TY  - JOUR
AU  - Labus, Nebojsa
AU  - Krstić, Jugoslav
AU  - Matijašević, Srđan
AU  - Pavlović, Vladimir
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7187
AB  - Powder mixture consisted of ZnO, Mn2O3 (MnCO3) and Fe2O3 blended powders, was found laminating during compaction. Polyvinyl alcohol (PVA) and a combination of PVA with polyethylene glycol (PEG) added as a plasticizer, were introduced as polymer binders to improve the compaction of oxide mixtures. It has been done by forming a suspension of oxide mixture and varying the polymer solution concentration and composition. By evaporating the solvent, new materials were obtained, which consist of oxide particles bound via polymer. In such a manner obtained hybrid materials were characterized with attenuated total reflection Fourier transformed infrared (ATR-FTIR) spectroscopy, differential thermal analysis (DTA) and transmission electron microscopy (TEM). The oxide polymer material was compacted at 200 MPa and the expansion of this compact during heating was monitored in temperature range up to 550ºC with dilatometer. It was found that PVA forms graft polymer with PEG and specific interaction with oxide particles surface was revealed.
AB  - Смеша прахова састављена од ZnO, Mn2O3 (MnCO3) и Fe2O3 комбинацијепрахова је показивала ламинацију током пресовања. Поливинил алкохол (PVA) икомбинација PVA са полиетилен гликолом (PEG) који је додат као пластификатор, сууведени као полимерно везиво за пресовање оксидних прахова. Везиво је уведено такошто је формирана суспензија смеше различитих оксида прахова у полимерномраствору. Концентрације полимера и састави су варирани. Уклањањем растварачадобијени су нови материјали који се састоје од честица оксида повезаних полимерима.Ови хибридни материјали окарактерисани су методама ометене тоталне рефлексијефурије трансформисане инфрацрвене спектроскопије (ATR-FTIR) као идиференцијалне термичке анализе (DTA). Микроструктура је посматранатрансмисоном електронском микроскопијом (TEM). Оксид-полимер материјали супресовани на притиску од 200 MPa и ширење испреска током грејања је праћено у температурском опсегу од собне до 550ºC употребом дилатометра. Нађено је да PVAформира графт полимер са PEG и да постоји специфична интеракција полимера саповршином честица оксида.
PB  - Belgrade : Association for ETRAN Society
T2  - Science of Sintering
T1  - Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer
VL  - 55
SP  - 189
EP  - 2023
DO  - 10.2298/SOS220828005L
ER  - 

@article{
author = "Labus, Nebojsa and Krstić, Jugoslav and Matijašević, Srđan and Pavlović, Vladimir",
year = "2023",
abstract = "Powder mixture consisted of ZnO, Mn2O3 (MnCO3) and Fe2O3 blended powders, was found laminating during compaction. Polyvinyl alcohol (PVA) and a combination of PVA with polyethylene glycol (PEG) added as a plasticizer, were introduced as polymer binders to improve the compaction of oxide mixtures. It has been done by forming a suspension of oxide mixture and varying the polymer solution concentration and composition. By evaporating the solvent, new materials were obtained, which consist of oxide particles bound via polymer. In such a manner obtained hybrid materials were characterized with attenuated total reflection Fourier transformed infrared (ATR-FTIR) spectroscopy, differential thermal analysis (DTA) and transmission electron microscopy (TEM). The oxide polymer material was compacted at 200 MPa and the expansion of this compact during heating was monitored in temperature range up to 550ºC with dilatometer. It was found that PVA forms graft polymer with PEG and specific interaction with oxide particles surface was revealed., Смеша прахова састављена од ZnO, Mn2O3 (MnCO3) и Fe2O3 комбинацијепрахова је показивала ламинацију током пресовања. Поливинил алкохол (PVA) икомбинација PVA са полиетилен гликолом (PEG) који је додат као пластификатор, сууведени као полимерно везиво за пресовање оксидних прахова. Везиво је уведено такошто је формирана суспензија смеше различитих оксида прахова у полимерномраствору. Концентрације полимера и састави су варирани. Уклањањем растварачадобијени су нови материјали који се састоје од честица оксида повезаних полимерима.Ови хибридни материјали окарактерисани су методама ометене тоталне рефлексијефурије трансформисане инфрацрвене спектроскопије (ATR-FTIR) као идиференцијалне термичке анализе (DTA). Микроструктура је посматранатрансмисоном електронском микроскопијом (TEM). Оксид-полимер материјали супресовани на притиску од 200 MPa и ширење испреска током грејања је праћено у температурском опсегу од собне до 550ºC употребом дилатометра. Нађено је да PVAформира графт полимер са PEG и да постоји специфична интеракција полимера саповршином честица оксида.",
publisher = "Belgrade : Association for ETRAN Society",
journal = "Science of Sintering",
title = "Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer",
volume = "55",
pages = "189-2023",
doi = "10.2298/SOS220828005L"
}

Labus, N., Krstić, J., Matijašević, S.,& Pavlović, V.. (2023). Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer. in Science of Sintering
Belgrade : Association for ETRAN Society., 55, 189-2023.
https://doi.org/10.2298/SOS220828005L

Labus N, Krstić J, Matijašević S, Pavlović V. Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer. in Science of Sintering. 2023;55:189-2023.
doi:10.2298/SOS220828005L .

Labus, Nebojsa, Krstić, Jugoslav, Matijašević, Srđan, Pavlović, Vladimir, "Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer" in Science of Sintering, 55 (2023):189-2023,
https://doi.org/10.2298/SOS220828005L . .

TY  - JOUR
AU  - Kolar-Anić, Ljiljana
AU  - Čupić, Željko
AU  - Maćešić, Stevan
AU  - Ivanović-Šašić, Ana
AU  - Dietrich, Johannes
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6416
AB  - The synthesis of thyroid hormones in the hypothalamic-pituitary-thyroid (HPT) axis was studied. For this purpose,
a reaction model for HPT axis with stoichiometric relations between the main reaction species was
postulated. Using the law of mass action, this model has been transformed into a set of nonlinear ordinary
differential equations. This new model has been examined by stoichiometric network analysis (SNA) with the aim
to see if it possesses the ability to reproduce oscillatory ultradian dynamics founded on the internal feedback
mechanism. In particular, a feedback regulation of TSH production based on the interplay between TRH, TSH,
somatostatin and thyroid hormones was proposed. Besides, the ten times larger amount of produced T4 with
respect to T3 in the thyroid gland was successfully simulated. The properties of SNA in combination with
experimental results, were used to determine the unknown parameters (19 rate constants of particular reaction
steps) necessary for numerical investigations. The steady-state concentrations of 15 reactive species were tuned
to be consistent with the experimental data. The predictive potential of the proposed model was illustrated on
numerical simulations of somatostatin influence on TSH dynamics investigated experimentally by Weeke et al. in
1975. In addition, all programs for SNA analysis were adapted for this kind of a large model. The procedure of
calculating rate constants from steady-state reaction rates and very limited available experimental data was
developed. For this purpose, a unique numerical method was developed to fine-tune model parameters while
preserving the fixed rate ratios and using the magnitude of the experimentally known oscillation period as the
only target value. The postulated model was numerically validated by perturbation simulations with somatostatin
infusion and the results were compared with experiments available in literature. Finally, as far as we know,
this reaction model with 15 variables is the most dimensional one that have been analysed mathematically to
obtain instability region and oscillatory dynamic states. Among the existing models of thyroid homeostasis this
theory represents a new class that may improve our understanding of basic physiological processes and helps to
develop new therapeutic approaches. Additionally, it may pave the way to improved diagnostic methods for
pituitary and thyroid disorders.
PB  - Elsevier
T2  - Computers in Biology and Medicine
T1  - Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback
VL  - 160
SP  - 106980
DO  - 10.1016/j.compbiomed.2023.106980
ER  - 

@article{
author = "Kolar-Anić, Ljiljana and Čupić, Željko and Maćešić, Stevan and Ivanović-Šašić, Ana and Dietrich, Johannes",
year = "2023",
abstract = "The synthesis of thyroid hormones in the hypothalamic-pituitary-thyroid (HPT) axis was studied. For this purpose,
a reaction model for HPT axis with stoichiometric relations between the main reaction species was
postulated. Using the law of mass action, this model has been transformed into a set of nonlinear ordinary
differential equations. This new model has been examined by stoichiometric network analysis (SNA) with the aim
to see if it possesses the ability to reproduce oscillatory ultradian dynamics founded on the internal feedback
mechanism. In particular, a feedback regulation of TSH production based on the interplay between TRH, TSH,
somatostatin and thyroid hormones was proposed. Besides, the ten times larger amount of produced T4 with
respect to T3 in the thyroid gland was successfully simulated. The properties of SNA in combination with
experimental results, were used to determine the unknown parameters (19 rate constants of particular reaction
steps) necessary for numerical investigations. The steady-state concentrations of 15 reactive species were tuned
to be consistent with the experimental data. The predictive potential of the proposed model was illustrated on
numerical simulations of somatostatin influence on TSH dynamics investigated experimentally by Weeke et al. in
1975. In addition, all programs for SNA analysis were adapted for this kind of a large model. The procedure of
calculating rate constants from steady-state reaction rates and very limited available experimental data was
developed. For this purpose, a unique numerical method was developed to fine-tune model parameters while
preserving the fixed rate ratios and using the magnitude of the experimentally known oscillation period as the
only target value. The postulated model was numerically validated by perturbation simulations with somatostatin
infusion and the results were compared with experiments available in literature. Finally, as far as we know,
this reaction model with 15 variables is the most dimensional one that have been analysed mathematically to
obtain instability region and oscillatory dynamic states. Among the existing models of thyroid homeostasis this
theory represents a new class that may improve our understanding of basic physiological processes and helps to
develop new therapeutic approaches. Additionally, it may pave the way to improved diagnostic methods for
pituitary and thyroid disorders.",
publisher = "Elsevier",
journal = "Computers in Biology and Medicine",
title = "Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback",
volume = "160",
pages = "106980",
doi = "10.1016/j.compbiomed.2023.106980"
}

Kolar-Anić, L., Čupić, Ž., Maćešić, S., Ivanović-Šašić, A.,& Dietrich, J.. (2023). Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback. in Computers in Biology and Medicine
Elsevier., 160, 106980.
https://doi.org/10.1016/j.compbiomed.2023.106980

Kolar-Anić L, Čupić Ž, Maćešić S, Ivanović-Šašić A, Dietrich J. Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback. in Computers in Biology and Medicine. 2023;160:106980.
doi:10.1016/j.compbiomed.2023.106980 .

Kolar-Anić, Ljiljana, Čupić, Željko, Maćešić, Stevan, Ivanović-Šašić, Ana, Dietrich, Johannes, "Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback" in Computers in Biology and Medicine, 160 (2023):106980,
https://doi.org/10.1016/j.compbiomed.2023.106980 . .

TY  - JOUR
AU  - Maćešić, Stevan
AU  - Čupić, Željko
AU  - Kolar-Anić, Ljiljana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7185
AB  - The effect of diffusion on the steady-state stability of an oscillatory chemical reaction model was investigated using stoichiometric network analysis and numerical simulations. Under both spatially uniform and nonuniform conditions, steady-state stability was investigated. Under spatially uniform conditions, the model can simulate oscillatory dynamics by passing through the Andronov-Hopf bifurcation. When diffusion is introduced into the system, the results have shown that two scenarios through which instabilities can occur are possible. Either, oscillations may be caused by the same instability as it was in homogeneous case, or, diffusion may cause new type of instability. Using the exponent polytope method, we derived a system of inequalities that describes the conditions for the emergence of both, oscillations, and diffusion-driven instabilities.
PB  - Elsevier
T2  - Chaos, Solitons & Fractals
T1  - Effect of diffusion on steady state stability of an oscillatory reaction model
VL  - 174
SP  - 113783
DO  - 10.1016/j.chaos.2023.113783
ER  - 

@article{
author = "Maćešić, Stevan and Čupić, Željko and Kolar-Anić, Ljiljana",
year = "2023",
abstract = "The effect of diffusion on the steady-state stability of an oscillatory chemical reaction model was investigated using stoichiometric network analysis and numerical simulations. Under both spatially uniform and nonuniform conditions, steady-state stability was investigated. Under spatially uniform conditions, the model can simulate oscillatory dynamics by passing through the Andronov-Hopf bifurcation. When diffusion is introduced into the system, the results have shown that two scenarios through which instabilities can occur are possible. Either, oscillations may be caused by the same instability as it was in homogeneous case, or, diffusion may cause new type of instability. Using the exponent polytope method, we derived a system of inequalities that describes the conditions for the emergence of both, oscillations, and diffusion-driven instabilities.",
publisher = "Elsevier",
journal = "Chaos, Solitons & Fractals",
title = "Effect of diffusion on steady state stability of an oscillatory reaction model",
volume = "174",
pages = "113783",
doi = "10.1016/j.chaos.2023.113783"
}

Maćešić, S., Čupić, Ž.,& Kolar-Anić, L.. (2023). Effect of diffusion on steady state stability of an oscillatory reaction model. in Chaos, Solitons & Fractals
Elsevier., 174, 113783.
https://doi.org/10.1016/j.chaos.2023.113783

Maćešić S, Čupić Ž, Kolar-Anić L. Effect of diffusion on steady state stability of an oscillatory reaction model. in Chaos, Solitons & Fractals. 2023;174:113783.
doi:10.1016/j.chaos.2023.113783 .

Maćešić, Stevan, Čupić, Željko, Kolar-Anić, Ljiljana, "Effect of diffusion on steady state stability of an oscillatory reaction model" in Chaos, Solitons & Fractals, 174 (2023):113783,
https://doi.org/10.1016/j.chaos.2023.113783 . .

TY  - JOUR
AU  - Čupić, Željko
AU  - Maćešić, Stevan
AU  - Anić, Slobodan
AU  - Kolar-Anić, Ljiljana
AU  - Ivanović-Šašić, Ana
AU  - Novaković, Katarina
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5293
AB  - The study presents a mathematical model of Bruk Temkin-Gorodsky Novakovic (BT-GN) reaction system employing palladium-catalyzed oscillatory carbonylation reaction of mono alkyne-terminated poly(ethylene glycol) methyl ether. The proposed model advances simulation capabilities of this particular chemical oscillator but also BT-GN reactions in general. The model was verified using experimental data where good agreement is achieved and existence of complex pH oscillations like burst oscillations was matched. Furthermore, the model was used to predict reaction conditions capable of producing further complexities and initial conditions that would lead to desired period of pH oscillations. Having such a powerful tool, enhances our capabilities to study and further develop BT-GN oscillators with a reduced experimental effort.
PB  - Springer
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Oscillatory carbonylation of poly(ethylene glycol)methyl ether acetylene. Improved model of reaction mechanism
VL  - 135
IS  - 1
SP  - 3
EP  - 14
DO  - 10.1007/s11144-021-02148-9
ER  - 

@article{
author = "Čupić, Željko and Maćešić, Stevan and Anić, Slobodan and Kolar-Anić, Ljiljana and Ivanović-Šašić, Ana and Novaković, Katarina",
year = "2022",
abstract = "The study presents a mathematical model of Bruk Temkin-Gorodsky Novakovic (BT-GN) reaction system employing palladium-catalyzed oscillatory carbonylation reaction of mono alkyne-terminated poly(ethylene glycol) methyl ether. The proposed model advances simulation capabilities of this particular chemical oscillator but also BT-GN reactions in general. The model was verified using experimental data where good agreement is achieved and existence of complex pH oscillations like burst oscillations was matched. Furthermore, the model was used to predict reaction conditions capable of producing further complexities and initial conditions that would lead to desired period of pH oscillations. Having such a powerful tool, enhances our capabilities to study and further develop BT-GN oscillators with a reduced experimental effort.",
publisher = "Springer",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Oscillatory carbonylation of poly(ethylene glycol)methyl ether acetylene. Improved model of reaction mechanism",
volume = "135",
number = "1",
pages = "3-14",
doi = "10.1007/s11144-021-02148-9"
}

Čupić, Ž., Maćešić, S., Anić, S., Kolar-Anić, L., Ivanović-Šašić, A.,& Novaković, K.. (2022). Oscillatory carbonylation of poly(ethylene glycol)methyl ether acetylene. Improved model of reaction mechanism. in Reaction Kinetics, Mechanisms and Catalysis
Springer., 135(1), 3-14.
https://doi.org/10.1007/s11144-021-02148-9

Čupić Ž, Maćešić S, Anić S, Kolar-Anić L, Ivanović-Šašić A, Novaković K. Oscillatory carbonylation of poly(ethylene glycol)methyl ether acetylene. Improved model of reaction mechanism. in Reaction Kinetics, Mechanisms and Catalysis. 2022;135(1):3-14.
doi:10.1007/s11144-021-02148-9 .

Čupić, Željko, Maćešić, Stevan, Anić, Slobodan, Kolar-Anić, Ljiljana, Ivanović-Šašić, Ana, Novaković, Katarina, "Oscillatory carbonylation of poly(ethylene glycol)methyl ether acetylene. Improved model of reaction mechanism" in Reaction Kinetics, Mechanisms and Catalysis, 135, no. 1 (2022):3-14,
https://doi.org/10.1007/s11144-021-02148-9 . .

TY  - JOUR
AU  - Negrojević, Luka
AU  - Lončar, Aleksandar
AU  - Maksimović, Jelena
AU  - Anić, Slobodan
AU  - Čupić, Željko
AU  - Kolar-Anić, Ljiljana
AU  - Pejić, Nataša
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5253
AB  - A kinetic method for the determination of l-tyrosine (Tyr) by analyte pulse perturbation, caused by different amounts of Tyr, in the Bray–Liebhafsky (BL) oscillatory reaction realized in a continuous-flow stirred tank reactor, is proposed. For such purposes, the BL oscillating reaction was kept in a stable non-equilibrium stationary state close to the bifurcation point and was used as the matrix reaction system. Under optimum reaction conditions, the linear relationship between the kinetic parameters, Δτ2 (the period between first two oscillations that appear after applied perturbation) as well as τend (the time elapsed between the perturbation of the BL reaction by Tyr and the termination of the oscillatory phase) and the Tyr concentrations is obtained over the ranges 1.1 × 10− 6 − 9.2 × 10− 6 mol L− 1 and 1.1 × 10− 6 − 1.4 × 10− 5 mol L− 1, with the limit of detections of 6.6 × 10− 7 mol L− 1 and 6.4 × 10− 7 mol L− 1. The described method that relies on a simple instrumental set-up, has been successfully applied to the determination of Tyr in a dietary supplement. Some aspects of the possible mechanism of Tyr action on the BL oscillator are discussed.
PB  - Springer
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Bray–Liebhafsky oscillatory reaction in a continuous-flow stirred tank reactor as the matrix system for determination of tyrosine
VL  - 135
SP  - 1147
EP  - 1162
DO  - 10.1007/s11144-021-02130-5
ER  - 

@article{
author = "Negrojević, Luka and Lončar, Aleksandar and Maksimović, Jelena and Anić, Slobodan and Čupić, Željko and Kolar-Anić, Ljiljana and Pejić, Nataša",
year = "2022",
abstract = "A kinetic method for the determination of l-tyrosine (Tyr) by analyte pulse perturbation, caused by different amounts of Tyr, in the Bray–Liebhafsky (BL) oscillatory reaction realized in a continuous-flow stirred tank reactor, is proposed. For such purposes, the BL oscillating reaction was kept in a stable non-equilibrium stationary state close to the bifurcation point and was used as the matrix reaction system. Under optimum reaction conditions, the linear relationship between the kinetic parameters, Δτ2 (the period between first two oscillations that appear after applied perturbation) as well as τend (the time elapsed between the perturbation of the BL reaction by Tyr and the termination of the oscillatory phase) and the Tyr concentrations is obtained over the ranges 1.1 × 10− 6 − 9.2 × 10− 6 mol L− 1 and 1.1 × 10− 6 − 1.4 × 10− 5 mol L− 1, with the limit of detections of 6.6 × 10− 7 mol L− 1 and 6.4 × 10− 7 mol L− 1. The described method that relies on a simple instrumental set-up, has been successfully applied to the determination of Tyr in a dietary supplement. Some aspects of the possible mechanism of Tyr action on the BL oscillator are discussed.",
publisher = "Springer",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Bray–Liebhafsky oscillatory reaction in a continuous-flow stirred tank reactor as the matrix system for determination of tyrosine",
volume = "135",
pages = "1147-1162",
doi = "10.1007/s11144-021-02130-5"
}

Negrojević, L., Lončar, A., Maksimović, J., Anić, S., Čupić, Ž., Kolar-Anić, L.,& Pejić, N.. (2022). Bray–Liebhafsky oscillatory reaction in a continuous-flow stirred tank reactor as the matrix system for determination of tyrosine. in Reaction Kinetics, Mechanisms and Catalysis
Springer., 135, 1147-1162.
https://doi.org/10.1007/s11144-021-02130-5

Negrojević L, Lončar A, Maksimović J, Anić S, Čupić Ž, Kolar-Anić L, Pejić N. Bray–Liebhafsky oscillatory reaction in a continuous-flow stirred tank reactor as the matrix system for determination of tyrosine. in Reaction Kinetics, Mechanisms and Catalysis. 2022;135:1147-1162.
doi:10.1007/s11144-021-02130-5 .

Negrojević, Luka, Lončar, Aleksandar, Maksimović, Jelena, Anić, Slobodan, Čupić, Željko, Kolar-Anić, Ljiljana, Pejić, Nataša, "Bray–Liebhafsky oscillatory reaction in a continuous-flow stirred tank reactor as the matrix system for determination of tyrosine" in Reaction Kinetics, Mechanisms and Catalysis, 135 (2022):1147-1162,
https://doi.org/10.1007/s11144-021-02130-5 . .

TY  - JOUR
AU  - Stojiljković, Aleksandra S.
AU  - Čupić, Željko
AU  - Maćešić, Stevan
AU  - Ivanović - Šašić, Ana
AU  - Kolar-Anić, Ljiljana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5390
AB  - Numerous studies on humans and animals have indicated that the corticotrophin-releasing hormone (CRH) and arginine vasopressin (AVP) stimulate both individually and synergistically secretion of adrenocorticotropic hormone (ACTH) by corticotropic cells in anterior pituitary. With aim to characterize and better comprehend the mechanisms underlying the effects of AVP on Hypothalamic-Pituitary-Adrenal (HPA) axis ultradian dynamics, AVP is here incorporated into our previously proposed stoichiometric model of HPA axis in humans. This extended nonlinear network reaction model took into account AVP by: reaction steps associated with two separate inflows of AVP into pituitary portal system, that is synthesized and released from hypothalamic parvocellular and magnocellular neuronal populations, as well as summarized reaction steps related to its individual and synergistic action with CRH on corticotropic cells. To explore the properties of extended model and its capacity to emulate the effects of AVP, nonlinear dynamical systems theory and bifurcation analyses based on numerical simulations were utilized to determine the dependence of ultradian oscillations on rate constants of the inflows of CRH and AVP from parvocellular neuronal populations, the conditions under which dynamical transitions occur due to their synergistic action and, moreover, the types of these transitions. The results show that under certain conditions, HPA system could enter into oscillatory dynamic states from stable steady state and vice versa under the influence of synergy reaction rate constant. Transitions between these dynamical states were always through supercritical Andronov-Hopf bifurcation point. Also, results revealed the conditions under which amplitudes of ultradian oscillations could increase several-fold due to CRH and AVP synergistic stimulation of ACTH secretion in accordance with results reported in the literature. Moreover, results showed experimentally observed superiority of CRH as a stimulator of ACTH secretion compared to AVP in humans. The proposed model can be very useful in studies related to the role of AVP and its synergistic action with CRH in life-threatening circumstances such as acute homeostasis dynamic crisis, autoimmune inflammations or severe hypovolemia requiring instant or several-days sustained corticosteroid excess levels. Moreover, the model can be helpful for investigations of indirect AVP-induced HPA activity by exogenously administered AVP used in therapeutic treatment.
PB  - Frontiers Media S.A.
T2  - Frontiers in Endokrinology
T1  - Influence of arginine vasopressin on the ultradian dynamics of Hypothalamic-Pituitary-Adrenal axis
VL  - 13
SP  - 976323
DO  - 10.3389/fendo.2022.976323
ER  - 

@article{
author = "Stojiljković, Aleksandra S. and Čupić, Željko and Maćešić, Stevan and Ivanović - Šašić, Ana and Kolar-Anić, Ljiljana",
year = "2022",
abstract = "Numerous studies on humans and animals have indicated that the corticotrophin-releasing hormone (CRH) and arginine vasopressin (AVP) stimulate both individually and synergistically secretion of adrenocorticotropic hormone (ACTH) by corticotropic cells in anterior pituitary. With aim to characterize and better comprehend the mechanisms underlying the effects of AVP on Hypothalamic-Pituitary-Adrenal (HPA) axis ultradian dynamics, AVP is here incorporated into our previously proposed stoichiometric model of HPA axis in humans. This extended nonlinear network reaction model took into account AVP by: reaction steps associated with two separate inflows of AVP into pituitary portal system, that is synthesized and released from hypothalamic parvocellular and magnocellular neuronal populations, as well as summarized reaction steps related to its individual and synergistic action with CRH on corticotropic cells. To explore the properties of extended model and its capacity to emulate the effects of AVP, nonlinear dynamical systems theory and bifurcation analyses based on numerical simulations were utilized to determine the dependence of ultradian oscillations on rate constants of the inflows of CRH and AVP from parvocellular neuronal populations, the conditions under which dynamical transitions occur due to their synergistic action and, moreover, the types of these transitions. The results show that under certain conditions, HPA system could enter into oscillatory dynamic states from stable steady state and vice versa under the influence of synergy reaction rate constant. Transitions between these dynamical states were always through supercritical Andronov-Hopf bifurcation point. Also, results revealed the conditions under which amplitudes of ultradian oscillations could increase several-fold due to CRH and AVP synergistic stimulation of ACTH secretion in accordance with results reported in the literature. Moreover, results showed experimentally observed superiority of CRH as a stimulator of ACTH secretion compared to AVP in humans. The proposed model can be very useful in studies related to the role of AVP and its synergistic action with CRH in life-threatening circumstances such as acute homeostasis dynamic crisis, autoimmune inflammations or severe hypovolemia requiring instant or several-days sustained corticosteroid excess levels. Moreover, the model can be helpful for investigations of indirect AVP-induced HPA activity by exogenously administered AVP used in therapeutic treatment.",
publisher = "Frontiers Media S.A.",
journal = "Frontiers in Endokrinology",
title = "Influence of arginine vasopressin on the ultradian dynamics of Hypothalamic-Pituitary-Adrenal axis",
volume = "13",
pages = "976323",
doi = "10.3389/fendo.2022.976323"
}

Stojiljković, A. S., Čupić, Ž., Maćešić, S., Ivanović - Šašić, A.,& Kolar-Anić, L.. (2022). Influence of arginine vasopressin on the ultradian dynamics of Hypothalamic-Pituitary-Adrenal axis. in Frontiers in Endokrinology
Frontiers Media S.A.., 13, 976323.
https://doi.org/10.3389/fendo.2022.976323

Stojiljković AS, Čupić Ž, Maćešić S, Ivanović - Šašić A, Kolar-Anić L. Influence of arginine vasopressin on the ultradian dynamics of Hypothalamic-Pituitary-Adrenal axis. in Frontiers in Endokrinology. 2022;13:976323.
doi:10.3389/fendo.2022.976323 .

Stojiljković, Aleksandra S., Čupić, Željko, Maćešić, Stevan, Ivanović - Šašić, Ana, Kolar-Anić, Ljiljana, "Influence of arginine vasopressin on the ultradian dynamics of Hypothalamic-Pituitary-Adrenal axis" in Frontiers in Endokrinology, 13 (2022):976323,
https://doi.org/10.3389/fendo.2022.976323 . .

TY  - CONF
AU  - Ivanović-Šašić, Ana
AU  - Maćešić, Stevan
AU  - Čupić, Željko
AU  - Kolar-Anić, Ljiljana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6403
AB  - The Bray-Liebhafsky (BL) is one of the most analyzed oscillatory reaction both experimentally and 
numerically. Most of the experimentally obtained dynamical states of this reaction realized in a 
continuously fed well stirred tank reactor (CSTR) are successfully simulated. Beside others, 
numerous structured chaotic dynamical states were obtained between each two periodic states in the 
period doubling rout to chaos with respect to specific flow rate as the control parameter. It was an 
universal scenario throughout the whole mixed-mode region, as well as throughout other mixed-mode 
regions obtained under different initial conditions. However, the intermittent oscillations consistent 
of chaotic mixture of large-amplitude relaxation oscillations, grouped in bursts and small-amplitude 
sinusoidal ones or even quiescent parts between them known as gaps were also generated 
experimentally in the Bray–Liebhafsky reaction by varying different parameters such as temperature, 
flow rate or reactant concentrations under CSTR conditions. Nevertheless, it will be shown here that 
intermittent oscillations can be simulated by already published model of the BL reaction network.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
T1  - Various dinamical states in the Bray-Liebhafsky oscillatory reaction- from periodicity to intermittent chaos
VL  - I
SP  - 199
EP  - 199
UR  - https://hdl.handle.net/21.15107/rcub_cer_6403
ER  - 

@conference{
author = "Ivanović-Šašić, Ana and Maćešić, Stevan and Čupić, Željko and Kolar-Anić, Ljiljana",
year = "2021",
abstract = "The Bray-Liebhafsky (BL) is one of the most analyzed oscillatory reaction both experimentally and 
numerically. Most of the experimentally obtained dynamical states of this reaction realized in a 
continuously fed well stirred tank reactor (CSTR) are successfully simulated. Beside others, 
numerous structured chaotic dynamical states were obtained between each two periodic states in the 
period doubling rout to chaos with respect to specific flow rate as the control parameter. It was an 
universal scenario throughout the whole mixed-mode region, as well as throughout other mixed-mode 
regions obtained under different initial conditions. However, the intermittent oscillations consistent 
of chaotic mixture of large-amplitude relaxation oscillations, grouped in bursts and small-amplitude 
sinusoidal ones or even quiescent parts between them known as gaps were also generated 
experimentally in the Bray–Liebhafsky reaction by varying different parameters such as temperature, 
flow rate or reactant concentrations under CSTR conditions. Nevertheless, it will be shown here that 
intermittent oscillations can be simulated by already published model of the BL reaction network.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia",
title = "Various dinamical states in the Bray-Liebhafsky oscillatory reaction- from periodicity to intermittent chaos",
volume = "I",
pages = "199-199",
url = "https://hdl.handle.net/21.15107/rcub_cer_6403"
}

Ivanović-Šašić, A., Maćešić, S., Čupić, Ž.,& Kolar-Anić, L.. (2021). Various dinamical states in the Bray-Liebhafsky oscillatory reaction- from periodicity to intermittent chaos. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 199-199.
https://hdl.handle.net/21.15107/rcub_cer_6403

Ivanović-Šašić A, Maćešić S, Čupić Ž, Kolar-Anić L. Various dinamical states in the Bray-Liebhafsky oscillatory reaction- from periodicity to intermittent chaos. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia. 2021;I:199-199.
https://hdl.handle.net/21.15107/rcub_cer_6403 .

Ivanović-Šašić, Ana, Maćešić, Stevan, Čupić, Željko, Kolar-Anić, Ljiljana, "Various dinamical states in the Bray-Liebhafsky oscillatory reaction- from periodicity to intermittent chaos" in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia, I (2021):199-199,
https://hdl.handle.net/21.15107/rcub_cer_6403 .

TY  - CONF
AU  - Čupić, Željko
AU  - Ivanović-Šašić, Ana
AU  - Maćešić, Stevan
AU  - Anić, Slobodan
AU  - Kolar-Anić, Ljiljana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6404
AB  - The first discovered homogeneous oscillatory reaction was the Bray-Liebhafsky (BL) one, 
described in a paper published exactly 100 years ago. However, the applicability of oscillatory 
reactions in chemical computing was recently discovered. Here we intend to expose the native 
computing concept applied to intermittent states of the BL reaction, because we believe that 
this particular state may have some advantages. For this purpose, numerical simulations will be
used based on the known model. Sequences of perturbations will be introduced by adding iodate 
(IO3
-
) and hydrogen peroxide (H2O2), separately, as well as in various combinations with one 
another. It will be shown that dynamic states obtained after perturbations with same species 
depend very much on the sequence in which these species were used in perturbations. 
Additionally, it will be shown that obtained dynamic states shift the system from chaotic 
intermittent dynamic state to different complex periodic states. Hence, the applicability of the 
BL reaction system in chemical computing was demonstrated.
PB  - Kragujevac, Serbia : Institute for Information Technologies, University of Kragujevac
C3  - Book of proceedings - 1st International Conference on Chemo and BioInformatics  ICCBIKG 2021, October 26-27, 2021, Kragujevac, Serbia
T1  - Applicability of Bray-Liebhafsky reaction for chemical computing
SP  - 431
EP  - 434
DO  - 10.46793/ICCBI21.431C
ER  - 

@conference{
author = "Čupić, Željko and Ivanović-Šašić, Ana and Maćešić, Stevan and Anić, Slobodan and Kolar-Anić, Ljiljana",
year = "2021",
abstract = "The first discovered homogeneous oscillatory reaction was the Bray-Liebhafsky (BL) one, 
described in a paper published exactly 100 years ago. However, the applicability of oscillatory 
reactions in chemical computing was recently discovered. Here we intend to expose the native 
computing concept applied to intermittent states of the BL reaction, because we believe that 
this particular state may have some advantages. For this purpose, numerical simulations will be
used based on the known model. Sequences of perturbations will be introduced by adding iodate 
(IO3
-
) and hydrogen peroxide (H2O2), separately, as well as in various combinations with one 
another. It will be shown that dynamic states obtained after perturbations with same species 
depend very much on the sequence in which these species were used in perturbations. 
Additionally, it will be shown that obtained dynamic states shift the system from chaotic 
intermittent dynamic state to different complex periodic states. Hence, the applicability of the 
BL reaction system in chemical computing was demonstrated.",
publisher = "Kragujevac, Serbia : Institute for Information Technologies, University of Kragujevac",
journal = "Book of proceedings - 1st International Conference on Chemo and BioInformatics  ICCBIKG 2021, October 26-27, 2021, Kragujevac, Serbia",
title = "Applicability of Bray-Liebhafsky reaction for chemical computing",
pages = "431-434",
doi = "10.46793/ICCBI21.431C"
}

Čupić, Ž., Ivanović-Šašić, A., Maćešić, S., Anić, S.,& Kolar-Anić, L.. (2021). Applicability of Bray-Liebhafsky reaction for chemical computing. in Book of proceedings - 1st International Conference on Chemo and BioInformatics  ICCBIKG 2021, October 26-27, 2021, Kragujevac, Serbia
Kragujevac, Serbia : Institute for Information Technologies, University of Kragujevac., 431-434.
https://doi.org/10.46793/ICCBI21.431C

Čupić Ž, Ivanović-Šašić A, Maćešić S, Anić S, Kolar-Anić L. Applicability of Bray-Liebhafsky reaction for chemical computing. in Book of proceedings - 1st International Conference on Chemo and BioInformatics  ICCBIKG 2021, October 26-27, 2021, Kragujevac, Serbia. 2021;:431-434.
doi:10.46793/ICCBI21.431C .

Čupić, Željko, Ivanović-Šašić, Ana, Maćešić, Stevan, Anić, Slobodan, Kolar-Anić, Ljiljana, "Applicability of Bray-Liebhafsky reaction for chemical computing" in Book of proceedings - 1st International Conference on Chemo and BioInformatics  ICCBIKG 2021, October 26-27, 2021, Kragujevac, Serbia (2021):431-434,
https://doi.org/10.46793/ICCBI21.431C . .

TY  - CONF
AU  - Pavlović, Stefan
AU  - Marinković, Dalibor
AU  - Milovanović, Biljana
AU  - Tišma, Marina
AU  - Mojović, Ljiljana
AU  - Stanković, Miroslav
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4721
AB  - Waste-based zeolite supported CaO catalyst (20CaO/ZMFA) was synthesized by ultrasound-assisted impregnation from alcoholic suspension. Zeolite was previously synthesized from lignite coal fly ash (FA) by alkali activation in miniature rotating autoclave reactors (6.25 M NaOH, 260 °C, 4 h), whereas CaO was prepared by chicken eggshell (ES) calcination (900 ºC, 4 h). The final catalyst was obtained by precursor calcination at 550 °C, 4 h. The obtained catalyst was used for catalyst stability tests (reusability and leaching) in transesterification (methanol/oil molar ratio of 12/1, catalyst concentration of 4 wt%, and temperature of 60 °C) of three types of oily feedstocks, fresh sunflower oil (SFO), waste cooking oil (WCO) and model thermal treated (230 °C, 5 days) sunflower oil (SFOTT). The concentration of triacylglycerols (TAGs) and fatty acid methyl esters (FAMEs) was determined by GC and HPLC, respectively. The 20CaO/ZMFA exhibited high activity (FAME content > 96.5 % for 180 min) in the transesterification of all three oily feedstocks. The stability tests are shown that catalyst is stable even in four reaction cycles for SFO and WCO, whereas the Ca 2+ leaching was significantly lower compared to similar catalytic systems.
PB  - Fuel Science Center
C3  - 9th International Conference Fuel Science - From Production to Propulsion 2021
T1  - Stability of waste-based zeolite supported CaO catalyst for biodiesel production from waste oily feedstocks
UR  - https://hdl.handle.net/21.15107/rcub_cer_4721
ER  - 

@conference{
author = "Pavlović, Stefan and Marinković, Dalibor and Milovanović, Biljana and Tišma, Marina and Mojović, Ljiljana and Stanković, Miroslav",
year = "2021",
abstract = "Waste-based zeolite supported CaO catalyst (20CaO/ZMFA) was synthesized by ultrasound-assisted impregnation from alcoholic suspension. Zeolite was previously synthesized from lignite coal fly ash (FA) by alkali activation in miniature rotating autoclave reactors (6.25 M NaOH, 260 °C, 4 h), whereas CaO was prepared by chicken eggshell (ES) calcination (900 ºC, 4 h). The final catalyst was obtained by precursor calcination at 550 °C, 4 h. The obtained catalyst was used for catalyst stability tests (reusability and leaching) in transesterification (methanol/oil molar ratio of 12/1, catalyst concentration of 4 wt%, and temperature of 60 °C) of three types of oily feedstocks, fresh sunflower oil (SFO), waste cooking oil (WCO) and model thermal treated (230 °C, 5 days) sunflower oil (SFOTT). The concentration of triacylglycerols (TAGs) and fatty acid methyl esters (FAMEs) was determined by GC and HPLC, respectively. The 20CaO/ZMFA exhibited high activity (FAME content > 96.5 % for 180 min) in the transesterification of all three oily feedstocks. The stability tests are shown that catalyst is stable even in four reaction cycles for SFO and WCO, whereas the Ca 2+ leaching was significantly lower compared to similar catalytic systems.",
publisher = "Fuel Science Center",
journal = "9th International Conference Fuel Science - From Production to Propulsion 2021",
title = "Stability of waste-based zeolite supported CaO catalyst for biodiesel production from waste oily feedstocks",
url = "https://hdl.handle.net/21.15107/rcub_cer_4721"
}

Pavlović, S., Marinković, D., Milovanović, B., Tišma, M., Mojović, L.,& Stanković, M.. (2021). Stability of waste-based zeolite supported CaO catalyst for biodiesel production from waste oily feedstocks. in 9th International Conference Fuel Science - From Production to Propulsion 2021
Fuel Science Center..
https://hdl.handle.net/21.15107/rcub_cer_4721

Pavlović S, Marinković D, Milovanović B, Tišma M, Mojović L, Stanković M. Stability of waste-based zeolite supported CaO catalyst for biodiesel production from waste oily feedstocks. in 9th International Conference Fuel Science - From Production to Propulsion 2021. 2021;.
https://hdl.handle.net/21.15107/rcub_cer_4721 .

Pavlović, Stefan, Marinković, Dalibor, Milovanović, Biljana, Tišma, Marina, Mojović, Ljiljana, Stanković, Miroslav, "Stability of waste-based zeolite supported CaO catalyst for biodiesel production from waste oily feedstocks" in 9th International Conference Fuel Science - From Production to Propulsion 2021 (2021),
https://hdl.handle.net/21.15107/rcub_cer_4721 .

TY  - JOUR
AU  - Pavlović, Stefan
AU  - Marinković, Dalibor
AU  - Kostić, Milan
AU  - Lončarević, Davor
AU  - Mojović, Ljiljana
AU  - Stanković, Miroslav
AU  - Veljković, Vlada B.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4035
AB  - Lignite coal fly ash (FA) from a domestic thermal power plant was converted into a pure cancrinite zeolitic material (ZMFA) using a novel, custom-made, rotating autoclave reactor system by a short-term alkali activation process. The obtained ZMFA was used as catalyst support of calcium oxide as an active component derived from waste chicken eggshells (ES). The ZMFA supported calcium oxide catalyst (xCaO/ZMFA) was synthesized by means of the ultrasound-assisted method. The influence of different concentrations of dispersed calcium oxide (x = 5–20 wt%) over ZMFA and thermal treatment at different temperatures (450–600 °C) were studied. The structural and morphological characterization showed that the original cancrinite structure was preserved. The basicity and textural properties indicated the presence of strong active sites in a well-defined pore network suitable for the reactions of bulky organic compounds such as triacylglycerols (TAGs). The highest activity (96.5% of fatty acid methyl esters) in the methanolysis of sunflower oil was achieved with the 20CaO/ZMFA catalyst under reaction conditions: temperature of 60 °C, methanol/oil molar ratio of 12:1, catalyst concentration of 4 wt%, and reaction time of 2 h. It was found that the optimal calcination temperature of the catalyst precursor was 550 °C. At calcination temperatures above 550 °C, the melting of the glassy phase became more intense whereby the molten phase partially reacted with calcium oxide forming the catalytically inactive calcium silicate compounds (wollastonite, larnite, etc.). The rate constants of the two tested kinetic models were correlated with the concentrations of active calcium oxide. The MRPD of both models was low indicating their reliability.
PB  - Elsevier
T2  - Fuel
T1  - The chicken eggshell calcium oxide ultrasonically dispersed over lignite coal fly ash-based cancrinite zeolite support as a catalyst for biodiesel production
VL  - 289
SP  - 119912
DO  - 10.1016/j.fuel.2020.119912
ER  - 

@article{
author = "Pavlović, Stefan and Marinković, Dalibor and Kostić, Milan and Lončarević, Davor and Mojović, Ljiljana and Stanković, Miroslav and Veljković, Vlada B.",
year = "2021",
abstract = "Lignite coal fly ash (FA) from a domestic thermal power plant was converted into a pure cancrinite zeolitic material (ZMFA) using a novel, custom-made, rotating autoclave reactor system by a short-term alkali activation process. The obtained ZMFA was used as catalyst support of calcium oxide as an active component derived from waste chicken eggshells (ES). The ZMFA supported calcium oxide catalyst (xCaO/ZMFA) was synthesized by means of the ultrasound-assisted method. The influence of different concentrations of dispersed calcium oxide (x = 5–20 wt%) over ZMFA and thermal treatment at different temperatures (450–600 °C) were studied. The structural and morphological characterization showed that the original cancrinite structure was preserved. The basicity and textural properties indicated the presence of strong active sites in a well-defined pore network suitable for the reactions of bulky organic compounds such as triacylglycerols (TAGs). The highest activity (96.5% of fatty acid methyl esters) in the methanolysis of sunflower oil was achieved with the 20CaO/ZMFA catalyst under reaction conditions: temperature of 60 °C, methanol/oil molar ratio of 12:1, catalyst concentration of 4 wt%, and reaction time of 2 h. It was found that the optimal calcination temperature of the catalyst precursor was 550 °C. At calcination temperatures above 550 °C, the melting of the glassy phase became more intense whereby the molten phase partially reacted with calcium oxide forming the catalytically inactive calcium silicate compounds (wollastonite, larnite, etc.). The rate constants of the two tested kinetic models were correlated with the concentrations of active calcium oxide. The MRPD of both models was low indicating their reliability.",
publisher = "Elsevier",
journal = "Fuel",
title = "The chicken eggshell calcium oxide ultrasonically dispersed over lignite coal fly ash-based cancrinite zeolite support as a catalyst for biodiesel production",
volume = "289",
pages = "119912",
doi = "10.1016/j.fuel.2020.119912"
}

Pavlović, S., Marinković, D., Kostić, M., Lončarević, D., Mojović, L., Stanković, M.,& Veljković, V. B.. (2021). The chicken eggshell calcium oxide ultrasonically dispersed over lignite coal fly ash-based cancrinite zeolite support as a catalyst for biodiesel production. in Fuel
Elsevier., 289, 119912.
https://doi.org/10.1016/j.fuel.2020.119912

Pavlović S, Marinković D, Kostić M, Lončarević D, Mojović L, Stanković M, Veljković VB. The chicken eggshell calcium oxide ultrasonically dispersed over lignite coal fly ash-based cancrinite zeolite support as a catalyst for biodiesel production. in Fuel. 2021;289:119912.
doi:10.1016/j.fuel.2020.119912 .

Pavlović, Stefan, Marinković, Dalibor, Kostić, Milan, Lončarević, Davor, Mojović, Ljiljana, Stanković, Miroslav, Veljković, Vlada B., "The chicken eggshell calcium oxide ultrasonically dispersed over lignite coal fly ash-based cancrinite zeolite support as a catalyst for biodiesel production" in Fuel, 289 (2021):119912,
https://doi.org/10.1016/j.fuel.2020.119912 . .

TY  - JOUR
AU  - Pavlović, Stefan
AU  - Šelo, Gordana
AU  - Marinković, Dalibor
AU  - Planinić, Mirela
AU  - Tišma, Marina
AU  - Stanković, Miroslav
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4138
AB  - The statistical experimental design (DoE) and optimization (Response Surface Methodology combined with Box–Behnken design) of sunflower oil transesterification catalyzed by waste chicken eggshell-based catalyst were conducted in a custom-made microreactor at 60 °C. The catalyst was synthesized by the hydration–dehydration method and subsequent calcination at 600 °C. Comprehensive characterization of the obtained catalyst was conducted using: X-ray powder diffractometry (XRD), X-ray fluorescence (XRF), Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), N2 physisorption, and Hg-porosimetry. Structural, morphological, and textural results showed that the obtained catalyst exhibited high porosity and regular dispersity of plate-like CaO as an active species. The obtained optimal residence time, catalyst concentration, and methanol/oil volume ratio for the continuous reaction in microreactor were 10 min, 0.1 g g−1, and 3:1, respectively. The analysis of variance (ANOVA) showed that the obtained reduced quadratic model was adequate for experimental results fitting. The reaction in the microreactor was significantly intensified compared to a conventional batch reactor, as seen through the fatty acid methyl esters (FAMEs) content after 10 min, which was 51.2% and 18.6%, respectively.
PB  - MDPI
T2  - Micromachines
T1  - Transesterification of Sunflower Oil Over Waste Chicken Eggshell-Based Catalyst in a Microreactor: An Optimization Study
VL  - 12
IS  - 2
SP  - 120
DO  - 10.3390/mi12020120
ER  - 

@article{
author = "Pavlović, Stefan and Šelo, Gordana and Marinković, Dalibor and Planinić, Mirela and Tišma, Marina and Stanković, Miroslav",
year = "2021",
abstract = "The statistical experimental design (DoE) and optimization (Response Surface Methodology combined with Box–Behnken design) of sunflower oil transesterification catalyzed by waste chicken eggshell-based catalyst were conducted in a custom-made microreactor at 60 °C. The catalyst was synthesized by the hydration–dehydration method and subsequent calcination at 600 °C. Comprehensive characterization of the obtained catalyst was conducted using: X-ray powder diffractometry (XRD), X-ray fluorescence (XRF), Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), N2 physisorption, and Hg-porosimetry. Structural, morphological, and textural results showed that the obtained catalyst exhibited high porosity and regular dispersity of plate-like CaO as an active species. The obtained optimal residence time, catalyst concentration, and methanol/oil volume ratio for the continuous reaction in microreactor were 10 min, 0.1 g g−1, and 3:1, respectively. The analysis of variance (ANOVA) showed that the obtained reduced quadratic model was adequate for experimental results fitting. The reaction in the microreactor was significantly intensified compared to a conventional batch reactor, as seen through the fatty acid methyl esters (FAMEs) content after 10 min, which was 51.2% and 18.6%, respectively.",
publisher = "MDPI",
journal = "Micromachines",
title = "Transesterification of Sunflower Oil Over Waste Chicken Eggshell-Based Catalyst in a Microreactor: An Optimization Study",
volume = "12",
number = "2",
pages = "120",
doi = "10.3390/mi12020120"
}

Pavlović, S., Šelo, G., Marinković, D., Planinić, M., Tišma, M.,& Stanković, M.. (2021). Transesterification of Sunflower Oil Over Waste Chicken Eggshell-Based Catalyst in a Microreactor: An Optimization Study. in Micromachines
MDPI., 12(2), 120.
https://doi.org/10.3390/mi12020120

Pavlović S, Šelo G, Marinković D, Planinić M, Tišma M, Stanković M. Transesterification of Sunflower Oil Over Waste Chicken Eggshell-Based Catalyst in a Microreactor: An Optimization Study. in Micromachines. 2021;12(2):120.
doi:10.3390/mi12020120 .

Pavlović, Stefan, Šelo, Gordana, Marinković, Dalibor, Planinić, Mirela, Tišma, Marina, Stanković, Miroslav, "Transesterification of Sunflower Oil Over Waste Chicken Eggshell-Based Catalyst in a Microreactor: An Optimization Study" in Micromachines, 12, no. 2 (2021):120,
https://doi.org/10.3390/mi12020120 . .

TY  - JOUR
AU  - Bubanja, Itana Nuša
AU  - Ivanović-Šašić, Ana
AU  - Čupić, Željko
AU  - Anić, Slobodan
AU  - Kolar-Anić, Ljiljana
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3701
AB  - Dynamic states with intermittent oscillations consist of a chaotic mixture of large
amplitude relaxation oscillations grouped in bursts, and between them, small-amplitude
sinusoidal oscillations, or even the quiescent parts, known as gaps. In this study,
intermittent dynamic states were generated in Bray–Liebhafsky (BL) oscillatory reaction in
an isothermal continuously-fed, well-stirred tank reactor (CSTR) controled by changes of
specific flow rate. The intermittent states were found between two regular periodic states
and obtained for specific flow rate values from 0.020 to 0.082 min−1 . Phenomenological
analysis based on the quantitative characteristics of intermittent oscillations, as well
as, the largest Lyapunov exponents calculated from experimentally obtained time
series, both indicated the same type of behavior. Namely, fully developed chaos
arises when approaching to the vertical asymptote which is somewhere between two
bifurcations. Hence, this study proposes described route to fully developed chaos in
the Bray-Liebhafsky oscillatory reaction as an explanation for experimentally observed
intermittent dynamics. This is in correlation with our previously obtained results where the
most chaotic intermittent chaos was achieved between the periodic oscillatory dynamic
state and stable steady state, generated in BL under CSTR conditions by varying
temperature and inflow potassium iodate concentration. Moreover, it was shown that,
besides the largest Lyapunov exponent, analysis of chaos in experimentally obtained
intermittent states can be achieved by a simpler approach which involves using the
quantitative characteristics of the BL reaction evolution, that is, the number and length
of gaps and bursts obtained for the various values of specific flow rates.
PB  - Frontiers Media S.A.
T2  - Frontiers in chemistry
T1  - Intermittent Chaos in the CSTR Bray–Liebhafsky Oscillator-Specific Flow Rate Dependence
VL  - 8
SP  - 560274
DO  - 10.3389/fchem.2020.560274
ER  - 

@article{
author = "Bubanja, Itana Nuša and Ivanović-Šašić, Ana and Čupić, Željko and Anić, Slobodan and Kolar-Anić, Ljiljana",
year = "2020",
abstract = "Dynamic states with intermittent oscillations consist of a chaotic mixture of large
amplitude relaxation oscillations grouped in bursts, and between them, small-amplitude
sinusoidal oscillations, or even the quiescent parts, known as gaps. In this study,
intermittent dynamic states were generated in Bray–Liebhafsky (BL) oscillatory reaction in
an isothermal continuously-fed, well-stirred tank reactor (CSTR) controled by changes of
specific flow rate. The intermittent states were found between two regular periodic states
and obtained for specific flow rate values from 0.020 to 0.082 min−1 . Phenomenological
analysis based on the quantitative characteristics of intermittent oscillations, as well
as, the largest Lyapunov exponents calculated from experimentally obtained time
series, both indicated the same type of behavior. Namely, fully developed chaos
arises when approaching to the vertical asymptote which is somewhere between two
bifurcations. Hence, this study proposes described route to fully developed chaos in
the Bray-Liebhafsky oscillatory reaction as an explanation for experimentally observed
intermittent dynamics. This is in correlation with our previously obtained results where the
most chaotic intermittent chaos was achieved between the periodic oscillatory dynamic
state and stable steady state, generated in BL under CSTR conditions by varying
temperature and inflow potassium iodate concentration. Moreover, it was shown that,
besides the largest Lyapunov exponent, analysis of chaos in experimentally obtained
intermittent states can be achieved by a simpler approach which involves using the
quantitative characteristics of the BL reaction evolution, that is, the number and length
of gaps and bursts obtained for the various values of specific flow rates.",
publisher = "Frontiers Media S.A.",
journal = "Frontiers in chemistry",
title = "Intermittent Chaos in the CSTR Bray–Liebhafsky Oscillator-Specific Flow Rate Dependence",
volume = "8",
pages = "560274",
doi = "10.3389/fchem.2020.560274"
}

Bubanja, I. N., Ivanović-Šašić, A., Čupić, Ž., Anić, S.,& Kolar-Anić, L.. (2020). Intermittent Chaos in the CSTR Bray–Liebhafsky Oscillator-Specific Flow Rate Dependence. in Frontiers in chemistry
Frontiers Media S.A.., 8, 560274.
https://doi.org/10.3389/fchem.2020.560274

Bubanja IN, Ivanović-Šašić A, Čupić Ž, Anić S, Kolar-Anić L. Intermittent Chaos in the CSTR Bray–Liebhafsky Oscillator-Specific Flow Rate Dependence. in Frontiers in chemistry. 2020;8:560274.
doi:10.3389/fchem.2020.560274 .

Bubanja, Itana Nuša, Ivanović-Šašić, Ana, Čupić, Željko, Anić, Slobodan, Kolar-Anić, Ljiljana, "Intermittent Chaos in the CSTR Bray–Liebhafsky Oscillator-Specific Flow Rate Dependence" in Frontiers in chemistry, 8 (2020):560274,
https://doi.org/10.3389/fchem.2020.560274 . .

TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Zdujić, Miodrag
AU  - Veljović, Đorđe
AU  - Krstić, Jugoslav
AU  - Banković-Ilić, Ivana B.
AU  - Veljković, Vlada B.
AU  - Stamenković, Olivera
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3217
AB  - The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.
PB  - Elsevier
T2  - Renewable Energy
T1  - Valorization of walnut shell ash as a catalyst for biodiesel production
VL  - 147
SP  - 1033
EP  - 1043
DO  - 10.1016/j.renene.2019.09.056
ER  - 

@article{
author = "Miladinović, Marija R. and Zdujić, Miodrag and Veljović, Đorđe and Krstić, Jugoslav and Banković-Ilić, Ivana B. and Veljković, Vlada B. and Stamenković, Olivera",
year = "2020",
abstract = "The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.",
publisher = "Elsevier",
journal = "Renewable Energy",
title = "Valorization of walnut shell ash as a catalyst for biodiesel production",
volume = "147",
pages = "1033-1043",
doi = "10.1016/j.renene.2019.09.056"
}

Miladinović, M. R., Zdujić, M., Veljović, Đ., Krstić, J., Banković-Ilić, I. B., Veljković, V. B.,& Stamenković, O.. (2020). Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy
Elsevier., 147, 1033-1043.
https://doi.org/10.1016/j.renene.2019.09.056

Miladinović MR, Zdujić M, Veljović Đ, Krstić J, Banković-Ilić IB, Veljković VB, Stamenković O. Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy. 2020;147:1033-1043.
doi:10.1016/j.renene.2019.09.056 .

Miladinović, Marija R., Zdujić, Miodrag, Veljović, Đorđe, Krstić, Jugoslav, Banković-Ilić, Ivana B., Veljković, Vlada B., Stamenković, Olivera, "Valorization of walnut shell ash as a catalyst for biodiesel production" in Renewable Energy, 147 (2020):1033-1043,
https://doi.org/10.1016/j.renene.2019.09.056 . .

TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Zdujić, Miodrag
AU  - Veljović, Đorđe
AU  - Krstić, Jugoslav
AU  - Banković-Ilić, Ivana B.
AU  - Veljković, Vlada B.
AU  - Stamenković, Olivera
PY  - 2020
UR  - http://dais.sanu.ac.rs/123456789/6903
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3319
AB  - The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.
PB  - Elsevier
T2  - Renewable Energy
T1  - Valorization of walnut shell ash as a catalyst for biodiesel production
VL  - 147
SP  - 1033
EP  - 1043
DO  - 10.1016/j.renene.2019.09.056
ER  - 

@article{
author = "Miladinović, Marija R. and Zdujić, Miodrag and Veljović, Đorđe and Krstić, Jugoslav and Banković-Ilić, Ivana B. and Veljković, Vlada B. and Stamenković, Olivera",
year = "2020",
abstract = "The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.",
publisher = "Elsevier",
journal = "Renewable Energy",
title = "Valorization of walnut shell ash as a catalyst for biodiesel production",
volume = "147",
pages = "1033-1043",
doi = "10.1016/j.renene.2019.09.056"
}

Miladinović, M. R., Zdujić, M., Veljović, Đ., Krstić, J., Banković-Ilić, I. B., Veljković, V. B.,& Stamenković, O.. (2020). Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy
Elsevier., 147, 1033-1043.
https://doi.org/10.1016/j.renene.2019.09.056

Miladinović MR, Zdujić M, Veljović Đ, Krstić J, Banković-Ilić IB, Veljković VB, Stamenković O. Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy. 2020;147:1033-1043.
doi:10.1016/j.renene.2019.09.056 .

Miladinović, Marija R., Zdujić, Miodrag, Veljović, Đorđe, Krstić, Jugoslav, Banković-Ilić, Ivana B., Veljković, Vlada B., Stamenković, Olivera, "Valorization of walnut shell ash as a catalyst for biodiesel production" in Renewable Energy, 147 (2020):1033-1043,
https://doi.org/10.1016/j.renene.2019.09.056 . .

TY  - JOUR
AU  - Maksimović, Jelena
AU  - Čupić, Željko
AU  - Manojlović, Nedeljko
AU  - Đerić, Aleksandra
AU  - Anić, Slobodan
AU  - Kolar-Anić, Ljiljana
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3603
AB  - Two hydroxyanthraquinones, alizarin and purpurin, that have been used throughout
history as a natural pigment, were extracted from roots of Rubia tinctorum from
Serbia. As substances with important chemical activities and, therefore, with wide
applications (for example in dyeing textile fabrics as well as in pharmacy because of
their anti-inflammatory, anti-cancer, antiviral, antimicrobial and antioxidant activities,
etc.) they were analyzed in the kinetically very sensitive Bray–Liebhafsky (BL)
oscillatory reaction. However, although they are both, hydroxyanthraquinones it is
shown that their interactions with BL nonlinear reaction system differ significantly.
Consequently, two different reactions were used to explain the mechanism of their
chemical activities. The numerical simulations based on a standard model of the BL
oscillatory reaction together with proposed reactions due to alizarin/purpurin interactions
with a matrix are correlated with experimental investigations. Moreover, it
is shown that very small amounts of alizarin and purpurin (from about 1 × 10–7 M)
produce the response of the BL matrix such that micro-quantitative analysis based
on the BL oscillatory reaction can be successfully performed in this reaction system.
The linear response of the BL matrix on the presence of alizarin and purpurin
(necessary for microquantitative determination) is analyzed as a function of two
concentration sensitive parameters: pre-oscillatory period τ1 and potential shift after
perturbation ΔE.
PB  - Springer Nature Switzerland AG 2020
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Bray–Liebhafsky oscillatory reaction as the matrix system for the kinetic determination of microquantities of alizarin and purpurin
VL  - 130
SP  - 655
EP  - 688
DO  - 10.1007/s11144-020-01798-5
ER  - 

@article{
author = "Maksimović, Jelena and Čupić, Željko and Manojlović, Nedeljko and Đerić, Aleksandra and Anić, Slobodan and Kolar-Anić, Ljiljana",
year = "2020",
abstract = "Two hydroxyanthraquinones, alizarin and purpurin, that have been used throughout
history as a natural pigment, were extracted from roots of Rubia tinctorum from
Serbia. As substances with important chemical activities and, therefore, with wide
applications (for example in dyeing textile fabrics as well as in pharmacy because of
their anti-inflammatory, anti-cancer, antiviral, antimicrobial and antioxidant activities,
etc.) they were analyzed in the kinetically very sensitive Bray–Liebhafsky (BL)
oscillatory reaction. However, although they are both, hydroxyanthraquinones it is
shown that their interactions with BL nonlinear reaction system differ significantly.
Consequently, two different reactions were used to explain the mechanism of their
chemical activities. The numerical simulations based on a standard model of the BL
oscillatory reaction together with proposed reactions due to alizarin/purpurin interactions
with a matrix are correlated with experimental investigations. Moreover, it
is shown that very small amounts of alizarin and purpurin (from about 1 × 10–7 M)
produce the response of the BL matrix such that micro-quantitative analysis based
on the BL oscillatory reaction can be successfully performed in this reaction system.
The linear response of the BL matrix on the presence of alizarin and purpurin
(necessary for microquantitative determination) is analyzed as a function of two
concentration sensitive parameters: pre-oscillatory period τ1 and potential shift after
perturbation ΔE.",
publisher = "Springer Nature Switzerland AG 2020",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Bray–Liebhafsky oscillatory reaction as the matrix system for the kinetic determination of microquantities of alizarin and purpurin",
volume = "130",
pages = "655-688",
doi = "10.1007/s11144-020-01798-5"
}

Maksimović, J., Čupić, Ž., Manojlović, N., Đerić, A., Anić, S.,& Kolar-Anić, L.. (2020). Bray–Liebhafsky oscillatory reaction as the matrix system for the kinetic determination of microquantities of alizarin and purpurin. in Reaction Kinetics, Mechanisms and Catalysis
Springer Nature Switzerland AG 2020., 130, 655-688.
https://doi.org/10.1007/s11144-020-01798-5

Maksimović J, Čupić Ž, Manojlović N, Đerić A, Anić S, Kolar-Anić L. Bray–Liebhafsky oscillatory reaction as the matrix system for the kinetic determination of microquantities of alizarin and purpurin. in Reaction Kinetics, Mechanisms and Catalysis. 2020;130:655-688.
doi:10.1007/s11144-020-01798-5 .

Maksimović, Jelena, Čupić, Željko, Manojlović, Nedeljko, Đerić, Aleksandra, Anić, Slobodan, Kolar-Anić, Ljiljana, "Bray–Liebhafsky oscillatory reaction as the matrix system for the kinetic determination of microquantities of alizarin and purpurin" in Reaction Kinetics, Mechanisms and Catalysis, 130 (2020):655-688,
https://doi.org/10.1007/s11144-020-01798-5 . .

TY  - JOUR
AU  - Dodevski, Vladimir
AU  - Janković, Bojan
AU  - Radović, Ivana
AU  - Stojmenović, Marija
AU  - Čebela, Maria
AU  - Nikolić, Željka
AU  - Pagnacco, Maja
AU  - Panić, Ivan
AU  - Stanković, Miroslav
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3230
AB  - In this work, plane tree seed-based activated carbons were characterized in detail for a variety of applications. The particularly important area of application would be in the artificial photosynthesis. After carbonization process of biomass precursor at 650°C, the resulting preliminary activated carbons were activated at various temperatures. The activated carbons were characterized by oxygen functionalities (a particularly important role has ester oxygen groups) which provide a unique microstructure. The chemical compositions of as-prepared activated carbons were analyzed through Fourier transform infrared and Raman spectra as well as gas chromatography–mass spectroscopy analysis, while morphology was observed by scanning electron microscopy analysis. Applied analysis showed that detected graphite mainly becomes uniformly nanocrystalline system. The current study also explored the applicability of carbon material obtained from plane tree seed as a potential gaseous adsorbent. The characterization showed that the tested material contains both mesopores and micropores, and this should be advantageous for the gas sorption process, since mesopores may provide low-resistant pathways for the diffusion of CO2 molecules, while the micropores are the most suitable for trapping of CO2. The sorption process analysis (including adsorption/desorption isotherms behavior) shows indication that the rate-limiting step of CO2 adsorption onto activated carbon is probably governed by diffusion-controlled process, especially at temperatures below 850°C.
PB  - SAGE Publications
T2  - Energy & Environment
T1  - Characterization analysis of activated carbon derived from the carbonization process of plane tree (Platanus orientalis) seeds
VL  - 31
IS  - 4
SP  - 583
EP  - 612
DO  - 10.1177/0958305X19880878
ER  - 

@article{
author = "Dodevski, Vladimir and Janković, Bojan and Radović, Ivana and Stojmenović, Marija and Čebela, Maria and Nikolić, Željka and Pagnacco, Maja and Panić, Ivan and Stanković, Miroslav",
year = "2020",
abstract = "In this work, plane tree seed-based activated carbons were characterized in detail for a variety of applications. The particularly important area of application would be in the artificial photosynthesis. After carbonization process of biomass precursor at 650°C, the resulting preliminary activated carbons were activated at various temperatures. The activated carbons were characterized by oxygen functionalities (a particularly important role has ester oxygen groups) which provide a unique microstructure. The chemical compositions of as-prepared activated carbons were analyzed through Fourier transform infrared and Raman spectra as well as gas chromatography–mass spectroscopy analysis, while morphology was observed by scanning electron microscopy analysis. Applied analysis showed that detected graphite mainly becomes uniformly nanocrystalline system. The current study also explored the applicability of carbon material obtained from plane tree seed as a potential gaseous adsorbent. The characterization showed that the tested material contains both mesopores and micropores, and this should be advantageous for the gas sorption process, since mesopores may provide low-resistant pathways for the diffusion of CO2 molecules, while the micropores are the most suitable for trapping of CO2. The sorption process analysis (including adsorption/desorption isotherms behavior) shows indication that the rate-limiting step of CO2 adsorption onto activated carbon is probably governed by diffusion-controlled process, especially at temperatures below 850°C.",
publisher = "SAGE Publications",
journal = "Energy & Environment",
title = "Characterization analysis of activated carbon derived from the carbonization process of plane tree (Platanus orientalis) seeds",
volume = "31",
number = "4",
pages = "583-612",
doi = "10.1177/0958305X19880878"
}

Dodevski, V., Janković, B., Radović, I., Stojmenović, M., Čebela, M., Nikolić, Ž., Pagnacco, M., Panić, I.,& Stanković, M.. (2020). Characterization analysis of activated carbon derived from the carbonization process of plane tree (Platanus orientalis) seeds. in Energy & Environment
SAGE Publications., 31(4), 583-612.
https://doi.org/10.1177/0958305X19880878

Dodevski V, Janković B, Radović I, Stojmenović M, Čebela M, Nikolić Ž, Pagnacco M, Panić I, Stanković M. Characterization analysis of activated carbon derived from the carbonization process of plane tree (Platanus orientalis) seeds. in Energy & Environment. 2020;31(4):583-612.
doi:10.1177/0958305X19880878 .

Dodevski, Vladimir, Janković, Bojan, Radović, Ivana, Stojmenović, Marija, Čebela, Maria, Nikolić, Željka, Pagnacco, Maja, Panić, Ivan, Stanković, Miroslav, "Characterization analysis of activated carbon derived from the carbonization process of plane tree (Platanus orientalis) seeds" in Energy & Environment, 31, no. 4 (2020):583-612,
https://doi.org/10.1177/0958305X19880878 . .

TY  - JOUR
AU  - Dodevski, Vladimir
AU  - Pagnacco, Maja
AU  - Radović, Ivana
AU  - Rosić, Milena
AU  - Janković, Bojan
AU  - Stojmenović, Marija
AU  - Mitić, Vojislav V.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3436
AB  - The aim of this research was to obtain a carbon solid residue by the carbonization process of biomass in an inert atmosphere which, through physical activation and chemical treatment (using TEOS - tetraethyl orthosilicate) would allow creation of highly porous and spatially distinct ordered bio-SiC ceramics. The results of carbonization experiments at several operating temperatures and activation of carbons with multiple-cycle treatments TEOS clearly showed the possibility of obtaining SiC nano-structures, after performing the carbothermal reduction at 1400 °C. The increase in the activation temperature and the duration time starts the development of the SiC particles inside the porous structure. The XRPD analysis showed that the major SiC polytype has cubic SiC (β-SiC) structure and remainder is hexagonal SiC polytypic (α-SiC) structure. It was established that the carbons obtained from carbonization of the Platanus orientalis L. plane tree fruit (PTF) precursor and activated at 850 °C with longer holding times (1 and 2 h) exhibit β-SiC (cubic) nano-wires. A possible nano-wires increment mechanism was suggested. The obtained results represent significant contribution in understanding the process as well as the main characteristics of SiC nano-materials and their possible applications.
PB  - Elsevier
T2  - Materials Chemistry and Physics
T1  - Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization
VL  - 245
SP  - 122768
DO  - 10.1016/j.matchemphys.2020.122768
ER  - 

@article{
author = "Dodevski, Vladimir and Pagnacco, Maja and Radović, Ivana and Rosić, Milena and Janković, Bojan and Stojmenović, Marija and Mitić, Vojislav V.",
year = "2020",
abstract = "The aim of this research was to obtain a carbon solid residue by the carbonization process of biomass in an inert atmosphere which, through physical activation and chemical treatment (using TEOS - tetraethyl orthosilicate) would allow creation of highly porous and spatially distinct ordered bio-SiC ceramics. The results of carbonization experiments at several operating temperatures and activation of carbons with multiple-cycle treatments TEOS clearly showed the possibility of obtaining SiC nano-structures, after performing the carbothermal reduction at 1400 °C. The increase in the activation temperature and the duration time starts the development of the SiC particles inside the porous structure. The XRPD analysis showed that the major SiC polytype has cubic SiC (β-SiC) structure and remainder is hexagonal SiC polytypic (α-SiC) structure. It was established that the carbons obtained from carbonization of the Platanus orientalis L. plane tree fruit (PTF) precursor and activated at 850 °C with longer holding times (1 and 2 h) exhibit β-SiC (cubic) nano-wires. A possible nano-wires increment mechanism was suggested. The obtained results represent significant contribution in understanding the process as well as the main characteristics of SiC nano-materials and their possible applications.",
publisher = "Elsevier",
journal = "Materials Chemistry and Physics",
title = "Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization",
volume = "245",
pages = "122768",
doi = "10.1016/j.matchemphys.2020.122768"
}

Dodevski, V., Pagnacco, M., Radović, I., Rosić, M., Janković, B., Stojmenović, M.,& Mitić, V. V.. (2020). Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization. in Materials Chemistry and Physics
Elsevier., 245, 122768.
https://doi.org/10.1016/j.matchemphys.2020.122768

Dodevski V, Pagnacco M, Radović I, Rosić M, Janković B, Stojmenović M, Mitić VV. Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization. in Materials Chemistry and Physics. 2020;245:122768.
doi:10.1016/j.matchemphys.2020.122768 .

Dodevski, Vladimir, Pagnacco, Maja, Radović, Ivana, Rosić, Milena, Janković, Bojan, Stojmenović, Marija, Mitić, Vojislav V., "Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization" in Materials Chemistry and Physics, 245 (2020):122768,
https://doi.org/10.1016/j.matchemphys.2020.122768 . .

TY  - JOUR
AU  - Radotić, Ksenija
AU  - Djikanović, Daniela
AU  - Simonović Radosavljević, Jasna
AU  - Jović-Jovičić, Nataša
AU  - Mojović, Zorica
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3447
AB  - Cellulose, xylan and lignin, as well as maize cell wall, were used as modifiers of carbon paste electrode. Comparative analysis of electrochemical performance of each modifier toward heavy metal detection was performed. A higher affinity of biomass constituents for lead ions than for copper ions influenced simultaneous detection of lead and copper ions. The new procedure for the simultaneous detection of lead and copper ions based on their co-adsorption was presented.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions
VL  - 862
SP  - 114010
EP  - M21~
DO  - 10.1016/j.jelechem.2020.114010
ER  - 

@article{
author = "Radotić, Ksenija and Djikanović, Daniela and Simonović Radosavljević, Jasna and Jović-Jovičić, Nataša and Mojović, Zorica",
year = "2020",
abstract = "Cellulose, xylan and lignin, as well as maize cell wall, were used as modifiers of carbon paste electrode. Comparative analysis of electrochemical performance of each modifier toward heavy metal detection was performed. A higher affinity of biomass constituents for lead ions than for copper ions influenced simultaneous detection of lead and copper ions. The new procedure for the simultaneous detection of lead and copper ions based on their co-adsorption was presented.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions",
volume = "862",
pages = "114010-M21~",
doi = "10.1016/j.jelechem.2020.114010"
}

Radotić, K., Djikanović, D., Simonović Radosavljević, J., Jović-Jovičić, N.,& Mojović, Z.. (2020). Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions. in Journal of Electroanalytical Chemistry
Elsevier., 862, 114010-M21~.
https://doi.org/10.1016/j.jelechem.2020.114010

Radotić K, Djikanović D, Simonović Radosavljević J, Jović-Jovičić N, Mojović Z. Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions. in Journal of Electroanalytical Chemistry. 2020;862:114010-M21~.
doi:10.1016/j.jelechem.2020.114010 .

Radotić, Ksenija, Djikanović, Daniela, Simonović Radosavljević, Jasna, Jović-Jovičić, Nataša, Mojović, Zorica, "Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions" in Journal of Electroanalytical Chemistry, 862 (2020):114010-M21~,
https://doi.org/10.1016/j.jelechem.2020.114010 . .

TY  - JOUR
AU  - Radotić, Ksenija
AU  - Djikanović, Daniela
AU  - Simonović Radosavljević, Jasna
AU  - Jović-Jovičić, Nataša
AU  - Mojović, Zorica
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3448
AB  - Cellulose, xylan and lignin, as well as maize cell wall, were used as modifiers of carbon paste electrode. Comparative analysis of electrochemical performance of each modifier toward heavy metal detection was performed. A higher affinity of biomass constituents for lead ions than for copper ions influenced simultaneous detection of lead and copper ions. The new procedure for the simultaneous detection of lead and copper ions based on their co-adsorption was presented.
PB  - Elsevier
T2  - Journal of Electroanalytical Chemistry
T1  - Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions
VL  - 862
SP  - 114010
DO  - 10.1016/j.jelechem.2020.114010
ER  - 

@article{
author = "Radotić, Ksenija and Djikanović, Daniela and Simonović Radosavljević, Jasna and Jović-Jovičić, Nataša and Mojović, Zorica",
year = "2020",
abstract = "Cellulose, xylan and lignin, as well as maize cell wall, were used as modifiers of carbon paste electrode. Comparative analysis of electrochemical performance of each modifier toward heavy metal detection was performed. A higher affinity of biomass constituents for lead ions than for copper ions influenced simultaneous detection of lead and copper ions. The new procedure for the simultaneous detection of lead and copper ions based on their co-adsorption was presented.",
publisher = "Elsevier",
journal = "Journal of Electroanalytical Chemistry",
title = "Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions",
volume = "862",
pages = "114010",
doi = "10.1016/j.jelechem.2020.114010"
}

Radotić, K., Djikanović, D., Simonović Radosavljević, J., Jović-Jovičić, N.,& Mojović, Z.. (2020). Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions. in Journal of Electroanalytical Chemistry
Elsevier., 862, 114010.
https://doi.org/10.1016/j.jelechem.2020.114010

Radotić K, Djikanović D, Simonović Radosavljević J, Jović-Jovičić N, Mojović Z. Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions. in Journal of Electroanalytical Chemistry. 2020;862:114010.
doi:10.1016/j.jelechem.2020.114010 .

Radotić, Ksenija, Djikanović, Daniela, Simonović Radosavljević, Jasna, Jović-Jovičić, Nataša, Mojović, Zorica, "Comparative study of lignocellulosic biomass and its components as electrode modifiers for detection of lead and copper ions" in Journal of Electroanalytical Chemistry, 862 (2020):114010,
https://doi.org/10.1016/j.jelechem.2020.114010 . .

TY  - CHAP
AU  - Hadnadjev-Kostić, Milica
AU  - Vulic, Tatjana
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3752
AB  - The chapter aims to provide a general overview of current thinking and research results regarding the development of visible light responsive metal oxide–based catalysts with enhanced photocatalytic activities, especially outlining their chemical and physical properties, as well as the critical importance of photocatalyst preparation procedure. This chapter will summarize published research literature and their key interpretations, concerning complex interactions that occur during the photocatalyst preparation taking into consideration synthesis methodology, composition, as well as functional properties. Additionally, numerous applications of metal oxide photocatalysts are discussed, especially emphasizing wastewater treatment and clean energy production, highlighting the correlation between their efficiency and recent modifications applied to metal oxides.
PB  - Elsevier
T2  - Handbook of Smart Photocatalytic Materials - Fundamentals, Fabrications, and Water Resources Applications
T1  - Design and application of various visible light responsive metal oxide photocatalysts
SP  - 65
EP  - 99
DO  - 10.1016/B978-0-12-819051-7.00003-8
ER  - 

@inbook{
author = "Hadnadjev-Kostić, Milica and Vulic, Tatjana and Dostanić, Jasmina and Lončarević, Davor",
year = "2020",
abstract = "The chapter aims to provide a general overview of current thinking and research results regarding the development of visible light responsive metal oxide–based catalysts with enhanced photocatalytic activities, especially outlining their chemical and physical properties, as well as the critical importance of photocatalyst preparation procedure. This chapter will summarize published research literature and their key interpretations, concerning complex interactions that occur during the photocatalyst preparation taking into consideration synthesis methodology, composition, as well as functional properties. Additionally, numerous applications of metal oxide photocatalysts are discussed, especially emphasizing wastewater treatment and clean energy production, highlighting the correlation between their efficiency and recent modifications applied to metal oxides.",
publisher = "Elsevier",
journal = "Handbook of Smart Photocatalytic Materials - Fundamentals, Fabrications, and Water Resources Applications",
booktitle = "Design and application of various visible light responsive metal oxide photocatalysts",
pages = "65-99",
doi = "10.1016/B978-0-12-819051-7.00003-8"
}

Hadnadjev-Kostić, M., Vulic, T., Dostanić, J.,& Lončarević, D.. (2020). Design and application of various visible light responsive metal oxide photocatalysts. in Handbook of Smart Photocatalytic Materials - Fundamentals, Fabrications, and Water Resources Applications
Elsevier., 65-99.
https://doi.org/10.1016/B978-0-12-819051-7.00003-8

Hadnadjev-Kostić M, Vulic T, Dostanić J, Lončarević D. Design and application of various visible light responsive metal oxide photocatalysts. in Handbook of Smart Photocatalytic Materials - Fundamentals, Fabrications, and Water Resources Applications. 2020;:65-99.
doi:10.1016/B978-0-12-819051-7.00003-8 .

Hadnadjev-Kostić, Milica, Vulic, Tatjana, Dostanić, Jasmina, Lončarević, Davor, "Design and application of various visible light responsive metal oxide photocatalysts" in Handbook of Smart Photocatalytic Materials - Fundamentals, Fabrications, and Water Resources Applications (2020):65-99,
https://doi.org/10.1016/B978-0-12-819051-7.00003-8 . .

TY  - CONF
AU  - Čupić, Željko
AU  - Maćešić, Stevan
AU  - Kolar-Anić, Ljiljana
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3746
UR  - http://imqf.ekof.bg.ac.rs/ConfNonlin/index.html
AB  - Stability analysis of reaction systems is described by the application of the Stoichiometric Network Analysis to the three-variable-autocatalator. Although simple, this model is complex enough to describe complex forms of nonlinear dynamics phenomena, like mixed-mode oscillations and chaos. Therefore, stability analysis of such model is not a trivial task. Using the Stoichiometric Network Analysis for this purpose makes the process clear and leads to the reliable result.
The method is described briefly in few general steps and all of them are further clarified through the application to the chosen example. First, the reaction rates in steady state are decomposed to contributions of independent pathways, called extreme currents. Then, linearized operator is constructed. Finally, through the analysis of the principal minors of the essential part of this operator, simple stability criterion is identified.
PB  - Serbian academy of nonlinear sciences
C3  - Proceedings - 1st Conference on nonlinearity
T1  - Instability region in models of nonlinear reaction systems. The Stoichiometric Network Analysis
SP  - 145
EP  - 159
UR  - https://hdl.handle.net/21.15107/rcub_cer_3746
ER  - 

@conference{
author = "Čupić, Željko and Maćešić, Stevan and Kolar-Anić, Ljiljana",
year = "2020",
abstract = "Stability analysis of reaction systems is described by the application of the Stoichiometric Network Analysis to the three-variable-autocatalator. Although simple, this model is complex enough to describe complex forms of nonlinear dynamics phenomena, like mixed-mode oscillations and chaos. Therefore, stability analysis of such model is not a trivial task. Using the Stoichiometric Network Analysis for this purpose makes the process clear and leads to the reliable result.
The method is described briefly in few general steps and all of them are further clarified through the application to the chosen example. First, the reaction rates in steady state are decomposed to contributions of independent pathways, called extreme currents. Then, linearized operator is constructed. Finally, through the analysis of the principal minors of the essential part of this operator, simple stability criterion is identified.",
publisher = "Serbian academy of nonlinear sciences",
journal = "Proceedings - 1st Conference on nonlinearity",
title = "Instability region in models of nonlinear reaction systems. The Stoichiometric Network Analysis",
pages = "145-159",
url = "https://hdl.handle.net/21.15107/rcub_cer_3746"
}

Čupić, Ž., Maćešić, S.,& Kolar-Anić, L.. (2020). Instability region in models of nonlinear reaction systems. The Stoichiometric Network Analysis. in Proceedings - 1st Conference on nonlinearity
Serbian academy of nonlinear sciences., 145-159.
https://hdl.handle.net/21.15107/rcub_cer_3746

Čupić Ž, Maćešić S, Kolar-Anić L. Instability region in models of nonlinear reaction systems. The Stoichiometric Network Analysis. in Proceedings - 1st Conference on nonlinearity. 2020;:145-159.
https://hdl.handle.net/21.15107/rcub_cer_3746 .

Čupić, Željko, Maćešić, Stevan, Kolar-Anić, Ljiljana, "Instability region in models of nonlinear reaction systems. The Stoichiometric Network Analysis" in Proceedings - 1st Conference on nonlinearity (2020):145-159,
https://hdl.handle.net/21.15107/rcub_cer_3746 .

TY  - JOUR
AU  - Ajduković, Marija
AU  - Stojadinović, Stevan
AU  - Marinović, Sanja
AU  - Milutinović Nikolić, Aleksandra
AU  - Dojčinović, Biljana
AU  - Banković, Predrag
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3223
AB  - The aim of this work is to examine the possibility of the formation of cobalt doped Al2O3 coatings on aluminum substrate by plasma electrolytic oxidation process (PEO) and application of the obtained material as catalyst in the sulfate radical (SO4−) based advanced oxidation process (SR-AOP). The morphology and elemental composition, of the coatings were characterized using Scanning Electron Microscopy. The obtained material was tested as catalyst in SR-AOP in the degradation of model dye (tartrazine) in aqueous solution. Potassium peroxymonosulfate (Oxone®) was used as the source of radicals. The catalytic role of cobalt in tartrazine decolorization was tested in the catalytic system consisting of PEO cobalt doped Al2O3 coated Al plates and Oxone®. It was found that the addition of cobalt precursor into PEO electrolyte solution significantly improved the catalytic properties of obtained coatings with respect to cobalt-free Al2O3 coating and Oxone®. The influence of cobalt content in the supporting electrolyte during PEO process on the catalytic activity of the coatings, as well as Oxone® dosages in SR-AOP, were examined.
PB  - Elsevier
T2  - Applied Surface Science
T1  - Activation of Oxone® with plasma deposited mixed cobalt and alumina oxide for the dye degradation
VL  - 503
SP  - 144144
DO  - 10.1016/j.apsusc.2019.144144
ER  - 

@article{
author = "Ajduković, Marija and Stojadinović, Stevan and Marinović, Sanja and Milutinović Nikolić, Aleksandra and Dojčinović, Biljana and Banković, Predrag",
year = "2020",
abstract = "The aim of this work is to examine the possibility of the formation of cobalt doped Al2O3 coatings on aluminum substrate by plasma electrolytic oxidation process (PEO) and application of the obtained material as catalyst in the sulfate radical (SO4−) based advanced oxidation process (SR-AOP). The morphology and elemental composition, of the coatings were characterized using Scanning Electron Microscopy. The obtained material was tested as catalyst in SR-AOP in the degradation of model dye (tartrazine) in aqueous solution. Potassium peroxymonosulfate (Oxone®) was used as the source of radicals. The catalytic role of cobalt in tartrazine decolorization was tested in the catalytic system consisting of PEO cobalt doped Al2O3 coated Al plates and Oxone®. It was found that the addition of cobalt precursor into PEO electrolyte solution significantly improved the catalytic properties of obtained coatings with respect to cobalt-free Al2O3 coating and Oxone®. The influence of cobalt content in the supporting electrolyte during PEO process on the catalytic activity of the coatings, as well as Oxone® dosages in SR-AOP, were examined.",
publisher = "Elsevier",
journal = "Applied Surface Science",
title = "Activation of Oxone® with plasma deposited mixed cobalt and alumina oxide for the dye degradation",
volume = "503",
pages = "144144",
doi = "10.1016/j.apsusc.2019.144144"
}

Ajduković, M., Stojadinović, S., Marinović, S., Milutinović Nikolić, A., Dojčinović, B.,& Banković, P.. (2020). Activation of Oxone® with plasma deposited mixed cobalt and alumina oxide for the dye degradation. in Applied Surface Science
Elsevier., 503, 144144.
https://doi.org/10.1016/j.apsusc.2019.144144

Ajduković M, Stojadinović S, Marinović S, Milutinović Nikolić A, Dojčinović B, Banković P. Activation of Oxone® with plasma deposited mixed cobalt and alumina oxide for the dye degradation. in Applied Surface Science. 2020;503:144144.
doi:10.1016/j.apsusc.2019.144144 .

Ajduković, Marija, Stojadinović, Stevan, Marinović, Sanja, Milutinović Nikolić, Aleksandra, Dojčinović, Biljana, Banković, Predrag, "Activation of Oxone® with plasma deposited mixed cobalt and alumina oxide for the dye degradation" in Applied Surface Science, 503 (2020):144144,
https://doi.org/10.1016/j.apsusc.2019.144144 . .

TY  - JOUR
AU  - Ilić, Irena
AU  - Milutinović Nikolić, Aleksandra
AU  - Mojović, Zorica
AU  - Vuković, Zorica
AU  - Vulić, Predrag
AU  - Gržetić, Ivan
AU  - Banković, Predrag
AU  - Jović-Jovičić, Nataša
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3605
AB  - The goal of this work was the synthesis of a montmorillonite based catalyst for advanced oxidative degradation of organic water pollutants. Montmorillonite (Mt) –rich bentonite was acid-activated (MtA), and impregnated with cobalt (II) solution using the incipient wetness impregnation method. The impregnation was followed by heat treatment. Cobalt(II) ions were added in the quantities corresponding to 0.5 and 1.0 of the cation exchange capacity value. All samples were characterized by using chemical analysis, X-ray powder diffraction (XRPD), Electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM) coupled with Energy-dispersive X-ray spectroscopy (EDS), Transmission electron microscopy (TEM) and
low temperature N2 physisorption. The incorporation of the cobalt in the impregnated samples and the development of porous structure in the acid-activated ones were confirmed. The montmorillonite (Mt) was used as a catalyst support, while the cobalt in its oxide form was responsible for the generation of sulfo-radicals from Oxone®. Two aromatic N-compounds were tested as model pollutants: diazo dye - Acid Orange 10 (AO10) and nicotine. It was found that the synthesized catalysts could be used for the degradation of both pollutants, although more efficiently in AO10 degradation. The acid activation, higher cobalt loading, and temperature were found to be beneficial for the degradation of AO10.
PB  - Elsevier
T2  - Applied Clay Science
T1  - Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts
VL  - 193
IS  - 105668
DO  - 10.1016/j.clay.2020.105668
ER  - 

@article{
author = "Ilić, Irena and Milutinović Nikolić, Aleksandra and Mojović, Zorica and Vuković, Zorica and Vulić, Predrag and Gržetić, Ivan and Banković, Predrag and Jović-Jovičić, Nataša",
year = "2020",
abstract = "The goal of this work was the synthesis of a montmorillonite based catalyst for advanced oxidative degradation of organic water pollutants. Montmorillonite (Mt) –rich bentonite was acid-activated (MtA), and impregnated with cobalt (II) solution using the incipient wetness impregnation method. The impregnation was followed by heat treatment. Cobalt(II) ions were added in the quantities corresponding to 0.5 and 1.0 of the cation exchange capacity value. All samples were characterized by using chemical analysis, X-ray powder diffraction (XRPD), Electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM) coupled with Energy-dispersive X-ray spectroscopy (EDS), Transmission electron microscopy (TEM) and
low temperature N2 physisorption. The incorporation of the cobalt in the impregnated samples and the development of porous structure in the acid-activated ones were confirmed. The montmorillonite (Mt) was used as a catalyst support, while the cobalt in its oxide form was responsible for the generation of sulfo-radicals from Oxone®. Two aromatic N-compounds were tested as model pollutants: diazo dye - Acid Orange 10 (AO10) and nicotine. It was found that the synthesized catalysts could be used for the degradation of both pollutants, although more efficiently in AO10 degradation. The acid activation, higher cobalt loading, and temperature were found to be beneficial for the degradation of AO10.",
publisher = "Elsevier",
journal = "Applied Clay Science",
title = "Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts",
volume = "193",
number = "105668",
doi = "10.1016/j.clay.2020.105668"
}

Ilić, I., Milutinović Nikolić, A., Mojović, Z., Vuković, Z., Vulić, P., Gržetić, I., Banković, P.,& Jović-Jovičić, N.. (2020). Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts. in Applied Clay Science
Elsevier., 193(105668).
https://doi.org/10.1016/j.clay.2020.105668

Ilić I, Milutinović Nikolić A, Mojović Z, Vuković Z, Vulić P, Gržetić I, Banković P, Jović-Jovičić N. Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts. in Applied Clay Science. 2020;193(105668).
doi:10.1016/j.clay.2020.105668 .

Ilić, Irena, Milutinović Nikolić, Aleksandra, Mojović, Zorica, Vuković, Zorica, Vulić, Predrag, Gržetić, Ivan, Banković, Predrag, Jović-Jovičić, Nataša, "Oxidative degradation of aromatic N-compounds using cobalt containing montmorillonite-based catalysts" in Applied Clay Science, 193, no. 105668 (2020),
https://doi.org/10.1016/j.clay.2020.105668 . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Labus, Nebojša
AU  - Luković, Miloljub
AU  - Dojčinović, Milena P.
AU  - Radovanović, Milan
AU  - Tadić, Nenad
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3573
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite,
−
Ia3) crystal structure was obtained by a solid state
reaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitated
PdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) was
determined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable pore
system. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of the
thick film compared to powder. Impedance response of the thick film sensor was monitored in a humidity
chamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from
42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysis
of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. The
sensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% was
obtained.
PB  - Elsevier
T2  - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
VL  - 257
SP  - 114547
DO  - 10.1016/j.mseb.2020.114547
ER  - 

@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav and Labus, Nebojša and Luković, Miloljub and Dojčinović, Milena P. and Radovanović, Milan and Tadić, Nenad",
year = "2020",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite,
−
Ia3) crystal structure was obtained by a solid state
reaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitated
PdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) was
determined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable pore
system. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of the
thick film compared to powder. Impedance response of the thick film sensor was monitored in a humidity
chamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from
42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysis
of complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. The
sensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% was
obtained.",
publisher = "Elsevier",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
volume = "257",
pages = "114547",
doi = "10.1016/j.mseb.2020.114547"
}

Nikolić, M. V., Krstić, J., Labus, N., Luković, M., Dojčinović, M. P., Radovanović, M.,& Tadić, N.. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Elsevier., 257, 114547.
https://doi.org/10.1016/j.mseb.2020.114547

Nikolić MV, Krstić J, Labus N, Luković M, Dojčinović MP, Radovanović M, Tadić N. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. in Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2020;257:114547.
doi:10.1016/j.mseb.2020.114547 .

Nikolić, Maria Vesna, Krstić, Jugoslav, Labus, Nebojša, Luković, Miloljub, Dojčinović, Milena P., Radovanović, Milan, Tadić, Nenad, "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" in Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 257 (2020):114547,
https://doi.org/10.1016/j.mseb.2020.114547 . .

TY  - JOUR
AU  - Banić, Nemanja
AU  - Krstić, Jugoslav
AU  - Stojadinović, Stevan
AU  - Brnović, Anđela
AU  - Đorđević, Aleksandar
AU  - Abramović, Biljana F.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3640
AB  - Five NiO/TiO2 materials with a different mass ratiо оf NiO tо TiO2 (3.3, 6.7, 16.3, 23.7, and 36.8%) were synthesized by wet impregnation process and characterized by DR UV-vis, scanning electrоn micrоscоpe, transmissiоn electrоn micrоscоpy, X-ray diffractiоn methоd, N2 physisorption, and temperature-programmed reduction. The characterizatiоn confirmed the existence of nano-sized cubic NiO on the commercial TiО2. The оbserved interactiоn between TiO2 and NiО phases confirmed that the оbtained material dоes nоt constitute a physical mixture оf twо species. The photocatalytic hydrоgen generatiоn efficiency [mоnitored by gas chromatography–thermal conductivity detector (GC-TCD)] of these materials from methanol-water mixtures under simulated solar radiation and artificial UV radiation was investigated. For some synthesized NiO/TiO2 materials, higher photocatalytic efficiency was found compared with the commercial TiO2 Degussa P25 catalyst. Also, the obtained results showed that 0.125 g L−1 of 6.7%NiO/TiO2 and 5% (v/v) of methanol were the optimal operating parameters. Furthermоre, fоr the mоst efficient phоtоcatalytic system under the influence оf simulated solar radiation, a 1.8 times higher hydrоgen prоduction rate was achieved cоmpared tо that under the influence оf artificial UV radiatiоn.
PB  - John Wiley and Sons Inc
T2  - International Journal of Energy Research
T1  - Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation
VL  - 44
IS  - 11
SP  - 8951
EP  - 8963
DO  - 10.1002/er.5604
ER  - 

@article{
author = "Banić, Nemanja and Krstić, Jugoslav and Stojadinović, Stevan and Brnović, Anđela and Đorđević, Aleksandar and Abramović, Biljana F.",
year = "2020",
abstract = "Five NiO/TiO2 materials with a different mass ratiо оf NiO tо TiO2 (3.3, 6.7, 16.3, 23.7, and 36.8%) were synthesized by wet impregnation process and characterized by DR UV-vis, scanning electrоn micrоscоpe, transmissiоn electrоn micrоscоpy, X-ray diffractiоn methоd, N2 physisorption, and temperature-programmed reduction. The characterizatiоn confirmed the existence of nano-sized cubic NiO on the commercial TiО2. The оbserved interactiоn between TiO2 and NiО phases confirmed that the оbtained material dоes nоt constitute a physical mixture оf twо species. The photocatalytic hydrоgen generatiоn efficiency [mоnitored by gas chromatography–thermal conductivity detector (GC-TCD)] of these materials from methanol-water mixtures under simulated solar radiation and artificial UV radiation was investigated. For some synthesized NiO/TiO2 materials, higher photocatalytic efficiency was found compared with the commercial TiO2 Degussa P25 catalyst. Also, the obtained results showed that 0.125 g L−1 of 6.7%NiO/TiO2 and 5% (v/v) of methanol were the optimal operating parameters. Furthermоre, fоr the mоst efficient phоtоcatalytic system under the influence оf simulated solar radiation, a 1.8 times higher hydrоgen prоduction rate was achieved cоmpared tо that under the influence оf artificial UV radiatiоn.",
publisher = "John Wiley and Sons Inc",
journal = "International Journal of Energy Research",
title = "Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation",
volume = "44",
number = "11",
pages = "8951-8963",
doi = "10.1002/er.5604"
}

Banić, N., Krstić, J., Stojadinović, S., Brnović, A., Đorđević, A.,& Abramović, B. F.. (2020). Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation. in International Journal of Energy Research
John Wiley and Sons Inc., 44(11), 8951-8963.
https://doi.org/10.1002/er.5604

Banić N, Krstić J, Stojadinović S, Brnović A, Đorđević A, Abramović BF. Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation. in International Journal of Energy Research. 2020;44(11):8951-8963.
doi:10.1002/er.5604 .

Banić, Nemanja, Krstić, Jugoslav, Stojadinović, Stevan, Brnović, Anđela, Đorđević, Aleksandar, Abramović, Biljana F., "Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation" in International Journal of Energy Research, 44, no. 11 (2020):8951-8963,
https://doi.org/10.1002/er.5604 . .