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Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200175 (Institute of Technical Sciences of SASA, Belgrade)

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Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200175 (Institute of Technical Sciences of SASA, Belgrade) (en)
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, Ugovor br. 451-03-68/2020-14/200175 (Institut tehničkih nauka SANU, Beograd) (sr_RS)
Министарство просвете, науке и технолошког развоја Републике Србије, Уговор бр. 451-03-68/2020-14/200175 (Институт техничких наука САНУ, Београд) (sr)

Publications

Argon/dust and pure argon pulsed plasmas explored using a spatially-averaged model

Denysenko, I. B.; Stefanović, Ilija; Mikikian, M.; Kovačević, E.; Berndt, J.

(IOP Publishing, 2021)

TY  - JOUR
AU  - Denysenko, I. B.
AU  - Stefanović, Ilija
AU  - Mikikian, M.
AU  - Kovačević, E.
AU  - Berndt, J.
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/9988
AB  - The properties (densities of electrons and metastable argon atoms, effective electron temperature and dust charge) of argon/dust and pure argon pulsed plasmas are studied using a spatially-averaged model. The calculated time-dependencies for the densities of electrons and metastable atoms are compared with the experimental measurements and are found to be in a good qualitative agreement. It is analyzed how the plasma properties depend on the shape of the electron energy probability function (EEPF), the pulsing frequency and the duty cycle for both dust-free and dusty plasma. The analysis reveals that the agreement between theory and experiment is better with Druyvesteyn EEPF than the Maxwellian EEPF. Further, the variation in the pulsing frequency νp differently affects the metastable density nm in a dust-free and in a dusty plasma. For large νp, the metastable density in the dust-free pulsed plasma is larger than in the continuous-wave (CW) discharge, while the opposite is obtained in the presence of dust particles. This difference probably arises because of faster variation in the effective electron temperature in the dusty plasma due to collection of electrons by dust particles. Our calculations also show that dust particles may affect the behavior of electron density in the beginning of the on-period due to an enhancement in electron collection by dust particles.
PB  - IOP Publishing
T2  - Journal of Physics D: Applied Physics
T1  - Argon/dust and pure argon pulsed plasmas explored using a spatially-averaged model
SP  - 065202
VL  - 54
IS  - 6
DO  - 10.1088/1361-6463/abc210
ER  - 
@article{
author = "Denysenko, I. B. and Stefanović, Ilija and Mikikian, M. and Kovačević, E. and Berndt, J.",
year = "2021",
url = "https://dais.sanu.ac.rs/123456789/9988",
abstract = "The properties (densities of electrons and metastable argon atoms, effective electron temperature and dust charge) of argon/dust and pure argon pulsed plasmas are studied using a spatially-averaged model. The calculated time-dependencies for the densities of electrons and metastable atoms are compared with the experimental measurements and are found to be in a good qualitative agreement. It is analyzed how the plasma properties depend on the shape of the electron energy probability function (EEPF), the pulsing frequency and the duty cycle for both dust-free and dusty plasma. The analysis reveals that the agreement between theory and experiment is better with Druyvesteyn EEPF than the Maxwellian EEPF. Further, the variation in the pulsing frequency νp differently affects the metastable density nm in a dust-free and in a dusty plasma. For large νp, the metastable density in the dust-free pulsed plasma is larger than in the continuous-wave (CW) discharge, while the opposite is obtained in the presence of dust particles. This difference probably arises because of faster variation in the effective electron temperature in the dusty plasma due to collection of electrons by dust particles. Our calculations also show that dust particles may affect the behavior of electron density in the beginning of the on-period due to an enhancement in electron collection by dust particles.",
publisher = "IOP Publishing",
journal = "Journal of Physics D: Applied Physics",
title = "Argon/dust and pure argon pulsed plasmas explored using a spatially-averaged model",
pages = "065202",
volume = "54",
number = "6",
doi = "10.1088/1361-6463/abc210"
}
Denysenko, I. B., Stefanović, I., Mikikian, M., Kovačević, E.,& Berndt, J. (2021). Argon/dust and pure argon pulsed plasmas explored using a spatially-averaged model.
Journal of Physics D: Applied PhysicsIOP Publishing., 54(6), 065202.
https://doi.org/10.1088/1361-6463/abc210
Denysenko IB, Stefanović I, Mikikian M, Kovačević E, Berndt J. Argon/dust and pure argon pulsed plasmas explored using a spatially-averaged model. Journal of Physics D: Applied Physics. 2021;54(6):065202
Denysenko I. B., Stefanović Ilija, Mikikian M., Kovačević E., Berndt J., "Argon/dust and pure argon pulsed plasmas explored using a spatially-averaged model" 54, no. 6 (2021):065202,
https://doi.org/10.1088/1361-6463/abc210 .

Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy

Mitrašinović, Aleksandar M.; Odanović, Zoran

(Elsevier BV, 2021)

TY  - JOUR
AU  - Mitrašinović, Aleksandar M.
AU  - Odanović, Zoran
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/10002
AB  - Treatment of liquid aluminum alloys in low vacuum conditions is often applied for parts production in the automotive and aerospace industry because of its effectiveness in removing dissolved gases. Because of the low vapour pressure of aluminum, concentrations of the most unwanted elements can be significantly reduced at lower pressures. Presented work analyzing kinetics parameters for elemental evaporation from liquid Al7Si4Cu alloy. The pressure inside mullite refractory material was below 2.1 kPa for melt temperatures between 760 and 910 °C. The alloy’s chemical composition was characterized by the Inductively Coupled Plasma Mass Spectrometry method. Lead, Zinc, and Mercury were reduced at the highest rate while the lowest evaporation occurred for key alloying elements such as Silicon and Copper. Higher evaporation rates were achieved at higher temperatures. The evaporation ratios, volatility coefficients, reaction rate constants, mass transfer coefficients, and elemental evaporation susceptibility on temperature increase were deduced for 16 elements. The obtained results confirmed that keeping molten aluminum alloys in low vacuum conditions for one hour is an efficient method in removing unwanted elements with great potential for further improvement in industrial conditions.
PB  - Elsevier BV
T2  - Thermochimica Acta
T1  - Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy
SP  - 178816
VL  - 695
DO  - 10.1016/j.tca.2020.178816
ER  - 
@article{
author = "Mitrašinović, Aleksandar M. and Odanović, Zoran",
year = "2021",
url = "https://dais.sanu.ac.rs/123456789/10002",
abstract = "Treatment of liquid aluminum alloys in low vacuum conditions is often applied for parts production in the automotive and aerospace industry because of its effectiveness in removing dissolved gases. Because of the low vapour pressure of aluminum, concentrations of the most unwanted elements can be significantly reduced at lower pressures. Presented work analyzing kinetics parameters for elemental evaporation from liquid Al7Si4Cu alloy. The pressure inside mullite refractory material was below 2.1 kPa for melt temperatures between 760 and 910 °C. The alloy’s chemical composition was characterized by the Inductively Coupled Plasma Mass Spectrometry method. Lead, Zinc, and Mercury were reduced at the highest rate while the lowest evaporation occurred for key alloying elements such as Silicon and Copper. Higher evaporation rates were achieved at higher temperatures. The evaporation ratios, volatility coefficients, reaction rate constants, mass transfer coefficients, and elemental evaporation susceptibility on temperature increase were deduced for 16 elements. The obtained results confirmed that keeping molten aluminum alloys in low vacuum conditions for one hour is an efficient method in removing unwanted elements with great potential for further improvement in industrial conditions.",
publisher = "Elsevier BV",
journal = "Thermochimica Acta",
title = "Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy",
pages = "178816",
volume = "695",
doi = "10.1016/j.tca.2020.178816"
}
Mitrašinović, A. M.,& Odanović, Z. (2021). Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy.
Thermochimica ActaElsevier BV., 695, 178816.
https://doi.org/10.1016/j.tca.2020.178816
Mitrašinović AM, Odanović Z. Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy. Thermochimica Acta. 2021;695:178816
Mitrašinović Aleksandar M., Odanović Zoran, "Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy" 695 (2021):178816,
https://doi.org/10.1016/j.tca.2020.178816 .

Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy

Mitrašinović, Aleksandar M.; Odanović, Zoran

(Elsevier BV, 2021)

TY  - JOUR
AU  - Mitrašinović, Aleksandar M.
AU  - Odanović, Zoran
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/10001
AB  - Treatment of liquid aluminum alloys in low vacuum conditions is often applied for parts production in the automotive and aerospace industry because of its effectiveness in removing dissolved gases. Because of the low vapour pressure of aluminum, concentrations of the most unwanted elements can be significantly reduced at lower pressures. Presented work analyzing kinetics parameters for elemental evaporation from liquid Al7Si4Cu alloy. The pressure inside mullite refractory material was below 2.1 kPa for melt temperatures between 760 and 910 °C. The alloy’s chemical composition was characterized by the Inductively Coupled Plasma Mass Spectrometry method. Lead, Zinc, and Mercury were reduced at the highest rate while the lowest evaporation occurred for key alloying elements such as Silicon and Copper. Higher evaporation rates were achieved at higher temperatures. The evaporation ratios, volatility coefficients, reaction rate constants, mass transfer coefficients, and elemental evaporation susceptibility on temperature increase were deduced for 16 elements. The obtained results confirmed that keeping molten aluminum alloys in low vacuum conditions for one hour is an efficient method in removing unwanted elements with great potential for further improvement in industrial conditions.
PB  - Elsevier BV
T2  - Thermochimica Acta
T1  - Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy
SP  - 178816
VL  - 695
DO  - 10.1016/j.tca.2020.178816
ER  - 
@article{
author = "Mitrašinović, Aleksandar M. and Odanović, Zoran",
year = "2021",
url = "https://dais.sanu.ac.rs/123456789/10001",
abstract = "Treatment of liquid aluminum alloys in low vacuum conditions is often applied for parts production in the automotive and aerospace industry because of its effectiveness in removing dissolved gases. Because of the low vapour pressure of aluminum, concentrations of the most unwanted elements can be significantly reduced at lower pressures. Presented work analyzing kinetics parameters for elemental evaporation from liquid Al7Si4Cu alloy. The pressure inside mullite refractory material was below 2.1 kPa for melt temperatures between 760 and 910 °C. The alloy’s chemical composition was characterized by the Inductively Coupled Plasma Mass Spectrometry method. Lead, Zinc, and Mercury were reduced at the highest rate while the lowest evaporation occurred for key alloying elements such as Silicon and Copper. Higher evaporation rates were achieved at higher temperatures. The evaporation ratios, volatility coefficients, reaction rate constants, mass transfer coefficients, and elemental evaporation susceptibility on temperature increase were deduced for 16 elements. The obtained results confirmed that keeping molten aluminum alloys in low vacuum conditions for one hour is an efficient method in removing unwanted elements with great potential for further improvement in industrial conditions.",
publisher = "Elsevier BV",
journal = "Thermochimica Acta",
title = "Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy",
pages = "178816",
volume = "695",
doi = "10.1016/j.tca.2020.178816"
}
Mitrašinović, A. M.,& Odanović, Z. (2021). Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy.
Thermochimica ActaElsevier BV., 695, 178816.
https://doi.org/10.1016/j.tca.2020.178816
Mitrašinović AM, Odanović Z. Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy. Thermochimica Acta. 2021;695:178816
Mitrašinović Aleksandar M., Odanović Zoran, "Thermodynamic and kinetics investigation of elemental evaporation from molten Al7Si4Cu alloy" 695 (2021):178816,
https://doi.org/10.1016/j.tca.2020.178816 .

Electronic Supplementary Information associated with the paper: Ristovski (Trifunović), J., Žižak, Ž., Marković, S., Janković, N., Ignjatović, N., 2020. Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment. RSC Adv. 10, 41542–41550. https://doi.org/10.1039/D0RA08085C

Ristovski (Trifunović), Jovana; Žižak, Željko; Marković, Smilja; Janković, Nenad; Ignjatović, Nenad

(Royal Society of Chemistry, 2020)

TY  - BOOK
AU  - Ristovski (Trifunović), Jovana
AU  - Žižak, Željko
AU  - Marković, Smilja
AU  - Janković, Nenad
AU  - Ignjatović, Nenad
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/9815
PB  - Royal Society of Chemistry
T2  - RSC Advances
T1  - Electronic Supplementary Information associated with the paper: Ristovski (Trifunović), J., Žižak, Ž., Marković, S., Janković, N., Ignjatović, N., 2020. Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment. RSC Adv. 10, 41542–41550. https://doi.org/10.1039/D0RA08085C
VL  - 10
IS  - 68
ER  - 
@book{
author = "Ristovski (Trifunović), Jovana and Žižak, Željko and Marković, Smilja and Janković, Nenad and Ignjatović, Nenad",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/9815",
publisher = "Royal Society of Chemistry",
journal = "RSC Advances",
title = "Electronic Supplementary Information associated with the paper: Ristovski (Trifunović), J., Žižak, Ž., Marković, S., Janković, N., Ignjatović, N., 2020. Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment. RSC Adv. 10, 41542–41550. https://doi.org/10.1039/D0RA08085C",
volume = "10",
number = "68"
}
Ristovski (Trifunović), J., Žižak, Ž., Marković, S., Janković, N.,& Ignjatović, N. (2020). Electronic Supplementary Information associated with the paper: Ristovski (Trifunović), J., Žižak, Ž., Marković, S., Janković, N., Ignjatović, N., 2020. Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment. RSC Adv. 10, 41542–41550. https://doi.org/10.1039/D0RA08085C.
RSC AdvancesRoyal Society of Chemistry., 10(68).
Ristovski (Trifunović) J, Žižak Ž, Marković S, Janković N, Ignjatović N. Electronic Supplementary Information associated with the paper: Ristovski (Trifunović), J., Žižak, Ž., Marković, S., Janković, N., Ignjatović, N., 2020. Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment. RSC Adv. 10, 41542–41550. https://doi.org/10.1039/D0RA08085C. RSC Advances. 2020;10(68)
Ristovski (Trifunović) Jovana, Žižak Željko, Marković Smilja, Janković Nenad, Ignjatović Nenad, "Electronic Supplementary Information associated with the paper: Ristovski (Trifunović), J., Žižak, Ž., Marković, S., Janković, N., Ignjatović, N., 2020. Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment. RSC Adv. 10, 41542–41550. https://doi.org/10.1039/D0RA08085C" 10, no. 68 (2020)

Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment

Ristovski (Trifunović), Jovana; Žižak, Željko; Marković, Smilja; Janković, Nenad; Ignjatović, Nenad

(Royal Society of Chemistry, 2020)

TY  - JOUR
AU  - Ristovski (Trifunović), Jovana
AU  - Žižak, Željko
AU  - Marković, Smilja
AU  - Janković, Nenad
AU  - Ignjatović, Nenad
PY  - 2020
UR  - https://pubs.rsc.org/en/content/articlelanding/2020/ra/d0ra08085c
UR  - https://dais.sanu.ac.rs/123456789/9814
AB  - Tetrahydropyrimidines are a class of azaheterocycles, also called Biginelli hybrids (obtained from the Biginelli reaction), that have attracted an enormous interest in the medicinal chemistry community in recent years, due to a broad biological activity, such as anticancer, antiviral, anti-inflammatory, antidiabetic, antituberculosis activities, etc. According to SciFinder®, more than 70 000 different Biginelli-like compounds have been covered in publications. However, although the Biginelli reaction can yield a large number of compounds with a broad range of activities, none of them have been captured in a carrier. In this study, chitosan-based (Ch) nanoparticles (NPs) containing three different molecules (Biginelli hybrids) were developed and tested for the first time as simple and promising vehicles for anticancer Biginelli-based drugs. The key features of NPs, such as size, surface morphology, drug encapsulation efficiency, and in vitro release were systematically investigated. Rather weak cell selectivity of pure Biginelli hybrids (A–C) to selected cancer cell lines has improved and this has been accompanied with two-to-four times stronger cytotoxic effect of A–C loaded Ch NPs, with a triple reduction in toxicity to healthy cells (MRC-5). It has been observed that the examined NPs induce apoptosis. The cell cycle analysis has confirmed the influence of A-loaded Ch (A-Ch), B-loaded Ch (B-Ch), and C-loaded Ch (C-Ch) on the cell cycle distribution, which was homogenously affected. This is the difference with regard to the effect of A, B, and C on the cell cycle. It has been established that the increased selectivity and antitumor activity of NPs are related to the presence of the carrier.
PB  - Royal Society of Chemistry
T2  - RSC Advances
T1  - Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment
SP  - 41542
EP  - 41550
VL  - 10
IS  - 68
DO  - 10.1039/D0RA08085C
ER  - 
@article{
author = "Ristovski (Trifunović), Jovana and Žižak, Željko and Marković, Smilja and Janković, Nenad and Ignjatović, Nenad",
year = "2020",
url = "https://pubs.rsc.org/en/content/articlelanding/2020/ra/d0ra08085c, https://dais.sanu.ac.rs/123456789/9814",
abstract = "Tetrahydropyrimidines are a class of azaheterocycles, also called Biginelli hybrids (obtained from the Biginelli reaction), that have attracted an enormous interest in the medicinal chemistry community in recent years, due to a broad biological activity, such as anticancer, antiviral, anti-inflammatory, antidiabetic, antituberculosis activities, etc. According to SciFinder®, more than 70 000 different Biginelli-like compounds have been covered in publications. However, although the Biginelli reaction can yield a large number of compounds with a broad range of activities, none of them have been captured in a carrier. In this study, chitosan-based (Ch) nanoparticles (NPs) containing three different molecules (Biginelli hybrids) were developed and tested for the first time as simple and promising vehicles for anticancer Biginelli-based drugs. The key features of NPs, such as size, surface morphology, drug encapsulation efficiency, and in vitro release were systematically investigated. Rather weak cell selectivity of pure Biginelli hybrids (A–C) to selected cancer cell lines has improved and this has been accompanied with two-to-four times stronger cytotoxic effect of A–C loaded Ch NPs, with a triple reduction in toxicity to healthy cells (MRC-5). It has been observed that the examined NPs induce apoptosis. The cell cycle analysis has confirmed the influence of A-loaded Ch (A-Ch), B-loaded Ch (B-Ch), and C-loaded Ch (C-Ch) on the cell cycle distribution, which was homogenously affected. This is the difference with regard to the effect of A, B, and C on the cell cycle. It has been established that the increased selectivity and antitumor activity of NPs are related to the presence of the carrier.",
publisher = "Royal Society of Chemistry",
journal = "RSC Advances",
title = "Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment",
pages = "41542-41550",
volume = "10",
number = "68",
doi = "10.1039/D0RA08085C"
}
Ristovski (Trifunović), J., Žižak, Ž., Marković, S., Janković, N.,& Ignjatović, N. (2020). Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment.
RSC AdvancesRoyal Society of Chemistry., 10(68), 41542-41550.
https://doi.org/10.1039/D0RA08085C
Ristovski (Trifunović) J, Žižak Ž, Marković S, Janković N, Ignjatović N. Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment. RSC Advances. 2020;10(68):41542-41550
Ristovski (Trifunović) Jovana, Žižak Željko, Marković Smilja, Janković Nenad, Ignjatović Nenad, "Chitosan nanobeads loaded with Biginelli hybrids as cell-selective toxicity systems with a homogeneous distribution of the cell cycle in cancer treatment" 10, no. 68 (2020):41542-41550,
https://doi.org/10.1039/D0RA08085C .
1

Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry

Rajić, Vladimir; Stojković Simatović, Ivana; Veselinović, Ljiljana; Belošević Čavor, Jelena; Novaković, Mirjana; Popović, Maja; Škapin, Srečo Davor; Mojović, Miloš; Stojadinović, Stevan; Rac, Vladislav; Janković Častvan, Ivona; Marković, Smilja

(Royal Society of Chemistry, 2020)

TY  - JOUR
AU  - Rajić, Vladimir
AU  - Stojković Simatović, Ivana
AU  - Veselinović, Ljiljana
AU  - Belošević Čavor, Jelena
AU  - Novaković, Mirjana
AU  - Popović, Maja
AU  - Škapin, Srečo Davor
AU  - Mojović, Miloš
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Janković Častvan, Ivona
AU  - Marković, Smilja
PY  - 2020
UR  - https://pubs.rsc.org/en/content/articlelanding/2020/cp/d0cp03377d
UR  - https://dais.sanu.ac.rs/123456789/9543
AB  - Eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped zinc oxide (Zn1−xFexO, x = 0, 0.05, 0.1, 0.15 and 0.20; ZnO:Fe) nanoparticles, which were tested as catalysts toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in a moderately alkaline solution. The phase composition, crystal structure, morphology, textural properties, surface chemistry, optical properties and band structure were examined to comprehend the influence of Zn2+ partial substitution with Fe3+ on the catalytic activity of ZnO:Fe. Linear sweep voltammetry showed an improved catalytic activity of ZnO:5Fe toward the ORR, compared to pure ZnO, while with increased amounts of the Fe-dopant the activity decreased. The improvement was suggested by a more positive onset potential (0.394 V vs. RHE), current density (0.231 mA cm−2 at 0.150 V vs. RHE), and faster kinetics (Tafel slope, b = 248 mV dec−1), and it may be due to the synergistic effect of (1) a sufficient amount of surface oxygen vacancies, and (2) a certain amount of plate-like particles composed of crystallites with well developed (0001) and (000) facets. Quite the contrary, the OER study showed that the introduction of Fe3+ ions into the ZnO crystal structure resulted in enhanced catalytic activity of all ZnO:Fe samples, compared to pure ZnO, probably due to the modified binding energy and an optimized band structure. With the maximal current density of 1.066 mA cm−2 at 2.216 V vs. RHE, an onset potential of 1.856 V vs. RHE, and the smallest potential difference between the OER and ORR (ΔE = 1.58 V), ZnO:10Fe may be considered a promising bifunctional catalyst toward the OER/ORR in moderately alkaline solution. This study demonstrates that the electrocatalytic activity of ZnO:Fe strongly depends on the defect chemistry and consequently the band structure. Along with providing fundamental insight into the electrocatalytic activity of ZnO:Fe, the study also indicates an optimal stoichiometry for enhanced bifunctional activity toward the OER/ORR, compared to pure ZnO.
PB  - Royal Society of Chemistry
T2  - Physical Chemistry Chemical Physics
T1  - Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry
SP  - 22078
EP  - 22095
VL  - 22
IS  - 38
DO  - 10.1039/D0CP03377D
ER  - 
@article{
author = "Rajić, Vladimir and Stojković Simatović, Ivana and Veselinović, Ljiljana and Belošević Čavor, Jelena and Novaković, Mirjana and Popović, Maja and Škapin, Srečo Davor and Mojović, Miloš and Stojadinović, Stevan and Rac, Vladislav and Janković Častvan, Ivona and Marković, Smilja",
year = "2020",
url = "https://pubs.rsc.org/en/content/articlelanding/2020/cp/d0cp03377d, https://dais.sanu.ac.rs/123456789/9543",
abstract = "Eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped zinc oxide (Zn1−xFexO, x = 0, 0.05, 0.1, 0.15 and 0.20; ZnO:Fe) nanoparticles, which were tested as catalysts toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in a moderately alkaline solution. The phase composition, crystal structure, morphology, textural properties, surface chemistry, optical properties and band structure were examined to comprehend the influence of Zn2+ partial substitution with Fe3+ on the catalytic activity of ZnO:Fe. Linear sweep voltammetry showed an improved catalytic activity of ZnO:5Fe toward the ORR, compared to pure ZnO, while with increased amounts of the Fe-dopant the activity decreased. The improvement was suggested by a more positive onset potential (0.394 V vs. RHE), current density (0.231 mA cm−2 at 0.150 V vs. RHE), and faster kinetics (Tafel slope, b = 248 mV dec−1), and it may be due to the synergistic effect of (1) a sufficient amount of surface oxygen vacancies, and (2) a certain amount of plate-like particles composed of crystallites with well developed (0001) and (000) facets. Quite the contrary, the OER study showed that the introduction of Fe3+ ions into the ZnO crystal structure resulted in enhanced catalytic activity of all ZnO:Fe samples, compared to pure ZnO, probably due to the modified binding energy and an optimized band structure. With the maximal current density of 1.066 mA cm−2 at 2.216 V vs. RHE, an onset potential of 1.856 V vs. RHE, and the smallest potential difference between the OER and ORR (ΔE = 1.58 V), ZnO:10Fe may be considered a promising bifunctional catalyst toward the OER/ORR in moderately alkaline solution. This study demonstrates that the electrocatalytic activity of ZnO:Fe strongly depends on the defect chemistry and consequently the band structure. Along with providing fundamental insight into the electrocatalytic activity of ZnO:Fe, the study also indicates an optimal stoichiometry for enhanced bifunctional activity toward the OER/ORR, compared to pure ZnO.",
publisher = "Royal Society of Chemistry",
journal = "Physical Chemistry Chemical Physics",
title = "Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry",
pages = "22078-22095",
volume = "22",
number = "38",
doi = "10.1039/D0CP03377D"
}
Rajić, V., Stojković Simatović, I., Veselinović, L., Belošević Čavor, J., Novaković, M., Popović, M., Škapin, S. D., Mojović, M., Stojadinović, S., Rac, V., Janković Častvan, I.,& Marković, S. (2020). Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry.
Physical Chemistry Chemical PhysicsRoyal Society of Chemistry., 22(38), 22078-22095.
https://doi.org/10.1039/D0CP03377D
Rajić V, Stojković Simatović I, Veselinović L, Belošević Čavor J, Novaković M, Popović M, Škapin SD, Mojović M, Stojadinović S, Rac V, Janković Častvan I, Marković S. Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry. Physical Chemistry Chemical Physics. 2020;22(38):22078-22095
Rajić Vladimir, Stojković Simatović Ivana, Veselinović Ljiljana, Belošević Čavor Jelena, Novaković Mirjana, Popović Maja, Škapin Srečo Davor, Mojović Miloš, Stojadinović Stevan, Rac Vladislav, Janković Častvan Ivona, Marković Smilja, "Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry" 22, no. 38 (2020):22078-22095,
https://doi.org/10.1039/D0CP03377D .

Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry

Rajić, Vladimir; Stojković Simatović, Ivana; Veselinović, Ljiljana; Belošević Čavor, Jelena; Novaković, Mirjana; Popović, Maja; Škapin, Srečo Davor; Mojović, Miloš; Stojadinović, Stevan; Rac, Vladislav; Janković Častvan, Ivona; Marković, Smilja

(Royal Society of Chemistry, 2020)

TY  - JOUR
AU  - Rajić, Vladimir
AU  - Stojković Simatović, Ivana
AU  - Veselinović, Ljiljana
AU  - Belošević Čavor, Jelena
AU  - Novaković, Mirjana
AU  - Popović, Maja
AU  - Škapin, Srečo Davor
AU  - Mojović, Miloš
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Janković Častvan, Ivona
AU  - Marković, Smilja
PY  - 2020
UR  - https://pubs.rsc.org/en/content/articlelanding/2020/cp/d0cp03377d
UR  - https://dais.sanu.ac.rs/123456789/9544
AB  - Eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped zinc oxide (Zn1−xFexO, x = 0, 0.05, 0.1, 0.15 and 0.20; ZnO:Fe) nanoparticles, which were tested as catalysts toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in a moderately alkaline solution. The phase composition, crystal structure, morphology, textural properties, surface chemistry, optical properties and band structure were examined to comprehend the influence of Zn2+ partial substitution with Fe3+ on the catalytic activity of ZnO:Fe. Linear sweep voltammetry showed an improved catalytic activity of ZnO:5Fe toward the ORR, compared to pure ZnO, while with increased amounts of the Fe-dopant the activity decreased. The improvement was suggested by a more positive onset potential (0.394 V vs. RHE), current density (0.231 mA cm−2 at 0.150 V vs. RHE), and faster kinetics (Tafel slope, b = 248 mV dec−1), and it may be due to the synergistic effect of (1) a sufficient amount of surface oxygen vacancies, and (2) a certain amount of plate-like particles composed of crystallites with well developed (0001) and (000) facets. Quite the contrary, the OER study showed that the introduction of Fe3+ ions into the ZnO crystal structure resulted in enhanced catalytic activity of all ZnO:Fe samples, compared to pure ZnO, probably due to the modified binding energy and an optimized band structure. With the maximal current density of 1.066 mA cm−2 at 2.216 V vs. RHE, an onset potential of 1.856 V vs. RHE, and the smallest potential difference between the OER and ORR (ΔE = 1.58 V), ZnO:10Fe may be considered a promising bifunctional catalyst toward the OER/ORR in moderately alkaline solution. This study demonstrates that the electrocatalytic activity of ZnO:Fe strongly depends on the defect chemistry and consequently the band structure. Along with providing fundamental insight into the electrocatalytic activity of ZnO:Fe, the study also indicates an optimal stoichiometry for enhanced bifunctional activity toward the OER/ORR, compared to pure ZnO.
PB  - Royal Society of Chemistry
T2  - Physical Chemistry Chemical Physics
T1  - Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry
SP  - 22078
EP  - 22095
VL  - 22
IS  - 38
DO  - 10.1039/D0CP03377D
ER  - 
@article{
author = "Rajić, Vladimir and Stojković Simatović, Ivana and Veselinović, Ljiljana and Belošević Čavor, Jelena and Novaković, Mirjana and Popović, Maja and Škapin, Srečo Davor and Mojović, Miloš and Stojadinović, Stevan and Rac, Vladislav and Janković Častvan, Ivona and Marković, Smilja",
year = "2020",
url = "https://pubs.rsc.org/en/content/articlelanding/2020/cp/d0cp03377d, https://dais.sanu.ac.rs/123456789/9544",
abstract = "Eco-friendly and rapid microwave processing of a precipitate was used to produce Fe-doped zinc oxide (Zn1−xFexO, x = 0, 0.05, 0.1, 0.15 and 0.20; ZnO:Fe) nanoparticles, which were tested as catalysts toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in a moderately alkaline solution. The phase composition, crystal structure, morphology, textural properties, surface chemistry, optical properties and band structure were examined to comprehend the influence of Zn2+ partial substitution with Fe3+ on the catalytic activity of ZnO:Fe. Linear sweep voltammetry showed an improved catalytic activity of ZnO:5Fe toward the ORR, compared to pure ZnO, while with increased amounts of the Fe-dopant the activity decreased. The improvement was suggested by a more positive onset potential (0.394 V vs. RHE), current density (0.231 mA cm−2 at 0.150 V vs. RHE), and faster kinetics (Tafel slope, b = 248 mV dec−1), and it may be due to the synergistic effect of (1) a sufficient amount of surface oxygen vacancies, and (2) a certain amount of plate-like particles composed of crystallites with well developed (0001) and (000) facets. Quite the contrary, the OER study showed that the introduction of Fe3+ ions into the ZnO crystal structure resulted in enhanced catalytic activity of all ZnO:Fe samples, compared to pure ZnO, probably due to the modified binding energy and an optimized band structure. With the maximal current density of 1.066 mA cm−2 at 2.216 V vs. RHE, an onset potential of 1.856 V vs. RHE, and the smallest potential difference between the OER and ORR (ΔE = 1.58 V), ZnO:10Fe may be considered a promising bifunctional catalyst toward the OER/ORR in moderately alkaline solution. This study demonstrates that the electrocatalytic activity of ZnO:Fe strongly depends on the defect chemistry and consequently the band structure. Along with providing fundamental insight into the electrocatalytic activity of ZnO:Fe, the study also indicates an optimal stoichiometry for enhanced bifunctional activity toward the OER/ORR, compared to pure ZnO.",
publisher = "Royal Society of Chemistry",
journal = "Physical Chemistry Chemical Physics",
title = "Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry",
pages = "22078-22095",
volume = "22",
number = "38",
doi = "10.1039/D0CP03377D"
}
Rajić, V., Stojković Simatović, I., Veselinović, L., Belošević Čavor, J., Novaković, M., Popović, M., Škapin, S. D., Mojović, M., Stojadinović, S., Rac, V., Janković Častvan, I.,& Marković, S. (2020). Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry.
Physical Chemistry Chemical PhysicsRoyal Society of Chemistry., 22(38), 22078-22095.
https://doi.org/10.1039/D0CP03377D
Rajić V, Stojković Simatović I, Veselinović L, Belošević Čavor J, Novaković M, Popović M, Škapin SD, Mojović M, Stojadinović S, Rac V, Janković Častvan I, Marković S. Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry. Physical Chemistry Chemical Physics. 2020;22(38):22078-22095
Rajić Vladimir, Stojković Simatović Ivana, Veselinović Ljiljana, Belošević Čavor Jelena, Novaković Mirjana, Popović Maja, Škapin Srečo Davor, Mojović Miloš, Stojadinović Stevan, Rac Vladislav, Janković Častvan Ivona, Marković Smilja, "Bifunctional catalytic activity of Zn1−xFexO toward the OER/ORR: seeking an optimal stoichiometry" 22, no. 38 (2020):22078-22095,
https://doi.org/10.1039/D0CP03377D .

The NaxMnO2 materials prepared by a glycine-nitrate method as advanced cathode materials for aqueous sodium-ion rechargeable batteries

Rakočević, Lazar; Štrbac, Svetlana; Potočnik, Jelena; Popović, Maja; Jugović, Dragana; Stojković Simatović, Ivana

(Elsevier BV, 2020)

TY  - JOUR
AU  - Rakočević, Lazar
AU  - Štrbac, Svetlana
AU  - Potočnik, Jelena
AU  - Popović, Maja
AU  - Jugović, Dragana
AU  - Stojković Simatović, Ivana
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/10035
AB  - Cathodic material for sodium-ion rechargeable batteries based on NaxMnO2 were synthesized by glycine nitrate method and subsequent annealing at high temperatures. Different crystal structures with different morphologies were obtained depending on the annealing temperature: hexagonal layeredα-Na0.7MnO2.05 nanoplates were obtained at 850 °C, while 3-D tunnel structured Na0·4MnO2 and Na0·44MnO2, both with rod-like morphology, were obtained at 800 °C and 900 °C, respectively. The investigations of the electrochemical behavior of obtained cathodic materials in aqueous NaNO3 solution have shown that Na0·44MnO2 obtained at 900 °C has shown the best battery performance. Its initial discharge capacities are 123.5 mA h/g, 113.2 mA h/g, and 102.0 mA h/g at the high current densities of 1000, 2000 and 5000 mA/g, respectively.
PB  - Elsevier BV
T2  - Ceramics International
T1  - The NaxMnO2 materials prepared by a glycine-nitrate method as advanced cathode materials for aqueous sodium-ion rechargeable batteries
DO  - 10.1016/j.ceramint.2020.10.025
ER  - 
@article{
author = "Rakočević, Lazar and Štrbac, Svetlana and Potočnik, Jelena and Popović, Maja and Jugović, Dragana and Stojković Simatović, Ivana",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/10035",
abstract = "Cathodic material for sodium-ion rechargeable batteries based on NaxMnO2 were synthesized by glycine nitrate method and subsequent annealing at high temperatures. Different crystal structures with different morphologies were obtained depending on the annealing temperature: hexagonal layeredα-Na0.7MnO2.05 nanoplates were obtained at 850 °C, while 3-D tunnel structured Na0·4MnO2 and Na0·44MnO2, both with rod-like morphology, were obtained at 800 °C and 900 °C, respectively. The investigations of the electrochemical behavior of obtained cathodic materials in aqueous NaNO3 solution have shown that Na0·44MnO2 obtained at 900 °C has shown the best battery performance. Its initial discharge capacities are 123.5 mA h/g, 113.2 mA h/g, and 102.0 mA h/g at the high current densities of 1000, 2000 and 5000 mA/g, respectively.",
publisher = "Elsevier BV",
journal = "Ceramics International",
title = "The NaxMnO2 materials prepared by a glycine-nitrate method as advanced cathode materials for aqueous sodium-ion rechargeable batteries",
doi = "10.1016/j.ceramint.2020.10.025"
}
Rakočević, L., Štrbac, S., Potočnik, J., Popović, M., Jugović, D.,& Stojković Simatović, I. (2020). The NaxMnO2 materials prepared by a glycine-nitrate method as advanced cathode materials for aqueous sodium-ion rechargeable batteries.
Ceramics InternationalElsevier BV..
https://doi.org/10.1016/j.ceramint.2020.10.025
Rakočević L, Štrbac S, Potočnik J, Popović M, Jugović D, Stojković Simatović I. The NaxMnO2 materials prepared by a glycine-nitrate method as advanced cathode materials for aqueous sodium-ion rechargeable batteries. Ceramics International. 2020;
Rakočević Lazar, Štrbac Svetlana, Potočnik Jelena, Popović Maja, Jugović Dragana, Stojković Simatović Ivana, "The NaxMnO2 materials prepared by a glycine-nitrate method as advanced cathode materials for aqueous sodium-ion rechargeable batteries" (2020),
https://doi.org/10.1016/j.ceramint.2020.10.025 .

HAp:Co as tunable VIS-NIR reflective pigment

Marković, Smilja; Stojanović, Zoran; Veselinović, Ljiljana; Simić, Danica; Samolov, Aleksandra; Stojković Simatović, Ivana

(Belgrade : Military Technical Institute, 2020)

TY  - CONF
AU  - Marković, Smilja
AU  - Stojanović, Zoran
AU  - Veselinović, Ljiljana
AU  - Simić, Danica
AU  - Samolov, Aleksandra
AU  - Stojković Simatović, Ivana
PY  - 2020
UR  - http://www.vti.mod.gov.rs/oteh/elementi/rad/125.pdf
UR  - https://dais.sanu.ac.rs/123456789/10038
AB  - Radar-absorbent materials, used in stealth technology for defense aircrafts, vehicles, satellites, etc. from radar detection, are commonly based on graphite or semiconductive particles embedded in a polymer matrix. In this study, we employed Co2+ ion-substitution to improve Vis-NIR reflectivity of hydroxyapatite (Ca10(PO4)6(OH)2, HAP) powder. HAP:Co with nominally 5 at.% of Co was prepared with hydrothermal processing of a precipitate. Synthesized powder was characterized by XRD, Raman and ATR-FTIR spectroscopy, FE-SEM and TEM. Thermal stability of HAP:Co powder was examined by simultaneous TG-DTA analyzer. To modify its optical properties and obtain powders with a varietty of color tone, the HAP:Co powder was calcined at 800, 1000, and 1100 °C, in an air atmosphere, for 1 hour. Afterward, the calcined particles were used to prepare composites with poly(vinyl butyral), (PVB); the concentration range was 1 wt.% of the HAP:Co in PVB. The composite coatings, in the form of thin films on glass, were prepared by the solvent-casting technique, using ethanol as a fast evaporating solvent. Firstly, the HAP:Co particles were dispersed in ethanol, then PVB was added (Mowital B30H) and dissolved. To evaporate the solvent before spectrophotometric measurements, the coatings on glass were dried at room temperature for 72 hours. To comprehend optical properties of the coatings, diffuse reflection, transmission, and color coordinates were determined. We found that calcined HAP:Co particles have potential to be used in the formulation of coatings for camouflage protection.
PB  - Belgrade : Military Technical Institute
C3  - 9th International Scientific Conference on Defensive Technologies : OTEH2020, Belgrade, Serbia, 15-16 October 2020
T1  - HAp:Co as tunable VIS-NIR reflective pigment
SP  - 475
EP  - 480
ER  - 
@conference{
author = "Marković, Smilja and Stojanović, Zoran and Veselinović, Ljiljana and Simić, Danica and Samolov, Aleksandra and Stojković Simatović, Ivana",
year = "2020",
url = "http://www.vti.mod.gov.rs/oteh/elementi/rad/125.pdf, https://dais.sanu.ac.rs/123456789/10038",
abstract = "Radar-absorbent materials, used in stealth technology for defense aircrafts, vehicles, satellites, etc. from radar detection, are commonly based on graphite or semiconductive particles embedded in a polymer matrix. In this study, we employed Co2+ ion-substitution to improve Vis-NIR reflectivity of hydroxyapatite (Ca10(PO4)6(OH)2, HAP) powder. HAP:Co with nominally 5 at.% of Co was prepared with hydrothermal processing of a precipitate. Synthesized powder was characterized by XRD, Raman and ATR-FTIR spectroscopy, FE-SEM and TEM. Thermal stability of HAP:Co powder was examined by simultaneous TG-DTA analyzer. To modify its optical properties and obtain powders with a varietty of color tone, the HAP:Co powder was calcined at 800, 1000, and 1100 °C, in an air atmosphere, for 1 hour. Afterward, the calcined particles were used to prepare composites with poly(vinyl butyral), (PVB); the concentration range was 1 wt.% of the HAP:Co in PVB. The composite coatings, in the form of thin films on glass, were prepared by the solvent-casting technique, using ethanol as a fast evaporating solvent. Firstly, the HAP:Co particles were dispersed in ethanol, then PVB was added (Mowital B30H) and dissolved. To evaporate the solvent before spectrophotometric measurements, the coatings on glass were dried at room temperature for 72 hours. To comprehend optical properties of the coatings, diffuse reflection, transmission, and color coordinates were determined. We found that calcined HAP:Co particles have potential to be used in the formulation of coatings for camouflage protection.",
publisher = "Belgrade : Military Technical Institute",
journal = "9th International Scientific Conference on Defensive Technologies : OTEH2020, Belgrade, Serbia, 15-16 October 2020",
title = "HAp:Co as tunable VIS-NIR reflective pigment",
pages = "475-480"
}
Marković, S., Stojanović, Z., Veselinović, L., Simić, D., Samolov, A.,& Stojković Simatović, I. (2020). HAp:Co as tunable VIS-NIR reflective pigment.
9th International Scientific Conference on Defensive Technologies : OTEH2020, Belgrade, Serbia, 15-16 October 2020Belgrade : Military Technical Institute., 475-480.
Marković S, Stojanović Z, Veselinović L, Simić D, Samolov A, Stojković Simatović I. HAp:Co as tunable VIS-NIR reflective pigment. 9th International Scientific Conference on Defensive Technologies : OTEH2020, Belgrade, Serbia, 15-16 October 2020. 2020;:475-480
Marković Smilja, Stojanović Zoran, Veselinović Ljiljana, Simić Danica, Samolov Aleksandra, Stojković Simatović Ivana, "HAp:Co as tunable VIS-NIR reflective pigment" (2020):475-480

Study of Nanosized Hydroxyapatite Material Annealing at Different Retention Times

Miljković, Miljana; Kljajević, Ljiljana; Filipović, Suzana; Pavlović, Vladimir B.; Nenadović, Snežana S.

(Belgrade : ETRAN, 2020)

TY  - JOUR
AU  - Miljković, Miljana
AU  - Kljajević, Ljiljana
AU  - Filipović, Suzana
AU  - Pavlović, Vladimir B.
AU  - Nenadović, Snežana S.
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/10041
AB  - The aim of the study was to investigate the influence of low heating temperatures with two different retention times to optimize the process for obtaining nanosized hydroxyapatite material that can possibly be used in the fields of biology and pharmacy. Nanosized hydroxyapatite was successfully obtained by wet chemical precipitation. The annealing of the material performed at 300 oC with two different retention times i.e. 3 and 6 hours in air atmosphere. Low annealing temperature with extended retention time was selected in terms to reduce energy consumption. FTIR spectroscopy was used to confirm characteristic vibrational bands of hydroxyapatite samples, and presence of carbonate bands of hydroxyapatite annealed for 3h and 6h. X-Ray powder diffraction analysis were used to examine phase composition, determine the size of unit cells and crystallite sizes, and SEMEDS methods were used to obtain particle size and arrangement also grain growth morphology and confirmed the presence of calcium, phosphorous oxygen and carbonate peaks. The results show that different retention time has influence on particle growth as well as unit cell parameters and crystallite sizes changes of hydroxyapatite material.
PB  - Belgrade : ETRAN
T2  - Science of Sintering
T1  - Study of Nanosized Hydroxyapatite Material Annealing at Different Retention Times
SP  - 405
EP  - 413
VL  - 52
IS  - 4
DO  - 10.2298/SOS2004405M
ER  - 
@article{
author = "Miljković, Miljana and Kljajević, Ljiljana and Filipović, Suzana and Pavlović, Vladimir B. and Nenadović, Snežana S.",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/10041",
abstract = "The aim of the study was to investigate the influence of low heating temperatures with two different retention times to optimize the process for obtaining nanosized hydroxyapatite material that can possibly be used in the fields of biology and pharmacy. Nanosized hydroxyapatite was successfully obtained by wet chemical precipitation. The annealing of the material performed at 300 oC with two different retention times i.e. 3 and 6 hours in air atmosphere. Low annealing temperature with extended retention time was selected in terms to reduce energy consumption. FTIR spectroscopy was used to confirm characteristic vibrational bands of hydroxyapatite samples, and presence of carbonate bands of hydroxyapatite annealed for 3h and 6h. X-Ray powder diffraction analysis were used to examine phase composition, determine the size of unit cells and crystallite sizes, and SEMEDS methods were used to obtain particle size and arrangement also grain growth morphology and confirmed the presence of calcium, phosphorous oxygen and carbonate peaks. The results show that different retention time has influence on particle growth as well as unit cell parameters and crystallite sizes changes of hydroxyapatite material.",
publisher = "Belgrade : ETRAN",
journal = "Science of Sintering",
title = "Study of Nanosized Hydroxyapatite Material Annealing at Different Retention Times",
pages = "405-413",
volume = "52",
number = "4",
doi = "10.2298/SOS2004405M"
}
Miljković, M., Kljajević, L., Filipović, S., Pavlović, V. B.,& Nenadović, S. S. (2020). Study of Nanosized Hydroxyapatite Material Annealing at Different Retention Times.
Science of SinteringBelgrade : ETRAN., 52(4), 405-413.
https://doi.org/10.2298/SOS2004405M
Miljković M, Kljajević L, Filipović S, Pavlović VB, Nenadović SS. Study of Nanosized Hydroxyapatite Material Annealing at Different Retention Times. Science of Sintering. 2020;52(4):405-413
Miljković Miljana, Kljajević Ljiljana, Filipović Suzana, Pavlović Vladimir B., Nenadović Snežana S., "Study of Nanosized Hydroxyapatite Material Annealing at Different Retention Times" 52, no. 4 (2020):405-413,
https://doi.org/10.2298/SOS2004405M .
1

Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics

Kosanović, Darko; Labus, Nebojša; Živojinović, Jelena; Peleš Tadić, Adriana; Blagojević, Vladimir A.; Pavlović, Vladimir B.

(Belgrade : ETRAN, 2020)

TY  - JOUR
AU  - Kosanović, Darko
AU  - Labus, Nebojša
AU  - Živojinović, Jelena
AU  - Peleš Tadić, Adriana
AU  - Blagojević, Vladimir A.
AU  - Pavlović, Vladimir B.
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/10039
AB  - The influence of mechanical activation on the formation, sintering kinetics and morphology was investigated in sintered barium strontium titanate (BST) ceramics with different Ba-to-Sr ratios. Initial powders were mechanically activated for 20 and 120 min, leading to mechano-chemical reaction and formation of BaxSr1-xTiO3 phases. Agglomeration was found to represent an important factor in the process of formation of BaxSr1-xTiO3 phases around 800 oC and during sintering. It reduces the effectiveness of mechanical activation on formation of BaxSr1-xTiO3 phases beyond the short period (20 min), while in the process of sintering, prolonged mechanical activation (120 min) leads to a significant reduction in sintering temperature and the corresponding value of activation energy. In addition, all three systems show a phase transformation around 1100 oC, attributed to the hexagonal-to-cubic phase transition. Morphology of the final sintered ceramics can be correlated primarily with the state of the pre-sintered powder, where mechanically activated powders with smaller particle size produced more compact and less porous final product.
PB  - Belgrade : ETRAN
T2  - Science of Sintering
T1  - Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics
SP  - 371
EP  - 385
VL  - 52
IS  - 4
DO  - 10.2298/SOS2004371K
ER  - 
@article{
author = "Kosanović, Darko and Labus, Nebojša and Živojinović, Jelena and Peleš Tadić, Adriana and Blagojević, Vladimir A. and Pavlović, Vladimir B.",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/10039",
abstract = "The influence of mechanical activation on the formation, sintering kinetics and morphology was investigated in sintered barium strontium titanate (BST) ceramics with different Ba-to-Sr ratios. Initial powders were mechanically activated for 20 and 120 min, leading to mechano-chemical reaction and formation of BaxSr1-xTiO3 phases. Agglomeration was found to represent an important factor in the process of formation of BaxSr1-xTiO3 phases around 800 oC and during sintering. It reduces the effectiveness of mechanical activation on formation of BaxSr1-xTiO3 phases beyond the short period (20 min), while in the process of sintering, prolonged mechanical activation (120 min) leads to a significant reduction in sintering temperature and the corresponding value of activation energy. In addition, all three systems show a phase transformation around 1100 oC, attributed to the hexagonal-to-cubic phase transition. Morphology of the final sintered ceramics can be correlated primarily with the state of the pre-sintered powder, where mechanically activated powders with smaller particle size produced more compact and less porous final product.",
publisher = "Belgrade : ETRAN",
journal = "Science of Sintering",
title = "Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics",
pages = "371-385",
volume = "52",
number = "4",
doi = "10.2298/SOS2004371K"
}
Kosanović, D., Labus, N., Živojinović, J., Peleš Tadić, A., Blagojević, V. A.,& Pavlović, V. B. (2020). Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics.
Science of SinteringBelgrade : ETRAN., 52(4), 371-385.
https://doi.org/10.2298/SOS2004371K
Kosanović D, Labus N, Živojinović J, Peleš Tadić A, Blagojević VA, Pavlović VB. Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics. Science of Sintering. 2020;52(4):371-385
Kosanović Darko, Labus Nebojša, Živojinović Jelena, Peleš Tadić Adriana, Blagojević Vladimir A., Pavlović Vladimir B., "Effects of Mechanical Activation on the Formation and Sintering Kinetics of Barium Strontium Titanate Ceramics" 52, no. 4 (2020):371-385,
https://doi.org/10.2298/SOS2004371K .

Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect

Dinić, Ivana; Vuković, Marina; Nikolić, Marko G.; Tan, Zhenquan; Milošević, Olivera; Mančić, Lidija

(American Institute of Physics, 2020)

TY  - JOUR
AU  - Dinić, Ivana
AU  - Vuković, Marina
AU  - Nikolić, Marko G.
AU  - Tan, Zhenquan
AU  - Milošević, Olivera
AU  - Mančić, Lidija
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/9818
AB  - The synthesis of lanthanide doped up-converting nanoparticles (UCNPs), whose morphological, structural, and luminescence properties are well suited for applications in optoelectronics, forensics, security, or biomedicine, is of tremendous significance. The most commonly used synthesis method comprises decomposition of organometallic compounds in an oxygen-free environment and subsequent infliction of a biocompatible layer on the particle surface. In this work, hydroxyl-carboxyl (- OH/ - COOH) type of chelating agents (citric acid and sodium citrate) are used in situ for the solvothermal synthesis of hydrophilic NaY0.5Gd0.3F4:Yb,Er UCNPs from rare earth nitrate salts and different fluoride sources (NaF, NH4F, and NH4HF2). X-ray powder diffraction showed crystallization of cubic and hexagonal NaY0.5Gd0.3F4:Yb,Er phases in nano- and micro-sized particles, respectively. The content of the hexagonal phase prevails in the samples obtained when Na-citrate is used, while the size and shape of the synthesized mesocrystals are affected by the choice of fluoride source used for precipitation. All particles are functionalized with citrate ligands and emit intense green light at 519 nm and 539 nm (2H11/2, 4S3/2 → 4I15/2) under near infrared light. The intensity of this emission is distressed by the change in the origin of phonon energy of the host matrix revealed by the change in the number of the excitation photons absorbed per emitted photon.
PB  - American Institute of Physics
T2  - The Journal of Chemical Physics
T1  - Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect
SP  - 084706
VL  - 153
IS  - 8
DO  - 10.1063/5.0016559
ER  - 
@article{
author = "Dinić, Ivana and Vuković, Marina and Nikolić, Marko G. and Tan, Zhenquan and Milošević, Olivera and Mančić, Lidija",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/9818",
abstract = "The synthesis of lanthanide doped up-converting nanoparticles (UCNPs), whose morphological, structural, and luminescence properties are well suited for applications in optoelectronics, forensics, security, or biomedicine, is of tremendous significance. The most commonly used synthesis method comprises decomposition of organometallic compounds in an oxygen-free environment and subsequent infliction of a biocompatible layer on the particle surface. In this work, hydroxyl-carboxyl (- OH/ - COOH) type of chelating agents (citric acid and sodium citrate) are used in situ for the solvothermal synthesis of hydrophilic NaY0.5Gd0.3F4:Yb,Er UCNPs from rare earth nitrate salts and different fluoride sources (NaF, NH4F, and NH4HF2). X-ray powder diffraction showed crystallization of cubic and hexagonal NaY0.5Gd0.3F4:Yb,Er phases in nano- and micro-sized particles, respectively. The content of the hexagonal phase prevails in the samples obtained when Na-citrate is used, while the size and shape of the synthesized mesocrystals are affected by the choice of fluoride source used for precipitation. All particles are functionalized with citrate ligands and emit intense green light at 519 nm and 539 nm (2H11/2, 4S3/2 → 4I15/2) under near infrared light. The intensity of this emission is distressed by the change in the origin of phonon energy of the host matrix revealed by the change in the number of the excitation photons absorbed per emitted photon.",
publisher = "American Institute of Physics",
journal = "The Journal of Chemical Physics",
title = "Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect",
pages = "084706",
volume = "153",
number = "8",
doi = "10.1063/5.0016559"
}
Dinić, I., Vuković, M., Nikolić, M. G., Tan, Z., Milošević, O.,& Mančić, L. (2020). Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect.
The Journal of Chemical PhysicsAmerican Institute of Physics., 153(8), 084706.
https://doi.org/10.1063/5.0016559
Dinić I, Vuković M, Nikolić MG, Tan Z, Milošević O, Mančić L. Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect. The Journal of Chemical Physics. 2020;153(8):084706
Dinić Ivana, Vuković Marina, Nikolić Marko G., Tan Zhenquan, Milošević Olivera, Mančić Lidija, "Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect" 153, no. 8 (2020):084706,
https://doi.org/10.1063/5.0016559 .
1
1
1

Flexibility options to tackle intermittency in the energy systems with high share of renewable energy

Pfeifer, A.; Herc, L.; Batas-Bijelić, Ilija

(Zagreb : Faculty of Mechanical Engineering and Naval Architecture, 2020)

TY  - CONF
AU  - Pfeifer, A.
AU  - Herc, L.
AU  - Batas-Bijelić, Ilija
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/9983
AB  - Recent ”Green deal” of European union includes the decision to become carbon neutral and even carbon-negative region in order to tackle the climate crisis. Such decision includes energy transition from energy production based on fossil fuels to the system based on variable renewable energy sources. Main technical challenge and a key factor in the techno-economic analysis of the energy system of the future, based on variable renewable energy sources, is their variable production. In order to deal with this problem in long-term energy planning, different approaches have been tried, focusing on overcapacity, storage capacities and sectors coupling with heating and transport. In this research, different flexibility options, storage and demand response technologies are modelled on several levels of energy systems: national, regional and continental. With the case study area including all EU countries modelled in EnergyPLAN model, the goal of the research is to show how each flexibility option influences the production capacities of renewable energy source technologies, storage technologies and demand response in order to reach a certain share of renewable energy in final energy consumed. Climate differences were taken into account for modelling of the behaviour of flexibility options, which is shown to be relevant for the creation of their representative curves. Representative curves are created as functions of critical excess electricity produced and share of renewable energy integrated into the system. Results show representative curves of most relevant flexibility options for several regions of EU and for the whole EU as one region. These results are further discussed in terms of strategic decisions addressing the dynamics of integration of such technologies, i.e. deciding on the priority of their integration in the energy system of the region in consideration. Results of research can be applied for integrated assessment models, in long-term planning of energy transition towards carbon-negative energy systems.
PB  - Zagreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - Book of abstracts / 15th conference on sustainable development of energy, water and environment systems, September 1-5, 2020, Cologne, Germany : 15th SDEWES Conference, Cologne 2020
T1  - Flexibility options to tackle intermittency in the energy systems with high share of renewable energy
SP  - 207
EP  - 207
ER  - 
@conference{
author = "Pfeifer, A. and Herc, L. and Batas-Bijelić, Ilija",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/9983",
abstract = "Recent ”Green deal” of European union includes the decision to become carbon neutral and even carbon-negative region in order to tackle the climate crisis. Such decision includes energy transition from energy production based on fossil fuels to the system based on variable renewable energy sources. Main technical challenge and a key factor in the techno-economic analysis of the energy system of the future, based on variable renewable energy sources, is their variable production. In order to deal with this problem in long-term energy planning, different approaches have been tried, focusing on overcapacity, storage capacities and sectors coupling with heating and transport. In this research, different flexibility options, storage and demand response technologies are modelled on several levels of energy systems: national, regional and continental. With the case study area including all EU countries modelled in EnergyPLAN model, the goal of the research is to show how each flexibility option influences the production capacities of renewable energy source technologies, storage technologies and demand response in order to reach a certain share of renewable energy in final energy consumed. Climate differences were taken into account for modelling of the behaviour of flexibility options, which is shown to be relevant for the creation of their representative curves. Representative curves are created as functions of critical excess electricity produced and share of renewable energy integrated into the system. Results show representative curves of most relevant flexibility options for several regions of EU and for the whole EU as one region. These results are further discussed in terms of strategic decisions addressing the dynamics of integration of such technologies, i.e. deciding on the priority of their integration in the energy system of the region in consideration. Results of research can be applied for integrated assessment models, in long-term planning of energy transition towards carbon-negative energy systems.",
publisher = "Zagreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "Book of abstracts / 15th conference on sustainable development of energy, water and environment systems, September 1-5, 2020, Cologne, Germany : 15th SDEWES Conference, Cologne 2020",
title = "Flexibility options to tackle intermittency in the energy systems with high share of renewable energy",
pages = "207-207"
}
Pfeifer, A., Herc, L.,& Batas-Bijelić, I. (2020). Flexibility options to tackle intermittency in the energy systems with high share of renewable energy.
Book of abstracts / 15th conference on sustainable development of energy, water and environment systems, September 1-5, 2020, Cologne, Germany : 15th SDEWES Conference, Cologne 2020Zagreb : Faculty of Mechanical Engineering and Naval Architecture., 207-207.
Pfeifer A, Herc L, Batas-Bijelić I. Flexibility options to tackle intermittency in the energy systems with high share of renewable energy. Book of abstracts / 15th conference on sustainable development of energy, water and environment systems, September 1-5, 2020, Cologne, Germany : 15th SDEWES Conference, Cologne 2020. 2020;:207-207
Pfeifer A., Herc L., Batas-Bijelić Ilija, "Flexibility options to tackle intermittency in the energy systems with high share of renewable energy" (2020):207-207

National energy and climate planning approach for the Western Balkans: case study Republic of Serbia

Batas-Bijelić, Ilija; Rajaković, Nikola

(Zabreb : Faculty of Mechanical Engineering and Naval Architecture, 2020)

TY  - CONF
AU  - Batas-Bijelić, Ilija
AU  - Rajaković, Nikola
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/9984
AB  - Just in the immediate neighborhood of European Union (EU), Western Balkan (WB) countries are lagging behind in the energy transition regardless technological advances and policy instruments available. EU recently created a momentum for the energy transition acceleration with the European Green Deal, which is forwarded to the WB through the Energy Community secretariat and in general, the response in the form of National Energy and Climate Plans (NECPs) is expected in the short to midterm. Recently presented the new Republic of Serbia’s Low Carbon Development Strategy with Action plan (LEDS) will be analyzed, commented and improvements suggested for the acceleration of the energy transition, based on the newest findings from the simulation-based optimization techniques using the sectors coupling approach. Furthermore, integrated assessment modeling (IAM) techniques, exploring the climate and energy cross impacts with the more details will be included. The purpose of the research is to provide the decision makers in the WB with the best available insights regarding sustainable energy systems, and citizens of the WB with better chance to benefit from adoption of these strategies in just transit ion.
PB  - Zabreb : Faculty of Mechanical Engineering and Naval Architecture
C3  - Book of abstracts / 4th South East conference on sustainable development of energy, water and environment systems, June 28 - July 2, 2020, Sarajevo, Bosnia and Herzegovina : 4th SEE SDEWES Conference, Sarajevo 2020
T1  - National energy and climate planning approach for the Western Balkans: case study Republic of Serbia
SP  - 52
EP  - 52
ER  - 
@conference{
author = "Batas-Bijelić, Ilija and Rajaković, Nikola",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/9984",
abstract = "Just in the immediate neighborhood of European Union (EU), Western Balkan (WB) countries are lagging behind in the energy transition regardless technological advances and policy instruments available. EU recently created a momentum for the energy transition acceleration with the European Green Deal, which is forwarded to the WB through the Energy Community secretariat and in general, the response in the form of National Energy and Climate Plans (NECPs) is expected in the short to midterm. Recently presented the new Republic of Serbia’s Low Carbon Development Strategy with Action plan (LEDS) will be analyzed, commented and improvements suggested for the acceleration of the energy transition, based on the newest findings from the simulation-based optimization techniques using the sectors coupling approach. Furthermore, integrated assessment modeling (IAM) techniques, exploring the climate and energy cross impacts with the more details will be included. The purpose of the research is to provide the decision makers in the WB with the best available insights regarding sustainable energy systems, and citizens of the WB with better chance to benefit from adoption of these strategies in just transit ion.",
publisher = "Zabreb : Faculty of Mechanical Engineering and Naval Architecture",
journal = "Book of abstracts / 4th South East conference on sustainable development of energy, water and environment systems, June 28 - July 2, 2020, Sarajevo, Bosnia and Herzegovina : 4th SEE SDEWES Conference, Sarajevo 2020",
title = "National energy and climate planning approach for the Western Balkans: case study Republic of Serbia",
pages = "52-52"
}
Batas-Bijelić, I.,& Rajaković, N. (2020). National energy and climate planning approach for the Western Balkans: case study Republic of Serbia.
Book of abstracts / 4th South East conference on sustainable development of energy, water and environment systems, June 28 - July 2, 2020, Sarajevo, Bosnia and Herzegovina : 4th SEE SDEWES Conference, Sarajevo 2020Zabreb : Faculty of Mechanical Engineering and Naval Architecture., 52-52.
Batas-Bijelić I, Rajaković N. National energy and climate planning approach for the Western Balkans: case study Republic of Serbia. Book of abstracts / 4th South East conference on sustainable development of energy, water and environment systems, June 28 - July 2, 2020, Sarajevo, Bosnia and Herzegovina : 4th SEE SDEWES Conference, Sarajevo 2020. 2020;:52-52
Batas-Bijelić Ilija, Rajaković Nikola, "National energy and climate planning approach for the Western Balkans: case study Republic of Serbia" (2020):52-52

Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte

Radonjić, Aleksandar

(Institute of Electrical and Electronics Engineers (IEEE), 2020)

TY  - JOUR
AU  - Radonjić, Aleksandar
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/9990
AB  - This article presents a class of integer codes that are suitable for use in optical computer networks in which the data are transmitted serially. The presented codes are constructed with the help of a computer and have three desirable properties. First, they use integer and lookup table operations, which make them suitable for software implementation. Second, depending on the application requirements, the proposed codes can be used as low-rate error correction (EC) codes or as high-rate error detection (ED) codes. In the EC mode, which is suited for realtime applications, the receiver can correct all single and double errors, as well as all triple-adjacent (TA) errors within one b-bit byte. On the other hand, if the integrity of data is of high importance, the receiver may operate in the ED mode. In that case, it is able to detect all quadruple errors, all double TA errors within one b-bit byte, and all double TA errors within two b-bit bytes. Finally, it is important to note that the presented codes can be interleaved without delay and without using any additional hardware. Owing to this, it is possible to construct simple codes capable of detecting/correcting multiple TA and random errors.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
T2  - IEEE Transactions on Very Large Scale Integration (VLSI) Systems
T1  - Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte
SP  - 1901
EP  - 1908
VL  - 28
IS  - 8
DO  - 10.1109/TVLSI.2020.2998364
ER  - 
@article{
author = "Radonjić, Aleksandar",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/9990",
abstract = "This article presents a class of integer codes that are suitable for use in optical computer networks in which the data are transmitted serially. The presented codes are constructed with the help of a computer and have three desirable properties. First, they use integer and lookup table operations, which make them suitable for software implementation. Second, depending on the application requirements, the proposed codes can be used as low-rate error correction (EC) codes or as high-rate error detection (ED) codes. In the EC mode, which is suited for realtime applications, the receiver can correct all single and double errors, as well as all triple-adjacent (TA) errors within one b-bit byte. On the other hand, if the integrity of data is of high importance, the receiver may operate in the ED mode. In that case, it is able to detect all quadruple errors, all double TA errors within one b-bit byte, and all double TA errors within two b-bit bytes. Finally, it is important to note that the presented codes can be interleaved without delay and without using any additional hardware. Owing to this, it is possible to construct simple codes capable of detecting/correcting multiple TA and random errors.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "IEEE Transactions on Very Large Scale Integration (VLSI) Systems",
title = "Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte",
pages = "1901-1908",
volume = "28",
number = "8",
doi = "10.1109/TVLSI.2020.2998364"
}
Radonjić, A. (2020). Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte.
IEEE Transactions on Very Large Scale Integration (VLSI) SystemsInstitute of Electrical and Electronics Engineers (IEEE)., 28(8), 1901-1908.
https://doi.org/10.1109/TVLSI.2020.2998364
Radonjić A. Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte. IEEE Transactions on Very Large Scale Integration (VLSI) Systems. 2020;28(8):1901-1908
Radonjić Aleksandar, "Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte" 28, no. 8 (2020):1901-1908,
https://doi.org/10.1109/TVLSI.2020.2998364 .
1
1
1

Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte

Radonjić, Aleksandar

(Institute of Electrical and Electronics Engineers (IEEE), 2020)

TY  - JOUR
AU  - Radonjić, Aleksandar
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/9991
AB  - This article presents a class of integer codes that are suitable for use in optical computer networks in which the data are transmitted serially. The presented codes are constructed with the help of a computer and have three desirable properties. First, they use integer and lookup table operations, which make them suitable for software implementation. Second, depending on the application requirements, the proposed codes can be used as low-rate error correction (EC) codes or as high-rate error detection (ED) codes. In the EC mode, which is suited for realtime applications, the receiver can correct all single and double errors, as well as all triple-adjacent (TA) errors within one b-bit byte. On the other hand, if the integrity of data is of high importance, the receiver may operate in the ED mode. In that case, it is able to detect all quadruple errors, all double TA errors within one b-bit byte, and all double TA errors within two b-bit bytes. Finally, it is important to note that the presented codes can be interleaved without delay and without using any additional hardware. Owing to this, it is possible to construct simple codes capable of detecting/correcting multiple TA and random errors.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
T2  - IEEE Transactions on Very Large Scale Integration (VLSI) Systems
T1  - Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte
SP  - 1901
EP  - 1908
VL  - 28
IS  - 8
DO  - 10.1109/TVLSI.2020.2998364
ER  - 
@article{
author = "Radonjić, Aleksandar",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/9991",
abstract = "This article presents a class of integer codes that are suitable for use in optical computer networks in which the data are transmitted serially. The presented codes are constructed with the help of a computer and have three desirable properties. First, they use integer and lookup table operations, which make them suitable for software implementation. Second, depending on the application requirements, the proposed codes can be used as low-rate error correction (EC) codes or as high-rate error detection (ED) codes. In the EC mode, which is suited for realtime applications, the receiver can correct all single and double errors, as well as all triple-adjacent (TA) errors within one b-bit byte. On the other hand, if the integrity of data is of high importance, the receiver may operate in the ED mode. In that case, it is able to detect all quadruple errors, all double TA errors within one b-bit byte, and all double TA errors within two b-bit bytes. Finally, it is important to note that the presented codes can be interleaved without delay and without using any additional hardware. Owing to this, it is possible to construct simple codes capable of detecting/correcting multiple TA and random errors.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "IEEE Transactions on Very Large Scale Integration (VLSI) Systems",
title = "Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte",
pages = "1901-1908",
volume = "28",
number = "8",
doi = "10.1109/TVLSI.2020.2998364"
}
Radonjić, A. (2020). Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte.
IEEE Transactions on Very Large Scale Integration (VLSI) SystemsInstitute of Electrical and Electronics Engineers (IEEE)., 28(8), 1901-1908.
https://doi.org/10.1109/TVLSI.2020.2998364
Radonjić A. Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte. IEEE Transactions on Very Large Scale Integration (VLSI) Systems. 2020;28(8):1901-1908
Radonjić Aleksandar, "Integer Codes Correcting Double Errors and Triple-Adjacent Errors Within a Byte" 28, no. 8 (2020):1901-1908,
https://doi.org/10.1109/TVLSI.2020.2998364 .
1
1
1

Stochastic two-bit on-line temperature measurement with RTD Pt-100 sensor operating in a nonlinear mode

Sovilj, Platon; Vujičić, Bojan; Pejić, Dragan; Radonjić, Aleksandar; Vujičić, Vladimir

(International Measurement Confederation, 2020)

TY  - CONF
AU  - Sovilj, Platon
AU  - Vujičić, Bojan
AU  - Pejić, Dragan
AU  - Radonjić, Aleksandar
AU  - Vujičić, Vladimir
PY  - 2020
UR  - https://weconf.eu/imeko-tc4-2020/presentation/stochastic-two-bit-on-line-temperature-measurement-with-rtd-pt-100-sensor-operating-in-a-nonlinear-mode
UR  - https://dais.sanu.ac.rs/123456789/9996
AB  - The paper proposes a method and device for on-line temperature measurement with Pt-100 sensor operating in a nonlinear mode. The sensor measures the temperature in range of 00C to 2000C, whereas the measured data are processed by applying a two-bit stochastic digital measurement method. The proposal is theoretically analyzed and tested experimentally. It is shown that the accuracy of the method depends on the accuracy of the sensor. At a sampling frequency of 1 MHz, the maximum accuracy is reached in 17.5 sec. and is equal to 0.015% of full scale (FS). On the other hand, when the measurement time interval is 0.1 sec. (the shortest measurement interval), the accuracy is equal to 0.1% of FS. Therefore, the proposed device can be used for both calibration and measurement purposes.
PB  - International Measurement Confederation
C3  - 24th IMEKO TC4 International Symposium, 22nd International Workshop on ADC and DAC Modelling and Testing : IMEKO TC-4 2020, Palermo, Italy, September 14-16, 2020
T1  - Stochastic two-bit on-line temperature measurement with RTD Pt-100 sensor operating in a nonlinear mode
ER  - 
@conference{
author = "Sovilj, Platon and Vujičić, Bojan and Pejić, Dragan and Radonjić, Aleksandar and Vujičić, Vladimir",
year = "2020",
url = "https://weconf.eu/imeko-tc4-2020/presentation/stochastic-two-bit-on-line-temperature-measurement-with-rtd-pt-100-sensor-operating-in-a-nonlinear-mode, https://dais.sanu.ac.rs/123456789/9996",
abstract = "The paper proposes a method and device for on-line temperature measurement with Pt-100 sensor operating in a nonlinear mode. The sensor measures the temperature in range of 00C to 2000C, whereas the measured data are processed by applying a two-bit stochastic digital measurement method. The proposal is theoretically analyzed and tested experimentally. It is shown that the accuracy of the method depends on the accuracy of the sensor. At a sampling frequency of 1 MHz, the maximum accuracy is reached in 17.5 sec. and is equal to 0.015% of full scale (FS). On the other hand, when the measurement time interval is 0.1 sec. (the shortest measurement interval), the accuracy is equal to 0.1% of FS. Therefore, the proposed device can be used for both calibration and measurement purposes.",
publisher = "International Measurement Confederation",
journal = "24th IMEKO TC4 International Symposium, 22nd International Workshop on ADC and DAC Modelling and Testing : IMEKO TC-4 2020, Palermo, Italy, September 14-16, 2020",
title = "Stochastic two-bit on-line temperature measurement with RTD Pt-100 sensor operating in a nonlinear mode"
}
Sovilj, P., Vujičić, B., Pejić, D., Radonjić, A.,& Vujičić, V. (2020). Stochastic two-bit on-line temperature measurement with RTD Pt-100 sensor operating in a nonlinear mode.
24th IMEKO TC4 International Symposium, 22nd International Workshop on ADC and DAC Modelling and Testing : IMEKO TC-4 2020, Palermo, Italy, September 14-16, 2020International Measurement Confederation..
Sovilj P, Vujičić B, Pejić D, Radonjić A, Vujičić V. Stochastic two-bit on-line temperature measurement with RTD Pt-100 sensor operating in a nonlinear mode. 24th IMEKO TC4 International Symposium, 22nd International Workshop on ADC and DAC Modelling and Testing : IMEKO TC-4 2020, Palermo, Italy, September 14-16, 2020. 2020;
Sovilj Platon, Vujičić Bojan, Pejić Dragan, Radonjić Aleksandar, Vujičić Vladimir, "Stochastic two-bit on-line temperature measurement with RTD Pt-100 sensor operating in a nonlinear mode" (2020)

Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte

Radonjić, Aleksandar

(Institute of Electrical and Electronics Engineers (IEEE), 2020)

TY  - JOUR
AU  - Radonjić, Aleksandar
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/9997
AB  - Correcting single and detecting adjacent errors has become important in memory systems using high density DRAM chips. The reason is that, in these systems, the strike of a single energetic particle can upset one or more adjacent bits. In this article, we present a simple solution for this problem based on integer codes capable of correcting single errors and detecting l -bit burst errors confined to a b -bit byte ( 1<l<b ). Unlike the classical approach, the proposed one does not rely on the use of dedicated encoding/decoding hardware. Instead, it uses the processor as both encoder and decoder. The effectiveness of such solution is demonstrated on a theoretical model of an eight-core processor. The obtained results show that it has the potential to be used in future DDR5 systems.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
T2  - IEEE Transactions on Device and Materials Reliability
T1  - Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte
SP  - 748
EP  - 753
VL  - 20
IS  - 4
DO  - 10.1109/TDMR.2020.3033511
ER  - 
@article{
author = "Radonjić, Aleksandar",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/9997",
abstract = "Correcting single and detecting adjacent errors has become important in memory systems using high density DRAM chips. The reason is that, in these systems, the strike of a single energetic particle can upset one or more adjacent bits. In this article, we present a simple solution for this problem based on integer codes capable of correcting single errors and detecting l -bit burst errors confined to a b -bit byte ( 1<l<b ). Unlike the classical approach, the proposed one does not rely on the use of dedicated encoding/decoding hardware. Instead, it uses the processor as both encoder and decoder. The effectiveness of such solution is demonstrated on a theoretical model of an eight-core processor. The obtained results show that it has the potential to be used in future DDR5 systems.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "IEEE Transactions on Device and Materials Reliability",
title = "Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte",
pages = "748-753",
volume = "20",
number = "4",
doi = "10.1109/TDMR.2020.3033511"
}
Radonjić, A. (2020). Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte.
IEEE Transactions on Device and Materials ReliabilityInstitute of Electrical and Electronics Engineers (IEEE)., 20(4), 748-753.
https://doi.org/10.1109/TDMR.2020.3033511
Radonjić A. Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte. IEEE Transactions on Device and Materials Reliability. 2020;20(4):748-753
Radonjić Aleksandar, "Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte" 20, no. 4 (2020):748-753,
https://doi.org/10.1109/TDMR.2020.3033511 .
1

Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte

Radonjić, Aleksandar

(Institute of Electrical and Electronics Engineers (IEEE), 2020)

TY  - JOUR
AU  - Radonjić, Aleksandar
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/9998
AB  - Correcting single and detecting adjacent errors has become important in memory systems using high density DRAM chips. The reason is that, in these systems, the strike of a single energetic particle can upset one or more adjacent bits. In this article, we present a simple solution for this problem based on integer codes capable of correcting single errors and detecting l -bit burst errors confined to a b -bit byte ( 1<l<b ). Unlike the classical approach, the proposed one does not rely on the use of dedicated encoding/decoding hardware. Instead, it uses the processor as both encoder and decoder. The effectiveness of such solution is demonstrated on a theoretical model of an eight-core processor. The obtained results show that it has the potential to be used in future DDR5 systems.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
T2  - IEEE Transactions on Device and Materials Reliability
T1  - Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte
SP  - 748
EP  - 753
VL  - 20
IS  - 4
DO  - 10.1109/TDMR.2020.3033511
ER  - 
@article{
author = "Radonjić, Aleksandar",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/9998",
abstract = "Correcting single and detecting adjacent errors has become important in memory systems using high density DRAM chips. The reason is that, in these systems, the strike of a single energetic particle can upset one or more adjacent bits. In this article, we present a simple solution for this problem based on integer codes capable of correcting single errors and detecting l -bit burst errors confined to a b -bit byte ( 1<l<b ). Unlike the classical approach, the proposed one does not rely on the use of dedicated encoding/decoding hardware. Instead, it uses the processor as both encoder and decoder. The effectiveness of such solution is demonstrated on a theoretical model of an eight-core processor. The obtained results show that it has the potential to be used in future DDR5 systems.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "IEEE Transactions on Device and Materials Reliability",
title = "Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte",
pages = "748-753",
volume = "20",
number = "4",
doi = "10.1109/TDMR.2020.3033511"
}
Radonjić, A. (2020). Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte.
IEEE Transactions on Device and Materials ReliabilityInstitute of Electrical and Electronics Engineers (IEEE)., 20(4), 748-753.
https://doi.org/10.1109/TDMR.2020.3033511
Radonjić A. Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte. IEEE Transactions on Device and Materials Reliability. 2020;20(4):748-753
Radonjić Aleksandar, "Integer Codes Correcting Single Errors and Detecting Burst Errors Within a Byte" 20, no. 4 (2020):748-753,
https://doi.org/10.1109/TDMR.2020.3033511 .
1

Metodologije energetsko – klimatskog planiranja Zapadnog Balkana: najnovija dostignuća iz Republike Srbije i Bosne i Hercegovine

Batas-Bijelić, Ilija; Rajaković, Nikola

(Beograd : Savez energetičara, 2020)

TY  - CONF
AU  - Batas-Bijelić, Ilija
AU  - Rajaković, Nikola
PY  - 2020
UR  - http://www.savezenergeticara.org/images/pdf/ENERGETIKA_Zbornik_Radova_2020.pdf
UR  - https://dais.sanu.ac.rs/123456789/10000
AB  - Just in the immediate neighborhood of European Union (EU), Western Balkan (WB) countries are lagging behind in the energy transition regardless technological advances and policy instruments available. EU recently created a momentum for the energy transition acceleration with the European Green Deal, which is forwarded to the WB through the Energy Community secretariat and in general, the response in the form of National Energy and Climate Plans (NECPs) is expected in the short to midterm. Recently presented the new Republic of Serbia’s Low Carbon Development Strategy with Action plan (LCDSA) will be analyzed, commented and improvements suggested for the acceleration of the energy transition, based on the newest findings from the simulation-based optimization techniques using the sectors coupling approach. Furthermore, integrated assessment modeling techniques (IAM), exploring the climate and energy cross impacts with the more details will be included. The purpose of the research is to provide the decision makers in the WB with the best available insights regarding sustainable energy systems, and citizens of the WB with to benefit from adoption of these strategies.
PB  - Beograd : Savez energetičara
C3  - Zbornik radova = Conference proceedings : XXXV Međunarodno savetovanje u organizaciji Saveza energetičara Energetika 2020 : 24-27. jun 2020. godine, Zlatibor
T1  - Metodologije energetsko – klimatskog planiranja Zapadnog Balkana: najnovija dostignuća iz Republike Srbije i Bosne i Hercegovine
T1  - National energy and climate planning approach for the Western Balkans: newest achievements from Republic Of Serbia and Bosnia And Herzegovina
ER  - 
@conference{
author = "Batas-Bijelić, Ilija and Rajaković, Nikola",
year = "2020",
url = "http://www.savezenergeticara.org/images/pdf/ENERGETIKA_Zbornik_Radova_2020.pdf, https://dais.sanu.ac.rs/123456789/10000",
abstract = "Just in the immediate neighborhood of European Union (EU), Western Balkan (WB) countries are lagging behind in the energy transition regardless technological advances and policy instruments available. EU recently created a momentum for the energy transition acceleration with the European Green Deal, which is forwarded to the WB through the Energy Community secretariat and in general, the response in the form of National Energy and Climate Plans (NECPs) is expected in the short to midterm. Recently presented the new Republic of Serbia’s Low Carbon Development Strategy with Action plan (LCDSA) will be analyzed, commented and improvements suggested for the acceleration of the energy transition, based on the newest findings from the simulation-based optimization techniques using the sectors coupling approach. Furthermore, integrated assessment modeling techniques (IAM), exploring the climate and energy cross impacts with the more details will be included. The purpose of the research is to provide the decision makers in the WB with the best available insights regarding sustainable energy systems, and citizens of the WB with to benefit from adoption of these strategies.",
publisher = "Beograd : Savez energetičara",
journal = "Zbornik radova = Conference proceedings : XXXV Međunarodno savetovanje u organizaciji Saveza energetičara Energetika 2020 : 24-27. jun 2020. godine, Zlatibor",
title = "Metodologije energetsko – klimatskog planiranja Zapadnog Balkana: najnovija dostignuća iz Republike Srbije i Bosne i Hercegovine, National energy and climate planning approach for the Western Balkans: newest achievements from Republic Of Serbia and Bosnia And Herzegovina"
}
Batas-Bijelić, I.,& Rajaković, N. (2020). National energy and climate planning approach for the Western Balkans: newest achievements from Republic Of Serbia and Bosnia And Herzegovina.
Zbornik radova = Conference proceedings : XXXV Međunarodno savetovanje u organizaciji Saveza energetičara Energetika 2020 : 24-27. jun 2020. godine, ZlatiborBeograd : Savez energetičara..
Batas-Bijelić I, Rajaković N. National energy and climate planning approach for the Western Balkans: newest achievements from Republic Of Serbia and Bosnia And Herzegovina. Zbornik radova = Conference proceedings : XXXV Međunarodno savetovanje u organizaciji Saveza energetičara Energetika 2020 : 24-27. jun 2020. godine, Zlatibor. 2020;
Batas-Bijelić Ilija, Rajaković Nikola, "National energy and climate planning approach for the Western Balkans: newest achievements from Republic Of Serbia and Bosnia And Herzegovina" (2020)

Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Dojčinović, Milena; Vujančević, Jelena; Radovanović, Milan

(IEEE, 2020)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
PY  - 2020
UR  - http://dais.sanu.ac.rs/123456789/8965
UR  - https://dais.sanu.ac.rs/123456789/10026
AB  - This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.
PB  - IEEE
C3  - 2020 43rd International Spring Seminar on Electronics Technology (ISSE)
T1  - Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite
SP  - 1
EP  - 5
DO  - 10.1109/ISSE49702.2020.9120967
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Dojčinović, Milena and Vujančević, Jelena and Radovanović, Milan",
year = "2020",
url = "http://dais.sanu.ac.rs/123456789/8965, https://dais.sanu.ac.rs/123456789/10026",
abstract = "This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.",
publisher = "IEEE",
journal = "2020 43rd International Spring Seminar on Electronics Technology (ISSE)",
title = "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite",
pages = "1-5",
doi = "10.1109/ISSE49702.2020.9120967"
}
Nikolić, M. V., Vasiljević, Z. Ž., Dojčinović, M., Vujančević, J.,& Radovanović, M. (2020). Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite.
2020 43rd International Spring Seminar on Electronics Technology (ISSE)IEEE., 1-5.
https://doi.org/10.1109/ISSE49702.2020.9120967
Nikolić MV, Vasiljević ZŽ, Dojčinović M, Vujančević J, Radovanović M. Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite. 2020 43rd International Spring Seminar on Electronics Technology (ISSE). 2020;:1-5
Nikolić Maria Vesna, Vasiljević Zorka Ž., Dojčinović Milena, Vujančević Jelena, Radovanović Milan, "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite" (2020):1-5,
https://doi.org/10.1109/ISSE49702.2020.9120967 .

Porous cordierite-supported polyethyleneimine composites for nickel(II) and cadmium(II) ions removal

Obradović, Nina; Rusmirović, Jelena; Filipović, Suzana; Kosanović, Darko; Marinković, Aleksandar; Radić, Danka; Pavlović, Vladimir

(Desalination Publications, 2020)

TY  - JOUR
AU  - Obradović, Nina
AU  - Rusmirović, Jelena
AU  - Filipović, Suzana
AU  - Kosanović, Darko
AU  - Marinković, Aleksandar
AU  - Radić, Danka
AU  - Pavlović, Vladimir
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/10040
AB  - Industrial/technological growth is directly connected with environmental pollution, but its influence can be minimized through pollution abatement approaches such as the treatment of industrial wastewater. In this study, novel porous amine-functionalized silicate minerals, specifically, cordierite was investigated for the removal of toxic heavy metals from industrial wastewaters. Cordierite supports were synthesized by mixing MgO, Al2O3 , and SiO2 powders in 2:2:5 molar ratios, and mechanically activated via ball milling in ethanol for 10, 40, or 80 min. Pellets were sintered by heating in air at 20°C min-1 to 1,350°C, for 2 h. Porous supports were produced by coarsely crushing the sintered pellets and mixing the crushed and sieved cordierite powder with 20 wt.% of a pore-forming agent, either nanocellulose or yeast. The resulting pellets were sintered by heating at 5°C min-1 to 700°C in air. The synthetic cordierite support was modified by treatment in poly-ethylenimine. Activated supports were then tested for the removal of Ni2+ and Cd2+ ions. The phase composition of the cordierite supports was analyzed by the X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy. Analysis of adsorption isotherms, kinetics, and thermodynamic parameters indicated that adsorption was a spontaneous, endothermic process with a maximum adsorption capacity of 36 mg g-1 for Cd2+ and 43 mg g-1 for Ni2+. This work has shed light on the mechanism of heavy metal removal from the aquatic medium using the novel hybrid functionalized cordierite-based ceramic.
PB  - Desalination Publications
T2  - Desalination and Water Treatment
T1  - Porous cordierite-supported polyethyleneimine composites for nickel(II) and cadmium(II) ions removal
SP  - 283
EP  - 296
VL  - 192
DO  - 10.5004/dwt.2020.25736
ER  - 
@article{
author = "Obradović, Nina and Rusmirović, Jelena and Filipović, Suzana and Kosanović, Darko and Marinković, Aleksandar and Radić, Danka and Pavlović, Vladimir",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/10040",
abstract = "Industrial/technological growth is directly connected with environmental pollution, but its influence can be minimized through pollution abatement approaches such as the treatment of industrial wastewater. In this study, novel porous amine-functionalized silicate minerals, specifically, cordierite was investigated for the removal of toxic heavy metals from industrial wastewaters. Cordierite supports were synthesized by mixing MgO, Al2O3 , and SiO2 powders in 2:2:5 molar ratios, and mechanically activated via ball milling in ethanol for 10, 40, or 80 min. Pellets were sintered by heating in air at 20°C min-1 to 1,350°C, for 2 h. Porous supports were produced by coarsely crushing the sintered pellets and mixing the crushed and sieved cordierite powder with 20 wt.% of a pore-forming agent, either nanocellulose or yeast. The resulting pellets were sintered by heating at 5°C min-1 to 700°C in air. The synthetic cordierite support was modified by treatment in poly-ethylenimine. Activated supports were then tested for the removal of Ni2+ and Cd2+ ions. The phase composition of the cordierite supports was analyzed by the X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy. Analysis of adsorption isotherms, kinetics, and thermodynamic parameters indicated that adsorption was a spontaneous, endothermic process with a maximum adsorption capacity of 36 mg g-1 for Cd2+ and 43 mg g-1 for Ni2+. This work has shed light on the mechanism of heavy metal removal from the aquatic medium using the novel hybrid functionalized cordierite-based ceramic.",
publisher = "Desalination Publications",
journal = "Desalination and Water Treatment",
title = "Porous cordierite-supported polyethyleneimine composites for nickel(II) and cadmium(II) ions removal",
pages = "283-296",
volume = "192",
doi = "10.5004/dwt.2020.25736"
}
Obradović, N., Rusmirović, J., Filipović, S., Kosanović, D., Marinković, A., Radić, D.,& Pavlović, V. (2020). Porous cordierite-supported polyethyleneimine composites for nickel(II) and cadmium(II) ions removal.
Desalination and Water TreatmentDesalination Publications., 192, 283-296.
https://doi.org/10.5004/dwt.2020.25736
Obradović N, Rusmirović J, Filipović S, Kosanović D, Marinković A, Radić D, Pavlović V. Porous cordierite-supported polyethyleneimine composites for nickel(II) and cadmium(II) ions removal. Desalination and Water Treatment. 2020;192:283-296
Obradović Nina, Rusmirović Jelena, Filipović Suzana, Kosanović Darko, Marinković Aleksandar, Radić Danka, Pavlović Vladimir, "Porous cordierite-supported polyethyleneimine composites for nickel(II) and cadmium(II) ions removal" 192 (2020):283-296,
https://doi.org/10.5004/dwt.2020.25736 .

Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect

Dinić, Ivana; Vuković, Marina; Nikolić, Marko G.; Tan, Zhenquan; Milošević, Olivera; Mančić, Lidija

(American Institute of Physics, 2020)

TY  - JOUR
AU  - Dinić, Ivana
AU  - Vuković, Marina
AU  - Nikolić, Marko G.
AU  - Tan, Zhenquan
AU  - Milošević, Olivera
AU  - Mančić, Lidija
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/9450
AB  - The synthesis of lanthanide doped up-converting nanoparticles (UCNPs), whose morphological, structural, and luminescence properties are well suited for applications in optoelectronics, forensics, security, or biomedicine, is of tremendous significance. The most commonly used synthesis method comprises decomposition of organometallic compounds in an oxygen-free environment and subsequent infliction of a biocompatible layer on the particle surface. In this work, hydroxyl-carboxyl (- OH/ - COOH) type of chelating agents (citric acid and sodium citrate) are used in situ for the solvothermal synthesis of hydrophilic NaY0.5Gd0.3F4:Yb,Er UCNPs from rare earth nitrate salts and different fluoride sources (NaF, NH4F, and NH4HF2). X-ray powder diffraction showed crystallization of cubic and hexagonal NaY0.5Gd0.3F4:Yb,Er phases in nano- and micro-sized particles, respectively. The content of the hexagonal phase prevails in the samples obtained when Na-citrate is used, while the size and shape of the synthesized mesocrystals are affected by the choice of fluoride source used for precipitation. All particles are functionalized with citrate ligands and emit intense green light at 519 nm and 539 nm (2H11/2, 4S3/2 → 4I15/2) under near infrared light. The intensity of this emission is distressed by the change in the origin of phonon energy of the host matrix revealed by the change in the number of the excitation photons absorbed per emitted photon.
PB  - American Institute of Physics
T2  - The Journal of Chemical Physics
T1  - Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect
SP  - 084706
VL  - 153
IS  - 8
DO  - 10.1063/5.0016559
ER  - 
@article{
author = "Dinić, Ivana and Vuković, Marina and Nikolić, Marko G. and Tan, Zhenquan and Milošević, Olivera and Mančić, Lidija",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/9450",
abstract = "The synthesis of lanthanide doped up-converting nanoparticles (UCNPs), whose morphological, structural, and luminescence properties are well suited for applications in optoelectronics, forensics, security, or biomedicine, is of tremendous significance. The most commonly used synthesis method comprises decomposition of organometallic compounds in an oxygen-free environment and subsequent infliction of a biocompatible layer on the particle surface. In this work, hydroxyl-carboxyl (- OH/ - COOH) type of chelating agents (citric acid and sodium citrate) are used in situ for the solvothermal synthesis of hydrophilic NaY0.5Gd0.3F4:Yb,Er UCNPs from rare earth nitrate salts and different fluoride sources (NaF, NH4F, and NH4HF2). X-ray powder diffraction showed crystallization of cubic and hexagonal NaY0.5Gd0.3F4:Yb,Er phases in nano- and micro-sized particles, respectively. The content of the hexagonal phase prevails in the samples obtained when Na-citrate is used, while the size and shape of the synthesized mesocrystals are affected by the choice of fluoride source used for precipitation. All particles are functionalized with citrate ligands and emit intense green light at 519 nm and 539 nm (2H11/2, 4S3/2 → 4I15/2) under near infrared light. The intensity of this emission is distressed by the change in the origin of phonon energy of the host matrix revealed by the change in the number of the excitation photons absorbed per emitted photon.",
publisher = "American Institute of Physics",
journal = "The Journal of Chemical Physics",
title = "Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect",
pages = "084706",
volume = "153",
number = "8",
doi = "10.1063/5.0016559"
}
Dinić, I., Vuković, M., Nikolić, M. G., Tan, Z., Milošević, O.,& Mančić, L. (2020). Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect.
The Journal of Chemical PhysicsAmerican Institute of Physics., 153(8), 084706.
https://doi.org/10.1063/5.0016559
Dinić I, Vuković M, Nikolić MG, Tan Z, Milošević O, Mančić L. Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect. The Journal of Chemical Physics. 2020;153(8):084706
Dinić Ivana, Vuković Marina, Nikolić Marko G., Tan Zhenquan, Milošević Olivera, Mančić Lidija, "Up-converting nanoparticles synthesis using hydroxyl-carboxyl chelating agents: Fluoride source effect" 153, no. 8 (2020):084706,
https://doi.org/10.1063/5.0016559 .
1
1
1

Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite

Nikolić, Maria Vesna; Vasiljević, Zorka Ž.; Dojčinović, Milena P.; Vujančević, Jelena; Radovanović, Milan

(IEEE, 2020)

TY  - CONF
AU  - Nikolić, Maria Vesna
AU  - Vasiljević, Zorka Ž.
AU  - Dojčinović, Milena P.
AU  - Vujančević, Jelena
AU  - Radovanović, Milan
PY  - 2020
UR  - http://dais.sanu.ac.rs/123456789/8965
AB  - This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.
PB  - IEEE
C3  - 2020 43rd International Spring Seminar on Electronics Technology (ISSE)
T1  - Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite
SP  - 1
EP  - 5
DO  - 10.1109/ISSE49702.2020.9120967
ER  - 
@conference{
author = "Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Dojčinović, Milena P. and Vujančević, Jelena and Radovanović, Milan",
year = "2020",
url = "http://dais.sanu.ac.rs/123456789/8965",
abstract = "This work deals with our continued research of oxide materials for potential application in gas/humidity sensing. We have made thick film samples using iron manganite powder synthesized by a sol-gel combustion method with a net-like structure, by screen printing on alumina substrate with PdAg interdigitated electrodes. The thick film samples were fired at two temperatures 600 and 800°C. The powder morphology was retained and only the organic compounds in the paste were burnt-out at 600°C, while at 800°C the thick film surface morphology was different where grain growth and individual particles can be observed. We measured complex impedance in a temperature and humidity chamber at room temperature (25°C) in the relative humidity range 30 – 90 % and frequency 100 Hz - 1 MHz. The thick film surface morphology has a significant influence on the effect of humidity on complex impedance. The complex impedance of thick films fired at 600°C was high and did not decrease noticeably with increase in relative humidity (RH), except for RH 80 and 90%, while thick film samples fired at 800°C had an overall lower impedance that reduced more noticeably with increase in RH 40–70% and even more for RH 80 and 90%.",
publisher = "IEEE",
journal = "2020 43rd International Spring Seminar on Electronics Technology (ISSE)",
title = "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite",
pages = "1-5",
doi = "10.1109/ISSE49702.2020.9120967"
}
Nikolić, M. V., Vasiljević, Z. Ž., Dojčinović, M. P., Vujančević, J.,& Radovanović, M. (2020). Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite.
2020 43rd International Spring Seminar on Electronics Technology (ISSE)IEEE., 1-5.
https://doi.org/10.1109/ISSE49702.2020.9120967
Nikolić MV, Vasiljević ZŽ, Dojčinović MP, Vujančević J, Radovanović M. Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite. 2020 43rd International Spring Seminar on Electronics Technology (ISSE). 2020;:1-5
Nikolić Maria Vesna, Vasiljević Zorka Ž., Dojčinović Milena P., Vujančević Jelena, Radovanović Milan, "Impact of Microstructure on Humidity Influence on Complex Impedance of Iron Manganite" (2020):1-5,
https://doi.org/10.1109/ISSE49702.2020.9120967 .

6 Decades Research on Photovoltaic Technologies and Characterization in Republic of Serbia

Batas-Bijelić, Ilija

(WIP GmbH & Co Planungs-KG, 2020)

TY  - CONF
AU  - Batas-Bijelić, Ilija
PY  - 2020
UR  - https://www.eupvsec-planner.com/presentations/c49326/6_decades_research_on_photovoltaic_technologies_and_characterization_in_republic_of_serbia.htm
UR  - https://dais.sanu.ac.rs/123456789/9999
AB  - It is known that solar photovoltaic devices age well, but the research in the durability and derating factor, important for their economy and energy rate of return, has not been done for the more than 35 year old devices. First silicon photovoltaic cells were produced in 1960’s in Republic of Serbia (former Socialist Federal Republic of Yugoslavia) with 8% efficiency is still functional. These results were comparable to the state of the art efficiencies of that time. With new laboratory equipment available from recent, these cells produced in Republic of Serbia will be therefore characterized again to test if they satisfy the expected performance threshold from the existing literature. The effects of degradation will be explored and presented. The results of modern characterization of elder photovoltaic cells will be of significance for the further research on this topic in future.
PB  - WIP GmbH & Co Planungs-KG
C3  - EU PVSEC 2020, 7 - 11 September 2020
T1  - 6 Decades Research on Photovoltaic Technologies and Characterization in Republic of Serbia
ER  - 
@conference{
author = "Batas-Bijelić, Ilija",
year = "2020",
url = "https://www.eupvsec-planner.com/presentations/c49326/6_decades_research_on_photovoltaic_technologies_and_characterization_in_republic_of_serbia.htm, https://dais.sanu.ac.rs/123456789/9999",
abstract = "It is known that solar photovoltaic devices age well, but the research in the durability and derating factor, important for their economy and energy rate of return, has not been done for the more than 35 year old devices. First silicon photovoltaic cells were produced in 1960’s in Republic of Serbia (former Socialist Federal Republic of Yugoslavia) with 8% efficiency is still functional. These results were comparable to the state of the art efficiencies of that time. With new laboratory equipment available from recent, these cells produced in Republic of Serbia will be therefore characterized again to test if they satisfy the expected performance threshold from the existing literature. The effects of degradation will be explored and presented. The results of modern characterization of elder photovoltaic cells will be of significance for the further research on this topic in future.",
publisher = "WIP GmbH & Co Planungs-KG",
journal = "EU PVSEC 2020, 7 - 11 September 2020",
title = "6 Decades Research on Photovoltaic Technologies and Characterization in Republic of Serbia"
}
Batas-Bijelić, I. (2020). 6 Decades Research on Photovoltaic Technologies and Characterization in Republic of Serbia.
EU PVSEC 2020, 7 - 11 September 2020WIP GmbH & Co Planungs-KG..
Batas-Bijelić I. 6 Decades Research on Photovoltaic Technologies and Characterization in Republic of Serbia. EU PVSEC 2020, 7 - 11 September 2020. 2020;
Batas-Bijelić Ilija, "6 Decades Research on Photovoltaic Technologies and Characterization in Republic of Serbia" (2020)