TY  - CONF
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
AU  - Đurđić, Slađana
AU  - Stanković, Dalibor
AU  - Kremenović, Aleksandar
AU  - Pavlović, Vladimir
AU  - Jeremić, Dejan
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7845
AB  - A modified reverse co-precipitation method using glacial acetic acid to synthesize α-Bi2O3
structures is presented. The formation of an almost pure rod-like α- Bi2O3 microstructure was
confirmed by X-ray powder diffraction and scanning and transmission electron microscopy
analyses. A glassy carbon paste (GCP) electrode was modified with the obtained material in aim
of development of an electrochemical sensor for acetaminophen (APAP) detection using
differential pulse voltammetry (DPV). Cyclic voltammetry revealed better performance of the
GCP@Bi2O3 electrode in comparison to the bare GCP. The prepared GCP@Bi2O3 sensor
successfully detected APAP in the linear concentration range from 0.05 to 12.00 μM, with the
limit of quantification (LOQ) and the limit of detection (LOD) of 36 nM and 10 nM, respectively.
Furthermore, the designed sensor showed pronounced precision, repeatability, and selectivity
toward APAP detection. The GCP@Bi2O3 sensor and associated DPV method demonstrated high
accuracy, precision, and practical utility for real-time APAP quantification in pharmaceutical
products like Caffetin®. A comparison of declared and measured APAP levels revealed excellent
recovery rates, with minimal impact from other formulation components.
PB  - Belgrade: Serbian Ceramic Society
C3  - Program and the Book of Abstracts, Serbian Ceramic Society Conference Advanced Ceramics and Application XII, September 18-20, 2024, Belgrade, Serbia
T1  - Rod-Shaped α-Bi2O3: A Novel Electrode Material for Electrochemical Sensing of Acetaminophen in Pharmaceutical Formulations
SP  - 63
EP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_cer_7845
ER  - 

@conference{
author = "Šuljagić, Marija and Anđelković, Ljubica and Đurđić, Slađana and Stanković, Dalibor and Kremenović, Aleksandar and Pavlović, Vladimir and Jeremić, Dejan",
year = "2024",
abstract = "A modified reverse co-precipitation method using glacial acetic acid to synthesize α-Bi2O3
structures is presented. The formation of an almost pure rod-like α- Bi2O3 microstructure was
confirmed by X-ray powder diffraction and scanning and transmission electron microscopy
analyses. A glassy carbon paste (GCP) electrode was modified with the obtained material in aim
of development of an electrochemical sensor for acetaminophen (APAP) detection using
differential pulse voltammetry (DPV). Cyclic voltammetry revealed better performance of the
GCP@Bi2O3 electrode in comparison to the bare GCP. The prepared GCP@Bi2O3 sensor
successfully detected APAP in the linear concentration range from 0.05 to 12.00 μM, with the
limit of quantification (LOQ) and the limit of detection (LOD) of 36 nM and 10 nM, respectively.
Furthermore, the designed sensor showed pronounced precision, repeatability, and selectivity
toward APAP detection. The GCP@Bi2O3 sensor and associated DPV method demonstrated high
accuracy, precision, and practical utility for real-time APAP quantification in pharmaceutical
products like Caffetin®. A comparison of declared and measured APAP levels revealed excellent
recovery rates, with minimal impact from other formulation components.",
publisher = "Belgrade: Serbian Ceramic Society",
journal = "Program and the Book of Abstracts, Serbian Ceramic Society Conference Advanced Ceramics and Application XII, September 18-20, 2024, Belgrade, Serbia",
title = "Rod-Shaped α-Bi2O3: A Novel Electrode Material for Electrochemical Sensing of Acetaminophen in Pharmaceutical Formulations",
pages = "63-64",
url = "https://hdl.handle.net/21.15107/rcub_cer_7845"
}

Šuljagić, M., Anđelković, L., Đurđić, S., Stanković, D., Kremenović, A., Pavlović, V.,& Jeremić, D.. (2024). Rod-Shaped α-Bi2O3: A Novel Electrode Material for Electrochemical Sensing of Acetaminophen in Pharmaceutical Formulations. in Program and the Book of Abstracts, Serbian Ceramic Society Conference Advanced Ceramics and Application XII, September 18-20, 2024, Belgrade, Serbia
Belgrade: Serbian Ceramic Society., 63-64.
https://hdl.handle.net/21.15107/rcub_cer_7845

Šuljagić M, Anđelković L, Đurđić S, Stanković D, Kremenović A, Pavlović V, Jeremić D. Rod-Shaped α-Bi2O3: A Novel Electrode Material for Electrochemical Sensing of Acetaminophen in Pharmaceutical Formulations. in Program and the Book of Abstracts, Serbian Ceramic Society Conference Advanced Ceramics and Application XII, September 18-20, 2024, Belgrade, Serbia. 2024;:63-64.
https://hdl.handle.net/21.15107/rcub_cer_7845 .

Šuljagić, Marija, Anđelković, Ljubica, Đurđić, Slađana, Stanković, Dalibor, Kremenović, Aleksandar, Pavlović, Vladimir, Jeremić, Dejan, "Rod-Shaped α-Bi2O3: A Novel Electrode Material for Electrochemical Sensing of Acetaminophen in Pharmaceutical Formulations" in Program and the Book of Abstracts, Serbian Ceramic Society Conference Advanced Ceramics and Application XII, September 18-20, 2024, Belgrade, Serbia (2024):63-64,
https://hdl.handle.net/21.15107/rcub_cer_7845 .

TY  - JOUR
AU  - Anđelković, Ljubica
AU  - Šuljagić, Marija
AU  - Pavlović, Vladimir
AU  - Mirković, Miljana
AU  - Vrbica, Boško
AU  - Novaković, Irena
AU  - Stanković, Dalibor
AU  - Kremenović, Aleksandar
AU  - Uskoković, Vuk
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7552
AB  - Metals and metal oxides have subpar antibacterial activities compared to those of small-molecule antibiotics, yet there are hopes that with proper compositional and structural adjustments this gap might be bridged. In this study, titanium dioxide (TiO2) nanoparticles were mechanically activated and combined with particulate silver through simple reduction process elicited by UV irradiation and assisted with the ultrasound. The resulting powders in various combinations (Ag vs. no Ag, activated vs. non-activated) were characterized using a range of experimental techniques and assessed for their antibacterial activities. The preparation procedure presented in this work prevails over the disadvantages of many chemical routes, most critically by avoiding the use of toxic substances. The mechanical activation did not reduce the particle size or crystallinity of TiO2 nor did it consistently alter the bandgap, yet it enabled the doubling of the amount of silver incorporable into the material. Further, while both mechanical activation and the addition of silver in the amount not exceeding 0.5 wt% produced barely detectable structural changes in the material, they both augmented its antibacterial activity. The precursor TiO2 powder produced no inhibition zone against any of the four bacterial species tested, while the mechanical activation of TiO2 led to the formation of distinct inhibition zones against each of the four bacterial species tested. The addition of silver to activated TiO2 further widened the inhibition zones and it also imparted the antibacterial activity to non-activated TiO2. The boost in the antibacterial activity achieved by the short mechanical activation was of a similar magnitude as the boost obtained after the addition of silver. The antibacterial activity was not different for different species when no silver was added to the system. However, with the addition of silver, species selectivity was obtained, as the composites were more effective against the two Gram-negative species (Escherichia coli and Klebsiella pneumoniae) than against the two Gram-positive ones (Staphylococcus aureus and Bacillus subtilis). The antibacterial activity increased with the addition of silver in the broth assay, but it was mediocre compared to that detected in the agar assay, attesting to the poor dispersability of the powders and their best performance when the bacterial cells migrate to the composite surface than vice versa. The findings of this study give hope that with appropriate microstructural or compositional alterations, the antibacterial activity of metal oxide powders and inorganic materials in general can be made comparable to that of small-molecule antibiotics.
PB  - Elsevier
T2  - Colloids and Surfaces A: Physicochemical and Engineering Aspects
T1  - Mechanical activation and silver supplementation as determinants of the antibacterial activity of titanium dioxide nanoparticles
VL  - 691
SP  - 133890
DO  - 10.1016/j.colsurfa.2024.133890
ER  - 

@article{
author = "Anđelković, Ljubica and Šuljagić, Marija and Pavlović, Vladimir and Mirković, Miljana and Vrbica, Boško and Novaković, Irena and Stanković, Dalibor and Kremenović, Aleksandar and Uskoković, Vuk",
year = "2024",
abstract = "Metals and metal oxides have subpar antibacterial activities compared to those of small-molecule antibiotics, yet there are hopes that with proper compositional and structural adjustments this gap might be bridged. In this study, titanium dioxide (TiO2) nanoparticles were mechanically activated and combined with particulate silver through simple reduction process elicited by UV irradiation and assisted with the ultrasound. The resulting powders in various combinations (Ag vs. no Ag, activated vs. non-activated) were characterized using a range of experimental techniques and assessed for their antibacterial activities. The preparation procedure presented in this work prevails over the disadvantages of many chemical routes, most critically by avoiding the use of toxic substances. The mechanical activation did not reduce the particle size or crystallinity of TiO2 nor did it consistently alter the bandgap, yet it enabled the doubling of the amount of silver incorporable into the material. Further, while both mechanical activation and the addition of silver in the amount not exceeding 0.5 wt% produced barely detectable structural changes in the material, they both augmented its antibacterial activity. The precursor TiO2 powder produced no inhibition zone against any of the four bacterial species tested, while the mechanical activation of TiO2 led to the formation of distinct inhibition zones against each of the four bacterial species tested. The addition of silver to activated TiO2 further widened the inhibition zones and it also imparted the antibacterial activity to non-activated TiO2. The boost in the antibacterial activity achieved by the short mechanical activation was of a similar magnitude as the boost obtained after the addition of silver. The antibacterial activity was not different for different species when no silver was added to the system. However, with the addition of silver, species selectivity was obtained, as the composites were more effective against the two Gram-negative species (Escherichia coli and Klebsiella pneumoniae) than against the two Gram-positive ones (Staphylococcus aureus and Bacillus subtilis). The antibacterial activity increased with the addition of silver in the broth assay, but it was mediocre compared to that detected in the agar assay, attesting to the poor dispersability of the powders and their best performance when the bacterial cells migrate to the composite surface than vice versa. The findings of this study give hope that with appropriate microstructural or compositional alterations, the antibacterial activity of metal oxide powders and inorganic materials in general can be made comparable to that of small-molecule antibiotics.",
publisher = "Elsevier",
journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",
title = "Mechanical activation and silver supplementation as determinants of the antibacterial activity of titanium dioxide nanoparticles",
volume = "691",
pages = "133890",
doi = "10.1016/j.colsurfa.2024.133890"
}

Anđelković, L., Šuljagić, M., Pavlović, V., Mirković, M., Vrbica, B., Novaković, I., Stanković, D., Kremenović, A.,& Uskoković, V.. (2024). Mechanical activation and silver supplementation as determinants of the antibacterial activity of titanium dioxide nanoparticles. in Colloids and Surfaces A: Physicochemical and Engineering Aspects
Elsevier., 691, 133890.
https://doi.org/10.1016/j.colsurfa.2024.133890

Anđelković L, Šuljagić M, Pavlović V, Mirković M, Vrbica B, Novaković I, Stanković D, Kremenović A, Uskoković V. Mechanical activation and silver supplementation as determinants of the antibacterial activity of titanium dioxide nanoparticles. in Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2024;691:133890.
doi:10.1016/j.colsurfa.2024.133890 .

Anđelković, Ljubica, Šuljagić, Marija, Pavlović, Vladimir, Mirković, Miljana, Vrbica, Boško, Novaković, Irena, Stanković, Dalibor, Kremenović, Aleksandar, Uskoković, Vuk, "Mechanical activation and silver supplementation as determinants of the antibacterial activity of titanium dioxide nanoparticles" in Colloids and Surfaces A: Physicochemical and Engineering Aspects, 691 (2024):133890,
https://doi.org/10.1016/j.colsurfa.2024.133890 . .

TY  - JOUR
AU  - Anđelković, Ljubica
AU  - Đurđić, Slađana
AU  - Stanković, Dalibor
AU  - Kremenović, Aleksandar
AU  - Pavlović, Vladimir
AU  - Jeremić, Dejan
AU  - Šuljagić, Marija
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7824
AB  - This study employed a novel synthetic approach involving a modified reverse co-precipitation method utilizing glacial acetic acid to synthesize α-Bi2O3. X-ray powder diffraction and scanning and transmission electron microscopy analyses revealed the formation of a rod-like α-Bi2O3 microstructure. The prepared material was utilized to modify a glassy carbon paste (GCP) electrode for the development of an electrochemical sensor for acetaminophen (APAP) detection using differential pulse voltammetry (DPV). Cyclic voltammetry studies revealed that the GCP@Bi2O3 electrode exhibited enhanced electrochemical properties compared to the bare GCP. The designed GCP@Bi2O3 sensor detected APAP in the linear concentration range from 0.05 to 12.00 µM, with LOQ and LOD of 36 nM and 10 nM, respectively. Additionally, the developed sensor demonstrated sufficient precision, repeatability, and selectivity toward APAP detection. The recovery values between the declared and found APAP content in a pharmaceutical formulation (Caffetin®) displayed the advantageous accuracy, precision, and applicability of the GCP@Bi2O3 sensor and the developed DPV method for real-time APAP detection in pharmaceuticals, with minimal interference from the matrix effect.
PB  - MDPI
T2  - Chemosensors
T1  - Electrochemical Detection of Acetaminophen in Pharmaceuticals Using Rod-Shaped α-Bi2O3 Prepared via Reverse Co-Precipitation
VL  - 12
IS  - 7
SP  - 122
DO  - 10.3390/chemosensors12070122
ER  - 

@article{
author = "Anđelković, Ljubica and Đurđić, Slađana and Stanković, Dalibor and Kremenović, Aleksandar and Pavlović, Vladimir and Jeremić, Dejan and Šuljagić, Marija",
year = "2024",
abstract = "This study employed a novel synthetic approach involving a modified reverse co-precipitation method utilizing glacial acetic acid to synthesize α-Bi2O3. X-ray powder diffraction and scanning and transmission electron microscopy analyses revealed the formation of a rod-like α-Bi2O3 microstructure. The prepared material was utilized to modify a glassy carbon paste (GCP) electrode for the development of an electrochemical sensor for acetaminophen (APAP) detection using differential pulse voltammetry (DPV). Cyclic voltammetry studies revealed that the GCP@Bi2O3 electrode exhibited enhanced electrochemical properties compared to the bare GCP. The designed GCP@Bi2O3 sensor detected APAP in the linear concentration range from 0.05 to 12.00 µM, with LOQ and LOD of 36 nM and 10 nM, respectively. Additionally, the developed sensor demonstrated sufficient precision, repeatability, and selectivity toward APAP detection. The recovery values between the declared and found APAP content in a pharmaceutical formulation (Caffetin®) displayed the advantageous accuracy, precision, and applicability of the GCP@Bi2O3 sensor and the developed DPV method for real-time APAP detection in pharmaceuticals, with minimal interference from the matrix effect.",
publisher = "MDPI",
journal = "Chemosensors",
title = "Electrochemical Detection of Acetaminophen in Pharmaceuticals Using Rod-Shaped α-Bi2O3 Prepared via Reverse Co-Precipitation",
volume = "12",
number = "7",
pages = "122",
doi = "10.3390/chemosensors12070122"
}

Anđelković, L., Đurđić, S., Stanković, D., Kremenović, A., Pavlović, V., Jeremić, D.,& Šuljagić, M.. (2024). Electrochemical Detection of Acetaminophen in Pharmaceuticals Using Rod-Shaped α-Bi2O3 Prepared via Reverse Co-Precipitation. in Chemosensors
MDPI., 12(7), 122.
https://doi.org/10.3390/chemosensors12070122

Anđelković L, Đurđić S, Stanković D, Kremenović A, Pavlović V, Jeremić D, Šuljagić M. Electrochemical Detection of Acetaminophen in Pharmaceuticals Using Rod-Shaped α-Bi2O3 Prepared via Reverse Co-Precipitation. in Chemosensors. 2024;12(7):122.
doi:10.3390/chemosensors12070122 .

Anđelković, Ljubica, Đurđić, Slađana, Stanković, Dalibor, Kremenović, Aleksandar, Pavlović, Vladimir, Jeremić, Dejan, Šuljagić, Marija, "Electrochemical Detection of Acetaminophen in Pharmaceuticals Using Rod-Shaped α-Bi2O3 Prepared via Reverse Co-Precipitation" in Chemosensors, 12, no. 7 (2024):122,
https://doi.org/10.3390/chemosensors12070122 . .

TY  - CONF
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
AU  - Kremenović, Aleksandar
AU  - Pavlović, Vladimir
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7831
AB  - The reverse co-precipitation method combined with calcination was applied to synthesize α-Bi2O3 rod-like microstructures. The standard co-precipitation and reverse co-precipitation approaches include using nitric acid to dissolve bismuth nitrate as a source of Bi3+ ions [1,2]. In this study, the procedure was modified since glacial acetic acid was used instead of HNO3. To the best of our knowledge, there is no literature data for the preparation of α-Bi2O3 by reverse co-precipitation using acetic acid up to now. The phase analyses calculated by the relative intensity ratio (RIR) method were obtained using the PDXL2 integrated XRPD software (Ver. 2.8.4.0; Rigaku Corporation). XRPD revealed a presence of Bi2O3 composed of P21/c polymorph (α- Bi2O3) modification (96.3(1) %). The unit cell parameters calculated by the Reference Intensity Ratio (RIR) method were close to reference values (PDF # 01-070-8243). The ω-Bi2O3 (P31c) was found in the minority (3.7(1) %). The presence of Bi2O3 (P21/c, PDF # 01-080-2589) and Bi6O7 (I4/mmm, PDF # 03-065-5490) near the limit of detection might be possible. Fourier Transform Infrared Spectroscopy (FTIR) was also used to confirm the presence of Bi2O3. The rod-like morphology was confirmed by Scanning and Transmission Electron Microscopy (SEM and TEM). The Bi2O3 particles prepared by the modified reverse co-precipitation route combined with calcination are smaller in comparison to particles synthesized by standard reverse co-precipitation procedures, which include the usage of nitric acid [2]. The obtained results gave us hope that the presented synthesis approach may be a good platform for producing rod-like microstructures of α-Bi2O3, which might be successfully applied in electrochemistry and catalysis.
AB  - Метода реверзне копреципитације комбинована са калцинацијом употребљена је при синтези α-Bi2O3 штапићастих микроструктура. Стандардни приступи при употреби ових метода за синтезу бизмут-оксида подразумевају коришћење азотне киселине при растварању бизмут-нитрата који представља извор Bi3+ јона [1,2]. У овој студији, метода реверзне копреципитације је модификована јер је уместо азотне коришћена глацијална сирћетна. Нису пронађени литературни подаци који указују на употребу сирћетне киселине при синтези честица α-Bi2O3 методом реверзне копреципитације што ову студију чини иновативном. Фазна анализа изведена је помоћу RIR (Reference Intensity Ratio) методе инкорпориране у PDXL2 интегрисани XRPD софтвер (верзија 2.8.30; Rigaku Corporation). Резултатима рендгенске структурне анализе утврђено је присуство α-Bi2O3 полиморфа (P21/c) у количини од 96,3(1)%. Параметри јединичне ћелије утачњени су уз помоћ RIR методе и блиски су референтним вредностима (PDF # 01-070-8243). Потврђено је и присуство ω-Bi2O3 полиморфа у незнатној количини (3,7(1)%). Постоји могућност присуства фаза Bi2O3 (P21/c, PDF # 01-080-2589) и Bi6O7 (I4/mmm, PDF # 03-065-5490) близу границе детекције. Штапићаста морфологија добијених честица потврђена је СЕМ и ТЕМ методама. Честице Bi2O3 припремљене модификованом методом реверзне копреципитације комбиноване са калцинацијом знатно су мање у поређењу са честицама синтетисаним стандардним техникама реверзне копреципитације које укључују употребу азотне киселине [2]. Добијени резултати показују добру перспективу за употребу приказане методе синтезе при припреми α-Bi2O3 микроструктура које могу наћи потенцијалну примену у електрохемији и катализи.
PB  - Serbian Crystallographic Society, Belgrade, Serbia
PB  - Српско кристалографско друштво, Београд, Србија
C3  - 29th Conference of the Serbian Crystallographic Society - Abstracts, June 27–28th, 2024 Ruma, Serbia / XXIX Konferencija Srpskog kristalografskog društva - Izvodi radova, Jun 27–28, 2024 Ruma, Srbija
T1  - Structural and morphological properties of Bi2O3 prepared by modified reversed coprecipitation route
T1  - Структурна и морфолошка својства Bi2O3 синтетисаног методом модификоване реверзне копреципитације
SP  - 110
EP  - 111
UR  - https://hdl.handle.net/21.15107/rcub_cer_7831
ER  - 

@conference{
author = "Šuljagić, Marija and Anđelković, Ljubica and Kremenović, Aleksandar and Pavlović, Vladimir",
year = "2024",
abstract = "The reverse co-precipitation method combined with calcination was applied to synthesize α-Bi2O3 rod-like microstructures. The standard co-precipitation and reverse co-precipitation approaches include using nitric acid to dissolve bismuth nitrate as a source of Bi3+ ions [1,2]. In this study, the procedure was modified since glacial acetic acid was used instead of HNO3. To the best of our knowledge, there is no literature data for the preparation of α-Bi2O3 by reverse co-precipitation using acetic acid up to now. The phase analyses calculated by the relative intensity ratio (RIR) method were obtained using the PDXL2 integrated XRPD software (Ver. 2.8.4.0; Rigaku Corporation). XRPD revealed a presence of Bi2O3 composed of P21/c polymorph (α- Bi2O3) modification (96.3(1) %). The unit cell parameters calculated by the Reference Intensity Ratio (RIR) method were close to reference values (PDF # 01-070-8243). The ω-Bi2O3 (P31c) was found in the minority (3.7(1) %). The presence of Bi2O3 (P21/c, PDF # 01-080-2589) and Bi6O7 (I4/mmm, PDF # 03-065-5490) near the limit of detection might be possible. Fourier Transform Infrared Spectroscopy (FTIR) was also used to confirm the presence of Bi2O3. The rod-like morphology was confirmed by Scanning and Transmission Electron Microscopy (SEM and TEM). The Bi2O3 particles prepared by the modified reverse co-precipitation route combined with calcination are smaller in comparison to particles synthesized by standard reverse co-precipitation procedures, which include the usage of nitric acid [2]. The obtained results gave us hope that the presented synthesis approach may be a good platform for producing rod-like microstructures of α-Bi2O3, which might be successfully applied in electrochemistry and catalysis., Метода реверзне копреципитације комбинована са калцинацијом употребљена је при синтези α-Bi2O3 штапићастих микроструктура. Стандардни приступи при употреби ових метода за синтезу бизмут-оксида подразумевају коришћење азотне киселине при растварању бизмут-нитрата који представља извор Bi3+ јона [1,2]. У овој студији, метода реверзне копреципитације је модификована јер је уместо азотне коришћена глацијална сирћетна. Нису пронађени литературни подаци који указују на употребу сирћетне киселине при синтези честица α-Bi2O3 методом реверзне копреципитације што ову студију чини иновативном. Фазна анализа изведена је помоћу RIR (Reference Intensity Ratio) методе инкорпориране у PDXL2 интегрисани XRPD софтвер (верзија 2.8.30; Rigaku Corporation). Резултатима рендгенске структурне анализе утврђено је присуство α-Bi2O3 полиморфа (P21/c) у количини од 96,3(1)%. Параметри јединичне ћелије утачњени су уз помоћ RIR методе и блиски су референтним вредностима (PDF # 01-070-8243). Потврђено је и присуство ω-Bi2O3 полиморфа у незнатној количини (3,7(1)%). Постоји могућност присуства фаза Bi2O3 (P21/c, PDF # 01-080-2589) и Bi6O7 (I4/mmm, PDF # 03-065-5490) близу границе детекције. Штапићаста морфологија добијених честица потврђена је СЕМ и ТЕМ методама. Честице Bi2O3 припремљене модификованом методом реверзне копреципитације комбиноване са калцинацијом знатно су мање у поређењу са честицама синтетисаним стандардним техникама реверзне копреципитације које укључују употребу азотне киселине [2]. Добијени резултати показују добру перспективу за употребу приказане методе синтезе при припреми α-Bi2O3 микроструктура које могу наћи потенцијалну примену у електрохемији и катализи.",
publisher = "Serbian Crystallographic Society, Belgrade, Serbia, Српско кристалографско друштво, Београд, Србија",
journal = "29th Conference of the Serbian Crystallographic Society - Abstracts, June 27–28th, 2024 Ruma, Serbia / XXIX Konferencija Srpskog kristalografskog društva - Izvodi radova, Jun 27–28, 2024 Ruma, Srbija",
title = "Structural and morphological properties of Bi2O3 prepared by modified reversed coprecipitation route, Структурна и морфолошка својства Bi2O3 синтетисаног методом модификоване реверзне копреципитације",
pages = "110-111",
url = "https://hdl.handle.net/21.15107/rcub_cer_7831"
}

Šuljagić, M., Anđelković, L., Kremenović, A.,& Pavlović, V.. (2024). Structural and morphological properties of Bi2O3 prepared by modified reversed coprecipitation route. in 29th Conference of the Serbian Crystallographic Society - Abstracts, June 27–28th, 2024 Ruma, Serbia / XXIX Konferencija Srpskog kristalografskog društva - Izvodi radova, Jun 27–28, 2024 Ruma, Srbija
Serbian Crystallographic Society, Belgrade, Serbia., 110-111.
https://hdl.handle.net/21.15107/rcub_cer_7831

Šuljagić M, Anđelković L, Kremenović A, Pavlović V. Structural and morphological properties of Bi2O3 prepared by modified reversed coprecipitation route. in 29th Conference of the Serbian Crystallographic Society - Abstracts, June 27–28th, 2024 Ruma, Serbia / XXIX Konferencija Srpskog kristalografskog društva - Izvodi radova, Jun 27–28, 2024 Ruma, Srbija. 2024;:110-111.
https://hdl.handle.net/21.15107/rcub_cer_7831 .

Šuljagić, Marija, Anđelković, Ljubica, Kremenović, Aleksandar, Pavlović, Vladimir, "Structural and morphological properties of Bi2O3 prepared by modified reversed coprecipitation route" in 29th Conference of the Serbian Crystallographic Society - Abstracts, June 27–28th, 2024 Ruma, Serbia / XXIX Konferencija Srpskog kristalografskog društva - Izvodi radova, Jun 27–28, 2024 Ruma, Srbija (2024):110-111,
https://hdl.handle.net/21.15107/rcub_cer_7831 .

TY  - CONF
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
AU  - Kremenović, Aleksandar
AU  - Pavlović, Vladimir
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7832
AB  - The reverse co-precipitation method combined with calcination was applied to synthesize α-Bi2O3 rod-like microstructures. The standard co-precipitation and reverse co-precipitation approaches include using nitric acid to dissolve bismuth nitrate as a source of Bi3+ ions [1,2]. In this study, the procedure was modified since glacial acetic acid was used instead of HNO3. To the best of our knowledge, there is no literature data for the preparation of α-Bi2O3 by reverse co-precipitation using acetic acid up to now. The phase analyses calculated by the relative intensity ratio (RIR) method were obtained using the PDXL2 integrated XRPD software (Ver. 2.8.4.0; Rigaku Corporation). XRPD revealed a presence of Bi2O3 composed of P21/c polymorph (α- Bi2O3) modification (96.3(1) %). The unit cell parameters calculated by the Reference Intensity Ratio (RIR) method were close to reference values (PDF # 01-070-8243). The ω-Bi2O3 (P31c) was found in the minority (3.7(1) %). The presence of Bi2O3 (P21/c, PDF # 01-080-2589) and Bi6O7 (I4/mmm, PDF # 03-065-5490) near the limit of detection might be possible. Fourier Transform Infrared Spectroscopy (FTIR) was also used to confirm the presence of Bi2O3. The rod-like morphology was confirmed by Scanning and Transmission Electron Microscopy (SEM and TEM). The Bi2O3 particles prepared by the modified reverse co-precipitation route combined with calcination are smaller in comparison to particles synthesized by standard reverse co-precipitation procedures, which include the usage of nitric acid [2]. The obtained results gave us hope that the presented synthesis approach may be a good platform for producing rod-like microstructures of α-Bi2O3, which might be successfully applied in electrochemistry and catalysis.
AB  - Метода реверзне копреципитације комбинована са калцинацијом употребљена је при синтези α-Bi2O3 штапићастих микроструктура. Стандардни приступи при употреби ових метода за синтезу бизмут-оксида подразумевају коришћење азотне киселине при растварању бизмут-нитрата који представља извор Bi3+ јона [1,2]. У овој студији, метода реверзне копреципитације је модификована јер је уместо азотне коришћена глацијална сирћетна. Нису пронађени литературни подаци који указују на употребу сирћетне киселине при синтези честица α-Bi2O3 методом реверзне копреципитације што ову студију чини иновативном. Фазна анализа изведена је помоћу RIR (Reference Intensity Ratio) методе инкорпориране у PDXL2 интегрисани XRPD софтвер (верзија 2.8.30; Rigaku Corporation). Резултатима рендгенске структурне анализе утврђено је присуство α-Bi2O3 полиморфа (P21/c) у количини од 96,3(1)%. Параметри јединичне ћелије утачњени су уз помоћ RIR методе и блиски су референтним вредностима (PDF # 01-070-8243). Потврђено је и присуство ω-Bi2O3 полиморфа у незнатној количини (3,7(1)%). Постоји могућност присуства фаза Bi2O3 (P21/c, PDF # 01-080-2589) и Bi6O7 (I4/mmm, PDF # 03-065-5490) близу границе детекције. Штапићаста морфологија добијених честица потврђена је СЕМ и ТЕМ методама. Честице Bi2O3 припремљене модификованом методом реверзне копреципитације комбиноване са калцинацијом знатно су мање у поређењу са честицама синтетисаним стандардним техникама реверзне копреципитације које укључују употребу азотне киселине [2]. Добијени резултати показују добру перспективу за употребу приказане методе синтезе при припреми α-Bi2O3 микроструктура које могу наћи потенцијалну примену у електрохемији и катализи.
C3  - P35
T1  - Structural and morphological properties of Bi2O3 prepared by modified reversed coprecipitation route
T1  - Структурна и морфолошка својства Bi2O3 синтетисаног методом модификоване реверзне копреципитације
UR  - https://hdl.handle.net/21.15107/rcub_cer_7832
ER  - 

@conference{
author = "Šuljagić, Marija and Anđelković, Ljubica and Kremenović, Aleksandar and Pavlović, Vladimir",
year = "2024",
abstract = "The reverse co-precipitation method combined with calcination was applied to synthesize α-Bi2O3 rod-like microstructures. The standard co-precipitation and reverse co-precipitation approaches include using nitric acid to dissolve bismuth nitrate as a source of Bi3+ ions [1,2]. In this study, the procedure was modified since glacial acetic acid was used instead of HNO3. To the best of our knowledge, there is no literature data for the preparation of α-Bi2O3 by reverse co-precipitation using acetic acid up to now. The phase analyses calculated by the relative intensity ratio (RIR) method were obtained using the PDXL2 integrated XRPD software (Ver. 2.8.4.0; Rigaku Corporation). XRPD revealed a presence of Bi2O3 composed of P21/c polymorph (α- Bi2O3) modification (96.3(1) %). The unit cell parameters calculated by the Reference Intensity Ratio (RIR) method were close to reference values (PDF # 01-070-8243). The ω-Bi2O3 (P31c) was found in the minority (3.7(1) %). The presence of Bi2O3 (P21/c, PDF # 01-080-2589) and Bi6O7 (I4/mmm, PDF # 03-065-5490) near the limit of detection might be possible. Fourier Transform Infrared Spectroscopy (FTIR) was also used to confirm the presence of Bi2O3. The rod-like morphology was confirmed by Scanning and Transmission Electron Microscopy (SEM and TEM). The Bi2O3 particles prepared by the modified reverse co-precipitation route combined with calcination are smaller in comparison to particles synthesized by standard reverse co-precipitation procedures, which include the usage of nitric acid [2]. The obtained results gave us hope that the presented synthesis approach may be a good platform for producing rod-like microstructures of α-Bi2O3, which might be successfully applied in electrochemistry and catalysis., Метода реверзне копреципитације комбинована са калцинацијом употребљена је при синтези α-Bi2O3 штапићастих микроструктура. Стандардни приступи при употреби ових метода за синтезу бизмут-оксида подразумевају коришћење азотне киселине при растварању бизмут-нитрата који представља извор Bi3+ јона [1,2]. У овој студији, метода реверзне копреципитације је модификована јер је уместо азотне коришћена глацијална сирћетна. Нису пронађени литературни подаци који указују на употребу сирћетне киселине при синтези честица α-Bi2O3 методом реверзне копреципитације што ову студију чини иновативном. Фазна анализа изведена је помоћу RIR (Reference Intensity Ratio) методе инкорпориране у PDXL2 интегрисани XRPD софтвер (верзија 2.8.30; Rigaku Corporation). Резултатима рендгенске структурне анализе утврђено је присуство α-Bi2O3 полиморфа (P21/c) у количини од 96,3(1)%. Параметри јединичне ћелије утачњени су уз помоћ RIR методе и блиски су референтним вредностима (PDF # 01-070-8243). Потврђено је и присуство ω-Bi2O3 полиморфа у незнатној количини (3,7(1)%). Постоји могућност присуства фаза Bi2O3 (P21/c, PDF # 01-080-2589) и Bi6O7 (I4/mmm, PDF # 03-065-5490) близу границе детекције. Штапићаста морфологија добијених честица потврђена је СЕМ и ТЕМ методама. Честице Bi2O3 припремљене модификованом методом реверзне копреципитације комбиноване са калцинацијом знатно су мање у поређењу са честицама синтетисаним стандардним техникама реверзне копреципитације које укључују употребу азотне киселине [2]. Добијени резултати показују добру перспективу за употребу приказане методе синтезе при припреми α-Bi2O3 микроструктура које могу наћи потенцијалну примену у електрохемији и катализи.",
journal = "P35",
title = "Structural and morphological properties of Bi2O3 prepared by modified reversed coprecipitation route, Структурна и морфолошка својства Bi2O3 синтетисаног методом модификоване реверзне копреципитације",
url = "https://hdl.handle.net/21.15107/rcub_cer_7832"
}

Šuljagić, M., Anđelković, L., Kremenović, A.,& Pavlović, V.. (2024). Structural and morphological properties of Bi2O3 prepared by modified reversed coprecipitation route. in P35.
https://hdl.handle.net/21.15107/rcub_cer_7832

Šuljagić M, Anđelković L, Kremenović A, Pavlović V. Structural and morphological properties of Bi2O3 prepared by modified reversed coprecipitation route. in P35. 2024;.
https://hdl.handle.net/21.15107/rcub_cer_7832 .

Šuljagić, Marija, Anđelković, Ljubica, Kremenović, Aleksandar, Pavlović, Vladimir, "Structural and morphological properties of Bi2O3 prepared by modified reversed coprecipitation route" in P35 (2024),
https://hdl.handle.net/21.15107/rcub_cer_7832 .

TY  - CONF
AU  - Anđelković, Ljubica
AU  - Šuljagić, Marija
AU  - Mraković, Ana
AU  - Pavlović, Vladimir
AU  - Tadić, Marin
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7833
AB  - The present study has dealt with the structural, morphological and magnetic properties of
cobalt-ferrite (CoFe2O4) and cobalt-ferrite in amorphous silica matrix (CoFe2O4/SiO2) prepared
by thermal decomposition of appropriate acetylacetonate complexes. The synthesized
materials were characterized with the use of X-ray powder diffraction (XRPD), scanning
electron microscopy (SEM), electron dispersive spectrum (EDS) and transmission electron
microscopy (TEM). The presence of a single-phase cubic spinel structure was confirmed for both
investigated powders. The synthesized particles are highly agglomerated as a consequence of
their nanometric sizes and ferrimagnetic nature. The microstructure of the composite indicated
spongy porous clusters with less pronounced agglomeration than that of bare cobalt-ferrite.
Closer inspection of the EDS map revealed that the CoFe2O4 nanoparticles were homogeneously
dispersed over the silica matrix. The pure CoFe2O4 sample consisted of spherically shaped
agglomerates with the primary particles being evidently in the sub-100 nm range and mostly
polygonal in shape. Magnetic measurements were conducted using a SQUID magnetometer.
The introduction of a silica matrix led to a slight decrease in coercivity at room temperature.
The saturation magnetization value for CoFe2O4 was about 75 emu/g at ambient conditions. As
expected, the silica matrix strongly influenced the magnetization of the material (⁓7.7 emu/g).
The obtained results show the perspective for possible applications in various technological
areas.
PB  - Materials Research Society of Serbia
C3  - Twenty-Fifth Jubilee Annual Conference On Material Science YUCOMAT 2024 & Thirteenth World Round Table Conference On Sintering XIII WRTCS 2024, Program and Book of Abstracts, September 1-7, 2024, Herceg Novi, Montenegro
T1  - The magnetic properties of CoFe2O4 and CoFe2O4/SiO2 prepared by thermal decomposition method
SP  - 61
EP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_cer_7833
ER  - 

@conference{
author = "Anđelković, Ljubica and Šuljagić, Marija and Mraković, Ana and Pavlović, Vladimir and Tadić, Marin",
year = "2024",
abstract = "The present study has dealt with the structural, morphological and magnetic properties of
cobalt-ferrite (CoFe2O4) and cobalt-ferrite in amorphous silica matrix (CoFe2O4/SiO2) prepared
by thermal decomposition of appropriate acetylacetonate complexes. The synthesized
materials were characterized with the use of X-ray powder diffraction (XRPD), scanning
electron microscopy (SEM), electron dispersive spectrum (EDS) and transmission electron
microscopy (TEM). The presence of a single-phase cubic spinel structure was confirmed for both
investigated powders. The synthesized particles are highly agglomerated as a consequence of
their nanometric sizes and ferrimagnetic nature. The microstructure of the composite indicated
spongy porous clusters with less pronounced agglomeration than that of bare cobalt-ferrite.
Closer inspection of the EDS map revealed that the CoFe2O4 nanoparticles were homogeneously
dispersed over the silica matrix. The pure CoFe2O4 sample consisted of spherically shaped
agglomerates with the primary particles being evidently in the sub-100 nm range and mostly
polygonal in shape. Magnetic measurements were conducted using a SQUID magnetometer.
The introduction of a silica matrix led to a slight decrease in coercivity at room temperature.
The saturation magnetization value for CoFe2O4 was about 75 emu/g at ambient conditions. As
expected, the silica matrix strongly influenced the magnetization of the material (⁓7.7 emu/g).
The obtained results show the perspective for possible applications in various technological
areas.",
publisher = "Materials Research Society of Serbia",
journal = "Twenty-Fifth Jubilee Annual Conference On Material Science YUCOMAT 2024 & Thirteenth World Round Table Conference On Sintering XIII WRTCS 2024, Program and Book of Abstracts, September 1-7, 2024, Herceg Novi, Montenegro",
title = "The magnetic properties of CoFe2O4 and CoFe2O4/SiO2 prepared by thermal decomposition method",
pages = "61-61",
url = "https://hdl.handle.net/21.15107/rcub_cer_7833"
}

Anđelković, L., Šuljagić, M., Mraković, A., Pavlović, V.,& Tadić, M.. (2024). The magnetic properties of CoFe2O4 and CoFe2O4/SiO2 prepared by thermal decomposition method. in Twenty-Fifth Jubilee Annual Conference On Material Science YUCOMAT 2024 & Thirteenth World Round Table Conference On Sintering XIII WRTCS 2024, Program and Book of Abstracts, September 1-7, 2024, Herceg Novi, Montenegro
Materials Research Society of Serbia., 61-61.
https://hdl.handle.net/21.15107/rcub_cer_7833

Anđelković L, Šuljagić M, Mraković A, Pavlović V, Tadić M. The magnetic properties of CoFe2O4 and CoFe2O4/SiO2 prepared by thermal decomposition method. in Twenty-Fifth Jubilee Annual Conference On Material Science YUCOMAT 2024 & Thirteenth World Round Table Conference On Sintering XIII WRTCS 2024, Program and Book of Abstracts, September 1-7, 2024, Herceg Novi, Montenegro. 2024;:61-61.
https://hdl.handle.net/21.15107/rcub_cer_7833 .

Anđelković, Ljubica, Šuljagić, Marija, Mraković, Ana, Pavlović, Vladimir, Tadić, Marin, "The magnetic properties of CoFe2O4 and CoFe2O4/SiO2 prepared by thermal decomposition method" in Twenty-Fifth Jubilee Annual Conference On Material Science YUCOMAT 2024 & Thirteenth World Round Table Conference On Sintering XIII WRTCS 2024, Program and Book of Abstracts, September 1-7, 2024, Herceg Novi, Montenegro (2024):61-61,
https://hdl.handle.net/21.15107/rcub_cer_7833 .

TY  - CONF
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
AU  - Mraković, Ana
AU  - Pavlović, Vladimir
AU  - Tadić, Marin
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7834
AB  - The aim of this study was to investigate the magnetic properties of novel ε-Fe2O3/SiO2
composites prepared by the microemulsion method followed by programmed annealing
treatment. The reverse micelle approach was applied using heptane and hexanol as the oil
phase, respectively. The resulting powders were characterized using a range of experimental
techniques and assessed for their magnetic properties. X-ray powder diffraction (XRPD)
revealed pure ε-Fe2O3 alongside amorphous SiO2 in both cases. The nanometric nature of
ε-Fe2O3 particles uniformly incorporated into the SiO2 matrix was confirmed by Scanning and
Transmission Electron Microscopy (SEM and TEM). As a result of appropriate annealing
treatment, the obtained materials possessed high coercivity values. The findings of this study
give hope that with appropriate synthesis alterations, pure ε-Fe2O3 with superior magnetic
properties can be obtained which opens the way for its successful applications in technology.
PB  - Materials Research Society of Serbia
C3  - Twenty-Fifth Jubilee Annual Conference On Material Science YUCOMAT 2024 & Thirteenth World Round Table Conference On Sintering XIII WRTCS 2024, Program and Book of Abstracts, September 1-7, 2024, Herceg Novi, Montenegro
T1  - Structural and magnetic properties of nanometric ε-Fe2O3 prepared by microemulsion method
SP  - 64
EP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_cer_7834
ER  - 

@conference{
author = "Šuljagić, Marija and Anđelković, Ljubica and Mraković, Ana and Pavlović, Vladimir and Tadić, Marin",
year = "2024",
abstract = "The aim of this study was to investigate the magnetic properties of novel ε-Fe2O3/SiO2
composites prepared by the microemulsion method followed by programmed annealing
treatment. The reverse micelle approach was applied using heptane and hexanol as the oil
phase, respectively. The resulting powders were characterized using a range of experimental
techniques and assessed for their magnetic properties. X-ray powder diffraction (XRPD)
revealed pure ε-Fe2O3 alongside amorphous SiO2 in both cases. The nanometric nature of
ε-Fe2O3 particles uniformly incorporated into the SiO2 matrix was confirmed by Scanning and
Transmission Electron Microscopy (SEM and TEM). As a result of appropriate annealing
treatment, the obtained materials possessed high coercivity values. The findings of this study
give hope that with appropriate synthesis alterations, pure ε-Fe2O3 with superior magnetic
properties can be obtained which opens the way for its successful applications in technology.",
publisher = "Materials Research Society of Serbia",
journal = "Twenty-Fifth Jubilee Annual Conference On Material Science YUCOMAT 2024 & Thirteenth World Round Table Conference On Sintering XIII WRTCS 2024, Program and Book of Abstracts, September 1-7, 2024, Herceg Novi, Montenegro",
title = "Structural and magnetic properties of nanometric ε-Fe2O3 prepared by microemulsion method",
pages = "64-64",
url = "https://hdl.handle.net/21.15107/rcub_cer_7834"
}

Šuljagić, M., Anđelković, L., Mraković, A., Pavlović, V.,& Tadić, M.. (2024). Structural and magnetic properties of nanometric ε-Fe2O3 prepared by microemulsion method. in Twenty-Fifth Jubilee Annual Conference On Material Science YUCOMAT 2024 & Thirteenth World Round Table Conference On Sintering XIII WRTCS 2024, Program and Book of Abstracts, September 1-7, 2024, Herceg Novi, Montenegro
Materials Research Society of Serbia., 64-64.
https://hdl.handle.net/21.15107/rcub_cer_7834

Šuljagić M, Anđelković L, Mraković A, Pavlović V, Tadić M. Structural and magnetic properties of nanometric ε-Fe2O3 prepared by microemulsion method. in Twenty-Fifth Jubilee Annual Conference On Material Science YUCOMAT 2024 & Thirteenth World Round Table Conference On Sintering XIII WRTCS 2024, Program and Book of Abstracts, September 1-7, 2024, Herceg Novi, Montenegro. 2024;:64-64.
https://hdl.handle.net/21.15107/rcub_cer_7834 .

Šuljagić, Marija, Anđelković, Ljubica, Mraković, Ana, Pavlović, Vladimir, Tadić, Marin, "Structural and magnetic properties of nanometric ε-Fe2O3 prepared by microemulsion method" in Twenty-Fifth Jubilee Annual Conference On Material Science YUCOMAT 2024 & Thirteenth World Round Table Conference On Sintering XIII WRTCS 2024, Program and Book of Abstracts, September 1-7, 2024, Herceg Novi, Montenegro (2024):64-64,
https://hdl.handle.net/21.15107/rcub_cer_7834 .

TY  - CONF
AU  - Anđelković, Ljubica
AU  - Šuljagić, Marija
AU  - Mraković, Ana
AU  - Pavlović, Vladimir
AU  - Tadić, Marin
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7835
AB  - The present study has dealt with the structural, morphological and magnetic properties of
cobalt-ferrite (CoFe2O4) and cobalt-ferrite in amorphous silica matrix (CoFe2O4/SiO2) prepared
by thermal decomposition of appropriate acetylacetonate complexes. The synthesized
materials were characterized with the use of X-ray powder diffraction (XRPD), scanning
electron microscopy (SEM), electron dispersive spectrum (EDS) and transmission electron
microscopy (TEM). The presence of a single-phase cubic spinel structure was confirmed for both
investigated powders. The synthesized particles are highly agglomerated as a consequence of
their nanometric sizes and ferrimagnetic nature. The microstructure of the composite indicated
spongy porous clusters with less pronounced agglomeration than that of bare cobalt-ferrite.
Closer inspection of the EDS map revealed that the CoFe2O4 nanoparticles were homogeneously
dispersed over the silica matrix. The pure CoFe2O4 sample consisted of spherically shaped
agglomerates with the primary particles being evidently in the sub-100 nm range and mostly
polygonal in shape. Magnetic measurements were conducted using a SQUID magnetometer.
The introduction of a silica matrix led to a slight decrease in coercivity at room temperature.
The saturation magnetization value for CoFe2O4 was about 75 emu/g at ambient conditions. As
expected, the silica matrix strongly influenced the magnetization of the material (⁓7.7 emu/g).
The obtained results show the perspective for possible applications in various technological
areas.
C3  - P.S.I.C. 3
T1  - The magnetic properties of CoFe2O4 and CoFe2O4/SiO2 prepared by thermal decomposition method
UR  - https://hdl.handle.net/21.15107/rcub_cer_7835
ER  - 

@conference{
author = "Anđelković, Ljubica and Šuljagić, Marija and Mraković, Ana and Pavlović, Vladimir and Tadić, Marin",
year = "2024",
abstract = "The present study has dealt with the structural, morphological and magnetic properties of
cobalt-ferrite (CoFe2O4) and cobalt-ferrite in amorphous silica matrix (CoFe2O4/SiO2) prepared
by thermal decomposition of appropriate acetylacetonate complexes. The synthesized
materials were characterized with the use of X-ray powder diffraction (XRPD), scanning
electron microscopy (SEM), electron dispersive spectrum (EDS) and transmission electron
microscopy (TEM). The presence of a single-phase cubic spinel structure was confirmed for both
investigated powders. The synthesized particles are highly agglomerated as a consequence of
their nanometric sizes and ferrimagnetic nature. The microstructure of the composite indicated
spongy porous clusters with less pronounced agglomeration than that of bare cobalt-ferrite.
Closer inspection of the EDS map revealed that the CoFe2O4 nanoparticles were homogeneously
dispersed over the silica matrix. The pure CoFe2O4 sample consisted of spherically shaped
agglomerates with the primary particles being evidently in the sub-100 nm range and mostly
polygonal in shape. Magnetic measurements were conducted using a SQUID magnetometer.
The introduction of a silica matrix led to a slight decrease in coercivity at room temperature.
The saturation magnetization value for CoFe2O4 was about 75 emu/g at ambient conditions. As
expected, the silica matrix strongly influenced the magnetization of the material (⁓7.7 emu/g).
The obtained results show the perspective for possible applications in various technological
areas.",
journal = "P.S.I.C. 3",
title = "The magnetic properties of CoFe2O4 and CoFe2O4/SiO2 prepared by thermal decomposition method",
url = "https://hdl.handle.net/21.15107/rcub_cer_7835"
}

Anđelković, L., Šuljagić, M., Mraković, A., Pavlović, V.,& Tadić, M.. (2024). The magnetic properties of CoFe2O4 and CoFe2O4/SiO2 prepared by thermal decomposition method. in P.S.I.C. 3.
https://hdl.handle.net/21.15107/rcub_cer_7835

Anđelković L, Šuljagić M, Mraković A, Pavlović V, Tadić M. The magnetic properties of CoFe2O4 and CoFe2O4/SiO2 prepared by thermal decomposition method. in P.S.I.C. 3. 2024;.
https://hdl.handle.net/21.15107/rcub_cer_7835 .

Anđelković, Ljubica, Šuljagić, Marija, Mraković, Ana, Pavlović, Vladimir, Tadić, Marin, "The magnetic properties of CoFe2O4 and CoFe2O4/SiO2 prepared by thermal decomposition method" in P.S.I.C. 3 (2024),
https://hdl.handle.net/21.15107/rcub_cer_7835 .

TY  - CONF
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
AU  - Mraković, Ana
AU  - Pavlović, Vladimir
AU  - Tadić, Marin
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7836
AB  - The aim of this study was to investigate the magnetic properties of novel ε-Fe2O3/SiO2 composites prepared by the microemulsion method followed by programmed annealing treatment. The reverse micelle approach was applied using heptane and hexanol as the oil phase, respectively. The resulting powders were characterized using a range of experimental techniques and assessed for their magnetic properties. X-ray powder diffraction (XRPD) revealed pure ε-Fe2O3 alongside amorphous SiO2 in both cases. The nanometric nature of ε-Fe2O3 particles uniformly incorporated into the SiO2 matrix was confirmed by Scanning and Transmission Electron Microscopy (SEM and TEM). As a result of appropriate annealing treatment, the obtained materials possessed high coercivity values. The findings of this study give hope that with appropriate synthesis alterations, pure ε-Fe2O3 with superior magnetic properties can be obtained which opens the way for its successful applications in technology.
C3  - P.S.I.C. 6
T1  - Structural and magnetic properties of nanometric ε-Fe2O3 prepared by microemulsion method
UR  - https://hdl.handle.net/21.15107/rcub_cer_7836
ER  - 

@conference{
author = "Šuljagić, Marija and Anđelković, Ljubica and Mraković, Ana and Pavlović, Vladimir and Tadić, Marin",
year = "2024",
abstract = "The aim of this study was to investigate the magnetic properties of novel ε-Fe2O3/SiO2 composites prepared by the microemulsion method followed by programmed annealing treatment. The reverse micelle approach was applied using heptane and hexanol as the oil phase, respectively. The resulting powders were characterized using a range of experimental techniques and assessed for their magnetic properties. X-ray powder diffraction (XRPD) revealed pure ε-Fe2O3 alongside amorphous SiO2 in both cases. The nanometric nature of ε-Fe2O3 particles uniformly incorporated into the SiO2 matrix was confirmed by Scanning and Transmission Electron Microscopy (SEM and TEM). As a result of appropriate annealing treatment, the obtained materials possessed high coercivity values. The findings of this study give hope that with appropriate synthesis alterations, pure ε-Fe2O3 with superior magnetic properties can be obtained which opens the way for its successful applications in technology.",
journal = "P.S.I.C. 6",
title = "Structural and magnetic properties of nanometric ε-Fe2O3 prepared by microemulsion method",
url = "https://hdl.handle.net/21.15107/rcub_cer_7836"
}

Šuljagić, M., Anđelković, L., Mraković, A., Pavlović, V.,& Tadić, M.. (2024). Structural and magnetic properties of nanometric ε-Fe2O3 prepared by microemulsion method. in P.S.I.C. 6.
https://hdl.handle.net/21.15107/rcub_cer_7836

Šuljagić M, Anđelković L, Mraković A, Pavlović V, Tadić M. Structural and magnetic properties of nanometric ε-Fe2O3 prepared by microemulsion method. in P.S.I.C. 6. 2024;.
https://hdl.handle.net/21.15107/rcub_cer_7836 .

Šuljagić, Marija, Anđelković, Ljubica, Mraković, Ana, Pavlović, Vladimir, Tadić, Marin, "Structural and magnetic properties of nanometric ε-Fe2O3 prepared by microemulsion method" in P.S.I.C. 6 (2024),
https://hdl.handle.net/21.15107/rcub_cer_7836 .

TY  - CONF
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
AU  - Đurđić, Slađana
AU  - Stanković, Dalibor
AU  - Kremenović, Aleksandar
AU  - Pavlović, Vladimir
AU  - Jeremić, Dejan
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7847
AB  - A modified reverse co-precipitation method using glacial acetic acid to synthesize α-Bi2O3 structures is presented. The formation of an almost pure rod-like α- Bi2O3 microstructure was confirmed by X-ray powder diffraction and scanning and transmission electron microscopy analyses. A glassy carbon paste (GCP) electrode was modified with the obtained material in aim of development of an electrochemical sensor for acetaminophen (APAP) detection using differential pulse voltammetry (DPV). Cyclic voltammetry revealed better performance of the GCP@Bi2O3 electrode in comparison to the bare GCP. The prepared GCP@Bi2O3 sensor successfully detected APAP in the linear concentration range from 0.05 to 12.00 μM, with the limit of quantification (LOQ) and the limit of detection (LOD) of 36 nM and 10 nM, respectively. Furthermore, the designed sensor showed pronounced precision, repeatability, and selectivity toward APAP detection. The GCP@Bi2O3 sensor and associated DPV method demonstrated high accuracy, precision, and practical utility for real-time APAP quantification in pharmaceutical products like Caffetin®. A comparison of declared and measured APAP levels revealed excellent recovery rates, with minimal impact from other formulation components.
C3  - P26
T1  - Rod-Shaped α-Bi2O3: A Novel Electrode Material for Electrochemical Sensing of Acetaminophen in Pharmaceutical Formulations
UR  - https://hdl.handle.net/21.15107/rcub_cer_7847
ER  - 

@conference{
author = "Šuljagić, Marija and Anđelković, Ljubica and Đurđić, Slađana and Stanković, Dalibor and Kremenović, Aleksandar and Pavlović, Vladimir and Jeremić, Dejan",
year = "2024",
abstract = "A modified reverse co-precipitation method using glacial acetic acid to synthesize α-Bi2O3 structures is presented. The formation of an almost pure rod-like α- Bi2O3 microstructure was confirmed by X-ray powder diffraction and scanning and transmission electron microscopy analyses. A glassy carbon paste (GCP) electrode was modified with the obtained material in aim of development of an electrochemical sensor for acetaminophen (APAP) detection using differential pulse voltammetry (DPV). Cyclic voltammetry revealed better performance of the GCP@Bi2O3 electrode in comparison to the bare GCP. The prepared GCP@Bi2O3 sensor successfully detected APAP in the linear concentration range from 0.05 to 12.00 μM, with the limit of quantification (LOQ) and the limit of detection (LOD) of 36 nM and 10 nM, respectively. Furthermore, the designed sensor showed pronounced precision, repeatability, and selectivity toward APAP detection. The GCP@Bi2O3 sensor and associated DPV method demonstrated high accuracy, precision, and practical utility for real-time APAP quantification in pharmaceutical products like Caffetin®. A comparison of declared and measured APAP levels revealed excellent recovery rates, with minimal impact from other formulation components.",
journal = "P26",
title = "Rod-Shaped α-Bi2O3: A Novel Electrode Material for Electrochemical Sensing of Acetaminophen in Pharmaceutical Formulations",
url = "https://hdl.handle.net/21.15107/rcub_cer_7847"
}

Šuljagić, M., Anđelković, L., Đurđić, S., Stanković, D., Kremenović, A., Pavlović, V.,& Jeremić, D.. (2024). Rod-Shaped α-Bi2O3: A Novel Electrode Material for Electrochemical Sensing of Acetaminophen in Pharmaceutical Formulations. in P26.
https://hdl.handle.net/21.15107/rcub_cer_7847

Šuljagić M, Anđelković L, Đurđić S, Stanković D, Kremenović A, Pavlović V, Jeremić D. Rod-Shaped α-Bi2O3: A Novel Electrode Material for Electrochemical Sensing of Acetaminophen in Pharmaceutical Formulations. in P26. 2024;.
https://hdl.handle.net/21.15107/rcub_cer_7847 .

Šuljagić, Marija, Anđelković, Ljubica, Đurđić, Slađana, Stanković, Dalibor, Kremenović, Aleksandar, Pavlović, Vladimir, Jeremić, Dejan, "Rod-Shaped α-Bi2O3: A Novel Electrode Material for Electrochemical Sensing of Acetaminophen in Pharmaceutical Formulations" in P26 (2024),
https://hdl.handle.net/21.15107/rcub_cer_7847 .

TY  - JOUR
AU  - Lazarević, Zorica Ž.
AU  - Milutinović, Aleksandra
AU  - Umićević, Ana
AU  - Ivanovski, Valentin N.
AU  - Koteski, Vasil
AU  - Anđelković, Ljubica
AU  - Romčević, Nebojša
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7837
AB  - The powdery cobalt ferrite (CoFe2O4) is prepared by coprecipitation followed by mechanochemical synthesis in a planetary ball mill. Obtained nanomaterial has been studied using a variety of characterization techniques: X-ray diffraction (XRD), Raman spectroscopy, far infrared (FIR) reflectivity and attenuated total reflectance (ATR) in combination with Fourier transform infrared (FTIR) spectroscopy in mid IR spectra. The investigated CoFe2O4 nanomaterial showed a typical XRD pattern of cubic spinel. In the Raman and IR spectra are observed all of first-order Raman and IR active modes. Weak sub bands activated by structure disorder are seen also. Since nano-CoFe2O4 is macroscopically cubic, its main Raman and IR modes are assigned as in normal cubic spinel. Raman spectrum is fitted with 8 Lorentzian peaks. It is observed that the value of x  0.58 obtained from Raman spectrum, is in good agreement with the value obtained by XRD-structural analysis (0.51). To analyze the IR spectra, we used Decoupled Plasmon - Phonon (DPP) model of the complex dielectric function. Measurement of magnetization in the range of magnetic fields H>>Hc enable the calculation of the anisotropy coefficient K1 = 4.02·105 J cm-3 , which is very high in cobalt ferrite. The 57Fe-Mössbauer spectrum of the CoFe2O4 sample was measured at room temperature in ± 12 mm s-1 Doppler velocity range. The 57Fe-Mössbauer spectrum of the CoFe2O4 sample was fitted with the extended Voigt-based fitting method.
PB  - INOE, Romania
T2  - Optoelectronics and Advanced Materials – Rapid Communications
T1  - Mössbauer spectroscopy study of nanosized spinel CoFe2O4 ferrite obtained during coprecipitation followed by mechanochemical treatment
VL  - 18
IS  - 5-6
SP  - 289
EP  - 295
UR  - https://hdl.handle.net/21.15107/rcub_cer_7837
ER  - 

@article{
author = "Lazarević, Zorica Ž. and Milutinović, Aleksandra and Umićević, Ana and Ivanovski, Valentin N. and Koteski, Vasil and Anđelković, Ljubica and Romčević, Nebojša",
year = "2024",
abstract = "The powdery cobalt ferrite (CoFe2O4) is prepared by coprecipitation followed by mechanochemical synthesis in a planetary ball mill. Obtained nanomaterial has been studied using a variety of characterization techniques: X-ray diffraction (XRD), Raman spectroscopy, far infrared (FIR) reflectivity and attenuated total reflectance (ATR) in combination with Fourier transform infrared (FTIR) spectroscopy in mid IR spectra. The investigated CoFe2O4 nanomaterial showed a typical XRD pattern of cubic spinel. In the Raman and IR spectra are observed all of first-order Raman and IR active modes. Weak sub bands activated by structure disorder are seen also. Since nano-CoFe2O4 is macroscopically cubic, its main Raman and IR modes are assigned as in normal cubic spinel. Raman spectrum is fitted with 8 Lorentzian peaks. It is observed that the value of x  0.58 obtained from Raman spectrum, is in good agreement with the value obtained by XRD-structural analysis (0.51). To analyze the IR spectra, we used Decoupled Plasmon - Phonon (DPP) model of the complex dielectric function. Measurement of magnetization in the range of magnetic fields H>>Hc enable the calculation of the anisotropy coefficient K1 = 4.02·105 J cm-3 , which is very high in cobalt ferrite. The 57Fe-Mössbauer spectrum of the CoFe2O4 sample was measured at room temperature in ± 12 mm s-1 Doppler velocity range. The 57Fe-Mössbauer spectrum of the CoFe2O4 sample was fitted with the extended Voigt-based fitting method.",
publisher = "INOE, Romania",
journal = "Optoelectronics and Advanced Materials – Rapid Communications",
title = "Mössbauer spectroscopy study of nanosized spinel CoFe2O4 ferrite obtained during coprecipitation followed by mechanochemical treatment",
volume = "18",
number = "5-6",
pages = "289-295",
url = "https://hdl.handle.net/21.15107/rcub_cer_7837"
}

Lazarević, Z. Ž., Milutinović, A., Umićević, A., Ivanovski, V. N., Koteski, V., Anđelković, L.,& Romčević, N.. (2024). Mössbauer spectroscopy study of nanosized spinel CoFe2O4 ferrite obtained during coprecipitation followed by mechanochemical treatment. in Optoelectronics and Advanced Materials – Rapid Communications
INOE, Romania., 18(5-6), 289-295.
https://hdl.handle.net/21.15107/rcub_cer_7837

Lazarević ZŽ, Milutinović A, Umićević A, Ivanovski VN, Koteski V, Anđelković L, Romčević N. Mössbauer spectroscopy study of nanosized spinel CoFe2O4 ferrite obtained during coprecipitation followed by mechanochemical treatment. in Optoelectronics and Advanced Materials – Rapid Communications. 2024;18(5-6):289-295.
https://hdl.handle.net/21.15107/rcub_cer_7837 .

Lazarević, Zorica Ž., Milutinović, Aleksandra, Umićević, Ana, Ivanovski, Valentin N., Koteski, Vasil, Anđelković, Ljubica, Romčević, Nebojša, "Mössbauer spectroscopy study of nanosized spinel CoFe2O4 ferrite obtained during coprecipitation followed by mechanochemical treatment" in Optoelectronics and Advanced Materials – Rapid Communications, 18, no. 5-6 (2024):289-295,
https://hdl.handle.net/21.15107/rcub_cer_7837 .

TY  - JOUR
AU  - Lazarević, Zorica
AU  - Milutinović, Aleksandra
AU  - Anđelković, Ljubica
AU  - Petrović, Milica
AU  - Hadžić, Branka
AU  - Romčević, Maja
AU  - Trajić, Jelena
AU  - Romčević, Nebojša
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7658
AB  - Single phase cobalt ferrite (CoFe2O4) with nanoparticles of similar sizes (15.7-19 nm) was obtained by different synthesis methods: coprecipitation, ultrasonically assisted coprecipitation, coprecipitation followed by mechanochemical treatment, microemulsion and microwave assisted hydrothermal synthesis. The obtained CoFe2O4 samples have been studied using a variety of characterization techniques: X-ray diffraction (XRD), Raman spectroscopy, far infrared (FIR) reflectivity and attenuated total reflectance (ATR) in combination with Fourier-transform infrared (FTIR) spectroscopy in mid IR spectra. Different methods of synthesis produced nanoparticles with different lattice constants, internal stresses and different cation inversion values. This is confirmed in the subtle changes in the Raman and IR spectra of different CoFe2O4 nano-powders. The Raman spectra of CoFe2O4 were compared with the spectra of other ferrites and some cubic oxide spinels in an attempt to evaluate the contribution of tetrahedral and octahedral oscillations in certain Raman modes.
AB  - Монофазни кобалт ферит са наночестицама сличних величина (15,7-19 нанометара) добијен је различитим методама синтезе: копреципитацијом, ултразвучно потпомогнутом копреципитацијом, копреципитацијом праћеном механохемијском синтезом, микроемулзијом и микроталасном хидротермалном синтезом. Добијени узорци кобалт ферита су проучавани коришћењем различитих техника карактеризације: дифракцијом рендгенских зрака на праху, Раман спектроскопијом, рефлексијом у далекој инфра-црвеној области (ИЦ) и методом апсорпције при вишеструкој тоталној рефлексији у комбинацији са инфра-црвеном спектроскопијом (АТР-ИЦ) у средњој инфра црвеној области. Различитим методама синтезе добијене су наночестице са различитим константама решетке, унутрашњим напрезањима и различитим вредностима инверзије катјона. Ово је потврђено у суптилним променама у Раман и ИЦ спектрима различитих нано-прахова кобалт ферита. Раман спектри кобалт ферита упоређени су са спектрима других ферита и неких кубних оксидних спинела у покушају да се процени утицај удела тетраедарских и октаедарских осцилација у одређеним Раман модовима.
PB  - Association for ETRAN Society
T2  - Science of Sintering
T1  - Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels
T1  - Kарактеризација наночестица кобалт ферита добијених различитим методама синтезе и поређење са Рамановим спектрима других ферита и неких кубичних оксидних спинела
VL  - 56
SP  - 171
EP  - 200
DO  - 10.2298/SOS230322035L
ER  - 

@article{
author = "Lazarević, Zorica and Milutinović, Aleksandra and Anđelković, Ljubica and Petrović, Milica and Hadžić, Branka and Romčević, Maja and Trajić, Jelena and Romčević, Nebojša",
year = "2024",
abstract = "Single phase cobalt ferrite (CoFe2O4) with nanoparticles of similar sizes (15.7-19 nm) was obtained by different synthesis methods: coprecipitation, ultrasonically assisted coprecipitation, coprecipitation followed by mechanochemical treatment, microemulsion and microwave assisted hydrothermal synthesis. The obtained CoFe2O4 samples have been studied using a variety of characterization techniques: X-ray diffraction (XRD), Raman spectroscopy, far infrared (FIR) reflectivity and attenuated total reflectance (ATR) in combination with Fourier-transform infrared (FTIR) spectroscopy in mid IR spectra. Different methods of synthesis produced nanoparticles with different lattice constants, internal stresses and different cation inversion values. This is confirmed in the subtle changes in the Raman and IR spectra of different CoFe2O4 nano-powders. The Raman spectra of CoFe2O4 were compared with the spectra of other ferrites and some cubic oxide spinels in an attempt to evaluate the contribution of tetrahedral and octahedral oscillations in certain Raman modes., Монофазни кобалт ферит са наночестицама сличних величина (15,7-19 нанометара) добијен је различитим методама синтезе: копреципитацијом, ултразвучно потпомогнутом копреципитацијом, копреципитацијом праћеном механохемијском синтезом, микроемулзијом и микроталасном хидротермалном синтезом. Добијени узорци кобалт ферита су проучавани коришћењем различитих техника карактеризације: дифракцијом рендгенских зрака на праху, Раман спектроскопијом, рефлексијом у далекој инфра-црвеној области (ИЦ) и методом апсорпције при вишеструкој тоталној рефлексији у комбинацији са инфра-црвеном спектроскопијом (АТР-ИЦ) у средњој инфра црвеној области. Различитим методама синтезе добијене су наночестице са различитим константама решетке, унутрашњим напрезањима и различитим вредностима инверзије катјона. Ово је потврђено у суптилним променама у Раман и ИЦ спектрима различитих нано-прахова кобалт ферита. Раман спектри кобалт ферита упоређени су са спектрима других ферита и неких кубних оксидних спинела у покушају да се процени утицај удела тетраедарских и октаедарских осцилација у одређеним Раман модовима.",
publisher = "Association for ETRAN Society",
journal = "Science of Sintering",
title = "Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels, Kарактеризација наночестица кобалт ферита добијених различитим методама синтезе и поређење са Рамановим спектрима других ферита и неких кубичних оксидних спинела",
volume = "56",
pages = "171-200",
doi = "10.2298/SOS230322035L"
}

Lazarević, Z., Milutinović, A., Anđelković, L., Petrović, M., Hadžić, B., Romčević, M., Trajić, J.,& Romčević, N.. (2024). Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels. in Science of Sintering
Association for ETRAN Society., 56, 171-200.
https://doi.org/10.2298/SOS230322035L

Lazarević Z, Milutinović A, Anđelković L, Petrović M, Hadžić B, Romčević M, Trajić J, Romčević N. Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels. in Science of Sintering. 2024;56:171-200.
doi:10.2298/SOS230322035L .

Lazarević, Zorica, Milutinović, Aleksandra, Anđelković, Ljubica, Petrović, Milica, Hadžić, Branka, Romčević, Maja, Trajić, Jelena, Romčević, Nebojša, "Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels" in Science of Sintering, 56 (2024):171-200,
https://doi.org/10.2298/SOS230322035L . .

TY  - JOUR
AU  - Lazarević, Zorica
AU  - Milutinović, Aleksandra
AU  - Umićević, Ana
AU  - Ivanovski, Valentin
AU  - Koteski, Vasil
AU  - Anđelković, Ljubica
AU  - Romčević, Nebojša
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7659
AB  - The powdery cobalt ferrite (CoFe2O4) is prepared by coprecipitation followed by mechanochemical synthesis in a planetary ball mill. Obtained nanomaterial has been studied using a variety of characterization techniques: X-ray diffraction (XRD), Raman spectroscopy, far infrared (FIR) reflectivity and attenuated total reflectance (ATR) in combination with Fourier-transform infrared (FTIR) spectroscopy in mid IR spectra. The investigated CoFe2O4 nanomaterial showed a typical XRD pattern of cubic spinel. In the Raman and IR spectra are observed all of first-order Raman and IR active modes. Weak sub-bands activated by structure disorder are seen also. Since nano-CoFe2O4 is macroscopically cubic, its main Raman and IR modes are assigned as in normal cubic spinel. Raman spectrum is fitted with 8 Lorentzian peaks. It is observed that the value of x 0.58 obtained from Raman spectrum, is in good agreement with the value obtained by XRD-structural analysis (0.51). To analyze the IR spectra, we used Decoupled Plasmon - Phonon (DPP) model of the complex dielectric function. Measurement of magnetization in the range of magnetic fields H>>Hc enable the calculation of the anisotropy coefficient K1 = 4.02·105 J cm-3, which is very high in cobalt ferrite. The 57Fe-Mössbauer spectrum of the CoFe2O4 sample was measured at room temperature in ± 12 mm s-1 Doppler velocity range. The 57Fe-Mössbauer spectrum of the CoFe2O4 sample was fitted with the extended Voigt-based fitting method.
PB  - INOE, Romania
T2  - Optoelectronics and Advanced Materials – Rapid Communications
T1  - Mössbauer spectroscopy study of nanosized spinel CoFe2O4 ferrite obtained during coprecipitation followed by mechanochemical treatment
VL  - 18
IS  - 5-6
SP  - 289
EP  - 295
UR  - https://hdl.handle.net/21.15107/rcub_cer_7659
ER  - 

@article{
author = "Lazarević, Zorica and Milutinović, Aleksandra and Umićević, Ana and Ivanovski, Valentin and Koteski, Vasil and Anđelković, Ljubica and Romčević, Nebojša",
year = "2024",
abstract = "The powdery cobalt ferrite (CoFe2O4) is prepared by coprecipitation followed by mechanochemical synthesis in a planetary ball mill. Obtained nanomaterial has been studied using a variety of characterization techniques: X-ray diffraction (XRD), Raman spectroscopy, far infrared (FIR) reflectivity and attenuated total reflectance (ATR) in combination with Fourier-transform infrared (FTIR) spectroscopy in mid IR spectra. The investigated CoFe2O4 nanomaterial showed a typical XRD pattern of cubic spinel. In the Raman and IR spectra are observed all of first-order Raman and IR active modes. Weak sub-bands activated by structure disorder are seen also. Since nano-CoFe2O4 is macroscopically cubic, its main Raman and IR modes are assigned as in normal cubic spinel. Raman spectrum is fitted with 8 Lorentzian peaks. It is observed that the value of x 0.58 obtained from Raman spectrum, is in good agreement with the value obtained by XRD-structural analysis (0.51). To analyze the IR spectra, we used Decoupled Plasmon - Phonon (DPP) model of the complex dielectric function. Measurement of magnetization in the range of magnetic fields H>>Hc enable the calculation of the anisotropy coefficient K1 = 4.02·105 J cm-3, which is very high in cobalt ferrite. The 57Fe-Mössbauer spectrum of the CoFe2O4 sample was measured at room temperature in ± 12 mm s-1 Doppler velocity range. The 57Fe-Mössbauer spectrum of the CoFe2O4 sample was fitted with the extended Voigt-based fitting method.",
publisher = "INOE, Romania",
journal = "Optoelectronics and Advanced Materials – Rapid Communications",
title = "Mössbauer spectroscopy study of nanosized spinel CoFe2O4 ferrite obtained during coprecipitation followed by mechanochemical treatment",
volume = "18",
number = "5-6",
pages = "289-295",
url = "https://hdl.handle.net/21.15107/rcub_cer_7659"
}

Lazarević, Z., Milutinović, A., Umićević, A., Ivanovski, V., Koteski, V., Anđelković, L.,& Romčević, N.. (2024). Mössbauer spectroscopy study of nanosized spinel CoFe2O4 ferrite obtained during coprecipitation followed by mechanochemical treatment. in Optoelectronics and Advanced Materials – Rapid Communications
INOE, Romania., 18(5-6), 289-295.
https://hdl.handle.net/21.15107/rcub_cer_7659

Lazarević Z, Milutinović A, Umićević A, Ivanovski V, Koteski V, Anđelković L, Romčević N. Mössbauer spectroscopy study of nanosized spinel CoFe2O4 ferrite obtained during coprecipitation followed by mechanochemical treatment. in Optoelectronics and Advanced Materials – Rapid Communications. 2024;18(5-6):289-295.
https://hdl.handle.net/21.15107/rcub_cer_7659 .

Lazarević, Zorica, Milutinović, Aleksandra, Umićević, Ana, Ivanovski, Valentin, Koteski, Vasil, Anđelković, Ljubica, Romčević, Nebojša, "Mössbauer spectroscopy study of nanosized spinel CoFe2O4 ferrite obtained during coprecipitation followed by mechanochemical treatment" in Optoelectronics and Advanced Materials – Rapid Communications, 18, no. 5-6 (2024):289-295,
https://hdl.handle.net/21.15107/rcub_cer_7659 .

TY  - JOUR
AU  - Milutinović, Aleksandra
AU  - Lazarević, Zorica Ž.
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7825
AB  - This research examines the structural and magnetic properties of monodomain cobalt ferrite nanoparticles with the formula (Co1−xFex)A[Fe2−xCox]BO4. The particles were synthesized using various methods, including coprecipitation (with and without ultrasonic assistance), coprecipitation followed by mechanochemical treatment, microemulsion, and microwave-assisted hydrothermal techniques. The resulting materials were extensively analyzed using X-ray diffraction (XRD) and magnetic measurements to investigate how different synthesis methods affect the structure and cation distribution in nanoscale CoFe2O4. For particles ranging from 15.8 to 19.0 nm in size, the coercivity showed a near-linear increase from 302 Oe to 1195 Oe as particle size increased. Saturation magnetization values fell between 62.6 emu g−1 and 74.3 emu g−1, primarily influenced by the inversion coefficient x (0.58–0.85). XRD analysis revealed that as the larger Co2+ cations migrate from B- to A-sites (decreasing x), the lattice constants and inter-cation hopping distances increase, while the average strength of super-exchange interactions decreases. This study establishes a connection between the magnetic properties of the synthesized samples and their structural features. Importantly, this research demonstrates that careful selection of the synthesis method can be used to control the magnetic properties of these nanoparticles.
PB  - MDPI
T2  - Metals
T1  - Synthesis-Dependent Structural and Magnetic Properties of Monodomain Cobalt Ferrite Nanoparticles
VL  - 14
IS  - 7
SP  - 833
DO  - 10.3390/met14070833
ER  - 

@article{
author = "Milutinović, Aleksandra and Lazarević, Zorica Ž. and Šuljagić, Marija and Anđelković, Ljubica",
year = "2024",
abstract = "This research examines the structural and magnetic properties of monodomain cobalt ferrite nanoparticles with the formula (Co1−xFex)A[Fe2−xCox]BO4. The particles were synthesized using various methods, including coprecipitation (with and without ultrasonic assistance), coprecipitation followed by mechanochemical treatment, microemulsion, and microwave-assisted hydrothermal techniques. The resulting materials were extensively analyzed using X-ray diffraction (XRD) and magnetic measurements to investigate how different synthesis methods affect the structure and cation distribution in nanoscale CoFe2O4. For particles ranging from 15.8 to 19.0 nm in size, the coercivity showed a near-linear increase from 302 Oe to 1195 Oe as particle size increased. Saturation magnetization values fell between 62.6 emu g−1 and 74.3 emu g−1, primarily influenced by the inversion coefficient x (0.58–0.85). XRD analysis revealed that as the larger Co2+ cations migrate from B- to A-sites (decreasing x), the lattice constants and inter-cation hopping distances increase, while the average strength of super-exchange interactions decreases. This study establishes a connection between the magnetic properties of the synthesized samples and their structural features. Importantly, this research demonstrates that careful selection of the synthesis method can be used to control the magnetic properties of these nanoparticles.",
publisher = "MDPI",
journal = "Metals",
title = "Synthesis-Dependent Structural and Magnetic Properties of Monodomain Cobalt Ferrite Nanoparticles",
volume = "14",
number = "7",
pages = "833",
doi = "10.3390/met14070833"
}

Milutinović, A., Lazarević, Z. Ž., Šuljagić, M.,& Anđelković, L.. (2024). Synthesis-Dependent Structural and Magnetic Properties of Monodomain Cobalt Ferrite Nanoparticles. in Metals
MDPI., 14(7), 833.
https://doi.org/10.3390/met14070833

Milutinović A, Lazarević ZŽ, Šuljagić M, Anđelković L. Synthesis-Dependent Structural and Magnetic Properties of Monodomain Cobalt Ferrite Nanoparticles. in Metals. 2024;14(7):833.
doi:10.3390/met14070833 .

Milutinović, Aleksandra, Lazarević, Zorica Ž., Šuljagić, Marija, Anđelković, Ljubica, "Synthesis-Dependent Structural and Magnetic Properties of Monodomain Cobalt Ferrite Nanoparticles" in Metals, 14, no. 7 (2024):833,
https://doi.org/10.3390/met14070833 . .

TY  - JOUR
AU  - Mirković, Miljana
AU  - Maletaškić, Jelena
AU  - Butulija, Svetlana
AU  - Anđelković, Ljubica
AU  - Šuljagić, Marija
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7551
AB  - This paper shows a simple way to synthesize a series of Ce1-xSrxPO4 ceramic materials using acetate solutions of Ce and Sr instead of nitrate which were used so far. For synthesis, the preparation method was used by simple mixing of acetate solutions of Ceand Sr(, with NaH2PO4 at room temperature, and the studied compositions were Ce1-xSrxPO4 (where x = 0, 0.1, 0.2, 0.3, 0.4, 0.5). The disintegration of Sr in monazite structures in different sintering temperature ranges from 600°C to 1000°C was investigated. The X-ray diffraction was used to track the evolution of the phase composition with thermal treatment. The morphology of sintered ceramics was obtained by scanning electron microscopy and vibrational bands of selected spectra were observed using the FT-IR method. Relative geometric density of selected samples was evaluated. The most favorable conditions for obtaining high-temperature Ce, Sr phosphate-based ceramic material are reported.
AB  - У овом раду је приказан једноставан начин да се синтетише серија Ce1-xSrxPO4 керамичких материјала коришћењем ацетатних раствора Ce и Sr уместо до сада коришћених нитрата. За синтезу је коришћен метод припреме једноставним мешањем раствора Ce(C2H3O2)3·xH2O), Sr(C2H3O2)2, и NaH2PO4 као прекурсора на собној температури, а испитивани састави су Ce1-xSrxPO4 (где је к = 0 , 0,1, 0,2, 0,3, 0,4, 0,5). Испитивана је дезинтеграција Sr у структурама моназита у различитим температурним распонима синтеровања од 600 °C до 1000 °C. Дифракција рендгенских зрака на праху (XRD) је коришћена за праћење еволуције фазног састава синтетисаних и синтерованих узорака. Морфологија синтероване керамике испитивана је скенирајућом електронском микроскопијом (СЕМ), а вибрациое траке одабраних спектра су испитане ФТИР методом. Згушњавање и еволуција микроструктуре су одређене коришћењем релативне геометријске густине одабраних узорака. Приказани су најповољнији услови за добијање високотемпературног керамичког материјала на бази Ce, Sr фосфата.
PB  - Association for ETRAN Society
T2  - Science of Sintering
T1  - The influence of strontium content and sintering temperature on monazite stability
VL  - 56
SP  - 115
EP  - 121
DO  - 10.2298/SOS220811024M
ER  - 

@article{
author = "Mirković, Miljana and Maletaškić, Jelena and Butulija, Svetlana and Anđelković, Ljubica and Šuljagić, Marija",
year = "2024",
abstract = "This paper shows a simple way to synthesize a series of Ce1-xSrxPO4 ceramic materials using acetate solutions of Ce and Sr instead of nitrate which were used so far. For synthesis, the preparation method was used by simple mixing of acetate solutions of Ceand Sr(, with NaH2PO4 at room temperature, and the studied compositions were Ce1-xSrxPO4 (where x = 0, 0.1, 0.2, 0.3, 0.4, 0.5). The disintegration of Sr in monazite structures in different sintering temperature ranges from 600°C to 1000°C was investigated. The X-ray diffraction was used to track the evolution of the phase composition with thermal treatment. The morphology of sintered ceramics was obtained by scanning electron microscopy and vibrational bands of selected spectra were observed using the FT-IR method. Relative geometric density of selected samples was evaluated. The most favorable conditions for obtaining high-temperature Ce, Sr phosphate-based ceramic material are reported., У овом раду је приказан једноставан начин да се синтетише серија Ce1-xSrxPO4 керамичких материјала коришћењем ацетатних раствора Ce и Sr уместо до сада коришћених нитрата. За синтезу је коришћен метод припреме једноставним мешањем раствора Ce(C2H3O2)3·xH2O), Sr(C2H3O2)2, и NaH2PO4 као прекурсора на собној температури, а испитивани састави су Ce1-xSrxPO4 (где је к = 0 , 0,1, 0,2, 0,3, 0,4, 0,5). Испитивана је дезинтеграција Sr у структурама моназита у различитим температурним распонима синтеровања од 600 °C до 1000 °C. Дифракција рендгенских зрака на праху (XRD) је коришћена за праћење еволуције фазног састава синтетисаних и синтерованих узорака. Морфологија синтероване керамике испитивана је скенирајућом електронском микроскопијом (СЕМ), а вибрациое траке одабраних спектра су испитане ФТИР методом. Згушњавање и еволуција микроструктуре су одређене коришћењем релативне геометријске густине одабраних узорака. Приказани су најповољнији услови за добијање високотемпературног керамичког материјала на бази Ce, Sr фосфата.",
publisher = "Association for ETRAN Society",
journal = "Science of Sintering",
title = "The influence of strontium content and sintering temperature on monazite stability",
volume = "56",
pages = "115-121",
doi = "10.2298/SOS220811024M"
}

Mirković, M., Maletaškić, J., Butulija, S., Anđelković, L.,& Šuljagić, M.. (2024). The influence of strontium content and sintering temperature on monazite stability. in Science of Sintering
Association for ETRAN Society., 56, 115-121.
https://doi.org/10.2298/SOS220811024M

Mirković M, Maletaškić J, Butulija S, Anđelković L, Šuljagić M. The influence of strontium content and sintering temperature on monazite stability. in Science of Sintering. 2024;56:115-121.
doi:10.2298/SOS220811024M .

Mirković, Miljana, Maletaškić, Jelena, Butulija, Svetlana, Anđelković, Ljubica, Šuljagić, Marija, "The influence of strontium content and sintering temperature on monazite stability" in Science of Sintering, 56 (2024):115-121,
https://doi.org/10.2298/SOS220811024M . .

TY  - JOUR
AU  - Šuljagić, Marija
AU  - Petronijević, Ivan
AU  - Mirković, Miljana
AU  - Kremenović, Aleksandar
AU  - Džunuzović, Adis
AU  - Pavlović, Vladimir B.
AU  - Kalezić-Glišović, Aleksandra
AU  - Anđelković, Ljubica
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5865
AB  - To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ferroelectric properties were investigated. The optimal phase composition in the BaTiO3/NiFe2O4 composite, sintered at 1150 °C, resulted in a wide frequency range stability. Additionally, particular phase composition indicates favorable properties such as low conductivity and ideal-like hysteresis loop behavior. The favorable properties of BaTiO3/NiFe2O4 make this particular composite an ideal material choice for further studies on applications of multi-ferroic devices.
PB  - MDPI
T2  - Inorganics
T1  - BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties
VL  - 11
IS  - 2
SP  - 51
DO  - 10.3390/inorganics11020051
ER  - 

@article{
author = "Šuljagić, Marija and Petronijević, Ivan and Mirković, Miljana and Kremenović, Aleksandar and Džunuzović, Adis and Pavlović, Vladimir B. and Kalezić-Glišović, Aleksandra and Anđelković, Ljubica",
year = "2023",
abstract = "To investigate the influence of spinel structure and sintering temperature on the functional properties of BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface from acetylacetonate precursors. As-prepared powders were additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the detailed examination of phase composition and morphology. The magnetic, dielectric, and ferroelectric properties were investigated. The optimal phase composition in the BaTiO3/NiFe2O4 composite, sintered at 1150 °C, resulted in a wide frequency range stability. Additionally, particular phase composition indicates favorable properties such as low conductivity and ideal-like hysteresis loop behavior. The favorable properties of BaTiO3/NiFe2O4 make this particular composite an ideal material choice for further studies on applications of multi-ferroic devices.",
publisher = "MDPI",
journal = "Inorganics",
title = "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties",
volume = "11",
number = "2",
pages = "51",
doi = "10.3390/inorganics11020051"
}

Šuljagić, M., Petronijević, I., Mirković, M., Kremenović, A., Džunuzović, A., Pavlović, V. B., Kalezić-Glišović, A.,& Anđelković, L.. (2023). BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties. in Inorganics
MDPI., 11(2), 51.
https://doi.org/10.3390/inorganics11020051

Šuljagić M, Petronijević I, Mirković M, Kremenović A, Džunuzović A, Pavlović VB, Kalezić-Glišović A, Anđelković L. BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties. in Inorganics. 2023;11(2):51.
doi:10.3390/inorganics11020051 .

Šuljagić, Marija, Petronijević, Ivan, Mirković, Miljana, Kremenović, Aleksandar, Džunuzović, Adis, Pavlović, Vladimir B., Kalezić-Glišović, Aleksandra, Anđelković, Ljubica, "BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1) Composites Synthesized by Thermal Decomposition: Magnetic, Dielectric and Ferroelectric Properties" in Inorganics, 11, no. 2 (2023):51,
https://doi.org/10.3390/inorganics11020051 . .

TY  - CONF
AU  - Šuljagić, Marija
AU  - Petronijević, Ivan
AU  - Mirković, Miljana
AU  - Kremenović, Aleksandar
AU  - Džunuzović, Adis
AU  - Pavlović, Vladimir
AU  - Kalezić-Glišović, Aleksandra
AU  - Anđelković, Ljubica
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6328
AB  - In order to examine the influence of phase composition and sintering temperature on the functional properties of perovskite/spinel composites, BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface. Acetylacetonate complexes were used as the precursors. The obtained powders were compressed to pellets and sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the comprehensive investigation of phase composition and morphology. The magnetic, dielectric, and ferroelectric properties were performed in detail. The optimal phase composition was found in the BaTiO3/NiFe2O4 composite sintered at 1150 °C, which resulted in a wide frequency range stability. Furthermore, particular phase composition led to suitable properties such as low conductivity and ideal-like hysteresis loop behavior [1]. These functional properties of BaTiO3/NiFe2O4 make this composite a “material of choice“ for further studies on applications of multiferroic devices.
AB  - U cilju ispitivanja uticaja faznog sastava i temperature sinterovanja na funkcionalna svojstva perovskit/spinel kompozita BaTiO3/NixZn1−xFe2O4 (x = 0, 0,5, 1), NiFe2O4, ZnFe2O4, i Ni0,5Zn0,5Fe2O4 pripremljeni su in situ metodom termalne dekompozicije. U sintezi su korišćeni acetilacetonatni kompleksi kao prekursori. Dobijeni prahovi su komprimovani u tablete i sinterovani na 1150 °C i 1300 °C. Za detaljno ispitivanje faznog sastava i morfologije sintetisanih kompozita korišćene su metode rendgenske difrakcije praha (XRPD) i skenirajuće elektronske mikroskopije (SEM) spregnute sa energetsko disperzivnom spektroskopijom (EDS). Ispitivana su i magnetna, dielektrična i feroelektrična svojstva sinterovanih kompozita. Ustanovljeno je da optimalni fazni sastav pronađen kod kompozita BaTiO3/NiFe2O4 sinterovanog na 1150 °C dovodi do stabilnosti u širokom opsegu frekvencija. Optimalni fazni sastav pomenutog kompozita povoljno je uticao na funkcionalna svojstva kao što su niska provodnost i feroelektrično ponašenje koje se ogleda u zadovoljavajućem izgledu histerezisa [1]. Ova svojstva nedvosmisleno ukazuju da je kompozit BaTiO3/NiFe2O4 odgovarajući izbor za dalja istraživanja posvećena primeni multiferoičnih materijala.
PB  - Belgrade, Serbia : Serbian Cristallographic Soceity / Beograd, Srbija : Srpsko kristalografsko društvo
C3  - 28th Conference of the Serbian Crystallographic Society - Abstracts, June 14–15th, 2023 Čačak, Serbia / XXVIII Konferencija Srpskog kristalografskog društva - Izvodi radova, Jun 14–15, 2023 Čačak, Srbija
T1  - BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) composites synthesized by thermal decomposition: The influence of phase composition and sintering temperature on their physical properties
T1  - Uticaj faznog sastava i temperature sinterovanja na fizička svojstva BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) kompozita sintetisanih metodom termalne dekompozicije
SP  - 36
EP  - 37
UR  - https://hdl.handle.net/21.15107/rcub_cer_6328
ER  - 

@conference{
author = "Šuljagić, Marija and Petronijević, Ivan and Mirković, Miljana and Kremenović, Aleksandar and Džunuzović, Adis and Pavlović, Vladimir and Kalezić-Glišović, Aleksandra and Anđelković, Ljubica",
year = "2023",
abstract = "In order to examine the influence of phase composition and sintering temperature on the functional properties of perovskite/spinel composites, BaTiO3/NixZn1−xFe2O4 (x = 0, 0.5, 1), NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in situ prepared by thermal decomposition onto BaTiO3 surface. Acetylacetonate complexes were used as the precursors. The obtained powders were compressed to pellets and sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the comprehensive investigation of phase composition and morphology. The magnetic, dielectric, and ferroelectric properties were performed in detail. The optimal phase composition was found in the BaTiO3/NiFe2O4 composite sintered at 1150 °C, which resulted in a wide frequency range stability. Furthermore, particular phase composition led to suitable properties such as low conductivity and ideal-like hysteresis loop behavior [1]. These functional properties of BaTiO3/NiFe2O4 make this composite a “material of choice“ for further studies on applications of multiferroic devices., U cilju ispitivanja uticaja faznog sastava i temperature sinterovanja na funkcionalna svojstva perovskit/spinel kompozita BaTiO3/NixZn1−xFe2O4 (x = 0, 0,5, 1), NiFe2O4, ZnFe2O4, i Ni0,5Zn0,5Fe2O4 pripremljeni su in situ metodom termalne dekompozicije. U sintezi su korišćeni acetilacetonatni kompleksi kao prekursori. Dobijeni prahovi su komprimovani u tablete i sinterovani na 1150 °C i 1300 °C. Za detaljno ispitivanje faznog sastava i morfologije sintetisanih kompozita korišćene su metode rendgenske difrakcije praha (XRPD) i skenirajuće elektronske mikroskopije (SEM) spregnute sa energetsko disperzivnom spektroskopijom (EDS). Ispitivana su i magnetna, dielektrična i feroelektrična svojstva sinterovanih kompozita. Ustanovljeno je da optimalni fazni sastav pronađen kod kompozita BaTiO3/NiFe2O4 sinterovanog na 1150 °C dovodi do stabilnosti u širokom opsegu frekvencija. Optimalni fazni sastav pomenutog kompozita povoljno je uticao na funkcionalna svojstva kao što su niska provodnost i feroelektrično ponašenje koje se ogleda u zadovoljavajućem izgledu histerezisa [1]. Ova svojstva nedvosmisleno ukazuju da je kompozit BaTiO3/NiFe2O4 odgovarajući izbor za dalja istraživanja posvećena primeni multiferoičnih materijala.",
publisher = "Belgrade, Serbia : Serbian Cristallographic Soceity / Beograd, Srbija : Srpsko kristalografsko društvo",
journal = "28th Conference of the Serbian Crystallographic Society - Abstracts, June 14–15th, 2023 Čačak, Serbia / XXVIII Konferencija Srpskog kristalografskog društva - Izvodi radova, Jun 14–15, 2023 Čačak, Srbija",
title = "BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) composites synthesized by thermal decomposition: The influence of phase composition and sintering temperature on their physical properties, Uticaj faznog sastava i temperature sinterovanja na fizička svojstva BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) kompozita sintetisanih metodom termalne dekompozicije",
pages = "36-37",
url = "https://hdl.handle.net/21.15107/rcub_cer_6328"
}

Šuljagić, M., Petronijević, I., Mirković, M., Kremenović, A., Džunuzović, A., Pavlović, V., Kalezić-Glišović, A.,& Anđelković, L.. (2023). BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) composites synthesized by thermal decomposition: The influence of phase composition and sintering temperature on their physical properties. in 28th Conference of the Serbian Crystallographic Society - Abstracts, June 14–15th, 2023 Čačak, Serbia / XXVIII Konferencija Srpskog kristalografskog društva - Izvodi radova, Jun 14–15, 2023 Čačak, Srbija
Belgrade, Serbia : Serbian Cristallographic Soceity / Beograd, Srbija : Srpsko kristalografsko društvo., 36-37.
https://hdl.handle.net/21.15107/rcub_cer_6328

Šuljagić M, Petronijević I, Mirković M, Kremenović A, Džunuzović A, Pavlović V, Kalezić-Glišović A, Anđelković L. BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) composites synthesized by thermal decomposition: The influence of phase composition and sintering temperature on their physical properties. in 28th Conference of the Serbian Crystallographic Society - Abstracts, June 14–15th, 2023 Čačak, Serbia / XXVIII Konferencija Srpskog kristalografskog društva - Izvodi radova, Jun 14–15, 2023 Čačak, Srbija. 2023;:36-37.
https://hdl.handle.net/21.15107/rcub_cer_6328 .

Šuljagić, Marija, Petronijević, Ivan, Mirković, Miljana, Kremenović, Aleksandar, Džunuzović, Adis, Pavlović, Vladimir, Kalezić-Glišović, Aleksandra, Anđelković, Ljubica, "BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) composites synthesized by thermal decomposition: The influence of phase composition and sintering temperature on their physical properties" in 28th Conference of the Serbian Crystallographic Society - Abstracts, June 14–15th, 2023 Čačak, Serbia / XXVIII Konferencija Srpskog kristalografskog društva - Izvodi radova, Jun 14–15, 2023 Čačak, Srbija (2023):36-37,
https://hdl.handle.net/21.15107/rcub_cer_6328 .

TY  - JOUR
AU  - Šuljagić, Marija
AU  - Kremenović, Aleksandar
AU  - Petronijević, Ivan
AU  - Džunuzović, Adis
AU  - Mirković, Miljana
AU  - Pavlović, Vladimir
AU  - Anđelković, Ljubica
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6643
AB  - To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the samples sintered at 1300°C had better performances than those sintered at 1150°C. The composite synthesized by thermal decomposition and sintered at 1300 °C stands out among other prepared BaTiO3/CoFe2O4 ceramics, owing to high stability in the wide frequency range and low leakage currents. The obtained results indicate that such composite might be successfully applied as a functional multiferroic.
AB  - У циљу испитивања утицаја методе синтезе као и температуре синтеровања на функционална својства керамике перовскитно/спинелне структуре, синтетисани су BaTiO3/CoFe2O4 композити методама термалне декомпозиције, копреципитације и микроемулзије, а затим синтеровани на 1150 °C и 1300 °C. Фазни састав и морфологија синтетисаних узорака детаљно су испитани пре и после синтеровања помоћу рендгенске дифракције на праху (XRPD) и скенирајуће електронске микроскпије (SEM) спрегнуте са елекрон дисперзивном спектроскопијом (EDS). Изведена су опсежна испитивања како диелектричних, тако и фероелектричних својстава датих композита. У већини случајева узорци синтеровани на 1300 °C показали су боља својства од узорака синтерованих на 1150 °C. Композит синтетисан методом термалне декомпозиције и синтерован на 1300 °C издваја се од осталих синтетисаних BaTiO3/CoFe2O4 узорака захваљујући великој стабилносту у широком фреквентном опсегу и малим струјама цурења. Добијени резултати недвосмислено указују да истакнути композит може бити успешно примењен као функционални мултифероик.
PB  - Association for ETRAN Society
T2  - Science of Sintering
T1  - Understanding the  Effect of Synthesis and Sintering Temperature on the Functional Properties of Barium Titanate/ Cobalt Ferrite  Composites
VL  - 55
SP  - 367
EP  - 381
DO  - 10.2298/SOS220512013S
ER  - 

@article{
author = "Šuljagić, Marija and Kremenović, Aleksandar and Petronijević, Ivan and Džunuzović, Adis and Mirković, Miljana and Pavlović, Vladimir and Anđelković, Ljubica",
year = "2023",
abstract = "To investigate the effect of synthesis procedure and sintering temperature on the functional properties of perovskite/spinel ceramics, BaTiO3/CoFe2O4 composites were prepared by thermal decomposition, coprecipitation, and microemulsion method, and sintered at 1150°C and 1300°C. The phase composition and morphology of as-prepared powders as well as sintered ceramics were thoroughly examined by X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS). The dielectric and ferroelectric measurements were performed in detail. Generally, the samples sintered at 1300°C had better performances than those sintered at 1150°C. The composite synthesized by thermal decomposition and sintered at 1300 °C stands out among other prepared BaTiO3/CoFe2O4 ceramics, owing to high stability in the wide frequency range and low leakage currents. The obtained results indicate that such composite might be successfully applied as a functional multiferroic., У циљу испитивања утицаја методе синтезе као и температуре синтеровања на функционална својства керамике перовскитно/спинелне структуре, синтетисани су BaTiO3/CoFe2O4 композити методама термалне декомпозиције, копреципитације и микроемулзије, а затим синтеровани на 1150 °C и 1300 °C. Фазни састав и морфологија синтетисаних узорака детаљно су испитани пре и после синтеровања помоћу рендгенске дифракције на праху (XRPD) и скенирајуће електронске микроскпије (SEM) спрегнуте са елекрон дисперзивном спектроскопијом (EDS). Изведена су опсежна испитивања како диелектричних, тако и фероелектричних својстава датих композита. У већини случајева узорци синтеровани на 1300 °C показали су боља својства од узорака синтерованих на 1150 °C. Композит синтетисан методом термалне декомпозиције и синтерован на 1300 °C издваја се од осталих синтетисаних BaTiO3/CoFe2O4 узорака захваљујући великој стабилносту у широком фреквентном опсегу и малим струјама цурења. Добијени резултати недвосмислено указују да истакнути композит може бити успешно примењен као функционални мултифероик.",
publisher = "Association for ETRAN Society",
journal = "Science of Sintering",
title = "Understanding the  Effect of Synthesis and Sintering Temperature on the Functional Properties of Barium Titanate/ Cobalt Ferrite  Composites",
volume = "55",
pages = "367-381",
doi = "10.2298/SOS220512013S"
}

Šuljagić, M., Kremenović, A., Petronijević, I., Džunuzović, A., Mirković, M., Pavlović, V.,& Anđelković, L.. (2023). Understanding the  Effect of Synthesis and Sintering Temperature on the Functional Properties of Barium Titanate/ Cobalt Ferrite  Composites. in Science of Sintering
Association for ETRAN Society., 55, 367-381.
https://doi.org/10.2298/SOS220512013S

Šuljagić M, Kremenović A, Petronijević I, Džunuzović A, Mirković M, Pavlović V, Anđelković L. Understanding the  Effect of Synthesis and Sintering Temperature on the Functional Properties of Barium Titanate/ Cobalt Ferrite  Composites. in Science of Sintering. 2023;55:367-381.
doi:10.2298/SOS220512013S .

Šuljagić, Marija, Kremenović, Aleksandar, Petronijević, Ivan, Džunuzović, Adis, Mirković, Miljana, Pavlović, Vladimir, Anđelković, Ljubica, "Understanding the  Effect of Synthesis and Sintering Temperature on the Functional Properties of Barium Titanate/ Cobalt Ferrite  Composites" in Science of Sintering, 55 (2023):367-381,
https://doi.org/10.2298/SOS220512013S . .

TY  - CONF
AU  - Mirković, Miljana
AU  - Sknepnek, Aleksandra
AU  - Miletić, Dunja
AU  - Pavlović, Vladimir
AU  - Đukić, Dunja
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6783
AB  - Hydroxyapatite Ca10(PO4)6(OH)2 - HAp presents natural construction material for bones and teeth and therefore is considered biocompatible, and has various applications in fields such as biomedicine, drug delivery, and as a biomarker. Considering nanoceramics' high specific surface area and antimicrobial activity, they can be used as potential antimicrobial materials. Bacterial cellulose (BC) is a biopolymer that stands out in its biodegradability, biocompatibility, and high water retention capacity, but also lacks functional properties. The main goal of this study is to create a newly designed composite material with the functionalization of cellulose by hydroxyapatite with antimicrobial properties. Hydroxyapatite material was incorporated in wet cellulose during the precipitation synthesis reaction. Obtained BC-HAp material was structurally and phase investigated by the XRD method. The morphology of obtained material was done by SEM, and appropriate functional groups were determined by the FTIR method. According to antimicrobial results investigated composite is shown proper antimicrobial activity.
PB  - Faculty of Technology, University of Novi Sad, Bul. cara Lazara 1, 21000 Novi Sad, Serbia
C3  - Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad
T1  - Synthesis and characterization of cellulose-hydroxyapatite composite material with proper antimicrobial properties
SP  - 70
EP  - 70
UR  - https://hdl.handle.net/21.15107/rcub_cer_6783
ER  - 

@conference{
author = "Mirković, Miljana and Sknepnek, Aleksandra and Miletić, Dunja and Pavlović, Vladimir and Đukić, Dunja and Šuljagić, Marija and Anđelković, Ljubica",
year = "2023",
abstract = "Hydroxyapatite Ca10(PO4)6(OH)2 - HAp presents natural construction material for bones and teeth and therefore is considered biocompatible, and has various applications in fields such as biomedicine, drug delivery, and as a biomarker. Considering nanoceramics' high specific surface area and antimicrobial activity, they can be used as potential antimicrobial materials. Bacterial cellulose (BC) is a biopolymer that stands out in its biodegradability, biocompatibility, and high water retention capacity, but also lacks functional properties. The main goal of this study is to create a newly designed composite material with the functionalization of cellulose by hydroxyapatite with antimicrobial properties. Hydroxyapatite material was incorporated in wet cellulose during the precipitation synthesis reaction. Obtained BC-HAp material was structurally and phase investigated by the XRD method. The morphology of obtained material was done by SEM, and appropriate functional groups were determined by the FTIR method. According to antimicrobial results investigated composite is shown proper antimicrobial activity.",
publisher = "Faculty of Technology, University of Novi Sad, Bul. cara Lazara 1, 21000 Novi Sad, Serbia",
journal = "Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad",
title = "Synthesis and characterization of cellulose-hydroxyapatite composite material with proper antimicrobial properties",
pages = "70-70",
url = "https://hdl.handle.net/21.15107/rcub_cer_6783"
}

Mirković, M., Sknepnek, A., Miletić, D., Pavlović, V., Đukić, D., Šuljagić, M.,& Anđelković, L.. (2023). Synthesis and characterization of cellulose-hydroxyapatite composite material with proper antimicrobial properties. in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad
Faculty of Technology, University of Novi Sad, Bul. cara Lazara 1, 21000 Novi Sad, Serbia., 70-70.
https://hdl.handle.net/21.15107/rcub_cer_6783

Mirković M, Sknepnek A, Miletić D, Pavlović V, Đukić D, Šuljagić M, Anđelković L. Synthesis and characterization of cellulose-hydroxyapatite composite material with proper antimicrobial properties. in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad. 2023;:70-70.
https://hdl.handle.net/21.15107/rcub_cer_6783 .

Mirković, Miljana, Sknepnek, Aleksandra, Miletić, Dunja, Pavlović, Vladimir, Đukić, Dunja, Šuljagić, Marija, Anđelković, Ljubica, "Synthesis and characterization of cellulose-hydroxyapatite composite material with proper antimicrobial properties" in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad (2023):70-70,
https://hdl.handle.net/21.15107/rcub_cer_6783 .

TY  - CONF
AU  - Pavlović, Vladimir B.
AU  - Vuković, G.
AU  - Nikolić, M.
AU  - Pavlović, Vera P.
AU  - Perić, M.
AU  - Nenadović, S.
AU  - Ivanović, M.
AU  - Mirković, M.
AU  - Đoković, V.
AU  - Knežević, S.
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
AU  - Janićijević, Aleksandra
AU  - Kovačević, D.
AU  - Filipović, Suzana
AU  - Vujančević, Jelena
AU  - Vlahović, Branislav
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7363
AB  - The convergence of nano-, bio-, and information technologies is based on the understanding of complex hierarchical structures and systems, as well as on the material unity at the nanoscale and on technology integration from that scale. A growing interest in these technologies is a result of their potential to provide solutions to numerous societal challenges, such as advanced healthcare, environmental remediation, sustainable development, and adoption of cyber-physical systems based on the Internet of Things and the Internet of Systems. Taking into account that hybrid nanomaterials possess extraordinary physical and chemical properties derived from their size in the nanoscale, the aim of this work is to present the connection between processing parameters and multifunctional properties of nano scale hybrid materials, focusing on the study of ceramic-polymer structures before they can be nano-engineered into functional devices. The unique functionality of these nanostructures has enabled their applications in numerous devices such as: micro and nano-electro-mechanical systems (MEMS/NEMS), sensors, microactuators, surface acoustic wave devices, polymer electrolyte membrane fuel cells, switches, thermistors, resonators and filters, electrooptic devices, etc. In this study special attention has been paid to their applications in the fields of electronics, biotechnology, environmental protection and remediation.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
T1  - Hybrid Nanoscale Materials for Convergent Technologies
SP  - 45
EP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_cer_7363
ER  - 

@conference{
author = "Pavlović, Vladimir B. and Vuković, G. and Nikolić, M. and Pavlović, Vera P. and Perić, M. and Nenadović, S. and Ivanović, M. and Mirković, M. and Đoković, V. and Knežević, S. and Šuljagić, Marija and Anđelković, Ljubica and Janićijević, Aleksandra and Kovačević, D. and Filipović, Suzana and Vujančević, Jelena and Vlahović, Branislav",
year = "2023",
abstract = "The convergence of nano-, bio-, and information technologies is based on the understanding of complex hierarchical structures and systems, as well as on the material unity at the nanoscale and on technology integration from that scale. A growing interest in these technologies is a result of their potential to provide solutions to numerous societal challenges, such as advanced healthcare, environmental remediation, sustainable development, and adoption of cyber-physical systems based on the Internet of Things and the Internet of Systems. Taking into account that hybrid nanomaterials possess extraordinary physical and chemical properties derived from their size in the nanoscale, the aim of this work is to present the connection between processing parameters and multifunctional properties of nano scale hybrid materials, focusing on the study of ceramic-polymer structures before they can be nano-engineered into functional devices. The unique functionality of these nanostructures has enabled their applications in numerous devices such as: micro and nano-electro-mechanical systems (MEMS/NEMS), sensors, microactuators, surface acoustic wave devices, polymer electrolyte membrane fuel cells, switches, thermistors, resonators and filters, electrooptic devices, etc. In this study special attention has been paid to their applications in the fields of electronics, biotechnology, environmental protection and remediation.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023",
title = "Hybrid Nanoscale Materials for Convergent Technologies",
pages = "45-45",
url = "https://hdl.handle.net/21.15107/rcub_cer_7363"
}

Pavlović, V. B., Vuković, G., Nikolić, M., Pavlović, V. P., Perić, M., Nenadović, S., Ivanović, M., Mirković, M., Đoković, V., Knežević, S., Šuljagić, M., Anđelković, L., Janićijević, A., Kovačević, D., Filipović, S., Vujančević, J.,& Vlahović, B.. (2023). Hybrid Nanoscale Materials for Convergent Technologies. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
Belgrade : Serbian Ceramic Society., 45-45.
https://hdl.handle.net/21.15107/rcub_cer_7363

Pavlović VB, Vuković G, Nikolić M, Pavlović VP, Perić M, Nenadović S, Ivanović M, Mirković M, Đoković V, Knežević S, Šuljagić M, Anđelković L, Janićijević A, Kovačević D, Filipović S, Vujančević J, Vlahović B. Hybrid Nanoscale Materials for Convergent Technologies. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023. 2023;:45-45.
https://hdl.handle.net/21.15107/rcub_cer_7363 .

Pavlović, Vladimir B., Vuković, G., Nikolić, M., Pavlović, Vera P., Perić, M., Nenadović, S., Ivanović, M., Mirković, M., Đoković, V., Knežević, S., Šuljagić, Marija, Anđelković, Ljubica, Janićijević, Aleksandra, Kovačević, D., Filipović, Suzana, Vujančević, Jelena, Vlahović, Branislav, "Hybrid Nanoscale Materials for Convergent Technologies" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023 (2023):45-45,
https://hdl.handle.net/21.15107/rcub_cer_7363 .

TY  - JOUR
AU  - Lazarević, Zorica
AU  - Anđelković, Ljubica
AU  - Šuljagić, Marija
AU  - Milutinović, Aleksandra
AU  - Ćurčić, Milica
AU  - Trajić, Jelena
AU  - Paunović, Novica
AU  - Romčević, Maja
AU  - Hadžić, Branka
AU  - Romčević, Nebojša
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6231
AB  - Nanocrystalline CoFe2O4 has been synthesized by various synthesis methods. The obtained monodomain nanoparticles are similar in sizes (15.8-19 nm), but with different internal stresses, size distributions and cation inversion coefficients (0.51 - 0.90) due to different synthesis routes. The structure and cation distribution are investigated by XRD diffraction analysis, Raman and FIR spectroscopy. Measurement of magnetization, i.e. coercivity, enable the calculation of the anisotropy coefficient K1 = (3.6-5.12)·105 J cm-3, which is very high in cobalt ferrite. The anisotropy coefficient directly depends on the nanoparticle size. It has been shown that magnetization linearly depends on the cation inversion, except in the sample with the largest nanoparticles (19 nm), where the more regular crystal structure prevails and higher values of magnetization were obtained. The average magnetic moments at 300 K are: μFe = 3.6μB and μCo = 2.5μB. It is obvious that with small adjustments in the synthesis, desirable nanoparticle properties can be obtained.
PB  - INOE, Romania
T2  - Optoelectronics and Advanced Materials – Rapid Communications
T1  - Vibrational and magnetic properties of nano-sized CoFe2O4 obtained by various synthesis techniques: a comparative study
VL  - 17
IS  - 5-6
SP  - 247
EP  - 254
UR  - https://hdl.handle.net/21.15107/rcub_cer_6231
ER  - 

@article{
author = "Lazarević, Zorica and Anđelković, Ljubica and Šuljagić, Marija and Milutinović, Aleksandra and Ćurčić, Milica and Trajić, Jelena and Paunović, Novica and Romčević, Maja and Hadžić, Branka and Romčević, Nebojša",
year = "2023",
abstract = "Nanocrystalline CoFe2O4 has been synthesized by various synthesis methods. The obtained monodomain nanoparticles are similar in sizes (15.8-19 nm), but with different internal stresses, size distributions and cation inversion coefficients (0.51 - 0.90) due to different synthesis routes. The structure and cation distribution are investigated by XRD diffraction analysis, Raman and FIR spectroscopy. Measurement of magnetization, i.e. coercivity, enable the calculation of the anisotropy coefficient K1 = (3.6-5.12)·105 J cm-3, which is very high in cobalt ferrite. The anisotropy coefficient directly depends on the nanoparticle size. It has been shown that magnetization linearly depends on the cation inversion, except in the sample with the largest nanoparticles (19 nm), where the more regular crystal structure prevails and higher values of magnetization were obtained. The average magnetic moments at 300 K are: μFe = 3.6μB and μCo = 2.5μB. It is obvious that with small adjustments in the synthesis, desirable nanoparticle properties can be obtained.",
publisher = "INOE, Romania",
journal = "Optoelectronics and Advanced Materials – Rapid Communications",
title = "Vibrational and magnetic properties of nano-sized CoFe2O4 obtained by various synthesis techniques: a comparative study",
volume = "17",
number = "5-6",
pages = "247-254",
url = "https://hdl.handle.net/21.15107/rcub_cer_6231"
}

Lazarević, Z., Anđelković, L., Šuljagić, M., Milutinović, A., Ćurčić, M., Trajić, J., Paunović, N., Romčević, M., Hadžić, B.,& Romčević, N.. (2023). Vibrational and magnetic properties of nano-sized CoFe2O4 obtained by various synthesis techniques: a comparative study. in Optoelectronics and Advanced Materials – Rapid Communications
INOE, Romania., 17(5-6), 247-254.
https://hdl.handle.net/21.15107/rcub_cer_6231

Lazarević Z, Anđelković L, Šuljagić M, Milutinović A, Ćurčić M, Trajić J, Paunović N, Romčević M, Hadžić B, Romčević N. Vibrational and magnetic properties of nano-sized CoFe2O4 obtained by various synthesis techniques: a comparative study. in Optoelectronics and Advanced Materials – Rapid Communications. 2023;17(5-6):247-254.
https://hdl.handle.net/21.15107/rcub_cer_6231 .

Lazarević, Zorica, Anđelković, Ljubica, Šuljagić, Marija, Milutinović, Aleksandra, Ćurčić, Milica, Trajić, Jelena, Paunović, Novica, Romčević, Maja, Hadžić, Branka, Romčević, Nebojša, "Vibrational and magnetic properties of nano-sized CoFe2O4 obtained by various synthesis techniques: a comparative study" in Optoelectronics and Advanced Materials – Rapid Communications, 17, no. 5-6 (2023):247-254,
https://hdl.handle.net/21.15107/rcub_cer_6231 .

TY  - JOUR
AU  - Lazarević, Zorica
AU  - Milutinović, Aleksandra
AU  - Anđelković, Ljubica
AU  - Petrović, Milica
AU  - Hadžić, Branka
AU  - Romčević, Maja
AU  - Trajić, Jelena
AU  - Romčević, Nebojša
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7212
AB  - ingle phase cobalt ferrite (CoFe2O4) with nanoparticles of similar sizes (15.7-19 nm) was obtained by different synthesis methods: coprecipitation, ultrasonically assisted coprecipitation, coprecipitation followed by mechanochemical treatment, microemulsion and microwave assisted hydrothermal synthesis. The obtained CoFe2O4 samples have been studied using a variety of characterization techniques: X-ray diffraction (XRD), Raman spectroscopy, far infrared (FIR) reflectivity and attenuated total reflectance (ATR) in combination with Fourier-transform infrared (FTIR) spectroscopy in mid IR spectra. Different methods of synthesis produced nanoparticles with different lattice constants, internal stresses and different cation inversion values. This is confirmed in the subtle changes in the Raman and IR spectra of different CoFe2O4 nano-powders. The Raman spectra of CoFe2O4 were compared with the spectra of other ferrites and some cubic oxide spinels in an attempt to evaluate the contribution of tetrahedral and octahedral oscillations in certain Raman modes.
AB  - Монофазни кобалт ферит са наночестицама сличних величина (15,7-19  нанометара) добијен је различитим методама синтезе: копреципитацијом,  ултразвучно потпомогнутом копреципитацијом, копреципитацијом праћеном  механохемијском синтезом, микроемулзијом и микроталасном хидротермалном  синтезом. Добијени узорци кобалт ферита су проучавани коришћењем различитих  техника карактеризације: дифракцијом рендгенских зрака на праху, Раман спектроскопијом, рефлексијом у далекој инфра-црвеној области (ИЦ) и методом  апсорпције при вишеструкој тоталној рефлексији у комбинацији са инфра-црвеном  спектроскопијом (АТР-ИЦ) у средњој инфра црвеној области. Различитим методама  синтезе добијене су наночестице са различитим константама решетке, унутрашњим  напрезањима и различитим вредностима инверзије катјона. Ово је потврђено у  суптилним променама у Раман и ИЦ спектрима различитих нано-прахова кобалт  ферита. Раман спектри кобалт ферита упоређени су са спектрима других ферита и  неких кубних оксидних спинела у покушају да се процени утицај удела  тетраедарских и октаедарских осцилација у одређеним Раман модовима.
PB  - Association for ETRAN Society
T2  - Science of Sintering
T1  - Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels
T1  - Kарактеризација наночестица кобалт ферита добијених  различитим методама синтезе и поређење са Рамановим спектрима  других ферита и неких кубичних оксидних спинела
DO  - 10.2298/SOS230322035L
ER  - 

@article{
author = "Lazarević, Zorica and Milutinović, Aleksandra and Anđelković, Ljubica and Petrović, Milica and Hadžić, Branka and Romčević, Maja and Trajić, Jelena and Romčević, Nebojša",
year = "2023",
abstract = "ingle phase cobalt ferrite (CoFe2O4) with nanoparticles of similar sizes (15.7-19 nm) was obtained by different synthesis methods: coprecipitation, ultrasonically assisted coprecipitation, coprecipitation followed by mechanochemical treatment, microemulsion and microwave assisted hydrothermal synthesis. The obtained CoFe2O4 samples have been studied using a variety of characterization techniques: X-ray diffraction (XRD), Raman spectroscopy, far infrared (FIR) reflectivity and attenuated total reflectance (ATR) in combination with Fourier-transform infrared (FTIR) spectroscopy in mid IR spectra. Different methods of synthesis produced nanoparticles with different lattice constants, internal stresses and different cation inversion values. This is confirmed in the subtle changes in the Raman and IR spectra of different CoFe2O4 nano-powders. The Raman spectra of CoFe2O4 were compared with the spectra of other ferrites and some cubic oxide spinels in an attempt to evaluate the contribution of tetrahedral and octahedral oscillations in certain Raman modes., Монофазни кобалт ферит са наночестицама сличних величина (15,7-19  нанометара) добијен је различитим методама синтезе: копреципитацијом,  ултразвучно потпомогнутом копреципитацијом, копреципитацијом праћеном  механохемијском синтезом, микроемулзијом и микроталасном хидротермалном  синтезом. Добијени узорци кобалт ферита су проучавани коришћењем различитих  техника карактеризације: дифракцијом рендгенских зрака на праху, Раман спектроскопијом, рефлексијом у далекој инфра-црвеној области (ИЦ) и методом  апсорпције при вишеструкој тоталној рефлексији у комбинацији са инфра-црвеном  спектроскопијом (АТР-ИЦ) у средњој инфра црвеној области. Различитим методама  синтезе добијене су наночестице са различитим константама решетке, унутрашњим  напрезањима и различитим вредностима инверзије катјона. Ово је потврђено у  суптилним променама у Раман и ИЦ спектрима различитих нано-прахова кобалт  ферита. Раман спектри кобалт ферита упоређени су са спектрима других ферита и  неких кубних оксидних спинела у покушају да се процени утицај удела  тетраедарских и октаедарских осцилација у одређеним Раман модовима.",
publisher = "Association for ETRAN Society",
journal = "Science of Sintering",
title = "Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels, Kарактеризација наночестица кобалт ферита добијених  различитим методама синтезе и поређење са Рамановим спектрима  других ферита и неких кубичних оксидних спинела",
doi = "10.2298/SOS230322035L"
}

Lazarević, Z., Milutinović, A., Anđelković, L., Petrović, M., Hadžić, B., Romčević, M., Trajić, J.,& Romčević, N.. (2023). Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels. in Science of Sintering
Association for ETRAN Society..
https://doi.org/10.2298/SOS230322035L

Lazarević Z, Milutinović A, Anđelković L, Petrović M, Hadžić B, Romčević M, Trajić J, Romčević N. Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels. in Science of Sintering. 2023;.
doi:10.2298/SOS230322035L .

Lazarević, Zorica, Milutinović, Aleksandra, Anđelković, Ljubica, Petrović, Milica, Hadžić, Branka, Romčević, Maja, Trajić, Jelena, Romčević, Nebojša, "Characterization of cobalt ferrite nanoparticles obtained by various synthesis methods and comparison with the Raman spectra of other ferrites and some cubic oxide spinels" in Science of Sintering (2023),
https://doi.org/10.2298/SOS230322035L . .

TY  - JOUR
AU  - Anđelković, Ljubica
AU  - Šuljagić, Marija
AU  - Mirković, Miljana
AU  - Pavlović, Vera
AU  - Petronijević, Ivan
AU  - Stanković, Dalibor
AU  - Jeremić, Dejan
AU  - Uskoković, Vuk
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6199
AB  - The combination of an intense absorption of visible light and p-type semiconducting nature makes spinel cobalt oxide (Co3O4) a very attractive material for various optoelectronic applications. However, the traditional methods for its synthesis have been either time- and energy-consuming or relying on toxic chemicals. To solve this issue, a simple, facile, and eco-friendly method of synthesis was successfully developed to obtain spinel Co3O4 nanoparticles. The novel method for obtaining pure and monophasic Co3O4 reported here is based on the thermal decomposition of hexaaquacobalt(II) D-camphor10-sulfonate at 900 °C. This fast solid-state synthesis route overcomes the disadvantages of many combustion methods, most critically by avoiding the use of toxic organic solvents. The synthesized material was subjected to a detailed characterization to assess its potential for use as a nanocatalyst. The band gap measurements indicated the presence of two band gaps, one at 2.10 eV and another at 1.22 eV, confirming the purity and semiconducting properties of the sample. The electrochemical studies demonstrated a significant enhancement in the electron transfer kinetics with the addition of the synthesized Co3O4 to the carbon-paste electrode, leading to an enhanced electrocatalytic performance. These prominent functional properties, suitable for a wide range of technological applications, pave way for the implementation of the reported method for the synthesis of Co3O4 on a larger industrial scale.
PB  - Elsevier
T2  - Ceramics International
T1  - Semiconducting cobalt oxide nanocatalyst obtained through an eco-friendly thermal decomposition
DO  - 10.1016/j.ceramint.2023.04.182
ER  - 

@article{
author = "Anđelković, Ljubica and Šuljagić, Marija and Mirković, Miljana and Pavlović, Vera and Petronijević, Ivan and Stanković, Dalibor and Jeremić, Dejan and Uskoković, Vuk",
year = "2023",
abstract = "The combination of an intense absorption of visible light and p-type semiconducting nature makes spinel cobalt oxide (Co3O4) a very attractive material for various optoelectronic applications. However, the traditional methods for its synthesis have been either time- and energy-consuming or relying on toxic chemicals. To solve this issue, a simple, facile, and eco-friendly method of synthesis was successfully developed to obtain spinel Co3O4 nanoparticles. The novel method for obtaining pure and monophasic Co3O4 reported here is based on the thermal decomposition of hexaaquacobalt(II) D-camphor10-sulfonate at 900 °C. This fast solid-state synthesis route overcomes the disadvantages of many combustion methods, most critically by avoiding the use of toxic organic solvents. The synthesized material was subjected to a detailed characterization to assess its potential for use as a nanocatalyst. The band gap measurements indicated the presence of two band gaps, one at 2.10 eV and another at 1.22 eV, confirming the purity and semiconducting properties of the sample. The electrochemical studies demonstrated a significant enhancement in the electron transfer kinetics with the addition of the synthesized Co3O4 to the carbon-paste electrode, leading to an enhanced electrocatalytic performance. These prominent functional properties, suitable for a wide range of technological applications, pave way for the implementation of the reported method for the synthesis of Co3O4 on a larger industrial scale.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "Semiconducting cobalt oxide nanocatalyst obtained through an eco-friendly thermal decomposition",
doi = "10.1016/j.ceramint.2023.04.182"
}

Anđelković, L., Šuljagić, M., Mirković, M., Pavlović, V., Petronijević, I., Stanković, D., Jeremić, D.,& Uskoković, V.. (2023). Semiconducting cobalt oxide nanocatalyst obtained through an eco-friendly thermal decomposition. in Ceramics International
Elsevier..
https://doi.org/10.1016/j.ceramint.2023.04.182

Anđelković L, Šuljagić M, Mirković M, Pavlović V, Petronijević I, Stanković D, Jeremić D, Uskoković V. Semiconducting cobalt oxide nanocatalyst obtained through an eco-friendly thermal decomposition. in Ceramics International. 2023;.
doi:10.1016/j.ceramint.2023.04.182 .

Anđelković, Ljubica, Šuljagić, Marija, Mirković, Miljana, Pavlović, Vera, Petronijević, Ivan, Stanković, Dalibor, Jeremić, Dejan, Uskoković, Vuk, "Semiconducting cobalt oxide nanocatalyst obtained through an eco-friendly thermal decomposition" in Ceramics International (2023),
https://doi.org/10.1016/j.ceramint.2023.04.182 . .

TY  - CONF
AU  - Perić, Marko
AU  - Vuković, George
AU  - Knežević, Sanja
AU  - Nikolić, Milan
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
AU  - Nenadović, Snežana
AU  - Ivanović, Marija
AU  - Mirković, Miljana
AU  - Pavlović, Vladmir B.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6022
AB  - Radiation shielding is a crucial precautionary measure in decreasing the dose of exposure medical personnel experience. The physical dimensions of these shields, specifically thickness and shape, are dependent on the type of radiation, energy and specific radioactivity. Currently, the most common radiation shielding equipment is made of lead, tungsten or uranium. Although these heavy metals have favorable shielding properties against ionizing radiation, protective garments such as lead aprons are heavy to wear and can pose significant health risks. Taking this into account, the primary goal of this study is to understand the radiation shielding properties of lead-free polymer geopolymer-polyurethane based composites. The geopolymer was synthesized using an 80%-20% mixture of fly ash and a bio-polyol substrate which was subsequently homogenized using MDI44. As a result, 6 samples of the geopolymer-polyurethane based composites were fabricated of which 5 were 90%-10% compositions between the mixture and varying concentrations of BaSO4 and Bi2O3 respectively. The last sample consisted of the pure fly ash/bio-polyol mixture. XRF and ICP analysis was used to chemically characterize the fly ash. The composite structures were analyzed using XRD, while the microstructural morphology was investigated using SEM techniques. Utilizing an energy-dispersive x-ray spectrometer (EDS), elemental abundance and agglomerating behavior was analyzed for each composite variant. The X-ray attenuation measurements pointed out that the obtained composites have the potential for a design of lead-free protective clothing against X-ray shielding in medical applications.
PB  - Bucharest: SRMNIM
C3  - Abstracts E-Book, 10th Balkan Congress of Nuclear Medicine & 5th Romanian Congress of Nuclear Medicine, 15-18 March, 2023, Bucharest, Romania
T1  - Lead Free Polymer Composites for Radiation Shielding
SP  - 17
SP  - 17
UR  - https://hdl.handle.net/21.15107/rcub_cer_6022
ER  - 

@conference{
author = "Perić, Marko and Vuković, George and Knežević, Sanja and Nikolić, Milan and Šuljagić, Marija and Anđelković, Ljubica and Nenadović, Snežana and Ivanović, Marija and Mirković, Miljana and Pavlović, Vladmir B.",
year = "2023",
abstract = "Radiation shielding is a crucial precautionary measure in decreasing the dose of exposure medical personnel experience. The physical dimensions of these shields, specifically thickness and shape, are dependent on the type of radiation, energy and specific radioactivity. Currently, the most common radiation shielding equipment is made of lead, tungsten or uranium. Although these heavy metals have favorable shielding properties against ionizing radiation, protective garments such as lead aprons are heavy to wear and can pose significant health risks. Taking this into account, the primary goal of this study is to understand the radiation shielding properties of lead-free polymer geopolymer-polyurethane based composites. The geopolymer was synthesized using an 80%-20% mixture of fly ash and a bio-polyol substrate which was subsequently homogenized using MDI44. As a result, 6 samples of the geopolymer-polyurethane based composites were fabricated of which 5 were 90%-10% compositions between the mixture and varying concentrations of BaSO4 and Bi2O3 respectively. The last sample consisted of the pure fly ash/bio-polyol mixture. XRF and ICP analysis was used to chemically characterize the fly ash. The composite structures were analyzed using XRD, while the microstructural morphology was investigated using SEM techniques. Utilizing an energy-dispersive x-ray spectrometer (EDS), elemental abundance and agglomerating behavior was analyzed for each composite variant. The X-ray attenuation measurements pointed out that the obtained composites have the potential for a design of lead-free protective clothing against X-ray shielding in medical applications.",
publisher = "Bucharest: SRMNIM",
journal = "Abstracts E-Book, 10th Balkan Congress of Nuclear Medicine & 5th Romanian Congress of Nuclear Medicine, 15-18 March, 2023, Bucharest, Romania",
title = "Lead Free Polymer Composites for Radiation Shielding",
pages = "17-17",
url = "https://hdl.handle.net/21.15107/rcub_cer_6022"
}

Perić, M., Vuković, G., Knežević, S., Nikolić, M., Šuljagić, M., Anđelković, L., Nenadović, S., Ivanović, M., Mirković, M.,& Pavlović, V. B.. (2023). Lead Free Polymer Composites for Radiation Shielding. in Abstracts E-Book, 10th Balkan Congress of Nuclear Medicine & 5th Romanian Congress of Nuclear Medicine, 15-18 March, 2023, Bucharest, Romania
Bucharest: SRMNIM., 17.
https://hdl.handle.net/21.15107/rcub_cer_6022

Perić M, Vuković G, Knežević S, Nikolić M, Šuljagić M, Anđelković L, Nenadović S, Ivanović M, Mirković M, Pavlović VB. Lead Free Polymer Composites for Radiation Shielding. in Abstracts E-Book, 10th Balkan Congress of Nuclear Medicine & 5th Romanian Congress of Nuclear Medicine, 15-18 March, 2023, Bucharest, Romania. 2023;:17.
https://hdl.handle.net/21.15107/rcub_cer_6022 .

Perić, Marko, Vuković, George, Knežević, Sanja, Nikolić, Milan, Šuljagić, Marija, Anđelković, Ljubica, Nenadović, Snežana, Ivanović, Marija, Mirković, Miljana, Pavlović, Vladmir B., "Lead Free Polymer Composites for Radiation Shielding" in Abstracts E-Book, 10th Balkan Congress of Nuclear Medicine & 5th Romanian Congress of Nuclear Medicine, 15-18 March, 2023, Bucharest, Romania (2023):17,
https://hdl.handle.net/21.15107/rcub_cer_6022 .

TY  - CONF
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6642
AB  - To examine the influence of phase composition on the magnetic, dielectric, and ferroelectric
properties of perovskite/spinel composites, NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in
situ prepared by thermal decomposition onto BaTiO3 surface. Acetylacetonate complexes were used as the precursors. The synthesized powders were compressed to pellets and additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the comprehensive study of phase composition and morphology. The magnetic and electrical properties were performed in detail. The optimal phase composition was found in the BaTiO3/NiFe2O4 composite sintered at 1150 °C. This resulted in wide frequency range stability of relative dielectric constant. Furthermore, optimal phase composition in BaTiO3/NiFe2O4 led to suitable properties such as low conductivity and ideal-like hysteresis loop behavior. These functional properties of BaTiO3/NiFe2O4 make this composite a promising candidate for further studies on multiferroic properties.
PB  - Belgrade: Serbian Ceramic Society
C3  - Program and the Book of Abstracts, The Eleventh Serbian Ceramic Society Conference Advanced Ceramics and Application, September 18-20, 2023
T1  - BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) composites synthesized by thermal decomposition: The influence of phase composition on their magnetic and electrical properties
SP  - 33
EP  - 33
UR  - https://hdl.handle.net/21.15107/rcub_cer_6642
ER  - 

@conference{
author = "Šuljagić, Marija and Anđelković, Ljubica",
year = "2023",
abstract = "To examine the influence of phase composition on the magnetic, dielectric, and ferroelectric
properties of perovskite/spinel composites, NiFe2O4, ZnFe2O4, and Ni0.5Zn0.5Fe2O4 were in
situ prepared by thermal decomposition onto BaTiO3 surface. Acetylacetonate complexes were used as the precursors. The synthesized powders were compressed to pellets and additionally sintered at 1150 °C and 1300 °C. X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM) coupled with electron dispersive spectroscopy (EDS) were used for the comprehensive study of phase composition and morphology. The magnetic and electrical properties were performed in detail. The optimal phase composition was found in the BaTiO3/NiFe2O4 composite sintered at 1150 °C. This resulted in wide frequency range stability of relative dielectric constant. Furthermore, optimal phase composition in BaTiO3/NiFe2O4 led to suitable properties such as low conductivity and ideal-like hysteresis loop behavior. These functional properties of BaTiO3/NiFe2O4 make this composite a promising candidate for further studies on multiferroic properties.",
publisher = "Belgrade: Serbian Ceramic Society",
journal = "Program and the Book of Abstracts, The Eleventh Serbian Ceramic Society Conference Advanced Ceramics and Application, September 18-20, 2023",
title = "BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) composites synthesized by thermal decomposition: The influence of phase composition on their magnetic and electrical properties",
pages = "33-33",
url = "https://hdl.handle.net/21.15107/rcub_cer_6642"
}

Šuljagić, M.,& Anđelković, L.. (2023). BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) composites synthesized by thermal decomposition: The influence of phase composition on their magnetic and electrical properties. in Program and the Book of Abstracts, The Eleventh Serbian Ceramic Society Conference Advanced Ceramics and Application, September 18-20, 2023
Belgrade: Serbian Ceramic Society., 33-33.
https://hdl.handle.net/21.15107/rcub_cer_6642

Šuljagić M, Anđelković L. BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) composites synthesized by thermal decomposition: The influence of phase composition on their magnetic and electrical properties. in Program and the Book of Abstracts, The Eleventh Serbian Ceramic Society Conference Advanced Ceramics and Application, September 18-20, 2023. 2023;:33-33.
https://hdl.handle.net/21.15107/rcub_cer_6642 .

Šuljagić, Marija, Anđelković, Ljubica, "BaTiO3/NixZn1-xFe2O4 (x =0, 0.5, 1) composites synthesized by thermal decomposition: The influence of phase composition on their magnetic and electrical properties" in Program and the Book of Abstracts, The Eleventh Serbian Ceramic Society Conference Advanced Ceramics and Application, September 18-20, 2023 (2023):33-33,
https://hdl.handle.net/21.15107/rcub_cer_6642 .