-Au thin films: Effects of deposition and annealing processing. in Surfaces and Interfaces, 30, 101811.
https://doi.org/10.1016/j.surfin.2022.101811

Milićević N, Novaković MM, Potočnik J, Milović M, Rakočević L, Abazović N, Pjević DJ. Influencing surface phenomena by Au diffusion in buffered TiO2-Au thin films: Effects of deposition and annealing processing. in Surfaces and Interfaces. 2022;30:101811.
doi:10.1016/j.surfin.2022.101811 .

Milićević, Nemanja, Novaković, Mirjana M., Potočnik, Jelena, Milović, Miloš, Rakočević, Lazar, Abazović, Nadica, Pjević, Dejan J., "Influencing surface phenomena by Au diffusion in buffered TiO2-Au thin films: Effects of deposition and annealing processing" in Surfaces and Interfaces, 30 (2022):101811,
https://doi.org/10.1016/j.surfin.2022.101811 . .

TY  - JOUR
AU  - Zdolšek, Nikola
AU  - Perović, Ivana
AU  - Brković, Snežana M.
AU  - Tasić, Gvozden S.
AU  - Milović, Miloš
AU  - Vujković, Milica
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11004
AB  - The capacitance and operating voltage of supercapacitors as well as their energy density have been increased by development of different materials and electrolytes. In this paper, two strategies, for the first time, were used to improve energy density: Mn3O4- and N-dual doped carbon electrode and aqueous mixture of multivalent ions as electrolyte. Mn3O4- and N-dual doped carbon was prepared by a novel and cost-effective procedure using deep eutectic solvent. XRD, XPS, and FTIR confirmed presence of Mn3O4 and nitrogen, while SEM and EDS elemental mapping showed micrometer-sized nanosheets with uniform distribution of C, O, N, and Mn atoms. Charge storage behavior of carbon was tested in aqueous multivalent-based electrolytes and their mixture (Ca2+-Al3+). Regarding both specific capacitance and workable voltage, the Ca2+-Al3+ mixed electrolyte was found as the best optimal solution. The calcium addition to the Al-electrolyte allows the higher operating voltage than in the case of individual Al(NO3)3 electrolyte while the addition of Al3+ ion in the Ca(NO3)2 electrolyte improves the multivalent-ion charge storage ability of carbon. As a result, the specific energy density of two-electrode Mn3O4@N-doped carbon//Al(NO3)2+Ca(NO3)2//Mn3O4@N-doped carbon supercapacitor (34 Wh kg−1 at 0.1 A g−1) overpasses the reported values obtained for Mn-based carbon supercapacitors using conventional aqueous electrolytes.
T2  - Materials
T1  - Deep Eutectic Solvent for Facile Synthesis of Mn3O4@N-Doped Carbon for Aqueous Multivalent-Based Supercapacitors: New Concept for Increasing Capacitance and Operating Voltage
VL  - 15
IS  - 23
SP  - 8540
DO  - 10.3390/ma15238540
ER  - 

@article{
author = "Zdolšek, Nikola and Perović, Ivana and Brković, Snežana M. and Tasić, Gvozden S. and Milović, Miloš and Vujković, Milica",
year = "2022",
abstract = "The capacitance and operating voltage of supercapacitors as well as their energy density have been increased by development of different materials and electrolytes. In this paper, two strategies, for the first time, were used to improve energy density: Mn3O4- and N-dual doped carbon electrode and aqueous mixture of multivalent ions as electrolyte. Mn3O4- and N-dual doped carbon was prepared by a novel and cost-effective procedure using deep eutectic solvent. XRD, XPS, and FTIR confirmed presence of Mn3O4 and nitrogen, while SEM and EDS elemental mapping showed micrometer-sized nanosheets with uniform distribution of C, O, N, and Mn atoms. Charge storage behavior of carbon was tested in aqueous multivalent-based electrolytes and their mixture (Ca2+-Al3+). Regarding both specific capacitance and workable voltage, the Ca2+-Al3+ mixed electrolyte was found as the best optimal solution. The calcium addition to the Al-electrolyte allows the higher operating voltage than in the case of individual Al(NO3)3 electrolyte while the addition of Al3+ ion in the Ca(NO3)2 electrolyte improves the multivalent-ion charge storage ability of carbon. As a result, the specific energy density of two-electrode Mn3O4@N-doped carbon//Al(NO3)2+Ca(NO3)2//Mn3O4@N-doped carbon supercapacitor (34 Wh kg−1 at 0.1 A g−1) overpasses the reported values obtained for Mn-based carbon supercapacitors using conventional aqueous electrolytes.",
journal = "Materials",
title = "Deep Eutectic Solvent for Facile Synthesis of Mn3O4@N-Doped Carbon for Aqueous Multivalent-Based Supercapacitors: New Concept for Increasing Capacitance and Operating Voltage",
volume = "15",
number = "23",
pages = "8540",
doi = "10.3390/ma15238540"
}

Zdolšek, N., Perović, I., Brković, S. M., Tasić, G. S., Milović, M.,& Vujković, M.. (2022). Deep Eutectic Solvent for Facile Synthesis of Mn3O4@N-Doped Carbon for Aqueous Multivalent-Based Supercapacitors: New Concept for Increasing Capacitance and Operating Voltage. in Materials, 15(23), 8540.
https://doi.org/10.3390/ma15238540

Zdolšek N, Perović I, Brković SM, Tasić GS, Milović M, Vujković M. Deep Eutectic Solvent for Facile Synthesis of Mn3O4@N-Doped Carbon for Aqueous Multivalent-Based Supercapacitors: New Concept for Increasing Capacitance and Operating Voltage. in Materials. 2022;15(23):8540.
doi:10.3390/ma15238540 .

Zdolšek, Nikola, Perović, Ivana, Brković, Snežana M., Tasić, Gvozden S., Milović, Miloš, Vujković, Milica, "Deep Eutectic Solvent for Facile Synthesis of Mn3O4@N-Doped Carbon for Aqueous Multivalent-Based Supercapacitors: New Concept for Increasing Capacitance and Operating Voltage" in Materials, 15, no. 23 (2022):8540,
https://doi.org/10.3390/ma15238540 . .

TY  - JOUR
AU  - Zdolšek, Nikola
AU  - Janković, Bojan Ž.
AU  - Milović, Miloš
AU  - Brković, Snežana M.
AU  - Krstić, Jugoslav B.
AU  - Perović, Ivana M.
AU  - Vujković, Milica
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10571
AB  - The development of carbon materials with desirable textures and new aqueous electrolytes is the key strategy to improve the performance of supercapacitors. Herein, a deep eutectic solvent (DES) was used for in situ templating of a carbon material. A carbon material was characterized (XRD, N2-physisorption, FTIR, SEM and EDS) and used as an electrode material for the first time in multivalent-based supercapacitors. In situ templating of carbon was performed using a novel DES, which serves as a precursor for carbon and for in situ generation of MgO. The generation of MgO and its roles in templating of carbon were discussed. Templating of carbon with MgO lead to an increase in surface area and a microporous texture. The obtained carbon was tested in multivalent-ion (Al3+ and Mg2+) electrolytes and compared with H2SO4. The charge-storage mechanism was investigated and elaborated. The highest specific capacitance was obtained for the Al(NO3)3 electrolyte, while the operating voltage follows the order: Mg(NO3)2 > Al(NO3)3 > H2SO4. Electrical double-layer capacitance (versus pseudocapacitance) was dominant in all investigated electrolytes. The larger operating voltage in multivalent electrolytes is a consequence of the lower fraction of free water, which suppresses hydrogen evolution (when compared with H2SO4). The GCD was experimentally performed on the Al(NO3)3 electrolyte, which showed good cyclic stability, with an energy density of 22.3 Wh kg−1 at 65 W kg−1.
T2  - Batteries
T1  - Deep Eutectic Solvent (DES) for In Situ Templating Carbon Material: Carbon Characterization and Application in Supercapacitors Containing Multivalent Ions
VL  - 8
IS  - 12
SP  - 284
DO  - 10.3390/batteries8120284
ER  - 

@article{
author = "Zdolšek, Nikola and Janković, Bojan Ž. and Milović, Miloš and Brković, Snežana M. and Krstić, Jugoslav B. and Perović, Ivana M. and Vujković, Milica",
year = "2022",
abstract = "The development of carbon materials with desirable textures and new aqueous electrolytes is the key strategy to improve the performance of supercapacitors. Herein, a deep eutectic solvent (DES) was used for in situ templating of a carbon material. A carbon material was characterized (XRD, N2-physisorption, FTIR, SEM and EDS) and used as an electrode material for the first time in multivalent-based supercapacitors. In situ templating of carbon was performed using a novel DES, which serves as a precursor for carbon and for in situ generation of MgO. The generation of MgO and its roles in templating of carbon were discussed. Templating of carbon with MgO lead to an increase in surface area and a microporous texture. The obtained carbon was tested in multivalent-ion (Al3+ and Mg2+) electrolytes and compared with H2SO4. The charge-storage mechanism was investigated and elaborated. The highest specific capacitance was obtained for the Al(NO3)3 electrolyte, while the operating voltage follows the order: Mg(NO3)2 > Al(NO3)3 > H2SO4. Electrical double-layer capacitance (versus pseudocapacitance) was dominant in all investigated electrolytes. The larger operating voltage in multivalent electrolytes is a consequence of the lower fraction of free water, which suppresses hydrogen evolution (when compared with H2SO4). The GCD was experimentally performed on the Al(NO3)3 electrolyte, which showed good cyclic stability, with an energy density of 22.3 Wh kg−1 at 65 W kg−1.",
journal = "Batteries",
title = "Deep Eutectic Solvent (DES) for In Situ Templating Carbon Material: Carbon Characterization and Application in Supercapacitors Containing Multivalent Ions",
volume = "8",
number = "12",
pages = "284",
doi = "10.3390/batteries8120284"
}

Zdolšek, N., Janković, B. Ž., Milović, M., Brković, S. M., Krstić, J. B., Perović, I. M.,& Vujković, M.. (2022). Deep Eutectic Solvent (DES) for In Situ Templating Carbon Material: Carbon Characterization and Application in Supercapacitors Containing Multivalent Ions. in Batteries, 8(12), 284.
https://doi.org/10.3390/batteries8120284

Zdolšek N, Janković BŽ, Milović M, Brković SM, Krstić JB, Perović IM, Vujković M. Deep Eutectic Solvent (DES) for In Situ Templating Carbon Material: Carbon Characterization and Application in Supercapacitors Containing Multivalent Ions. in Batteries. 2022;8(12):284.
doi:10.3390/batteries8120284 .

Zdolšek, Nikola, Janković, Bojan Ž., Milović, Miloš, Brković, Snežana M., Krstić, Jugoslav B., Perović, Ivana M., Vujković, Milica, "Deep Eutectic Solvent (DES) for In Situ Templating Carbon Material: Carbon Characterization and Application in Supercapacitors Containing Multivalent Ions" in Batteries, 8, no. 12 (2022):284,
https://doi.org/10.3390/batteries8120284 . .

TY  - JOUR
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Barudžija, Tanja
AU  - Kuzmanović, Maja
AU  - Vujković, Milica
AU  - Mitrić, Miodrag
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10577
AB  - Layered VOPO4·2H2O is synthesized by the sonochemical method. An X-ray powder diffraction is used to examine the crystal structure, while scanning electron microscopy is used to reveal the morphology of the powder. The crystal structure refinement is performed in the P4/nmmZ space group. The electrochemical intercalation of several cations (Na+, Mg2+, Ca2+, and Al3+) in saturated nitrate aqueous solutions is investigated. The most notable reversible activity is found for the cycling in aluminium nitrate aqueous solution in the voltage range from −0.1 to 0.8 V vs. SCE. During the preparation of the electrode, it is observed that the structure is prone to changes that have not been recorded in the literature so far. Namely, the use of conventional binder PVDF in NMP solution deteriorates the structure and lowers the powder’s crystallinity, while the use of Nafion solution causes the rearrangement of the atoms in a new crystal form that can be described in the monoclinic P21/c space group. Consequently, these structural changes affect electrochemical performances. The observed differences in electrochemical performances are a result of structural rearrangements.
T2  - Materials
T1  - The Influence of a Binder in a Composite Electrode: The Case Study of Vanadyl Phosphate in Aqueous Electrolyte
VL  - 15
IS  - 24
SP  - 9041
DO  - 10.3390/ma15249041
ER  - 

@article{
author = "Jugović, Dragana and Milović, Miloš and Barudžija, Tanja and Kuzmanović, Maja and Vujković, Milica and Mitrić, Miodrag",
year = "2022",
abstract = "Layered VOPO4·2H2O is synthesized by the sonochemical method. An X-ray powder diffraction is used to examine the crystal structure, while scanning electron microscopy is used to reveal the morphology of the powder. The crystal structure refinement is performed in the P4/nmmZ space group. The electrochemical intercalation of several cations (Na+, Mg2+, Ca2+, and Al3+) in saturated nitrate aqueous solutions is investigated. The most notable reversible activity is found for the cycling in aluminium nitrate aqueous solution in the voltage range from −0.1 to 0.8 V vs. SCE. During the preparation of the electrode, it is observed that the structure is prone to changes that have not been recorded in the literature so far. Namely, the use of conventional binder PVDF in NMP solution deteriorates the structure and lowers the powder’s crystallinity, while the use of Nafion solution causes the rearrangement of the atoms in a new crystal form that can be described in the monoclinic P21/c space group. Consequently, these structural changes affect electrochemical performances. The observed differences in electrochemical performances are a result of structural rearrangements.",
journal = "Materials",
title = "The Influence of a Binder in a Composite Electrode: The Case Study of Vanadyl Phosphate in Aqueous Electrolyte",
volume = "15",
number = "24",
pages = "9041",
doi = "10.3390/ma15249041"
}

Jugović, D., Milović, M., Barudžija, T., Kuzmanović, M., Vujković, M.,& Mitrić, M.. (2022). The Influence of a Binder in a Composite Electrode: The Case Study of Vanadyl Phosphate in Aqueous Electrolyte. in Materials, 15(24), 9041.
https://doi.org/10.3390/ma15249041

Jugović D, Milović M, Barudžija T, Kuzmanović M, Vujković M, Mitrić M. The Influence of a Binder in a Composite Electrode: The Case Study of Vanadyl Phosphate in Aqueous Electrolyte. in Materials. 2022;15(24):9041.
doi:10.3390/ma15249041 .

Jugović, Dragana, Milović, Miloš, Barudžija, Tanja, Kuzmanović, Maja, Vujković, Milica, Mitrić, Miodrag, "The Influence of a Binder in a Composite Electrode: The Case Study of Vanadyl Phosphate in Aqueous Electrolyte" in Materials, 15, no. 24 (2022):9041,
https://doi.org/10.3390/ma15249041 . .

TY  - JOUR
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Ivanovski, Valentin N.
AU  - Škapin, Srečo Davor
AU  - Barudžija, Tanja
AU  - Mitrić, Miodrag
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9921
AB  - Fayalite Fe2SiO4 is synthesized by the solid-state reaction without ball milling. The obtained powder is further structurally and electrochemically examined. Field emission scanning electron microscopy (FESEM) showed that microsized powder is obtained. X-ray powder diffraction (XRD) pattern is used for both phase identification and crystal structure Rietveld refinement. The structure is refined in the orthorhombic Pbnm space group. Mössbauer spectroscopy revealed traces of Fe3+ impurity. The bond valence mapping method is applied for the first time on Fe2SiO4 framework. It shows isolated, non-connected isosurfaces of constant E(Li), which further supports the assumptions of the conversion reactions. Electrochemical performances are investigated through galvanostatic cycling, cyclic voltammetry, and electrochemical impedance spectroscopy (EIS). Ex-situ XRD and Fourier transform infrared spectroscopy (FTIR) analyses are combined to monitor phase change after galvanostatic cycling and to reveal the working mechanism during electrochemical lithiation.
T2  - Journal of Electroceramics
T1  - Microsized fayalite Fe2SiO4 as anode material: the structure, electrochemical properties and working mechanism
DO  - 10.1007/s10832-021-00260-9
ER  - 

@article{
author = "Jugović, Dragana and Milović, Miloš and Ivanovski, Valentin N. and Škapin, Srečo Davor and Barudžija, Tanja and Mitrić, Miodrag",
year = "2021",
abstract = "Fayalite Fe2SiO4 is synthesized by the solid-state reaction without ball milling. The obtained powder is further structurally and electrochemically examined. Field emission scanning electron microscopy (FESEM) showed that microsized powder is obtained. X-ray powder diffraction (XRD) pattern is used for both phase identification and crystal structure Rietveld refinement. The structure is refined in the orthorhombic Pbnm space group. Mössbauer spectroscopy revealed traces of Fe3+ impurity. The bond valence mapping method is applied for the first time on Fe2SiO4 framework. It shows isolated, non-connected isosurfaces of constant E(Li), which further supports the assumptions of the conversion reactions. Electrochemical performances are investigated through galvanostatic cycling, cyclic voltammetry, and electrochemical impedance spectroscopy (EIS). Ex-situ XRD and Fourier transform infrared spectroscopy (FTIR) analyses are combined to monitor phase change after galvanostatic cycling and to reveal the working mechanism during electrochemical lithiation.",
journal = "Journal of Electroceramics",
title = "Microsized fayalite Fe2SiO4 as anode material: the structure, electrochemical properties and working mechanism",
doi = "10.1007/s10832-021-00260-9"
}

Jugović, D., Milović, M., Ivanovski, V. N., Škapin, S. D., Barudžija, T.,& Mitrić, M.. (2021). Microsized fayalite Fe2SiO4 as anode material: the structure, electrochemical properties and working mechanism. in Journal of Electroceramics.
https://doi.org/10.1007/s10832-021-00260-9

Jugović D, Milović M, Ivanovski VN, Škapin SD, Barudžija T, Mitrić M. Microsized fayalite Fe2SiO4 as anode material: the structure, electrochemical properties and working mechanism. in Journal of Electroceramics. 2021;.
doi:10.1007/s10832-021-00260-9 .

Jugović, Dragana, Milović, Miloš, Ivanovski, Valentin N., Škapin, Srečo Davor, Barudžija, Tanja, Mitrić, Miodrag, "Microsized fayalite Fe2SiO4 as anode material: the structure, electrochemical properties and working mechanism" in Journal of Electroceramics (2021),
https://doi.org/10.1007/s10832-021-00260-9 . .

TY  - CONF
AU  - Milicevic, N.
AU  - Novaković, Mirjana M.
AU  - Potočnik, Jelena
AU  - Rakočević, Lazar
AU  - Milović, Miloš
AU  - Abazović, Nadica
AU  - Pjević, Dejan J.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10908
AB  - One of the ways to increase efficiency of TiO2 thin films is by doping and coating with metals. Metaldoped TiO2 can reduce electron-hole recombination and increase hydroxyl radical concentration on the surface of TiO2, resulting in increase in the photocatalytic activity.Recent studies of J. Li at al.[1] and S. Y. Lee et al.[2] with Au doped TiO2 thin films showed that this systems have enhanced photocatalytic activity in comparison to pure TiO2 thin films. Also recent study[3] showed that Au doped TiO2 thin films are great candidates beside photocatalysis for enhancing visible light water splitting.TiO2 and TiO2:Au thin films were obtained by DC magnetron sputtering of Ti target with Ar ions in O2 atmosphere. In the case of doped TiO2 thin films with Au, three different systems were deposited for comparison (Fig.1). Post deposition annealing for 3h on 400 °C was carried out in nitrogen atmosphere. For structural analyses XRD, XPS, TEM and AFM methods were used, while for optical characterization UV/Vis method was used. The photo-degradation rate was measured using Rhodamine B which simulated pollutant. Analysis of the binding energy in the corresponding XPS spectra showed that deposited films have good stoichiometry of TiO2 and that concentration of Au on the surface can be controlled by sputtering and annealing conditions. Post deposition annealing caused diffusion of Au atoms through the layer as it was shown by TEM and EDS. Obtained TiO2 thin films before deposition were amorphous-like structured, and after annealing on 400 °C showed that anatase phase dominates in the structure. All Au doped TiO2 thin films showed better photo-degradation rates then pure TiO2.
PB  - Belgrade : Institute of Physics Belgrade
C3  - PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade
T1  - Influencing on optical properties of buffered TiO2-Au thin film systems by deposition and annealing parameters
SP  - 89
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10908
ER  - 

@conference{
author = "Milicevic, N. and Novaković, Mirjana M. and Potočnik, Jelena and Rakočević, Lazar and Milović, Miloš and Abazović, Nadica and Pjević, Dejan J.",
year = "2021",
abstract = "One of the ways to increase efficiency of TiO2 thin films is by doping and coating with metals. Metaldoped TiO2 can reduce electron-hole recombination and increase hydroxyl radical concentration on the surface of TiO2, resulting in increase in the photocatalytic activity.Recent studies of J. Li at al.[1] and S. Y. Lee et al.[2] with Au doped TiO2 thin films showed that this systems have enhanced photocatalytic activity in comparison to pure TiO2 thin films. Also recent study[3] showed that Au doped TiO2 thin films are great candidates beside photocatalysis for enhancing visible light water splitting.TiO2 and TiO2:Au thin films were obtained by DC magnetron sputtering of Ti target with Ar ions in O2 atmosphere. In the case of doped TiO2 thin films with Au, three different systems were deposited for comparison (Fig.1). Post deposition annealing for 3h on 400 °C was carried out in nitrogen atmosphere. For structural analyses XRD, XPS, TEM and AFM methods were used, while for optical characterization UV/Vis method was used. The photo-degradation rate was measured using Rhodamine B which simulated pollutant. Analysis of the binding energy in the corresponding XPS spectra showed that deposited films have good stoichiometry of TiO2 and that concentration of Au on the surface can be controlled by sputtering and annealing conditions. Post deposition annealing caused diffusion of Au atoms through the layer as it was shown by TEM and EDS. Obtained TiO2 thin films before deposition were amorphous-like structured, and after annealing on 400 °C showed that anatase phase dominates in the structure. All Au doped TiO2 thin films showed better photo-degradation rates then pure TiO2.",
publisher = "Belgrade : Institute of Physics Belgrade",
journal = "PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade",
title = "Influencing on optical properties of buffered TiO2-Au thin film systems by deposition and annealing parameters",
pages = "89",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10908"
}

Milicevic, N., Novaković, M. M., Potočnik, J., Rakočević, L., Milović, M., Abazović, N.,& Pjević, D. J.. (2021). Influencing on optical properties of buffered TiO2-Au thin film systems by deposition and annealing parameters. in PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade
Belgrade : Institute of Physics Belgrade., 89.
https://hdl.handle.net/21.15107/rcub_vinar_10908

Milicevic N, Novaković MM, Potočnik J, Rakočević L, Milović M, Abazović N, Pjević DJ. Influencing on optical properties of buffered TiO2-Au thin film systems by deposition and annealing parameters. in PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade. 2021;:89.
https://hdl.handle.net/21.15107/rcub_vinar_10908 .

Milicevic, N., Novaković, Mirjana M., Potočnik, Jelena, Rakočević, Lazar, Milović, Miloš, Abazović, Nadica, Pjević, Dejan J., "Influencing on optical properties of buffered TiO2-Au thin film systems by deposition and annealing parameters" in PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade (2021):89,
https://hdl.handle.net/21.15107/rcub_vinar_10908 .

TY  - JOUR
AU  - Milović, Miloš
AU  - Vujković, Milica
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9148
AB  - Electrochemical and structural properties of LiV2O5 cathode were investigated. Obtained by solid state reaction at high temperature the material crystallized as gamma polymorph phase, γ-LiV2O5. The gamma structure provides two crystallographic sites to accommodate lithium ions, Li1 and Li2 position. Lithium insertion at these two sites occurs at two respective voltages versus lithium metal: ~3.6 V (Li1) and ~2.4 V (Li2). Intercalation at Li1 position is reversible in both organic and aqueous electrolyte and provides stable cycling performance at the high voltage. On the contrary, sluggish insertion/removal of Li+ at Li2 sites causes unstable performance and significant storage capacity fade at lower voltages. Lithium diffusion 3d landscape was determined by bond valence calculations applied on the γ-LiV2O5 phase, as well as on the metastable phases of γ′-V2O5 and ζ-Li2V2O5 that exist at high and low voltages respectively. The model was proposed based on inactivity of Li2 position of the metastable ζ-Li2V2O5 phase which provides explanation for the observed storage capacity loss at low voltages. © 2021 Elsevier Ltd and Techna Group S.r.l.
T2  - Ceramics International
T1  - Electrochemical and structural study on cycling performance of γ-LiV2O5 cathode
VL  - 47
IS  - 12
SP  - 17077
EP  - 17083
DO  - 10.1016/j.ceramint.2021.03.016
ER  - 

@article{
author = "Milović, Miloš and Vujković, Milica and Jugović, Dragana and Mitrić, Miodrag",
year = "2021",
abstract = "Electrochemical and structural properties of LiV2O5 cathode were investigated. Obtained by solid state reaction at high temperature the material crystallized as gamma polymorph phase, γ-LiV2O5. The gamma structure provides two crystallographic sites to accommodate lithium ions, Li1 and Li2 position. Lithium insertion at these two sites occurs at two respective voltages versus lithium metal: ~3.6 V (Li1) and ~2.4 V (Li2). Intercalation at Li1 position is reversible in both organic and aqueous electrolyte and provides stable cycling performance at the high voltage. On the contrary, sluggish insertion/removal of Li+ at Li2 sites causes unstable performance and significant storage capacity fade at lower voltages. Lithium diffusion 3d landscape was determined by bond valence calculations applied on the γ-LiV2O5 phase, as well as on the metastable phases of γ′-V2O5 and ζ-Li2V2O5 that exist at high and low voltages respectively. The model was proposed based on inactivity of Li2 position of the metastable ζ-Li2V2O5 phase which provides explanation for the observed storage capacity loss at low voltages. © 2021 Elsevier Ltd and Techna Group S.r.l.",
journal = "Ceramics International",
title = "Electrochemical and structural study on cycling performance of γ-LiV2O5 cathode",
volume = "47",
number = "12",
pages = "17077-17083",
doi = "10.1016/j.ceramint.2021.03.016"
}

Milović, M., Vujković, M., Jugović, D.,& Mitrić, M.. (2021). Electrochemical and structural study on cycling performance of γ-LiV2O5 cathode. in Ceramics International, 47(12), 17077-17083.
https://doi.org/10.1016/j.ceramint.2021.03.016

Milović M, Vujković M, Jugović D, Mitrić M. Electrochemical and structural study on cycling performance of γ-LiV2O5 cathode. in Ceramics International. 2021;47(12):17077-17083.
doi:10.1016/j.ceramint.2021.03.016 .

Milović, Miloš, Vujković, Milica, Jugović, Dragana, Mitrić, Miodrag, "Electrochemical and structural study on cycling performance of γ-LiV2O5 cathode" in Ceramics International, 47, no. 12 (2021):17077-17083,
https://doi.org/10.1016/j.ceramint.2021.03.016 . .

TY  - JOUR
AU  - Milović, Miloš
AU  - Jugović, Dragana
AU  - Vujković, Milica
AU  - Kuzmanović, Maja D.
AU  - Mraković, Ana Đ.
AU  - Mitrić, Miodrag
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9799
AB  - The polyanion cathodes for Li-ion batteries, namely LiFePO4, Li2FeP2O7 and Li2FeSiO4, were synthesized by very short high-temperature treatment (approximately several minutes) and subsequent quenching. Methylcellulose—a polymer with thermally driven water solubility—was used as the medium in which the precursor solutions were dispersed prior to high temperature treatment. The methylcellulose pyrolytically decomposes to carbon, thus producing the polyanion material/carbon composites of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C. The obtained powders have reduced crystallinity and significant microstructural characteristics: low crystallite size and notable microstrain. They exhibit stable electrochemical performances in both aqueous and organic electrolyte. The broadening of existing peaks in cyclic voltammetry and/or the emergence of new broad peaks was attributed to the presence of the amorphous phase in the samples. In galvanostatic charge–discharge tests, the materials provided high capacities at low current densities, while the highest rate performance was demonstrated by olivine-phosphate when compared to the other two materials.
T2  - Bulletin of Materials Science
T1  - Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix
VL  - 44
IS  - 2
SP  - 144
DO  - 10.1007/s12034-021-02397-3
ER  - 

@article{
author = "Milović, Miloš and Jugović, Dragana and Vujković, Milica and Kuzmanović, Maja D. and Mraković, Ana Đ. and Mitrić, Miodrag",
year = "2021",
abstract = "The polyanion cathodes for Li-ion batteries, namely LiFePO4, Li2FeP2O7 and Li2FeSiO4, were synthesized by very short high-temperature treatment (approximately several minutes) and subsequent quenching. Methylcellulose—a polymer with thermally driven water solubility—was used as the medium in which the precursor solutions were dispersed prior to high temperature treatment. The methylcellulose pyrolytically decomposes to carbon, thus producing the polyanion material/carbon composites of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C. The obtained powders have reduced crystallinity and significant microstructural characteristics: low crystallite size and notable microstrain. They exhibit stable electrochemical performances in both aqueous and organic electrolyte. The broadening of existing peaks in cyclic voltammetry and/or the emergence of new broad peaks was attributed to the presence of the amorphous phase in the samples. In galvanostatic charge–discharge tests, the materials provided high capacities at low current densities, while the highest rate performance was demonstrated by olivine-phosphate when compared to the other two materials.",
journal = "Bulletin of Materials Science",
title = "Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix",
volume = "44",
number = "2",
pages = "144",
doi = "10.1007/s12034-021-02397-3"
}

Milović, M., Jugović, D., Vujković, M., Kuzmanović, M. D., Mraković, A. Đ.,& Mitrić, M.. (2021). Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix. in Bulletin of Materials Science, 44(2), 144.
https://doi.org/10.1007/s12034-021-02397-3

Milović M, Jugović D, Vujković M, Kuzmanović MD, Mraković AĐ, Mitrić M. Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix. in Bulletin of Materials Science. 2021;44(2):144.
doi:10.1007/s12034-021-02397-3 .

Milović, Miloš, Jugović, Dragana, Vujković, Milica, Kuzmanović, Maja D., Mraković, Ana Đ., Mitrić, Miodrag, "Towards a green and cost-effective synthesis of polyanionic cathodes: comparative electrochemical behaviour of LiFePO4/C, Li2FeP2O7/C and Li2FeSiO4/C synthesized using methylcellulose matrix" in Bulletin of Materials Science, 44, no. 2 (2021):144,
https://doi.org/10.1007/s12034-021-02397-3 . .

TY  - CONF
AU  - Milović, Miloš
AU  - Vujković, Milica
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10842
AB  - For its capability to reversibly remove and insert lithium ions in the range of 0 ≤ x ≤ 1.4, gamma polymorph phase of Li x V2 O5 makes a solid candidate for cathode application in rechargeable batteries. Accommodation of lithium in concentrations higher than x ≈1.4 brings stability issues related to the transformation towards the metastable ζ phase, which significantly limits utilization of higher capacities the material could achieve. The presented investigation has been conducted on γ-LiV2 O5 powder obtained via solid state reaction at high temperatures. Structural refinement of the prepared γ phase has been carried out. Based on bond valence analysis of γ as well as of metastable γ’ and ζ phase, which occur at low and high lithium concentrations, respectively, mechanism is proposed for the observed capacity decrease. Electrochemical characteristics of γ-LiV2 O5 were investigated in both aqueous and organic electrolyte in the voltage range 4-2.3 V vs. Li + /Li in order to record performances of all three occurring phases, γ and both lithium poor γ’ (high voltage region) and lithium rich ζ (low voltage region). Ionic exchange of Li + with Mg2+ , Ca 2+ and Al 3+ in their respective aqueous electrolytes has been conducted to examine potential use of the material in the post- lithium rechargeable batteries.
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  - Structural and electrochemical properties of gamma LiV2O5 cathode
SP  - 84
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10842
ER  - 

@conference{
author = "Milović, Miloš and Vujković, Milica and Jugović, Dragana and Mitrić, Miodrag",
year = "2021",
abstract = "For its capability to reversibly remove and insert lithium ions in the range of 0 ≤ x ≤ 1.4, gamma polymorph phase of Li x V2 O5 makes a solid candidate for cathode application in rechargeable batteries. Accommodation of lithium in concentrations higher than x ≈1.4 brings stability issues related to the transformation towards the metastable ζ phase, which significantly limits utilization of higher capacities the material could achieve. The presented investigation has been conducted on γ-LiV2 O5 powder obtained via solid state reaction at high temperatures. Structural refinement of the prepared γ phase has been carried out. Based on bond valence analysis of γ as well as of metastable γ’ and ζ phase, which occur at low and high lithium concentrations, respectively, mechanism is proposed for the observed capacity decrease. Electrochemical characteristics of γ-LiV2 O5 were investigated in both aqueous and organic electrolyte in the voltage range 4-2.3 V vs. Li + /Li in order to record performances of all three occurring phases, γ and both lithium poor γ’ (high voltage region) and lithium rich ζ (low voltage region). Ionic exchange of Li + with Mg2+ , Ca 2+ and Al 3+ in their respective aqueous electrolytes has been conducted to examine potential use of the material in the post- lithium rechargeable batteries.",
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 = "Structural and electrochemical properties of gamma LiV2O5 cathode",
pages = "84",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10842"
}

Milović, M., Vujković, M., Jugović, D.,& Mitrić, M.. (2021). Structural and electrochemical properties of gamma LiV2O5 cathode. 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., 84.
https://hdl.handle.net/21.15107/rcub_vinar_10842

Milović M, Vujković M, Jugović D, Mitrić M. Structural and electrochemical properties of gamma LiV2O5 cathode. in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade. 2021;:84.
https://hdl.handle.net/21.15107/rcub_vinar_10842 .

Milović, Miloš, Vujković, Milica, Jugović, Dragana, Mitrić, Miodrag, "Structural and electrochemical properties of gamma LiV2O5 cathode" in Advanced Ceramics and Application : 9th Serbian Ceramic Society Conference : program and the book of abstracts; September 20-21, 2021; Belgrade (2021):84,
https://hdl.handle.net/21.15107/rcub_vinar_10842 .

TY  - JOUR
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Milović, Miloš
AU  - Ivanovski, Valentin N.
AU  - Škapin, Srečo Davor
AU  - Dojčinović, Biljana P.
AU  - Uskoković, Dragan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8047
AB  - A new method involving the homogeneous dispersion of precursor compounds inside a methylcellulose matrix is used for the synthesis of a composite powder of Li 2 FeP 2 O 7 and carbon. The properties of carbon-containing and carbon-free powders are studied by X-ray powder diffraction (XRD) including Rietveld refinement, Mössbauer spectroscopy, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), galvanostatic cycling, and electrochemical impedance spectroscopy (EIS). The structure of both powders is refined in a monoclinic framework (space group P2 1 /c). The structural refinement and Mössbauer spectroscopy reveal different degrees of partial occupancy of mixed-occupied sites by lithium. Electrochemical measurements show that the in situ formation of carbon improves capacity (90% of 1-electron theoretical capacity) through decreased charge-transfer resistance. © 2019 Elsevier B.V.
T2  - Journal of Alloys and Compounds
T1  - Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose
VL  - 786
SP  - 912
EP  - 919
DO  - 10.1016/j.jallcom.2019.01.392
ER  - 

@article{
author = "Jugović, Dragana and Mitrić, Miodrag and Milović, Miloš and Ivanovski, Valentin N. and Škapin, Srečo Davor and Dojčinović, Biljana P. and Uskoković, Dragan",
year = "2019",
abstract = "A new method involving the homogeneous dispersion of precursor compounds inside a methylcellulose matrix is used for the synthesis of a composite powder of Li 2 FeP 2 O 7 and carbon. The properties of carbon-containing and carbon-free powders are studied by X-ray powder diffraction (XRD) including Rietveld refinement, Mössbauer spectroscopy, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), galvanostatic cycling, and electrochemical impedance spectroscopy (EIS). The structure of both powders is refined in a monoclinic framework (space group P2 1 /c). The structural refinement and Mössbauer spectroscopy reveal different degrees of partial occupancy of mixed-occupied sites by lithium. Electrochemical measurements show that the in situ formation of carbon improves capacity (90% of 1-electron theoretical capacity) through decreased charge-transfer resistance. © 2019 Elsevier B.V.",
journal = "Journal of Alloys and Compounds",
title = "Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose",
volume = "786",
pages = "912-919",
doi = "10.1016/j.jallcom.2019.01.392"
}

Jugović, D., Mitrić, M., Milović, M., Ivanovski, V. N., Škapin, S. D., Dojčinović, B. P.,& Uskoković, D.. (2019). Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose. in Journal of Alloys and Compounds, 786, 912-919.
https://doi.org/10.1016/j.jallcom.2019.01.392

Jugović D, Mitrić M, Milović M, Ivanovski VN, Škapin SD, Dojčinović BP, Uskoković D. Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose. in Journal of Alloys and Compounds. 2019;786:912-919.
doi:10.1016/j.jallcom.2019.01.392 .

Jugović, Dragana, Mitrić, Miodrag, Milović, Miloš, Ivanovski, Valentin N., Škapin, Srečo Davor, Dojčinović, Biljana P., Uskoković, Dragan, "Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose" in Journal of Alloys and Compounds, 786 (2019):912-919,
https://doi.org/10.1016/j.jallcom.2019.01.392 . .

TY  - JOUR
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Milović, Miloš
AU  - Ivanovski, Valentin N.
AU  - Škapin, Srečo Davor
AU  - Dojčinović, Biljana P.
AU  - Uskoković, Dragan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8052
AB  - A new method involving the homogeneous dispersion of precursor compounds inside a methylcellulose matrix is used for the synthesis of a composite powder of Li 2 FeP 2 O 7 and carbon. The properties of carbon-containing and carbon-free powders are studied by X-ray powder diffraction (XRD) including Rietveld refinement, Mössbauer spectroscopy, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), galvanostatic cycling, and electrochemical impedance spectroscopy (EIS). The structure of both powders is refined in a monoclinic framework (space group P2 1 /c). The structural refinement and Mössbauer spectroscopy reveal different degrees of partial occupancy of mixed-occupied sites by lithium. Electrochemical measurements show that the in situ formation of carbon improves capacity (90% of 1-electron theoretical capacity) through decreased charge-transfer resistance. © 2019 Elsevier B.V.
T2  - Journal of Alloys and Compounds
T1  - Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose
VL  - 786
SP  - 912
EP  - 919
DO  - 10.1016/j.jallcom.2019.01.392
ER  - 

@article{
author = "Jugović, Dragana and Mitrić, Miodrag and Milović, Miloš and Ivanovski, Valentin N. and Škapin, Srečo Davor and Dojčinović, Biljana P. and Uskoković, Dragan",
year = "2019",
abstract = "A new method involving the homogeneous dispersion of precursor compounds inside a methylcellulose matrix is used for the synthesis of a composite powder of Li 2 FeP 2 O 7 and carbon. The properties of carbon-containing and carbon-free powders are studied by X-ray powder diffraction (XRD) including Rietveld refinement, Mössbauer spectroscopy, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), galvanostatic cycling, and electrochemical impedance spectroscopy (EIS). The structure of both powders is refined in a monoclinic framework (space group P2 1 /c). The structural refinement and Mössbauer spectroscopy reveal different degrees of partial occupancy of mixed-occupied sites by lithium. Electrochemical measurements show that the in situ formation of carbon improves capacity (90% of 1-electron theoretical capacity) through decreased charge-transfer resistance. © 2019 Elsevier B.V.",
journal = "Journal of Alloys and Compounds",
title = "Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose",
volume = "786",
pages = "912-919",
doi = "10.1016/j.jallcom.2019.01.392"
}

Jugović, D., Mitrić, M., Milović, M., Ivanovski, V. N., Škapin, S. D., Dojčinović, B. P.,& Uskoković, D.. (2019). Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose. in Journal of Alloys and Compounds, 786, 912-919.
https://doi.org/10.1016/j.jallcom.2019.01.392

Jugović D, Mitrić M, Milović M, Ivanovski VN, Škapin SD, Dojčinović BP, Uskoković D. Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose. in Journal of Alloys and Compounds. 2019;786:912-919.
doi:10.1016/j.jallcom.2019.01.392 .

Jugović, Dragana, Mitrić, Miodrag, Milović, Miloš, Ivanovski, Valentin N., Škapin, Srečo Davor, Dojčinović, Biljana P., Uskoković, Dragan, "Structural and electrochemical properties of the Li2FeP2O7/C composite prepared using soluble methylcellulose" in Journal of Alloys and Compounds, 786 (2019):912-919,
https://doi.org/10.1016/j.jallcom.2019.01.392 . .

TY  - JOUR
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Popović, Maja
AU  - Kusigerski, Vladan
AU  - Škapin, Srečo Davor
AU  - Rakočević, Zlatko Lj.
AU  - Mitrić, Miodrag
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0925838818336375
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7897
AB  - The main goal of this research has been to investigate for the first time the effects of fluorination on the crystal structure, magnetic, and electrochemical properties of the P2-type NaxCoO2 powder. Sodium cobalt oxide with a P2-type structure is synthesized by a modified solid-state reaction consisting of alternating processes of rapid heating up to 750 °C and rapid cooling to the room temperature. The obtained powder is fluorinated using a gas-solid reaction with NH4HF2 as fluorinating agent. Fluorination causes a decrease of sodium content in the parent phase with the concurrent formation of the minor phases of Na2CO3 and NaF. The structure of NaxCoO2 in both powders is refined in P63/mmc space group. The results of the Rietveld refinement combined with the findings from the XPS measurements confirm the Na0.76CoO2 and Na0.44CoO1.96F0.04 stoichiometries for the pristine and fluorinated powders, respectively, which indicates that 4 at.% of fluorine ions per formula unit are incorporated in the structure. Preliminary electrochemical investigations have revealed an improved charge/discharge performance. The influence of fluorination on morphology and magnetic properties has also been examined. © 2018 Elsevier B.V.
T2  - Journal of Alloys and Compounds
T1  - Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder
VL  - 774
SP  - 30
EP  - 37
DO  - 10.1016/j.jallcom.2018.09.372
ER  - 

@article{
author = "Jugović, Dragana and Milović, Miloš and Popović, Maja and Kusigerski, Vladan and Škapin, Srečo Davor and Rakočević, Zlatko Lj. and Mitrić, Miodrag",
year = "2019",
abstract = "The main goal of this research has been to investigate for the first time the effects of fluorination on the crystal structure, magnetic, and electrochemical properties of the P2-type NaxCoO2 powder. Sodium cobalt oxide with a P2-type structure is synthesized by a modified solid-state reaction consisting of alternating processes of rapid heating up to 750 °C and rapid cooling to the room temperature. The obtained powder is fluorinated using a gas-solid reaction with NH4HF2 as fluorinating agent. Fluorination causes a decrease of sodium content in the parent phase with the concurrent formation of the minor phases of Na2CO3 and NaF. The structure of NaxCoO2 in both powders is refined in P63/mmc space group. The results of the Rietveld refinement combined with the findings from the XPS measurements confirm the Na0.76CoO2 and Na0.44CoO1.96F0.04 stoichiometries for the pristine and fluorinated powders, respectively, which indicates that 4 at.% of fluorine ions per formula unit are incorporated in the structure. Preliminary electrochemical investigations have revealed an improved charge/discharge performance. The influence of fluorination on morphology and magnetic properties has also been examined. © 2018 Elsevier B.V.",
journal = "Journal of Alloys and Compounds",
title = "Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder",
volume = "774",
pages = "30-37",
doi = "10.1016/j.jallcom.2018.09.372"
}

Jugović, D., Milović, M., Popović, M., Kusigerski, V., Škapin, S. D., Rakočević, Z. Lj.,& Mitrić, M.. (2019). Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder. in Journal of Alloys and Compounds, 774, 30-37.
https://doi.org/10.1016/j.jallcom.2018.09.372

Jugović D, Milović M, Popović M, Kusigerski V, Škapin SD, Rakočević ZL, Mitrić M. Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder. in Journal of Alloys and Compounds. 2019;774:30-37.
doi:10.1016/j.jallcom.2018.09.372 .

Jugović, Dragana, Milović, Miloš, Popović, Maja, Kusigerski, Vladan, Škapin, Srečo Davor, Rakočević, Zlatko Lj., Mitrić, Miodrag, "Effects of fluorination on the structure, magnetic and electrochemical properties of the P2-type NaxCoO2 powder" in Journal of Alloys and Compounds, 774 (2019):30-37,
https://doi.org/10.1016/j.jallcom.2018.09.372 . .

TY  - JOUR
AU  - Milović, Miloš
AU  - Vasić Anićijević, Dragana D.
AU  - Jugović, Dragana
AU  - Anićijević, Vladan J.
AU  - Veselinović, Ljiljana M.
AU  - Mitrić, Miodrag
AU  - Uskoković, Dragan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8017
AB  - Li2FeSiO4 material, which was prepared by a solid state method, crystallized as monoclinic P21/n polymorph. X-ray diffraction analysis with Rietveld structural refinement indicates specific occupation of Li2 crystallographic site by Fe2+ cation in the amount of 6 atom percents as a result of an antisite defect formation. The exclusive occupation of Li2 position, out of two crystallographic positions Li1 and Li2, by Fe2+ was discussed in relation to the differences that exist in the crystal environment of these positions and further investigated by DFT calculations. It was confirmed that Fe-Li2 substitution is energetically favorable compared to both Fe-Li1 substitution and the pristine crystal. In addition, changes of lattice geometry upon antisite defect formation were analyzed, and the obtained result is discussed in light of various factors (electronic, geometrical and enthropic) that contribute to the overall stability of the system. © 2018 Elsevier Masson SAS
T2  - Solid State Sciences
T1  - On the presence of antisite defect in monoclinic Li2FeSiO4 – A combined X-Ray diffraction and DFT study
VL  - 87
SP  - 81
EP  - 86
DO  - 10.1016/j.solidstatesciences.2018.11.008
ER  - 

@article{
author = "Milović, Miloš and Vasić Anićijević, Dragana D. and Jugović, Dragana and Anićijević, Vladan J. and Veselinović, Ljiljana M. and Mitrić, Miodrag and Uskoković, Dragan",
year = "2019",
abstract = "Li2FeSiO4 material, which was prepared by a solid state method, crystallized as monoclinic P21/n polymorph. X-ray diffraction analysis with Rietveld structural refinement indicates specific occupation of Li2 crystallographic site by Fe2+ cation in the amount of 6 atom percents as a result of an antisite defect formation. The exclusive occupation of Li2 position, out of two crystallographic positions Li1 and Li2, by Fe2+ was discussed in relation to the differences that exist in the crystal environment of these positions and further investigated by DFT calculations. It was confirmed that Fe-Li2 substitution is energetically favorable compared to both Fe-Li1 substitution and the pristine crystal. In addition, changes of lattice geometry upon antisite defect formation were analyzed, and the obtained result is discussed in light of various factors (electronic, geometrical and enthropic) that contribute to the overall stability of the system. © 2018 Elsevier Masson SAS",
journal = "Solid State Sciences",
title = "On the presence of antisite defect in monoclinic Li2FeSiO4 – A combined X-Ray diffraction and DFT study",
volume = "87",
pages = "81-86",
doi = "10.1016/j.solidstatesciences.2018.11.008"
}

Milović, M., Vasić Anićijević, D. D., Jugović, D., Anićijević, V. J., Veselinović, L. M., Mitrić, M.,& Uskoković, D.. (2019). On the presence of antisite defect in monoclinic Li2FeSiO4 – A combined X-Ray diffraction and DFT study. in Solid State Sciences, 87, 81-86.
https://doi.org/10.1016/j.solidstatesciences.2018.11.008

Milović M, Vasić Anićijević DD, Jugović D, Anićijević VJ, Veselinović LM, Mitrić M, Uskoković D. On the presence of antisite defect in monoclinic Li2FeSiO4 – A combined X-Ray diffraction and DFT study. in Solid State Sciences. 2019;87:81-86.
doi:10.1016/j.solidstatesciences.2018.11.008 .

Milović, Miloš, Vasić Anićijević, Dragana D., Jugović, Dragana, Anićijević, Vladan J., Veselinović, Ljiljana M., Mitrić, Miodrag, Uskoković, Dragan, "On the presence of antisite defect in monoclinic Li2FeSiO4 – A combined X-Ray diffraction and DFT study" in Solid State Sciences, 87 (2019):81-86,
https://doi.org/10.1016/j.solidstatesciences.2018.11.008 . .

TY  - JOUR
AU  - Milović, Miloš
AU  - Vasić Anićijević, Dragana D.
AU  - Jugović, Dragana
AU  - Anićijević, Vladan J.
AU  - Veselinović, Ljiljana M.
AU  - Mitrić, Miodrag
AU  - Uskoković, Dragan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8021
AB  - Li2FeSiO4 material, which was prepared by a solid state method, crystallized as monoclinic P21/n polymorph. X-ray diffraction analysis with Rietveld structural refinement indicates specific occupation of Li2 crystallographic site by Fe2+ cation in the amount of 6 atom percents as a result of an antisite defect formation. The exclusive occupation of Li2 position, out of two crystallographic positions Li1 and Li2, by Fe2+ was discussed in relation to the differences that exist in the crystal environment of these positions and further investigated by DFT calculations. It was confirmed that Fe-Li2 substitution is energetically favorable compared to both Fe-Li1 substitution and the pristine crystal. In addition, changes of lattice geometry upon antisite defect formation were analyzed, and the obtained result is discussed in light of various factors (electronic, geometrical and enthropic) that contribute to the overall stability of the system. © 2018 Elsevier Masson SAS
T2  - Solid State Sciences
T1  - On the presence of antisite defect in monoclinic Li2FeSiO4 – A combined X-Ray diffraction and DFT study
VL  - 87
SP  - 81
EP  - 86
DO  - 10.1016/j.solidstatesciences.2018.11.008
ER  - 

@article{
author = "Milović, Miloš and Vasić Anićijević, Dragana D. and Jugović, Dragana and Anićijević, Vladan J. and Veselinović, Ljiljana M. and Mitrić, Miodrag and Uskoković, Dragan",
year = "2019",
abstract = "Li2FeSiO4 material, which was prepared by a solid state method, crystallized as monoclinic P21/n polymorph. X-ray diffraction analysis with Rietveld structural refinement indicates specific occupation of Li2 crystallographic site by Fe2+ cation in the amount of 6 atom percents as a result of an antisite defect formation. The exclusive occupation of Li2 position, out of two crystallographic positions Li1 and Li2, by Fe2+ was discussed in relation to the differences that exist in the crystal environment of these positions and further investigated by DFT calculations. It was confirmed that Fe-Li2 substitution is energetically favorable compared to both Fe-Li1 substitution and the pristine crystal. In addition, changes of lattice geometry upon antisite defect formation were analyzed, and the obtained result is discussed in light of various factors (electronic, geometrical and enthropic) that contribute to the overall stability of the system. © 2018 Elsevier Masson SAS",
journal = "Solid State Sciences",
title = "On the presence of antisite defect in monoclinic Li2FeSiO4 – A combined X-Ray diffraction and DFT study",
volume = "87",
pages = "81-86",
doi = "10.1016/j.solidstatesciences.2018.11.008"
}

Milović, M., Vasić Anićijević, D. D., Jugović, D., Anićijević, V. J., Veselinović, L. M., Mitrić, M.,& Uskoković, D.. (2019). On the presence of antisite defect in monoclinic Li2FeSiO4 – A combined X-Ray diffraction and DFT study. in Solid State Sciences, 87, 81-86.
https://doi.org/10.1016/j.solidstatesciences.2018.11.008

Milović M, Vasić Anićijević DD, Jugović D, Anićijević VJ, Veselinović LM, Mitrić M, Uskoković D. On the presence of antisite defect in monoclinic Li2FeSiO4 – A combined X-Ray diffraction and DFT study. in Solid State Sciences. 2019;87:81-86.
doi:10.1016/j.solidstatesciences.2018.11.008 .

Milović, Miloš, Vasić Anićijević, Dragana D., Jugović, Dragana, Anićijević, Vladan J., Veselinović, Ljiljana M., Mitrić, Miodrag, Uskoković, Dragan, "On the presence of antisite defect in monoclinic Li2FeSiO4 – A combined X-Ray diffraction and DFT study" in Solid State Sciences, 87 (2019):81-86,
https://doi.org/10.1016/j.solidstatesciences.2018.11.008 . .

TY  - CONF
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Mitrić, Miodrag
AU  - Cvjetićanin, Nikola
AU  - Škapin, Srečo Davor
AU  - Uskoković, Dragan
PY  - 2017
UR  - http://dais.sanu.ac.rs/123456789/15439
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7560
AB  - The search for alternative cathode materials for Li-ion batteries has recently emerged Li2FeP2O7 pyrophosphate as a new potential competitor for LiFePO4 material. It has a possibility to offer good rate capability, lithium ion diffusivity and volumetric energy density, and is a material of high safety and low raw materials cost. In addition, there is the probability of releasing the second Li-atom at a higher redox potential of 5.2 V, where the theoretical capacity would reach 220 mAhg−1. Optimized solid state reaction is used for the synthesis of pure Li2FeP2O7 powder and a composite Li2FeP2O7/C. The synthesized powders are characterized by X-ray powder diffraction, field emission scanning electron microscopy, FTIR spectroscopy, and galvanostatic charge/discharge cycling.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, September 4-8, 2017
T1  - Synthesis and characterization of Li2FeP2O7 cathode material
SP  - 46
EP  - 46
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7560
ER  - 

@conference{
editor = "Uskoković, Dragan, Radmilović, Velimir R.",
author = "Jugović, Dragana and Milović, Miloš and Mitrić, Miodrag and Cvjetićanin, Nikola and Škapin, Srečo Davor and Uskoković, Dragan",
year = "2017",
abstract = "The search for alternative cathode materials for Li-ion batteries has recently emerged Li2FeP2O7 pyrophosphate as a new potential competitor for LiFePO4 material. It has a possibility to offer good rate capability, lithium ion diffusivity and volumetric energy density, and is a material of high safety and low raw materials cost. In addition, there is the probability of releasing the second Li-atom at a higher redox potential of 5.2 V, where the theoretical capacity would reach 220 mAhg−1. Optimized solid state reaction is used for the synthesis of pure Li2FeP2O7 powder and a composite Li2FeP2O7/C. The synthesized powders are characterized by X-ray powder diffraction, field emission scanning electron microscopy, FTIR spectroscopy, and galvanostatic charge/discharge cycling.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, September 4-8, 2017",
title = "Synthesis and characterization of Li2FeP2O7 cathode material",
pages = "46-46",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7560"
}

Uskoković, D., Radmilović, V. R., Jugović, D., Milović, M., Mitrić, M., Cvjetićanin, N., Škapin, S. D.,& Uskoković, D.. (2017). Synthesis and characterization of Li2FeP2O7 cathode material. in Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, September 4-8, 2017
Belgrade : Materials Research Society of Serbia., 46-46.
https://hdl.handle.net/21.15107/rcub_vinar_7560

Uskoković D, Radmilović VR, Jugović D, Milović M, Mitrić M, Cvjetićanin N, Škapin SD, Uskoković D. Synthesis and characterization of Li2FeP2O7 cathode material. in Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, September 4-8, 2017. 2017;:46-46.
https://hdl.handle.net/21.15107/rcub_vinar_7560 .

Uskoković, Dragan, Radmilović, Velimir R., Jugović, Dragana, Milović, Miloš, Mitrić, Miodrag, Cvjetićanin, Nikola, Škapin, Srečo Davor, Uskoković, Dragan, "Synthesis and characterization of Li2FeP2O7 cathode material" in Programme and The Book of Abstracts / Nineteenth Annual Conference YUCOMAT 2017, Herceg Novi, September 4-8, 2017 (2017):46-46,
https://hdl.handle.net/21.15107/rcub_vinar_7560 .

TY  - CONF
AU  - Aleksić, Jelena
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Mitrić, Miodrag
AU  - Uskoković, Dragan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7564
AB  - Sodium transition-metal oxides with general formula NaxTMO2 (TM = Co, Mn, Ni, etc.) have attracted a lot of interest in the battery community due to low cost of sodium in contrast to lithium. Sodium cobalt oxide is the most attractive of them for cathode application because of its conductive, thermic and magnetic characteristics. In this study, sodium cobalt oxide, NaxCoO2 , was synthesized by simple method which involves solid state reaction in air, at temperature of 900 ºC; starting materials were Na2CO3 and Co3O4 in stoichiometric amounts. Additionally, fluorination of the synthesized sodium cobalt oxide was carried out in vacuum at 200ºC; NH4HF2 was used as a fluorine source. Then, structural and microstructural properties of the obtained powders were examined.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia
T1  - Synthesis and structural properties of sodium cobalt oxide
SP  - 37
EP  - 37
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7564
ER  - 

@conference{
editor = "Marković, Smilja",
author = "Aleksić, Jelena and Jugović, Dragana and Milović, Miloš and Mitrić, Miodrag and Uskoković, Dragan",
year = "2017",
abstract = "Sodium transition-metal oxides with general formula NaxTMO2 (TM = Co, Mn, Ni, etc.) have attracted a lot of interest in the battery community due to low cost of sodium in contrast to lithium. Sodium cobalt oxide is the most attractive of them for cathode application because of its conductive, thermic and magnetic characteristics. In this study, sodium cobalt oxide, NaxCoO2 , was synthesized by simple method which involves solid state reaction in air, at temperature of 900 ºC; starting materials were Na2CO3 and Co3O4 in stoichiometric amounts. Additionally, fluorination of the synthesized sodium cobalt oxide was carried out in vacuum at 200ºC; NH4HF2 was used as a fluorine source. Then, structural and microstructural properties of the obtained powders were examined.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia",
title = "Synthesis and structural properties of sodium cobalt oxide",
pages = "37-37",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7564"
}

Marković, S., Aleksić, J., Jugović, D., Milović, M., Mitrić, M.,& Uskoković, D.. (2017). Synthesis and structural properties of sodium cobalt oxide. in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 37-37.
https://hdl.handle.net/21.15107/rcub_vinar_7564

Marković S, Aleksić J, Jugović D, Milović M, Mitrić M, Uskoković D. Synthesis and structural properties of sodium cobalt oxide. in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia. 2017;:37-37.
https://hdl.handle.net/21.15107/rcub_vinar_7564 .

Marković, Smilja, Aleksić, Jelena, Jugović, Dragana, Milović, Miloš, Mitrić, Miodrag, Uskoković, Dragan, "Synthesis and structural properties of sodium cobalt oxide" in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia (2017):37-37,
https://hdl.handle.net/21.15107/rcub_vinar_7564 .

TY  - JOUR
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Milović, Miloš
AU  - Cvjetićanin, Nikola
AU  - Jokić, Bojan M.
AU  - Umićević, Ana
AU  - Uskoković, Dragan
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1401
AB  - Low intrinsic electronic conductivity is the main disadvantage of LiFePO4 when used as a cathode material in lithium ion batteries. The paper offers experimental proofs of the theoretical prediction that fluorine doping of LiFePO4 can enhance its electrical conductivity. The LiFePO4 and fluorine-doped LiFePO4 olivine type, carbon free powders are synthesized and examined. The crystal structure refinements in the Pnma space group reveal that doping with fluorine ions preserves the olivine structure, while reducing both the lattice parameters and the antisite defect, and increasing the crystallite size. A small amount of incorporated fluorine enhances the electrical conductivity from 4.6x10(-7) S cm(-1) to 2.3x10(-6) S cm(-1) and has a positive impact on the electrochemical performance. Several spectroscopy techniques (Mossbauer, FTIR, and Raman) reveal differences between the two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements.
T2  - Ceramics International
T1  - The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder
VL  - 43
IS  - 3
SP  - 3224
EP  - 3230
DO  - 10.1016/j.ceramint.2016.11.149
ER  - 

@article{
author = "Jugović, Dragana and Mitrić, Miodrag and Milović, Miloš and Cvjetićanin, Nikola and Jokić, Bojan M. and Umićević, Ana and Uskoković, Dragan",
year = "2017",
abstract = "Low intrinsic electronic conductivity is the main disadvantage of LiFePO4 when used as a cathode material in lithium ion batteries. The paper offers experimental proofs of the theoretical prediction that fluorine doping of LiFePO4 can enhance its electrical conductivity. The LiFePO4 and fluorine-doped LiFePO4 olivine type, carbon free powders are synthesized and examined. The crystal structure refinements in the Pnma space group reveal that doping with fluorine ions preserves the olivine structure, while reducing both the lattice parameters and the antisite defect, and increasing the crystallite size. A small amount of incorporated fluorine enhances the electrical conductivity from 4.6x10(-7) S cm(-1) to 2.3x10(-6) S cm(-1) and has a positive impact on the electrochemical performance. Several spectroscopy techniques (Mossbauer, FTIR, and Raman) reveal differences between the two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements.",
journal = "Ceramics International",
title = "The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder",
volume = "43",
number = "3",
pages = "3224-3230",
doi = "10.1016/j.ceramint.2016.11.149"
}

Jugović, D., Mitrić, M., Milović, M., Cvjetićanin, N., Jokić, B. M., Umićević, A.,& Uskoković, D.. (2017). The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder. in Ceramics International, 43(3), 3224-3230.
https://doi.org/10.1016/j.ceramint.2016.11.149

Jugović D, Mitrić M, Milović M, Cvjetićanin N, Jokić BM, Umićević A, Uskoković D. The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder. in Ceramics International. 2017;43(3):3224-3230.
doi:10.1016/j.ceramint.2016.11.149 .

Jugović, Dragana, Mitrić, Miodrag, Milović, Miloš, Cvjetićanin, Nikola, Jokić, Bojan M., Umićević, Ana, Uskoković, Dragan, "The influence of fluorine doping on the structural and electrical properties of the LiFePO4 powder" in Ceramics International, 43, no. 3 (2017):3224-3230,
https://doi.org/10.1016/j.ceramint.2016.11.149 . .

TY  - CONF
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Milović, Miloš
AU  - Cvjetićanin, Nikola
AU  - Jokić, Bojan M.
AU  - Umićević, Ana
AU  - Uskoković, Dragan
PY  - 2016
UR  - http://dais.sanu.ac.rs/123456789/898
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7555
AB  - Low intrinsic electronic conductivity is the main weakness of LiFePO4 for the use as cathode material in lithium ion batteries. Here is presented an experimental proof of the theoretical prediction that fluorine doping of LiFePO4 can enhance its electrical conductivity. LiFePO4 and fluorine-doped LiFePO4 olivine type, carbon-free powders are synthesized and examined. Crystal structure refinements in the space group Pnma reveal that doping with fluorine ions preserves olivine structure with the reduction of both the lattice parameters and the antisite defect, and an increase of a crystallite size. A small amount of incorporated fluorine enhances electrical conductivity from 4.6 × 10-7 Scm-1 to 2.3 × 10-6 Scm-1 and has positive impact on the electrochemical performances. Several spectroscopy techniques (Mössbauer, FTIR, and Raman) disclose differences between two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements.
PB  - Belgrade : Materials Research Society of Serbia
C3  - YUCOMAT 2016 : 18th Annual Conference YUCOMAT 2016 : programme and the book of abstracts; September 5-10, Herceg Novi
T1  - The influence of fluorine doping on the structural and the electrical properties of LiFePO4 powder
SP  - 35
EP  - 35
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7555
ER  - 

@conference{
author = "Jugović, Dragana and Mitrić, Miodrag and Milović, Miloš and Cvjetićanin, Nikola and Jokić, Bojan M. and Umićević, Ana and Uskoković, Dragan",
year = "2016",
abstract = "Low intrinsic electronic conductivity is the main weakness of LiFePO4 for the use as cathode material in lithium ion batteries. Here is presented an experimental proof of the theoretical prediction that fluorine doping of LiFePO4 can enhance its electrical conductivity. LiFePO4 and fluorine-doped LiFePO4 olivine type, carbon-free powders are synthesized and examined. Crystal structure refinements in the space group Pnma reveal that doping with fluorine ions preserves olivine structure with the reduction of both the lattice parameters and the antisite defect, and an increase of a crystallite size. A small amount of incorporated fluorine enhances electrical conductivity from 4.6 × 10-7 Scm-1 to 2.3 × 10-6 Scm-1 and has positive impact on the electrochemical performances. Several spectroscopy techniques (Mössbauer, FTIR, and Raman) disclose differences between two powders and additionally support the findings of both the Rietveld refinement and the conductivity measurements.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "YUCOMAT 2016 : 18th Annual Conference YUCOMAT 2016 : programme and the book of abstracts; September 5-10, Herceg Novi",
title = "The influence of fluorine doping on the structural and the electrical properties of LiFePO4 powder",
pages = "35-35",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7555"
}

Jugović, D., Mitrić, M., Milović, M., Cvjetićanin, N., Jokić, B. M., Umićević, A.,& Uskoković, D.. (2016). The influence of fluorine doping on the structural and the electrical properties of LiFePO4 powder. in YUCOMAT 2016 : 18th Annual Conference YUCOMAT 2016 : programme and the book of abstracts; September 5-10, Herceg Novi
Belgrade : Materials Research Society of Serbia., 35-35.
https://hdl.handle.net/21.15107/rcub_vinar_7555

Jugović D, Mitrić M, Milović M, Cvjetićanin N, Jokić BM, Umićević A, Uskoković D. The influence of fluorine doping on the structural and the electrical properties of LiFePO4 powder. in YUCOMAT 2016 : 18th Annual Conference YUCOMAT 2016 : programme and the book of abstracts; September 5-10, Herceg Novi. 2016;:35-35.
https://hdl.handle.net/21.15107/rcub_vinar_7555 .

Jugović, Dragana, Mitrić, Miodrag, Milović, Miloš, Cvjetićanin, Nikola, Jokić, Bojan M., Umićević, Ana, Uskoković, Dragan, "The influence of fluorine doping on the structural and the electrical properties of LiFePO4 powder" in YUCOMAT 2016 : 18th Annual Conference YUCOMAT 2016 : programme and the book of abstracts; September 5-10, Herceg Novi (2016):35-35,
https://hdl.handle.net/21.15107/rcub_vinar_7555 .

TY  - JOUR
AU  - Milović, Miloš
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Dominko, Robert
AU  - Stojković-Simatović, Ivana
AU  - Jokić, Bojan M.
AU  - Uskoković, Dragan
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/909
AB  - The key parameters related to cathode materials for commercial use are a high specific capacity, good cycling stability, capacity retention at high current rates, as well as the simplicity of the synthesis process. This study presents a facile synthesis of a composite cathode material, Li2FeSiO4 with carbon, under extreme conditions: rapid heating, short dwell at 750 A degrees C and subsequent quenching. The water-soluble polymer methylcellulose was used both as an excellent dispersing agent and a carbon source that pyrolytically degrades to carbon, thereby enabling the homogeneous deployment of the precursor compounds and the control of the Li2FeSiO4 particle growth from the earliest stage of processing. X-ray powder diffraction reveals the formation of Li2FeSiO4 nanocrystallites with a monoclinic structure in the P2(1)/n space group (#14). The composites electrochemical performance as a cathode material in Li-ion batteries was examined. The influence of the amount of methylcellulose on the microstructural, morphological, conductive, and electrochemical properties of the obtained powders has been discussed. It has been shown that the overall electrochemical performance is improved with an increase of carbon content, through both the decrease of the mean particle diameter and the increase of electrical conductivity.
PB  - Springer
T2  - Cellulose
T1  - The use of methylcellulose for the synthesis of Li2FeSiO4/C composites
VL  - 23
IS  - 1
SP  - 239
EP  - 246
DO  - 10.1007/s10570-015-0806-9
ER  - 

@article{
author = "Milović, Miloš and Jugović, Dragana and Mitrić, Miodrag and Dominko, Robert and Stojković-Simatović, Ivana and Jokić, Bojan M. and Uskoković, Dragan",
year = "2016",
abstract = "The key parameters related to cathode materials for commercial use are a high specific capacity, good cycling stability, capacity retention at high current rates, as well as the simplicity of the synthesis process. This study presents a facile synthesis of a composite cathode material, Li2FeSiO4 with carbon, under extreme conditions: rapid heating, short dwell at 750 A degrees C and subsequent quenching. The water-soluble polymer methylcellulose was used both as an excellent dispersing agent and a carbon source that pyrolytically degrades to carbon, thereby enabling the homogeneous deployment of the precursor compounds and the control of the Li2FeSiO4 particle growth from the earliest stage of processing. X-ray powder diffraction reveals the formation of Li2FeSiO4 nanocrystallites with a monoclinic structure in the P2(1)/n space group (#14). The composites electrochemical performance as a cathode material in Li-ion batteries was examined. The influence of the amount of methylcellulose on the microstructural, morphological, conductive, and electrochemical properties of the obtained powders has been discussed. It has been shown that the overall electrochemical performance is improved with an increase of carbon content, through both the decrease of the mean particle diameter and the increase of electrical conductivity.",
publisher = "Springer",
journal = "Cellulose",
title = "The use of methylcellulose for the synthesis of Li2FeSiO4/C composites",
volume = "23",
number = "1",
pages = "239-246",
doi = "10.1007/s10570-015-0806-9"
}

Milović, M., Jugović, D., Mitrić, M., Dominko, R., Stojković-Simatović, I., Jokić, B. M.,& Uskoković, D.. (2016). The use of methylcellulose for the synthesis of Li2FeSiO4/C composites. in Cellulose
Springer., 23(1), 239-246.
https://doi.org/10.1007/s10570-015-0806-9

Milović M, Jugović D, Mitrić M, Dominko R, Stojković-Simatović I, Jokić BM, Uskoković D. The use of methylcellulose for the synthesis of Li2FeSiO4/C composites. in Cellulose. 2016;23(1):239-246.
doi:10.1007/s10570-015-0806-9 .

Milović, Miloš, Jugović, Dragana, Mitrić, Miodrag, Dominko, Robert, Stojković-Simatović, Ivana, Jokić, Bojan M., Uskoković, Dragan, "The use of methylcellulose for the synthesis of Li2FeSiO4/C composites" in Cellulose, 23, no. 1 (2016):239-246,
https://doi.org/10.1007/s10570-015-0806-9 . .

TY  - CONF
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Mitrić, Miodrag
AU  - Cvjetićanin, Nikola
AU  - Avdeev, Max
AU  - Jokić, Bojan M.
AU  - Uskoković, Dragan
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7543
AB  - The room temperature Na-ion secondary battery has been under focus lately due to its feasibility to compete against the already well-established Li-ion secondary battery. Transition metal oxides of general formula NaxMO2 have been investigated as potential cathode materials for sodium batteries. Layered NaxCoO2 is synthesized via solid-state method at 900 ºC in air atmosphere. Fluorine doping of the as-prepared powder is established by the use of ammonium hydrogen difluoride (NH4HF2) as a fluorinating agent. The fluorination takes place only at low temperature (200 ºC), while the treatment at higher temperatures (≥ 400 ºC) facilitates the formation of NaF. It is shown that various and controllable amounts of fluorine can be successfully incorporated into the structure. Finally, the effects of fluorine doping on both structural and electrochemical properties are examined.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Seventeenth Annual Conference YUCOMAT 2015 : Programme and The Book of Abstracts
T1  - Fluorine Doping of Layered NaxCoO2 Structure
SP  - 12
EP  - 12
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7543
ER  - 

@conference{
author = "Jugović, Dragana and Milović, Miloš and Mitrić, Miodrag and Cvjetićanin, Nikola and Avdeev, Max and Jokić, Bojan M. and Uskoković, Dragan",
year = "2015",
abstract = "The room temperature Na-ion secondary battery has been under focus lately due to its feasibility to compete against the already well-established Li-ion secondary battery. Transition metal oxides of general formula NaxMO2 have been investigated as potential cathode materials for sodium batteries. Layered NaxCoO2 is synthesized via solid-state method at 900 ºC in air atmosphere. Fluorine doping of the as-prepared powder is established by the use of ammonium hydrogen difluoride (NH4HF2) as a fluorinating agent. The fluorination takes place only at low temperature (200 ºC), while the treatment at higher temperatures (≥ 400 ºC) facilitates the formation of NaF. It is shown that various and controllable amounts of fluorine can be successfully incorporated into the structure. Finally, the effects of fluorine doping on both structural and electrochemical properties are examined.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Seventeenth Annual Conference YUCOMAT 2015 : Programme and The Book of Abstracts",
title = "Fluorine Doping of Layered NaxCoO2 Structure",
pages = "12-12",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7543"
}

Jugović, D., Milović, M., Mitrić, M., Cvjetićanin, N., Avdeev, M., Jokić, B. M.,& Uskoković, D.. (2015). Fluorine Doping of Layered NaxCoO2 Structure. in Seventeenth Annual Conference YUCOMAT 2015 : Programme and The Book of Abstracts
Belgrade : Materials Research Society of Serbia., 12-12.
https://hdl.handle.net/21.15107/rcub_vinar_7543

Jugović D, Milović M, Mitrić M, Cvjetićanin N, Avdeev M, Jokić BM, Uskoković D. Fluorine Doping of Layered NaxCoO2 Structure. in Seventeenth Annual Conference YUCOMAT 2015 : Programme and The Book of Abstracts. 2015;:12-12.
https://hdl.handle.net/21.15107/rcub_vinar_7543 .

Jugović, Dragana, Milović, Miloš, Mitrić, Miodrag, Cvjetićanin, Nikola, Avdeev, Max, Jokić, Bojan M., Uskoković, Dragan, "Fluorine Doping of Layered NaxCoO2 Structure" in Seventeenth Annual Conference YUCOMAT 2015 : Programme and The Book of Abstracts (2015):12-12,
https://hdl.handle.net/21.15107/rcub_vinar_7543 .

TY  - JOUR
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Ivanovski, Valentin N.
AU  - Avdeev, Max
AU  - Dominko, Robert
AU  - Jokić, Bojan M.
AU  - Uskoković, Dragan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6045
AB  - A composite powder Li2FeSiO4/C is synthesized through a solid state reaction at 750 C. The Rietveld crystal structure refinement is done in the monoclinic P2(1)/n space group. It is found that the crystal structure is prone to antisite defect where small part of iron ion occupies exclusively Li(2) crystallographic position, of two different lithium tetrahedral positions (Li(1) and Li(2)). This finding is also confirmed by Mossbauer spectroscopy study: the sextet evidenced in the Mossbauer spectrum is assigned to the iron ions positioned at the Li(2) sites. A bond-valence energy landscape calculation is used to predict the conduction pathways of lithium ions. The calculations suggest that Li conductivity is two-dimensional in the (101) plane. Upon galvanostatic cyclings the structure starts to rearrange to inverse,311 polymorph. (C) 2014 Elsevier B.V. All rights reserved.
T2  - Journal of Power Sources
T1  - Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy
VL  - 265
SP  - 75
EP  - 80
DO  - 10.1016/j.jpowsour.2014.04.121
ER  - 

@article{
author = "Jugović, Dragana and Milović, Miloš and Ivanovski, Valentin N. and Avdeev, Max and Dominko, Robert and Jokić, Bojan M. and Uskoković, Dragan",
year = "2014",
abstract = "A composite powder Li2FeSiO4/C is synthesized through a solid state reaction at 750 C. The Rietveld crystal structure refinement is done in the monoclinic P2(1)/n space group. It is found that the crystal structure is prone to antisite defect where small part of iron ion occupies exclusively Li(2) crystallographic position, of two different lithium tetrahedral positions (Li(1) and Li(2)). This finding is also confirmed by Mossbauer spectroscopy study: the sextet evidenced in the Mossbauer spectrum is assigned to the iron ions positioned at the Li(2) sites. A bond-valence energy landscape calculation is used to predict the conduction pathways of lithium ions. The calculations suggest that Li conductivity is two-dimensional in the (101) plane. Upon galvanostatic cyclings the structure starts to rearrange to inverse,311 polymorph. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Journal of Power Sources",
title = "Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy",
volume = "265",
pages = "75-80",
doi = "10.1016/j.jpowsour.2014.04.121"
}

Jugović, D., Milović, M., Ivanovski, V. N., Avdeev, M., Dominko, R., Jokić, B. M.,& Uskoković, D.. (2014). Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy. in Journal of Power Sources, 265, 75-80.
https://doi.org/10.1016/j.jpowsour.2014.04.121

Jugović D, Milović M, Ivanovski VN, Avdeev M, Dominko R, Jokić BM, Uskoković D. Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy. in Journal of Power Sources. 2014;265:75-80.
doi:10.1016/j.jpowsour.2014.04.121 .

Jugović, Dragana, Milović, Miloš, Ivanovski, Valentin N., Avdeev, Max, Dominko, Robert, Jokić, Bojan M., Uskoković, Dragan, "Structural study of monoclinic Li2FeSiO4 by X-ray diffraction and Mossbauer spectroscopy" in Journal of Power Sources, 265 (2014):75-80,
https://doi.org/10.1016/j.jpowsour.2014.04.121 . .

TY  - CONF
AU  - Jugović, Dragana
AU  - Milović, Miloš
AU  - Mitrić, Miodrag
AU  - Ivanovski, Valentin N.
AU  - Avdeev, Max
AU  - Jokić, Bojan M.
AU  - Dominko, Robert
AU  - Uskoković, Dragan
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/590
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7487
AB  - Monoclinic Li2FeSiO4 that crystallizes in P21/n space group was investigated as a potential cathode material for lithium-ion batteries. A combined X-ray diffraction and Mössbauer spectroscopy study was used for the structural investigation. It was found that the crystal structure is prone to an “antisite” defect, the one in which the Fe ion and the Li ion exchange places. This finding was also confirmed by the Mössbauer spectroscopy. In order to obtain composites of Li2FeSiO4 and carbon, several synthesis techniques that use different carbon sources were involved. Electrochemical performances were investigated through galvanostatic charge/discharge tests. Discharge curve profile did not reflect a two-phase intercalation reaction (no obvious voltage plateau) due to the low conductivity at room temperature.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts
T1  - Li2FeSiO4 cathode material: the structure and electrochemical performances
SP  - 6
EP  - 6
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7487
ER  - 

@conference{
author = "Jugović, Dragana and Milović, Miloš and Mitrić, Miodrag and Ivanovski, Valentin N. and Avdeev, Max and Jokić, Bojan M. and Dominko, Robert and Uskoković, Dragan",
year = "2014",
abstract = "Monoclinic Li2FeSiO4 that crystallizes in P21/n space group was investigated as a potential cathode material for lithium-ion batteries. A combined X-ray diffraction and Mössbauer spectroscopy study was used for the structural investigation. It was found that the crystal structure is prone to an “antisite” defect, the one in which the Fe ion and the Li ion exchange places. This finding was also confirmed by the Mössbauer spectroscopy. In order to obtain composites of Li2FeSiO4 and carbon, several synthesis techniques that use different carbon sources were involved. Electrochemical performances were investigated through galvanostatic charge/discharge tests. Discharge curve profile did not reflect a two-phase intercalation reaction (no obvious voltage plateau) due to the low conductivity at room temperature.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts",
title = "Li2FeSiO4 cathode material: the structure and electrochemical performances",
pages = "6-6",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7487"
}

Jugović, D., Milović, M., Mitrić, M., Ivanovski, V. N., Avdeev, M., Jokić, B. M., Dominko, R.,& Uskoković, D.. (2014). Li2FeSiO4 cathode material: the structure and electrochemical performances. in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 6-6.
https://hdl.handle.net/21.15107/rcub_vinar_7487

Jugović D, Milović M, Mitrić M, Ivanovski VN, Avdeev M, Jokić BM, Dominko R, Uskoković D. Li2FeSiO4 cathode material: the structure and electrochemical performances. in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts. 2014;:6-6.
https://hdl.handle.net/21.15107/rcub_vinar_7487 .

Jugović, Dragana, Milović, Miloš, Mitrić, Miodrag, Ivanovski, Valentin N., Avdeev, Max, Jokić, Bojan M., Dominko, Robert, Uskoković, Dragan, "Li2FeSiO4 cathode material: the structure and electrochemical performances" in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts (2014):6-6,
https://hdl.handle.net/21.15107/rcub_vinar_7487 .

TY  - CONF
AU  - Milović, Miloš
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Cvjetićanin, Nikola
AU  - Mraković, Ana Đ.
AU  - Senna, Mamoru
AU  - Uskoković, Dragan
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/582
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7485
AB  - Mechanical activation can be regarded as a multi-step process with changes in the energetic parameters and the amount of accumulated energy of solids in each step. Here we report the influence of mechanochemical processing on the synthesis of LiFePO4 powders. The different precursor powders were milled in a planetary mill by using WC vials and 5 mm balls made of the same material. A slightly reductive atmosphere (Ar + 5%H2) was used in both mechanical stressing and thermal annealing so as to prevent the oxidation of iron. All synthesis steps were followed by an X-ray diffractometry and FT-IR spectroscopy. The results were compared with previous findings of precipitated and annealed powder, without mechanochemical treatment.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts
T1  - Synthesis of LiFePO4 by mechanical stressing and thermal annealing
SP  - 62
EP  - 62
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7485
ER  - 

@conference{
author = "Milović, Miloš and Jugović, Dragana and Mitrić, Miodrag and Cvjetićanin, Nikola and Mraković, Ana Đ. and Senna, Mamoru and Uskoković, Dragan",
year = "2014",
abstract = "Mechanical activation can be regarded as a multi-step process with changes in the energetic parameters and the amount of accumulated energy of solids in each step. Here we report the influence of mechanochemical processing on the synthesis of LiFePO4 powders. The different precursor powders were milled in a planetary mill by using WC vials and 5 mm balls made of the same material. A slightly reductive atmosphere (Ar + 5%H2) was used in both mechanical stressing and thermal annealing so as to prevent the oxidation of iron. All synthesis steps were followed by an X-ray diffractometry and FT-IR spectroscopy. The results were compared with previous findings of precipitated and annealed powder, without mechanochemical treatment.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts",
title = "Synthesis of LiFePO4 by mechanical stressing and thermal annealing",
pages = "62-62",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7485"
}

Milović, M., Jugović, D., Mitrić, M., Cvjetićanin, N., Mraković, A. Đ., Senna, M.,& Uskoković, D.. (2014). Synthesis of LiFePO4 by mechanical stressing and thermal annealing. in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 62-62.
https://hdl.handle.net/21.15107/rcub_vinar_7485

Milović M, Jugović D, Mitrić M, Cvjetićanin N, Mraković AĐ, Senna M, Uskoković D. Synthesis of LiFePO4 by mechanical stressing and thermal annealing. in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts. 2014;:62-62.
https://hdl.handle.net/21.15107/rcub_vinar_7485 .

Milović, Miloš, Jugović, Dragana, Mitrić, Miodrag, Cvjetićanin, Nikola, Mraković, Ana Đ., Senna, Mamoru, Uskoković, Dragan, "Synthesis of LiFePO4 by mechanical stressing and thermal annealing" in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts (2014):62-62,
https://hdl.handle.net/21.15107/rcub_vinar_7485 .

TY  - CONF
AU  - Milović, Miloš
AU  - Jugović, Dragana
AU  - Mitrić, Miodrag
AU  - Jokić, Bojan M.
AU  - Dominko, Robert
AU  - Uskoković, Dragan
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9201
AB  - In this study, monoclinic polymorph of Li2FeSiO4 (space group P21/n) in
composite with carbon has been synthesized by sol-gel method followed by
rapid heating, short high-temperature delay, and subsequent quenching.
Three composites were made with 3, 9 and 14 weight percent of the carbon.
The effect of the carbon on structure, morphology and electrochemical
performance of the prepared composites has been examined by X-ray
diffractometry, scanning electron microscopy and galvanostatic cycling.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
T1  - The Li2FeSiO4 / c composites obtained from cellulose gel
VL  - H-03-O
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9201
ER  - 

@conference{
author = "Milović, Miloš and Jugović, Dragana and Mitrić, Miodrag and Jokić, Bojan M. and Dominko, Robert and Uskoković, Dragan",
year = "2014",
abstract = "In this study, monoclinic polymorph of Li2FeSiO4 (space group P21/n) in
composite with carbon has been synthesized by sol-gel method followed by
rapid heating, short high-temperature delay, and subsequent quenching.
Three composites were made with 3, 9 and 14 weight percent of the carbon.
The effect of the carbon on structure, morphology and electrochemical
performance of the prepared composites has been examined by X-ray
diffractometry, scanning electron microscopy and galvanostatic cycling.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry",
title = "The Li2FeSiO4 / c composites obtained from cellulose gel",
volume = "H-03-O",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9201"
}

Milović, M., Jugović, D., Mitrić, M., Jokić, B. M., Dominko, R.,& Uskoković, D.. (2014). The Li2FeSiO4 / c composites obtained from cellulose gel. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry
Society of Physical Chemists of Serbia., H-03-O.
https://hdl.handle.net/21.15107/rcub_vinar_9201

Milović M, Jugović D, Mitrić M, Jokić BM, Dominko R, Uskoković D. The Li2FeSiO4 / c composites obtained from cellulose gel. in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2014;H-03-O.
https://hdl.handle.net/21.15107/rcub_vinar_9201 .

Milović, Miloš, Jugović, Dragana, Mitrić, Miodrag, Jokić, Bojan M., Dominko, Robert, Uskoković, Dragan, "The Li2FeSiO4 / c composites obtained from cellulose gel" in Physical chemistry 2014: 12th International Conference on Fundamental and Applied Aspects of Physical Chemistry, H-03-O (2014),
https://hdl.handle.net/21.15107/rcub_vinar_9201 .