Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes

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info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45001/RS//

Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes (en)
Наноструктурни функционални и композитни материјали у каталитичким и сорпционим процесима (sr)
Nanostrukturni funkcionalni i kompozitni materijali u katalitičkim i sorpcionim procesima (sr_RS)
Authors

Publications

Valorization of walnut shell ash as a catalyst for biodiesel production

Miladinović, Marija R.; Zdujić, Miodrag; Veljović, Đorđe; Krstić, Jugoslav B.; Banković Ilić, Ivana B.; Veljković, Vlada B.; Stamenković, Olivera S.

(Elsevier, 2020)

TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Zdujić, Miodrag
AU  - Veljović, Đorđe
AU  - Krstić, Jugoslav B.
AU  - Banković Ilić, Ivana B.
AU  - Veljković, Vlada B.
AU  - Stamenković, Olivera S.
PY  - 2020
UR  - http://cer.ihtm.bg.ac.rs/handle/123456789/3217
UR  - http://dais.sanu.ac.rs/123456789/6717
AB  - The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.
PB  - Elsevier
T2  - Renewable Energy
T1  - Valorization of walnut shell ash as a catalyst for biodiesel production
SP  - 1033
EP  - 1043
VL  - 147
DO  - 10.1016/j.renene.2019.09.056
ER  - 
@article{
author = "Miladinović, Marija R. and Zdujić, Miodrag and Veljović, Đorđe and Krstić, Jugoslav B. and Banković Ilić, Ivana B. and Veljković, Vlada B. and Stamenković, Olivera S.",
year = "2020",
url = "http://cer.ihtm.bg.ac.rs/handle/123456789/3217, http://dais.sanu.ac.rs/123456789/6717",
abstract = "The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.",
publisher = "Elsevier",
journal = "Renewable Energy",
title = "Valorization of walnut shell ash as a catalyst for biodiesel production",
pages = "1033-1043",
volume = "147",
doi = "10.1016/j.renene.2019.09.056"
}
Miladinović, M. R., Zdujić, M., Veljović, Đ., Krstić, J. B., Banković Ilić, I. B., Veljković, V. B.,& Stamenković, O. S. (2020). Valorization of walnut shell ash as a catalyst for biodiesel production.
Renewable Energy
Elsevier., 147, 1033-1043.
https://doi.org/10.1016/j.renene.2019.09.056
Miladinović MR, Zdujić M, Veljović Đ, Krstić JB, Banković Ilić IB, Veljković VB, Stamenković OS. Valorization of walnut shell ash as a catalyst for biodiesel production. Renewable Energy. 2020;147:1033-1043
Miladinović Marija R., Zdujić Miodrag, Veljović Đorđe, Krstić Jugoslav B., Banković Ilić Ivana B., Veljković Vlada B., Stamenković Olivera S., "Valorization of walnut shell ash as a catalyst for biodiesel production" Renewable Energy, 147 (2020):1033-1043,
https://doi.org/10.1016/j.renene.2019.09.056 .
22
11
26

Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing

Nikolić, Maria Vesna; Krstić, Jugoslav; Labus, Nebojša; Luković, Miloljub; Dojčinović, Milena; Radovanović, Milan; Tadić, Nenad

(Elsevier, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Labus, Nebojša
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Radovanović, Milan
AU  - Tadić, Nenad
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/10036
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.
PB  - Elsevier
T2  - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
SP  - 114547
VL  - 257
DO  - 10.1016/j.mseb.2020.114547
ER  - 
@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav and Labus, Nebojša and Luković, Miloljub and Dojčinović, Milena and Radovanović, Milan and Tadić, Nenad",
year = "2020",
url = "https://dais.sanu.ac.rs/123456789/10036",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.",
publisher = "Elsevier",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
pages = "114547",
volume = "257",
doi = "10.1016/j.mseb.2020.114547"
}
Nikolić, M. V., Krstić, J., Labus, N., Luković, M., Dojčinović, M., Radovanović, M.,& Tadić, N. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing.
Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Elsevier., 257, 114547.
https://doi.org/10.1016/j.mseb.2020.114547
Nikolić MV, Krstić J, Labus N, Luković M, Dojčinović M, Radovanović M, Tadić N. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2020;257:114547
Nikolić Maria Vesna, Krstić Jugoslav, Labus Nebojša, Luković Miloljub, Dojčinović Milena, Radovanović Milan, Tadić Nenad, "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 257 (2020):114547,
https://doi.org/10.1016/j.mseb.2020.114547 .
2
1
1

Valorization of walnut shell ash as a catalyst for biodiesel production

Miladinović, Marija R.; Zdujić, Miodrag; Veljović, Đorđe; Krstić, Jugoslav B.; Banković Ilić, Ivana B.; Veljković, Vlada B.; Stamenković, Olivera S.

(Elsevier, 2020)

TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Zdujić, Miodrag
AU  - Veljović, Đorđe
AU  - Krstić, Jugoslav B.
AU  - Banković Ilić, Ivana B.
AU  - Veljković, Vlada B.
AU  - Stamenković, Olivera S.
PY  - 2020
UR  - http://dais.sanu.ac.rs/123456789/6903
AB  - The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.
PB  - Elsevier
T2  - Renewable Energy
T1  - Valorization of walnut shell ash as a catalyst for biodiesel production
SP  - 1033
EP  - 1043
VL  - 147
DO  - 10.1016/j.renene.2019.09.056
ER  - 
@article{
author = "Miladinović, Marija R. and Zdujić, Miodrag and Veljović, Đorđe and Krstić, Jugoslav B. and Banković Ilić, Ivana B. and Veljković, Vlada B. and Stamenković, Olivera S.",
year = "2020",
url = "http://dais.sanu.ac.rs/123456789/6903",
abstract = "The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 °C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.",
publisher = "Elsevier",
journal = "Renewable Energy",
title = "Valorization of walnut shell ash as a catalyst for biodiesel production",
pages = "1033-1043",
volume = "147",
doi = "10.1016/j.renene.2019.09.056"
}
Miladinović, M. R., Zdujić, M., Veljović, Đ., Krstić, J. B., Banković Ilić, I. B., Veljković, V. B.,& Stamenković, O. S. (2020). Valorization of walnut shell ash as a catalyst for biodiesel production.
Renewable Energy
Elsevier., 147, 1033-1043.
https://doi.org/10.1016/j.renene.2019.09.056
Miladinović MR, Zdujić M, Veljović Đ, Krstić JB, Banković Ilić IB, Veljković VB, Stamenković OS. Valorization of walnut shell ash as a catalyst for biodiesel production. Renewable Energy. 2020;147:1033-1043
Miladinović Marija R., Zdujić Miodrag, Veljović Đorđe, Krstić Jugoslav B., Banković Ilić Ivana B., Veljković Vlada B., Stamenković Olivera S., "Valorization of walnut shell ash as a catalyst for biodiesel production" Renewable Energy, 147 (2020):1033-1043,
https://doi.org/10.1016/j.renene.2019.09.056 .
22
11
26

Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing

Nikolić, Maria Vesna; Krstić, Jugoslav; Labus, Nebojša; Luković, Miloljub; Dojčinović, Milena; Radovanović, Milan; Tadić, Nenad

(Elsevier, 2020)

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Krstić, Jugoslav
AU  - Labus, Nebojša
AU  - Luković, Miloljub
AU  - Dojčinović, Milena
AU  - Radovanović, Milan
AU  - Tadić, Nenad
PY  - 2020
UR  - http://dais.sanu.ac.rs/123456789/8950
AB  - Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.
PB  - Elsevier
T2  - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
T1  - Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing
SP  - 114547
VL  - 257
DO  - 10.1016/j.mseb.2020.114547
ER  - 
@article{
author = "Nikolić, Maria Vesna and Krstić, Jugoslav and Labus, Nebojša and Luković, Miloljub and Dojčinović, Milena and Radovanović, Milan and Tadić, Nenad",
year = "2020",
url = "http://dais.sanu.ac.rs/123456789/8950",
abstract = "Iron manganite (FeMnO3) powder with a cubic (bixbyite,−Ia3) crystal structure was obtained by a solid statereaction. Thick film paste (powder+organic vehicles) was screen printed on alumina substrate with test interdigitatedPdAg electrodes. Significant porosity (60.6%) composed of macropores (larger than 100 nm) wasdetermined by Hg porosimetry, changing only slightly from the first extrusion run indicating a stable poresystem. Hg porosimetry evaluation of thick film samples enabled estimation of true textural parameters of thethick film compared to powder. Impedance response of the thick film sensor was monitored in a humiditychamber in the relative humidity (RH) range 30–90%, at room temperature (25 °C) and frequency range from42 Hz to 1 MHz. At 100 Hz the impedance reduced from 10.41 MΩ for RH 30% to 0.68 MΩ for RH 90%. Analysisof complex impedance using an equivalent circuit showed the dominant influence of grain boundaries. Thesensor response and recovery was fast (several seconds) and a relatively low hysteresis value of 2.8% wasobtained.",
publisher = "Elsevier",
journal = "Materials Science and Engineering B: Solid-State Materials for Advanced Technology",
title = "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing",
pages = "114547",
volume = "257",
doi = "10.1016/j.mseb.2020.114547"
}
Nikolić, M. V., Krstić, J., Labus, N., Luković, M., Dojčinović, M., Radovanović, M.,& Tadić, N. (2020). Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing.
Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Elsevier., 257, 114547.
https://doi.org/10.1016/j.mseb.2020.114547
Nikolić MV, Krstić J, Labus N, Luković M, Dojčinović M, Radovanović M, Tadić N. Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing. Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2020;257:114547
Nikolić Maria Vesna, Krstić Jugoslav, Labus Nebojša, Luković Miloljub, Dojčinović Milena, Radovanović Milan, Tadić Nenad, "Structural, morphological and textural properties of iron manganite (FeMnO3) thick films applied for humidity sensing" Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 257 (2020):114547,
https://doi.org/10.1016/j.mseb.2020.114547 .
2
1
1

Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization

Dodevski, Vladimir; Pagnacco, Maja C.; Radović, Ivana; Rosić, Milena; Janković, Bojan; Stojmenović, Marija; Mitić, Vojislav V.

(Elsevier, 2020)

TY  - JOUR
AU  - Dodevski, Vladimir
AU  - Pagnacco, Maja C.
AU  - Radović, Ivana
AU  - Rosić, Milena
AU  - Janković, Bojan
AU  - Stojmenović, Marija
AU  - Mitić, Vojislav V.
PY  - 2020
UR  - http://dais.sanu.ac.rs/123456789/8726
AB  - The aim of this research was to obtain a carbon solid residue by the carbonization process of biomass in an inert atmosphere which, through physical activation and chemical treatment (using TEOS - tetraethyl orthosilicate) would allow creation of highly porous and spatially distinct ordered bio-SiC ceramics. The results of carbonization experiments at several operating temperatures and activation of carbons with multiple-cycle treatments TEOS clearly showed the possibility of obtaining SiC nano-structures, after performing the carbothermal reduction at 1400 °C. The increase in the activation temperature and the duration time starts the development of the SiC particles inside the porous structure. The XRPD analysis showed that the major SiC polytype has cubic SiC (β-SiC) structure and remainder is hexagonal SiC polytypic (α-SiC) structure. It was established that the carbons obtained from carbonization of the Platanus orientalis L. plane tree fruit (PTF) precursor and activated at 850 °C with longer holding times (1 and 2 h) exhibit β-SiC (cubic) nano-wires. A possible nano-wires increment mechanism was suggested. The obtained results represent significant contribution in understanding the process as well as the main characteristics of SiC nano-materials and their possible applications.
PB  - Elsevier
T2  - Materials Chemistry and Physics
T1  - Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization
SP  - 122768
VL  - 245
DO  - 10.1016/j.matchemphys.2020.122768
ER  - 
@article{
author = "Dodevski, Vladimir and Pagnacco, Maja C. and Radović, Ivana and Rosić, Milena and Janković, Bojan and Stojmenović, Marija and Mitić, Vojislav V.",
year = "2020",
url = "http://dais.sanu.ac.rs/123456789/8726",
abstract = "The aim of this research was to obtain a carbon solid residue by the carbonization process of biomass in an inert atmosphere which, through physical activation and chemical treatment (using TEOS - tetraethyl orthosilicate) would allow creation of highly porous and spatially distinct ordered bio-SiC ceramics. The results of carbonization experiments at several operating temperatures and activation of carbons with multiple-cycle treatments TEOS clearly showed the possibility of obtaining SiC nano-structures, after performing the carbothermal reduction at 1400 °C. The increase in the activation temperature and the duration time starts the development of the SiC particles inside the porous structure. The XRPD analysis showed that the major SiC polytype has cubic SiC (β-SiC) structure and remainder is hexagonal SiC polytypic (α-SiC) structure. It was established that the carbons obtained from carbonization of the Platanus orientalis L. plane tree fruit (PTF) precursor and activated at 850 °C with longer holding times (1 and 2 h) exhibit β-SiC (cubic) nano-wires. A possible nano-wires increment mechanism was suggested. The obtained results represent significant contribution in understanding the process as well as the main characteristics of SiC nano-materials and their possible applications.",
publisher = "Elsevier",
journal = "Materials Chemistry and Physics",
title = "Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization",
pages = "122768",
volume = "245",
doi = "10.1016/j.matchemphys.2020.122768"
}
Dodevski, V., Pagnacco, M. C., Radović, I., Rosić, M., Janković, B., Stojmenović, M.,& Mitić, V. V. (2020). Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization.
Materials Chemistry and Physics
Elsevier., 245, 122768.
https://doi.org/10.1016/j.matchemphys.2020.122768
Dodevski V, Pagnacco MC, Radović I, Rosić M, Janković B, Stojmenović M, Mitić VV. Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization. Materials Chemistry and Physics. 2020;245:122768
Dodevski Vladimir, Pagnacco Maja C., Radović Ivana, Rosić Milena, Janković Bojan, Stojmenović Marija, Mitić Vojislav V., "Characterization of silicon carbide ceramics obtained from porous carbon structure achieved by plant carbonization" Materials Chemistry and Physics, 245 (2020):122768,
https://doi.org/10.1016/j.matchemphys.2020.122768 .
1
3
1
2

Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites

Stefanović, Ivan S.; Dostanić, Jasmina; Lončarević, Davor; Vasiljević Radović, Dana; Ostojić, Sanja; Marković, Smilja; Pergal, Marija V.

(Association of the Chemical Engineers of Serbia, 2019)

TY  - JOUR
AU  - Stefanović, Ivan S.
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
AU  - Vasiljević Radović, Dana
AU  - Ostojić, Sanja
AU  - Marković, Smilja
AU  - Pergal, Marija V.
PY  - 2019
UR  - http://dais.sanu.ac.rs/123456789/5761
AB  - This work is focused on preparation of poly(urethane-siloxane)/titanium-dioxide nanocomposites (PUSNs) with enhanced features. PUSNs were prepared by the in situ polymerization reaction using titanium-dioxide as a nano-filler in different amounts (1, 2, 3 and 5 wt.%) with respect to the poly(urethane-siloxane) (PUS) matrix. PUS copolymer was based on α,ω-dihy-droxy-ethoxypropyl-poly(dimethylsiloxane), 4,4’-methylenediphenyldiisocyanate and 1,4-bu-tanediole. In order to investigate the influence of TiO 2 content on the structure, UV resistance, thermal properties, hydrophobicity and morphology of the prepared PUSNs, FTIR spectroscopy, UV-Vis diffuse-reflectance spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), contact angle measurements, surface free energy (SFE) analysis, water absorption, scanning electron microscopy (SEM) and atomic force microscopy (AFM) were performed. The PUSNs showed excellent UV resistance, high hydrophobicity, low surface free energy and also higher thermal stability and rougher surface and cross-section relief structure as compared to the pure PUS copolymer. Based on the obtained results it can be concluded that prepared PUSNs could be potentially used as protective coatings. © 2019, Association of Chemists and Chemical Engineers of Serbia. All rights reserved.
PB  - Association of the Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites
SP  - 13
EP  - 24
VL  - 73
IS  - 1
DO  - 10.2298/HEMIND180530002S
ER  - 
@article{
author = "Stefanović, Ivan S. and Dostanić, Jasmina and Lončarević, Davor and Vasiljević Radović, Dana and Ostojić, Sanja and Marković, Smilja and Pergal, Marija V.",
year = "2019",
url = "http://dais.sanu.ac.rs/123456789/5761",
abstract = "This work is focused on preparation of poly(urethane-siloxane)/titanium-dioxide nanocomposites (PUSNs) with enhanced features. PUSNs were prepared by the in situ polymerization reaction using titanium-dioxide as a nano-filler in different amounts (1, 2, 3 and 5 wt.%) with respect to the poly(urethane-siloxane) (PUS) matrix. PUS copolymer was based on α,ω-dihy-droxy-ethoxypropyl-poly(dimethylsiloxane), 4,4’-methylenediphenyldiisocyanate and 1,4-bu-tanediole. In order to investigate the influence of TiO 2 content on the structure, UV resistance, thermal properties, hydrophobicity and morphology of the prepared PUSNs, FTIR spectroscopy, UV-Vis diffuse-reflectance spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), contact angle measurements, surface free energy (SFE) analysis, water absorption, scanning electron microscopy (SEM) and atomic force microscopy (AFM) were performed. The PUSNs showed excellent UV resistance, high hydrophobicity, low surface free energy and also higher thermal stability and rougher surface and cross-section relief structure as compared to the pure PUS copolymer. Based on the obtained results it can be concluded that prepared PUSNs could be potentially used as protective coatings. © 2019, Association of Chemists and Chemical Engineers of Serbia. All rights reserved.",
publisher = "Association of the Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites",
pages = "13-24",
volume = "73",
number = "1",
doi = "10.2298/HEMIND180530002S"
}
Stefanović, I. S., Dostanić, J., Lončarević, D., Vasiljević Radović, D., Ostojić, S., Marković, S.,& Pergal, M. V. (2019). Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites.
Hemijska industrija
Association of the Chemical Engineers of Serbia., 73(1), 13-24.
https://doi.org/10.2298/HEMIND180530002S
Stefanović IS, Dostanić J, Lončarević D, Vasiljević Radović D, Ostojić S, Marković S, Pergal MV. Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites. Hemijska industrija. 2019;73(1):13-24
Stefanović Ivan S., Dostanić Jasmina, Lončarević Davor, Vasiljević Radović Dana, Ostojić Sanja, Marković Smilja, Pergal Marija V., "Preparation and characterization of poly(Urethane-siloxane)/titanium-dioxide nanocomposites" Hemijska industrija, 73, no. 1 (2019):13-24,
https://doi.org/10.2298/HEMIND180530002S .
3
3
3

Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent

Todorović, Zoran B.; Troter, Dragan Z.; Đokić Stojanović, Dušica R.; Veličković, Ana V.; Avramović, Jelena M.; Stamenković, Olivera S.; Veselinović, Ljiljana; Veljković, Vlada B.

(Elsevier, 2019)

TY  - JOUR
AU  - Todorović, Zoran B.
AU  - Troter, Dragan Z.
AU  - Đokić Stojanović, Dušica R.
AU  - Veličković, Ana V.
AU  - Avramović, Jelena M.
AU  - Stamenković, Olivera S.
AU  - Veselinović, Ljiljana
AU  - Veljković, Vlada B.
PY  - 2019
UR  - http://www.sciencedirect.com/science/article/pii/S0016236118317691
UR  - http://dais.sanu.ac.rs/123456789/4069
AB  - Crude biodiesel was proven as a cosolvent in the methanolysis of sunflower oil catalyzed by calcined CaO. This reaction was modeled and optimized statistically in terms of reaction temperature (33.2–66.8 °C), methanol-to-oil molar ratio (3.5:1–8.5:1) and catalyst concentration (0.219–1.065 mol/L). The cosolvent loading was 10 wt% (based on oil weight). The optimum reaction conditions were found to be: the methanol-to-oil molar ratio of 7.1:1, the catalyst concentration of 0.74 mol/L and the reaction temperature 52 °C, ensuring the best esters content of 99.8%, for the reaction time of 1.5 h, which is close to the reported experimental value of 98.9%. Also, the used catalyst was recycled with no additional treatment in the further four consecutive cycles under the following reaction conditions: methanol-to-oil molar ratio 6:1, the concentration of catalyst 0.642 mol/L (only in the first run), the reaction temperature 50 °C, cosolvent-crude biodiesel loading 10 wt% to oil weight. The second recycling reaction provided the highest FAME content of 97.7% after 5 h.
PB  - Elsevier
T2  - Fuel
T1  - Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent
SP  - 903
EP  - 910
VL  - 237
DO  - 10.1016/j.fuel.2018.10.056
ER  - 
@article{
author = "Todorović, Zoran B. and Troter, Dragan Z. and Đokić Stojanović, Dušica R. and Veličković, Ana V. and Avramović, Jelena M. and Stamenković, Olivera S. and Veselinović, Ljiljana and Veljković, Vlada B.",
year = "2019",
url = "http://www.sciencedirect.com/science/article/pii/S0016236118317691, http://dais.sanu.ac.rs/123456789/4069",
abstract = "Crude biodiesel was proven as a cosolvent in the methanolysis of sunflower oil catalyzed by calcined CaO. This reaction was modeled and optimized statistically in terms of reaction temperature (33.2–66.8 °C), methanol-to-oil molar ratio (3.5:1–8.5:1) and catalyst concentration (0.219–1.065 mol/L). The cosolvent loading was 10 wt% (based on oil weight). The optimum reaction conditions were found to be: the methanol-to-oil molar ratio of 7.1:1, the catalyst concentration of 0.74 mol/L and the reaction temperature 52 °C, ensuring the best esters content of 99.8%, for the reaction time of 1.5 h, which is close to the reported experimental value of 98.9%. Also, the used catalyst was recycled with no additional treatment in the further four consecutive cycles under the following reaction conditions: methanol-to-oil molar ratio 6:1, the concentration of catalyst 0.642 mol/L (only in the first run), the reaction temperature 50 °C, cosolvent-crude biodiesel loading 10 wt% to oil weight. The second recycling reaction provided the highest FAME content of 97.7% after 5 h.",
publisher = "Elsevier",
journal = "Fuel",
title = "Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent",
pages = "903-910",
volume = "237",
doi = "10.1016/j.fuel.2018.10.056"
}
Todorović, Z. B., Troter, D. Z., Đokić Stojanović, D. R., Veličković, A. V., Avramović, J. M., Stamenković, O. S., Veselinović, L.,& Veljković, V. B. (2019). Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent.
Fuel
Elsevier., 237, 903-910.
https://doi.org/10.1016/j.fuel.2018.10.056
Todorović ZB, Troter DZ, Đokić Stojanović DR, Veličković AV, Avramović JM, Stamenković OS, Veselinović L, Veljković VB. Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent. Fuel. 2019;237:903-910
Todorović Zoran B., Troter Dragan Z., Đokić Stojanović Dušica R., Veličković Ana V., Avramović Jelena M., Stamenković Olivera S., Veselinović Ljiljana, Veljković Vlada B., "Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent" Fuel, 237 (2019):903-910,
https://doi.org/10.1016/j.fuel.2018.10.056 .
20
16
18

Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent

Todorović, Zoran B.; Troter, Dragan Z.; Đokić-Stojanović, Dušica R.; Veličković, Ana V.; Avramović, Jelena M.; Stamenković, Olivera S.; Veselinović, Ljiljana; Veljković, Vlada B.

(Elsevier, 2019)

TY  - JOUR
AU  - Todorović, Zoran B.
AU  - Troter, Dragan Z.
AU  - Đokić-Stojanović, Dušica R.
AU  - Veličković, Ana V.
AU  - Avramović, Jelena M.
AU  - Stamenković, Olivera S.
AU  - Veselinović, Ljiljana
AU  - Veljković, Vlada B.
PY  - 2019
UR  - http://www.sciencedirect.com/science/article/pii/S0016236118317691
UR  - http://dais.sanu.ac.rs/123456789/4070
AB  - Crude biodiesel was proven as a cosolvent in the methanolysis of sunflower oil catalyzed by calcined CaO. This reaction was modeled and optimized statistically in terms of reaction temperature (33.2–66.8 °C), methanol-to-oil molar ratio (3.5:1–8.5:1) and catalyst concentration (0.219–1.065 mol/L). The cosolvent loading was 10 wt% (based on oil weight). The optimum reaction conditions were found to be: the methanol-to-oil molar ratio of 7.1:1, the catalyst concentration of 0.74 mol/L and the reaction temperature 52 °C, ensuring the best esters content of 99.8%, for the reaction time of 1.5 h, which is close to the reported experimental value of 98.9%. Also, the used catalyst was recycled with no additional treatment in the further four consecutive cycles under the following reaction conditions: methanol-to-oil molar ratio 6:1, the concentration of catalyst 0.642 mol/L (only in the first run), the reaction temperature 50 °C, cosolvent-crude biodiesel loading 10 wt% to oil weight. The second recycling reaction provided the highest FAME content of 97.7% after 5 h.
PB  - Elsevier
T2  - Fuel
T1  - Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent
SP  - 903
EP  - 910
VL  - 237
DO  - 10.1016/j.fuel.2018.10.056
ER  - 
@article{
author = "Todorović, Zoran B. and Troter, Dragan Z. and Đokić-Stojanović, Dušica R. and Veličković, Ana V. and Avramović, Jelena M. and Stamenković, Olivera S. and Veselinović, Ljiljana and Veljković, Vlada B.",
year = "2019",
url = "http://www.sciencedirect.com/science/article/pii/S0016236118317691, http://dais.sanu.ac.rs/123456789/4070",
abstract = "Crude biodiesel was proven as a cosolvent in the methanolysis of sunflower oil catalyzed by calcined CaO. This reaction was modeled and optimized statistically in terms of reaction temperature (33.2–66.8 °C), methanol-to-oil molar ratio (3.5:1–8.5:1) and catalyst concentration (0.219–1.065 mol/L). The cosolvent loading was 10 wt% (based on oil weight). The optimum reaction conditions were found to be: the methanol-to-oil molar ratio of 7.1:1, the catalyst concentration of 0.74 mol/L and the reaction temperature 52 °C, ensuring the best esters content of 99.8%, for the reaction time of 1.5 h, which is close to the reported experimental value of 98.9%. Also, the used catalyst was recycled with no additional treatment in the further four consecutive cycles under the following reaction conditions: methanol-to-oil molar ratio 6:1, the concentration of catalyst 0.642 mol/L (only in the first run), the reaction temperature 50 °C, cosolvent-crude biodiesel loading 10 wt% to oil weight. The second recycling reaction provided the highest FAME content of 97.7% after 5 h.",
publisher = "Elsevier",
journal = "Fuel",
title = "Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent",
pages = "903-910",
volume = "237",
doi = "10.1016/j.fuel.2018.10.056"
}
Todorović, Z. B., Troter, D. Z., Đokić-Stojanović, D. R., Veličković, A. V., Avramović, J. M., Stamenković, O. S., Veselinović, L.,& Veljković, V. B. (2019). Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent.
Fuel
Elsevier., 237, 903-910.
https://doi.org/10.1016/j.fuel.2018.10.056
Todorović ZB, Troter DZ, Đokić-Stojanović DR, Veličković AV, Avramović JM, Stamenković OS, Veselinović L, Veljković VB. Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent. Fuel. 2019;237:903-910
Todorović Zoran B., Troter Dragan Z., Đokić-Stojanović Dušica R., Veličković Ana V., Avramović Jelena M., Stamenković Olivera S., Veselinović Ljiljana, Veljković Vlada B., "Optimization of CaO-catalyzed sunflower oil methanolysis with crude biodiesel as a cosolvent" Fuel, 237 (2019):903-910,
https://doi.org/10.1016/j.fuel.2018.10.056 .
20
16
18

Supplementary data for the article: Todorović, Zoran B., Dragan Z. Troter, Dušica R. Đokić-Stojanović, Ana V. Veličković, Jelena M. Avramović, Olivera S. Stamenković, Ljiljana M. Veselinović, and Vlada B. Veljković. 2019. “Optimization of CaO-Catalyzed Sunflower Oil Methanolysis with Crude Biodiesel as a Cosolvent.” Fuel 237 (February): 903–10. https://doi.org/10.1016/j.fuel.2018.10.056

Todorović, Zoran B.; Troter, Dragan Z.; Đokić-Stojanović, Dušica R.; Veličković, Ana V.; Avramović, Jelena M.; Stamenković, Olivera S.; Veselinović, Ljiljana; Veljković, Vlada B.

(2019)

TY  - BOOK
AU  - Todorović, Zoran B.
AU  - Troter, Dragan Z.
AU  - Đokić-Stojanović, Dušica R.
AU  - Veličković, Ana V.
AU  - Avramović, Jelena M.
AU  - Stamenković, Olivera S.
AU  - Veselinović, Ljiljana
AU  - Veljković, Vlada B.
PY  - 2019
UR  - http://www.sciencedirect.com/science/article/pii/S0016236118317691
UR  - http://dais.sanu.ac.rs/123456789/4071
T2  - Fuel
T1  - Supplementary data for the article: Todorović, Zoran B., Dragan Z. Troter, Dušica R. Đokić-Stojanović, Ana V. Veličković, Jelena M. Avramović, Olivera S. Stamenković, Ljiljana M. Veselinović, and Vlada B. Veljković. 2019. “Optimization of CaO-Catalyzed Sunflower Oil Methanolysis with Crude Biodiesel as a Cosolvent.” Fuel 237 (February): 903–10. https://doi.org/10.1016/j.fuel.2018.10.056
ER  - 
@book{
author = "Todorović, Zoran B. and Troter, Dragan Z. and Đokić-Stojanović, Dušica R. and Veličković, Ana V. and Avramović, Jelena M. and Stamenković, Olivera S. and Veselinović, Ljiljana and Veljković, Vlada B.",
year = "2019",
url = "http://www.sciencedirect.com/science/article/pii/S0016236118317691, http://dais.sanu.ac.rs/123456789/4071",
journal = "Fuel",
title = "Supplementary data for the article: Todorović, Zoran B., Dragan Z. Troter, Dušica R. Đokić-Stojanović, Ana V. Veličković, Jelena M. Avramović, Olivera S. Stamenković, Ljiljana M. Veselinović, and Vlada B. Veljković. 2019. “Optimization of CaO-Catalyzed Sunflower Oil Methanolysis with Crude Biodiesel as a Cosolvent.” Fuel 237 (February): 903–10. https://doi.org/10.1016/j.fuel.2018.10.056"
}
Todorović, Z. B., Troter, D. Z., Đokić-Stojanović, D. R., Veličković, A. V., Avramović, J. M., Stamenković, O. S., Veselinović, L.,& Veljković, V. B. (2019). Supplementary data for the article: Todorović, Zoran B., Dragan Z. Troter, Dušica R. Đokić-Stojanović, Ana V. Veličković, Jelena M. Avramović, Olivera S. Stamenković, Ljiljana M. Veselinović, and Vlada B. Veljković. 2019. “Optimization of CaO-Catalyzed Sunflower Oil Methanolysis with Crude Biodiesel as a Cosolvent.” Fuel 237 (February): 903–10. https://doi.org/10.1016/j.fuel.2018.10.056.
Fuel.
Todorović ZB, Troter DZ, Đokić-Stojanović DR, Veličković AV, Avramović JM, Stamenković OS, Veselinović L, Veljković VB. Supplementary data for the article: Todorović, Zoran B., Dragan Z. Troter, Dušica R. Đokić-Stojanović, Ana V. Veličković, Jelena M. Avramović, Olivera S. Stamenković, Ljiljana M. Veselinović, and Vlada B. Veljković. 2019. “Optimization of CaO-Catalyzed Sunflower Oil Methanolysis with Crude Biodiesel as a Cosolvent.” Fuel 237 (February): 903–10. https://doi.org/10.1016/j.fuel.2018.10.056. Fuel. 2019;
Todorović Zoran B., Troter Dragan Z., Đokić-Stojanović Dušica R., Veličković Ana V., Avramović Jelena M., Stamenković Olivera S., Veselinović Ljiljana, Veljković Vlada B., "Supplementary data for the article: Todorović, Zoran B., Dragan Z. Troter, Dušica R. Đokić-Stojanović, Ana V. Veličković, Jelena M. Avramović, Olivera S. Stamenković, Ljiljana M. Veselinović, and Vlada B. Veljković. 2019. “Optimization of CaO-Catalyzed Sunflower Oil Methanolysis with Crude Biodiesel as a Cosolvent.” Fuel 237 (February): 903–10. https://doi.org/10.1016/j.fuel.2018.10.056" Fuel (2019)

Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil

Đokić Stojanović, Dušica R.; Todorović, Zoran B.; Troter, Dragan; Stamenković, Olivera S.; Veselinović, Ljiljana; Zdujić, Miodrag; Manojlović, Dragan D.; Veljković, Vlada B.

(Belgrade : Serbian Chemical Society, 2019)

TY  - JOUR
AU  - Đokić Stojanović, Dušica R.
AU  - Todorović, Zoran B.
AU  - Troter, Dragan
AU  - Stamenković, Olivera S.
AU  - Veselinović, Ljiljana
AU  - Zdujić, Miodrag
AU  - Manojlović, Dragan D.
AU  - Veljković, Vlada B.
PY  - 2019
UR  - http://dais.sanu.ac.rs/123456789/6183
AB  - Ten organic solvents (triethanolamine, diethanolamine, ethylene glycol, methyl ethyl ketone, n-hexane, triethylamine, ethylene glycol dimethyl ether, glycerol, tetrahydrofuran and dioxane) were applied as cosolvents in the CaO-catalyzed ethanolysis of sunflower oil performed in a batch stirred reactor under the following reaction conditions: temperature 70 °C, ethanol-to-oil mole ratio 12:1, initial catalyst concentration 1.374 mol·L -1 and amount of cosolvent 20 % based on the oil amount. The main goals were to assess the effect of the used cosolvents on the synthesis of fatty acid ethyl esters (FAEE) and to select the most efficient one with respect to the final FAEE content, reaction duration and safety profile. In the absence of any cosolvent, the reaction was rather slow, providing a FAEE content of only 89.7±1.7 % after 4 h. Of the tested cosolvents, diethanolamine, triethanolamine and ethylene glycol significantly accelerated the ethanolysis reaction, whereby the last two provided a final FAEE content of 93.1±2.1 and 94.1±1.5 %, respectively, within 0.5 h. However, because of its safety profile, triethanolamine was selected as the best cosolvent for the ethanolysis of sunflower oil catalyzed by calcined CaO.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil
SP  - 253
EP  - 265
VL  - 84
IS  - 3
DO  - 10.2298/JSC180827007D
ER  - 
@article{
author = "Đokić Stojanović, Dušica R. and Todorović, Zoran B. and Troter, Dragan and Stamenković, Olivera S. and Veselinović, Ljiljana and Zdujić, Miodrag and Manojlović, Dragan D. and Veljković, Vlada B.",
year = "2019",
url = "http://dais.sanu.ac.rs/123456789/6183",
abstract = "Ten organic solvents (triethanolamine, diethanolamine, ethylene glycol, methyl ethyl ketone, n-hexane, triethylamine, ethylene glycol dimethyl ether, glycerol, tetrahydrofuran and dioxane) were applied as cosolvents in the CaO-catalyzed ethanolysis of sunflower oil performed in a batch stirred reactor under the following reaction conditions: temperature 70 °C, ethanol-to-oil mole ratio 12:1, initial catalyst concentration 1.374 mol·L -1 and amount of cosolvent 20 % based on the oil amount. The main goals were to assess the effect of the used cosolvents on the synthesis of fatty acid ethyl esters (FAEE) and to select the most efficient one with respect to the final FAEE content, reaction duration and safety profile. In the absence of any cosolvent, the reaction was rather slow, providing a FAEE content of only 89.7±1.7 % after 4 h. Of the tested cosolvents, diethanolamine, triethanolamine and ethylene glycol significantly accelerated the ethanolysis reaction, whereby the last two provided a final FAEE content of 93.1±2.1 and 94.1±1.5 %, respectively, within 0.5 h. However, because of its safety profile, triethanolamine was selected as the best cosolvent for the ethanolysis of sunflower oil catalyzed by calcined CaO.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil",
pages = "253-265",
volume = "84",
number = "3",
doi = "10.2298/JSC180827007D"
}
Đokić Stojanović, D. R., Todorović, Z. B., Troter, D., Stamenković, O. S., Veselinović, L., Zdujić, M., Manojlović, D. D.,& Veljković, V. B. (2019). Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil.
Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 84(3), 253-265.
https://doi.org/10.2298/JSC180827007D
Đokić Stojanović DR, Todorović ZB, Troter D, Stamenković OS, Veselinović L, Zdujić M, Manojlović DD, Veljković VB. Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil. Journal of the Serbian Chemical Society. 2019;84(3):253-265
Đokić Stojanović Dušica R., Todorović Zoran B., Troter Dragan, Stamenković Olivera S., Veselinović Ljiljana, Zdujić Miodrag, Manojlović Dragan D., Veljković Vlada B., "Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil" Journal of the Serbian Chemical Society, 84, no. 3 (2019):253-265,
https://doi.org/10.2298/JSC180827007D .
1
2

Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study

Đokić-Stojanović, Dušica R.; Todorović, Zoran B.; Troter, Dragan Z.; Stamenković, Olivera S.; Veselinović, Ljiljana; Zdujić, Miodrag; Manojlović, Dragan D.; Veljković, Vlada B.

(2019)

TY  - JOUR
AU  - Đokić-Stojanović, Dušica R.
AU  - Todorović, Zoran B.
AU  - Troter, Dragan Z.
AU  - Stamenković, Olivera S.
AU  - Veselinović, Ljiljana
AU  - Zdujić, Miodrag
AU  - Manojlović, Dragan D.
AU  - Veljković, Vlada B.
PY  - 2019
UR  - https://www.ache-pub.org.rs/index.php/HemInd/article/view/587
UR  - http://dais.sanu.ac.rs/123456789/7041
AB  - Triethanolamine was applied as an efficient „green“ cosolvent for biodiesel production by CaO-catalyzed ethanolysis of sunflower oil. The reaction was conducted in a batch stirred reactor and optimized with respect to the reaction temperature (61.6-78.4 °C), the ethanol-to-oil molar ratio (7:1-17:1) and the cosolvent loading (3-36 % of the oil weight) by using a rotatable central composite design (RCCD) combined with the response surface methodology (RSM). The optimal reaction conditions were found to be: the ethanol-to-oil molar ratio of 9:1, the reaction temperature of 75 °C and the cosolvent loading of 30 % to oil weight, which resulted in the predicted and actual fatty acid ethyl ester (FAEE) contents of 98.8 % and 97.9±1.3 %, respectively, achieved within only 20 min of the reaction. Also, high FAEE contents were obtained with expired sunflower oil, hempseed oil and waste lard. X-ray diffraction analysis (XRD) was used to understand the changes in the CaO phase. The CaO catalyst can be used without any treatment in two consecutive cycles. Due to the calcium leaching into the product, an additional purification stage must be included in the overall process.
T2  - Hemijska industrija
T1  - Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study
SP  - 351
EP  - 362
VL  - 73
IS  - 6
DO  - 10.2298/HEMIND190822033D
ER  - 
@article{
author = "Đokić-Stojanović, Dušica R. and Todorović, Zoran B. and Troter, Dragan Z. and Stamenković, Olivera S. and Veselinović, Ljiljana and Zdujić, Miodrag and Manojlović, Dragan D. and Veljković, Vlada B.",
year = "2019",
url = "https://www.ache-pub.org.rs/index.php/HemInd/article/view/587, http://dais.sanu.ac.rs/123456789/7041",
abstract = "Triethanolamine was applied as an efficient „green“ cosolvent for biodiesel production by CaO-catalyzed ethanolysis of sunflower oil. The reaction was conducted in a batch stirred reactor and optimized with respect to the reaction temperature (61.6-78.4 °C), the ethanol-to-oil molar ratio (7:1-17:1) and the cosolvent loading (3-36 % of the oil weight) by using a rotatable central composite design (RCCD) combined with the response surface methodology (RSM). The optimal reaction conditions were found to be: the ethanol-to-oil molar ratio of 9:1, the reaction temperature of 75 °C and the cosolvent loading of 30 % to oil weight, which resulted in the predicted and actual fatty acid ethyl ester (FAEE) contents of 98.8 % and 97.9±1.3 %, respectively, achieved within only 20 min of the reaction. Also, high FAEE contents were obtained with expired sunflower oil, hempseed oil and waste lard. X-ray diffraction analysis (XRD) was used to understand the changes in the CaO phase. The CaO catalyst can be used without any treatment in two consecutive cycles. Due to the calcium leaching into the product, an additional purification stage must be included in the overall process.",
journal = "Hemijska industrija",
title = "Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study",
pages = "351-362",
volume = "73",
number = "6",
doi = "10.2298/HEMIND190822033D"
}
Đokić-Stojanović, D. R., Todorović, Z. B., Troter, D. Z., Stamenković, O. S., Veselinović, L., Zdujić, M., Manojlović, D. D.,& Veljković, V. B. (2019). Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study.
Hemijska industrija, 73(6), 351-362.
https://doi.org/10.2298/HEMIND190822033D
Đokić-Stojanović DR, Todorović ZB, Troter DZ, Stamenković OS, Veselinović L, Zdujić M, Manojlović DD, Veljković VB. Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study. Hemijska industrija. 2019;73(6):351-362
Đokić-Stojanović Dušica R., Todorović Zoran B., Troter Dragan Z., Stamenković Olivera S., Veselinović Ljiljana, Zdujić Miodrag, Manojlović Dragan D., Veljković Vlada B., "Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study" Hemijska industrija, 73, no. 6 (2019):351-362,
https://doi.org/10.2298/HEMIND190822033D .
1
1
1

Supplementary material to Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study

Đokić-Stojanović, Dušica R.; Todorović, Zoran B.; Troter, Dragan Z.; Stamenković, Olivera S.; Veselinović, Ljiljana; Zdujić, Miodrag; Manojlović, Dragan D.; Veljković, Vlada B.

(2019)

TY  - BOOK
AU  - Đokić-Stojanović, Dušica R.
AU  - Todorović, Zoran B.
AU  - Troter, Dragan Z.
AU  - Stamenković, Olivera S.
AU  - Veselinović, Ljiljana
AU  - Zdujić, Miodrag
AU  - Manojlović, Dragan D.
AU  - Veljković, Vlada B.
PY  - 2019
UR  - https://www.ache-pub.org.rs/index.php/HemInd/article/view/587/pdf_1
UR  - http://dais.sanu.ac.rs/123456789/7043
AB  - Figure D1. Normal probability plot of residuals (a), Cook's distances (b) and predicted and actual values of FAEE content (c); Table D1. Results of sequential model sum of squares test; Table D2. Results of lack of fit test; Table D3. Results of model summary statistics test
T2  - Hemijska industrija
T1  - Supplementary material to Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study
SP  - D17
EP  - D18
VL  - 73
IS  - 6
ER  - 
@book{
author = "Đokić-Stojanović, Dušica R. and Todorović, Zoran B. and Troter, Dragan Z. and Stamenković, Olivera S. and Veselinović, Ljiljana and Zdujić, Miodrag and Manojlović, Dragan D. and Veljković, Vlada B.",
year = "2019",
url = "https://www.ache-pub.org.rs/index.php/HemInd/article/view/587/pdf_1, http://dais.sanu.ac.rs/123456789/7043",
abstract = "Figure D1. Normal probability plot of residuals (a), Cook's distances (b) and predicted and actual values of FAEE content (c); Table D1. Results of sequential model sum of squares test; Table D2. Results of lack of fit test; Table D3. Results of model summary statistics test",
journal = "Hemijska industrija",
title = "Supplementary material to Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study",
pages = "D17-D18",
volume = "73",
number = "6"
}
Đokić-Stojanović, D. R., Todorović, Z. B., Troter, D. Z., Stamenković, O. S., Veselinović, L., Zdujić, M., Manojlović, D. D.,& Veljković, V. B. (2019). Supplementary material to Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study.
Hemijska industrija, 73(6), D17-D18.
Đokić-Stojanović DR, Todorović ZB, Troter DZ, Stamenković OS, Veselinović L, Zdujić M, Manojlović DD, Veljković VB. Supplementary material to Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study. Hemijska industrija. 2019;73(6):D17-D18
Đokić-Stojanović Dušica R., Todorović Zoran B., Troter Dragan Z., Stamenković Olivera S., Veselinović Ljiljana, Zdujić Miodrag, Manojlović Dragan D., Veljković Vlada B., "Supplementary material to Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study" Hemijska industrija, 73, no. 6 (2019):D17-D18

Supporting information: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019. Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil. Advanced Powder Technology 30, 1141–1150. https://doi.org/10.1016/j.apt.2019.03.009

Zdujić, Miodrag; Lukić, Ivana; Kesić, Željka; Janković-Častvan, Ivona; Marković, Smilja; Jovalekić, Čedomir; Skala, Dejan

(Elsevier, 2019)

TY  - BOOK
AU  - Zdujić, Miodrag
AU  - Lukić, Ivana
AU  - Kesić, Željka
AU  - Janković-Častvan, Ivona
AU  - Marković, Smilja
AU  - Jovalekić, Čedomir
AU  - Skala, Dejan
PY  - 2019
UR  - http://dais.sanu.ac.rs/123456789/7045
AB  - Fig. 1S. UV-vis diffuse reflectance spectra of CaO-SiO2 system; Fig. 2S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of CaO;  Fig. 3S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of SiO2;  Fig. 4S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of CaO•SiO2 calcined at 700 °C/2 h; Fig. 5S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of CaO•SiO2 calcined at 900 °C/48 h;  Fig. 6S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of 3CaO•2SiO2 calcined at 700 °C/2 h and 900 °C/48 h;  Fig. 7S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of 2CaO•SiO2 calcined at 700 °C/2 h and 900 °C/48 h; Fig. 8S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of 3CaO•SiO2 calcined at 700 °C/2 h and 900 °C/48 h
PB  - Elsevier
T2  - Advanced Powder Technology
T1  - Supporting information: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019. Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil. Advanced Powder Technology 30, 1141–1150. https://doi.org/10.1016/j.apt.2019.03.009
VL  - 30
IS  - 6
ER  - 
@book{
author = "Zdujić, Miodrag and Lukić, Ivana and Kesić, Željka and Janković-Častvan, Ivona and Marković, Smilja and Jovalekić, Čedomir and Skala, Dejan",
year = "2019",
url = "http://dais.sanu.ac.rs/123456789/7045",
abstract = "Fig. 1S. UV-vis diffuse reflectance spectra of CaO-SiO2 system; Fig. 2S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of CaO;  Fig. 3S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of SiO2;  Fig. 4S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of CaO•SiO2 calcined at 700 °C/2 h; Fig. 5S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of CaO•SiO2 calcined at 900 °C/48 h;  Fig. 6S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of 3CaO•2SiO2 calcined at 700 °C/2 h and 900 °C/48 h;  Fig. 7S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of 2CaO•SiO2 calcined at 700 °C/2 h and 900 °C/48 h; Fig. 8S. Kubelka-Munk transformed reflectance spectra (Tauc plot) of 3CaO•SiO2 calcined at 700 °C/2 h and 900 °C/48 h",
publisher = "Elsevier",
journal = "Advanced Powder Technology",
title = "Supporting information: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019. Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil. Advanced Powder Technology 30, 1141–1150. https://doi.org/10.1016/j.apt.2019.03.009",
volume = "30",
number = "6"
}
Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č.,& Skala, D. (2019). Supporting information: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019. Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil. Advanced Powder Technology 30, 1141–1150. https://doi.org/10.1016/j.apt.2019.03.009.
Advanced Powder Technology
Elsevier., 30(6).
Zdujić M, Lukić I, Kesić Ž, Janković-Častvan I, Marković S, Jovalekić Č, Skala D. Supporting information: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019. Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil. Advanced Powder Technology 30, 1141–1150. https://doi.org/10.1016/j.apt.2019.03.009. Advanced Powder Technology. 2019;30(6)
Zdujić Miodrag, Lukić Ivana, Kesić Željka, Janković-Častvan Ivona, Marković Smilja, Jovalekić Čedomir, Skala Dejan, "Supporting information: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019. Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil. Advanced Powder Technology 30, 1141–1150. https://doi.org/10.1016/j.apt.2019.03.009" Advanced Powder Technology, 30, no. 6 (2019)

Supporting information for the article: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019. Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil. Advanced Powder Technology. https://doi.org/10.1016/j.apt.2019.03.009

Zdujić, Miodrag; Lukić, Ivana; Kesić, Željka; Janković-Častvan, Ivona; Marković, Smilja; Jovalekić, Čedomir; Skala, Dejan

(2019)

TY  - BOOK
AU  - Zdujić, Miodrag
AU  - Lukić, Ivana
AU  - Kesić, Željka
AU  - Janković-Častvan, Ivona
AU  - Marković, Smilja
AU  - Jovalekić, Čedomir
AU  - Skala, Dejan
PY  - 2019
UR  - http://www.sciencedirect.com/science/article/pii/S0921883119300615
UR  - http://dais.sanu.ac.rs/123456789/5974
T2  - Advanced Powder Technology
T1  - Supporting information for the article: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019.  Synthesis  of  CaOSiO2  compounds  and  their  testing  as  heterogeneous  catalysts  for transesterification of sunflower oil. Advanced Powder Technology. https://doi.org/10.1016/j.apt.2019.03.009
ER  - 
@book{
author = "Zdujić, Miodrag and Lukić, Ivana and Kesić, Željka and Janković-Častvan, Ivona and Marković, Smilja and Jovalekić, Čedomir and Skala, Dejan",
year = "2019",
url = "http://www.sciencedirect.com/science/article/pii/S0921883119300615, http://dais.sanu.ac.rs/123456789/5974",
journal = "Advanced Powder Technology",
title = "Supporting information for the article: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019.  Synthesis  of  CaOSiO2  compounds  and  their  testing  as  heterogeneous  catalysts  for transesterification of sunflower oil. Advanced Powder Technology. https://doi.org/10.1016/j.apt.2019.03.009"
}
Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č.,& Skala, D. (2019). Supporting information for the article: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019.  Synthesis  of  CaOSiO2  compounds  and  their  testing  as  heterogeneous  catalysts  for transesterification of sunflower oil. Advanced Powder Technology. https://doi.org/10.1016/j.apt.2019.03.009.
Advanced Powder Technology.
Zdujić M, Lukić I, Kesić Ž, Janković-Častvan I, Marković S, Jovalekić Č, Skala D. Supporting information for the article: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019.  Synthesis  of  CaOSiO2  compounds  and  their  testing  as  heterogeneous  catalysts  for transesterification of sunflower oil. Advanced Powder Technology. https://doi.org/10.1016/j.apt.2019.03.009. Advanced Powder Technology. 2019;
Zdujić Miodrag, Lukić Ivana, Kesić Željka, Janković-Častvan Ivona, Marković Smilja, Jovalekić Čedomir, Skala Dejan, "Supporting information for the article: Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č., Skala, D., 2019.  Synthesis  of  CaOSiO2  compounds  and  their  testing  as  heterogeneous  catalysts  for transesterification of sunflower oil. Advanced Powder Technology. https://doi.org/10.1016/j.apt.2019.03.009" Advanced Powder Technology (2019)

On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature

Zdujić, Miodrag; Petrović, Slobodan D.; Valentić, Nataša V.; Mijin, Dušan

(Belgrade : Engineers Society of Corrosion, 2019)

TY  - JOUR
AU  - Zdujić, Miodrag
AU  - Petrović, Slobodan D.
AU  - Valentić, Nataša V.
AU  - Mijin, Dušan
PY  - 2019
UR  - https://scindeks.ceon.rs/article.aspx?artid=0351-94651903229Z
UR  - http://www.ncbi.nlm.nih.gov/pubmed/0351-94651903229Z
UR  - http://dais.sanu.ac.rs/123456789/6954
AB  - Milling of cyanoacetamide and acetoacetic ester as reactants, in the presence of KOH as the catalyst and ethanol as a viscous control agent (VCA) was performed in a planetary ball mill with the goal of investigating the effect of mechanochemical treatment for the synthesis of 3-cyano-6hydroxy-4-methyl-2-pyridone at room temperature. The mechanochemical synthesis was performed under various milling parameters, i.e. milling time up to 4 h, number and size of balls, angular velocity as well as molar ratio of reactants and the amount of catalyst. The obtained product was characterized by m.p., UV, IR and NMR data. It was fond that the dominant process parameter is the milling time while others are of less importance. The highest isolated yield after milling was up to 56%. The combination of milling and aging increase yield over 60%.
PB  - Belgrade : Engineers Society of Corrosion
T2  - Zaštita materijala
T1  - On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature
SP  - 229
EP  - 236
VL  - 60
IS  - 3
DO  - 10.5937/zasmat1903229Z
ER  - 
@article{
author = "Zdujić, Miodrag and Petrović, Slobodan D. and Valentić, Nataša V. and Mijin, Dušan",
year = "2019",
url = "https://scindeks.ceon.rs/article.aspx?artid=0351-94651903229Z, http://www.ncbi.nlm.nih.gov/pubmed/0351-94651903229Z, http://dais.sanu.ac.rs/123456789/6954",
abstract = "Milling of cyanoacetamide and acetoacetic ester as reactants, in the presence of KOH as the catalyst and ethanol as a viscous control agent (VCA) was performed in a planetary ball mill with the goal of investigating the effect of mechanochemical treatment for the synthesis of 3-cyano-6hydroxy-4-methyl-2-pyridone at room temperature. The mechanochemical synthesis was performed under various milling parameters, i.e. milling time up to 4 h, number and size of balls, angular velocity as well as molar ratio of reactants and the amount of catalyst. The obtained product was characterized by m.p., UV, IR and NMR data. It was fond that the dominant process parameter is the milling time while others are of less importance. The highest isolated yield after milling was up to 56%. The combination of milling and aging increase yield over 60%.",
publisher = "Belgrade : Engineers Society of Corrosion",
journal = "Zaštita materijala",
title = "On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature",
pages = "229-236",
volume = "60",
number = "3",
doi = "10.5937/zasmat1903229Z"
}
Zdujić, M., Petrović, S. D., Valentić, N. V.,& Mijin, D. (2019). On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature.
Zaštita materijala
Belgrade : Engineers Society of Corrosion., 60(3), 229-236.
https://doi.org/10.5937/zasmat1903229Z
Zdujić M, Petrović SD, Valentić NV, Mijin D. On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature. Zaštita materijala. 2019;60(3):229-236
Zdujić Miodrag, Petrović Slobodan D., Valentić Nataša V., Mijin Dušan, "On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature" Zaštita materijala, 60, no. 3 (2019):229-236,
https://doi.org/10.5937/zasmat1903229Z .

Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil

Zdujić, Miodrag; Lukić, Ivana; Kesić, Željka; Janković-Častvan, Ivona; Marković, Smilja; Jovalekić, Čedomir; Skala, Dejan

(Elsevier, 2019)

TY  - JOUR
AU  - Zdujić, Miodrag
AU  - Lukić, Ivana
AU  - Kesić, Željka
AU  - Janković-Častvan, Ivona
AU  - Marković, Smilja
AU  - Jovalekić, Čedomir
AU  - Skala, Dejan
PY  - 2019
UR  - http://www.sciencedirect.com/science/article/pii/S0921883119300615
UR  - http://dais.sanu.ac.rs/123456789/5142
AB  - The powder mixtures of calcium oxide (CaO) and silica gel (SiO2) in molar ratios of 1:1, 1.5:1, 2:1 and 3:1 were mechanochemically treated with the addition of water, and were subsequently calcined with a goal of synthesizing CaSiO3, Ca3Si2O7, Ca2SiO4 compounds and CaO/Ca2SiO4 two-phase mixture. The prepared materials were characterized by XRD, FTIR, SEM/EDS, particle size laser diffraction (PSLD), UV–vis diffuse reflectance spectroscopy (DRS), N2 adsorption/desorption isotherms, Hammett indicator for basic strength and volumetric analysis for free CaO content. The catalytic activity of calcium silicates with different Ca/Si ratios was tested in the transesterification of triacylglycerols (sunflower oil) with methanol. Samples obtained with initial composition 2CaO·SiO2 and 3CaO·SiO2 calcined at 700 °C, and 3CaO·SiO2 calcined at 900 °C had high catalytic activity, resulting with triacylglycerols conversion and fatty acids methyl ester formation (FAME or biodiesel) above 96%. The activity of these samples can be attributed to the existence of free CaO defined by CaO/Ca2SiO4 complex mixture. The effect of different amount of catalyst used for transesterification (0.2–2 wt%) was analyzed using the most active catalyst i.e. 3CaO·SiO2 calcined at 700 °C as well as possibility of its reuse for biodiesel synthesis. It was also found that CaSiO3, Ca3Si2O7 and Ca2SiO4, phases did not possess catalytic activity.
PB  - Elsevier
T2  - Advanced Powder Technology
T1  - Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil
SP  - 1141
EP  - 1150
VL  - 30
IS  - 6
DO  - 10.1016/j.apt.2019.03.009
ER  - 
@article{
author = "Zdujić, Miodrag and Lukić, Ivana and Kesić, Željka and Janković-Častvan, Ivona and Marković, Smilja and Jovalekić, Čedomir and Skala, Dejan",
year = "2019",
url = "http://www.sciencedirect.com/science/article/pii/S0921883119300615, http://dais.sanu.ac.rs/123456789/5142",
abstract = "The powder mixtures of calcium oxide (CaO) and silica gel (SiO2) in molar ratios of 1:1, 1.5:1, 2:1 and 3:1 were mechanochemically treated with the addition of water, and were subsequently calcined with a goal of synthesizing CaSiO3, Ca3Si2O7, Ca2SiO4 compounds and CaO/Ca2SiO4 two-phase mixture. The prepared materials were characterized by XRD, FTIR, SEM/EDS, particle size laser diffraction (PSLD), UV–vis diffuse reflectance spectroscopy (DRS), N2 adsorption/desorption isotherms, Hammett indicator for basic strength and volumetric analysis for free CaO content. The catalytic activity of calcium silicates with different Ca/Si ratios was tested in the transesterification of triacylglycerols (sunflower oil) with methanol. Samples obtained with initial composition 2CaO·SiO2 and 3CaO·SiO2 calcined at 700 °C, and 3CaO·SiO2 calcined at 900 °C had high catalytic activity, resulting with triacylglycerols conversion and fatty acids methyl ester formation (FAME or biodiesel) above 96%. The activity of these samples can be attributed to the existence of free CaO defined by CaO/Ca2SiO4 complex mixture. The effect of different amount of catalyst used for transesterification (0.2–2 wt%) was analyzed using the most active catalyst i.e. 3CaO·SiO2 calcined at 700 °C as well as possibility of its reuse for biodiesel synthesis. It was also found that CaSiO3, Ca3Si2O7 and Ca2SiO4, phases did not possess catalytic activity.",
publisher = "Elsevier",
journal = "Advanced Powder Technology",
title = "Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil",
pages = "1141-1150",
volume = "30",
number = "6",
doi = "10.1016/j.apt.2019.03.009"
}
Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č.,& Skala, D. (2019). Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil.
Advanced Powder Technology
Elsevier., 30(6), 1141-1150.
https://doi.org/10.1016/j.apt.2019.03.009
Zdujić M, Lukić I, Kesić Ž, Janković-Častvan I, Marković S, Jovalekić Č, Skala D. Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil. Advanced Powder Technology. 2019;30(6):1141-1150
Zdujić Miodrag, Lukić Ivana, Kesić Željka, Janković-Častvan Ivona, Marković Smilja, Jovalekić Čedomir, Skala Dejan, "Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil" Advanced Powder Technology, 30, no. 6 (2019):1141-1150,
https://doi.org/10.1016/j.apt.2019.03.009 .
9
7
9

Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil

Zdujić, Miodrag; Lukić, Ivana; Kesić, Željka; Janković-Častvan, Ivona; Marković, Smilja; Jovalekić, Čedomir; Skala, Dejan

(Elsevier, 2019)

TY  - JOUR
AU  - Zdujić, Miodrag
AU  - Lukić, Ivana
AU  - Kesić, Željka
AU  - Janković-Častvan, Ivona
AU  - Marković, Smilja
AU  - Jovalekić, Čedomir
AU  - Skala, Dejan
PY  - 2019
UR  - http://www.sciencedirect.com/science/article/pii/S0921883119300615
UR  - http://dais.sanu.ac.rs/123456789/5802
AB  - The powder mixtures of calcium oxide (CaO) and silica gel (SiO2) in molar ratios of 1:1, 1.5:1, 2:1 and 3:1 were mechanochemically treated with the addition of water, and were subsequently calcined with a goal of synthesizing CaSiO3, Ca3Si2O7, Ca2SiO4 compounds and CaO/Ca2SiO4 two-phase mixture. The prepared materials were characterized by XRD, FTIR, SEM/EDS, particle size laser diffraction (PSLD), UV–vis diffuse reflectance spectroscopy (DRS), N2 adsorption/desorption isotherms, Hammett indicator for basic strength and volumetric analysis for free CaO content. The catalytic activity of calcium silicates with different Ca/Si ratios was tested in the transesterification of triacylglycerols (sunflower oil) with methanol. Samples obtained with initial composition 2CaO·SiO2 and 3CaO·SiO2 calcined at 700 °C, and 3CaO·SiO2 calcined at 900 °C had high catalytic activity, resulting with triacylglycerols conversion and fatty acids methyl ester formation (FAME or biodiesel) above 96%. The activity of these samples can be attributed to the existence of free CaO defined by CaO/Ca2SiO4 complex mixture. The effect of different amount of catalyst used for transesterification (0.2–2 wt%) was analyzed using the most active catalyst i.e. 3CaO·SiO2 calcined at 700 °C as well as possibility of its reuse for biodiesel synthesis. It was also found that CaSiO3, Ca3Si2O7 and Ca2SiO4, phases did not possess catalytic activity.
PB  - Elsevier
T2  - Advanced Powder Technology
T1  - Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil
SP  - 1141
EP  - 1150
VL  - 30
IS  - 6
DO  - 10.1016/j.apt.2019.03.009
ER  - 
@article{
author = "Zdujić, Miodrag and Lukić, Ivana and Kesić, Željka and Janković-Častvan, Ivona and Marković, Smilja and Jovalekić, Čedomir and Skala, Dejan",
year = "2019",
url = "http://www.sciencedirect.com/science/article/pii/S0921883119300615, http://dais.sanu.ac.rs/123456789/5802",
abstract = "The powder mixtures of calcium oxide (CaO) and silica gel (SiO2) in molar ratios of 1:1, 1.5:1, 2:1 and 3:1 were mechanochemically treated with the addition of water, and were subsequently calcined with a goal of synthesizing CaSiO3, Ca3Si2O7, Ca2SiO4 compounds and CaO/Ca2SiO4 two-phase mixture. The prepared materials were characterized by XRD, FTIR, SEM/EDS, particle size laser diffraction (PSLD), UV–vis diffuse reflectance spectroscopy (DRS), N2 adsorption/desorption isotherms, Hammett indicator for basic strength and volumetric analysis for free CaO content. The catalytic activity of calcium silicates with different Ca/Si ratios was tested in the transesterification of triacylglycerols (sunflower oil) with methanol. Samples obtained with initial composition 2CaO·SiO2 and 3CaO·SiO2 calcined at 700 °C, and 3CaO·SiO2 calcined at 900 °C had high catalytic activity, resulting with triacylglycerols conversion and fatty acids methyl ester formation (FAME or biodiesel) above 96%. The activity of these samples can be attributed to the existence of free CaO defined by CaO/Ca2SiO4 complex mixture. The effect of different amount of catalyst used for transesterification (0.2–2 wt%) was analyzed using the most active catalyst i.e. 3CaO·SiO2 calcined at 700 °C as well as possibility of its reuse for biodiesel synthesis. It was also found that CaSiO3, Ca3Si2O7 and Ca2SiO4, phases did not possess catalytic activity.",
publisher = "Elsevier",
journal = "Advanced Powder Technology",
title = "Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil",
pages = "1141-1150",
volume = "30",
number = "6",
doi = "10.1016/j.apt.2019.03.009"
}
Zdujić, M., Lukić, I., Kesić, Ž., Janković-Častvan, I., Marković, S., Jovalekić, Č.,& Skala, D. (2019). Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil.
Advanced Powder Technology
Elsevier., 30(6), 1141-1150.
https://doi.org/10.1016/j.apt.2019.03.009
Zdujić M, Lukić I, Kesić Ž, Janković-Častvan I, Marković S, Jovalekić Č, Skala D. Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil. Advanced Powder Technology. 2019;30(6):1141-1150
Zdujić Miodrag, Lukić Ivana, Kesić Željka, Janković-Častvan Ivona, Marković Smilja, Jovalekić Čedomir, Skala Dejan, "Synthesis of CaOSiO2 compounds and their testing as heterogeneous catalysts for transesterification of sunflower oil" Advanced Powder Technology, 30, no. 6 (2019):1141-1150,
https://doi.org/10.1016/j.apt.2019.03.009 .
9
7
9

Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst

Liu, Hui; Lukić, Ivana; Miladinović, Marija R.; Veljković, Vlada B.; Zdujić, Miodrag; Zhu, Xiaosun; Zhang, Yanan; Skala, Dejan

(Elsevier, 2018)

TY  - JOUR
AU  - Liu, Hui
AU  - Lukić, Ivana
AU  - Miladinović, Marija R.
AU  - Veljković, Vlada B.
AU  - Zdujić, Miodrag
AU  - Zhu, Xiaosun
AU  - Zhang, Yanan
AU  - Skala, Dejan
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/4513
AB  - The continuous biodiesel production from soybean oil was carried out under the subcritical condition of methanol with MnCO3/Na-silicate as a heterogeneous catalyst. The transesterification rate was first investigated in a set of experiments performed in a batch autoclave at 448 K using methanol-to-oil molar ratio of 18:1 and various catalyst loadings (5, 10 and 20 wt% based on the oil mass). The results from these experiments, as well as the experimental data and the appropriate kinetic model recently reported in the literature were used for designing a packed bed tubular reactor (PBTR), a main unit of the pilot plant with the capacity of 100 L of biodiesel per day. The pilot plant was constructed and tested under various operating conditions. The first 11 h of the pilot-plant operation was realized in the tubular reactor packed with inert glass beads (i.e. without the catalyst) in order to analyze the effect of the non-catalyzed subcritical biodiesel (fatty acid methyl esters, FAME) production. Then, glass beads were replaced with a mix of MnCO3/Na-silicate catalyst particles and glass beads, and the catalytic biodiesel production was continuously run under the subcritical methanol condition for 85 h. Two mass balance tests during the continuous pilot plant operation were performed. © 2018 Elsevier Ltd
PB  - Elsevier
T2  - Energy Conversion and Management
T1  - Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst
SP  - 494
EP  - 504
VL  - 168
DO  - 10.1016/j.enconman.2018.05.028
ER  - 
@article{
author = "Liu, Hui and Lukić, Ivana and Miladinović, Marija R. and Veljković, Vlada B. and Zdujić, Miodrag and Zhu, Xiaosun and Zhang, Yanan and Skala, Dejan",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/4513",
abstract = "The continuous biodiesel production from soybean oil was carried out under the subcritical condition of methanol with MnCO3/Na-silicate as a heterogeneous catalyst. The transesterification rate was first investigated in a set of experiments performed in a batch autoclave at 448 K using methanol-to-oil molar ratio of 18:1 and various catalyst loadings (5, 10 and 20 wt% based on the oil mass). The results from these experiments, as well as the experimental data and the appropriate kinetic model recently reported in the literature were used for designing a packed bed tubular reactor (PBTR), a main unit of the pilot plant with the capacity of 100 L of biodiesel per day. The pilot plant was constructed and tested under various operating conditions. The first 11 h of the pilot-plant operation was realized in the tubular reactor packed with inert glass beads (i.e. without the catalyst) in order to analyze the effect of the non-catalyzed subcritical biodiesel (fatty acid methyl esters, FAME) production. Then, glass beads were replaced with a mix of MnCO3/Na-silicate catalyst particles and glass beads, and the catalytic biodiesel production was continuously run under the subcritical methanol condition for 85 h. Two mass balance tests during the continuous pilot plant operation were performed. © 2018 Elsevier Ltd",
publisher = "Elsevier",
journal = "Energy Conversion and Management",
title = "Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst",
pages = "494-504",
volume = "168",
doi = "10.1016/j.enconman.2018.05.028"
}
Liu, H., Lukić, I., Miladinović, M. R., Veljković, V. B., Zdujić, M., Zhu, X., Zhang, Y.,& Skala, D. (2018). Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst.
Energy Conversion and Management
Elsevier., 168, 494-504.
https://doi.org/10.1016/j.enconman.2018.05.028
Liu H, Lukić I, Miladinović MR, Veljković VB, Zdujić M, Zhu X, Zhang Y, Skala D. Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst. Energy Conversion and Management. 2018;168:494-504
Liu Hui, Lukić Ivana, Miladinović Marija R., Veljković Vlada B., Zdujić Miodrag, Zhu Xiaosun, Zhang Yanan, Skala Dejan, "Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst" Energy Conversion and Management, 168 (2018):494-504,
https://doi.org/10.1016/j.enconman.2018.05.028 .
3
2
3

Biodiesel synthesis and kinetic analysis based on MnCO3/Na silicate as heterogeneous catalyst

Zhang, Yanan; Liu, Hui; Zhu, Xiaochan; Lukić, Ivana; Zdujić, Miodrag; Shen, Xiang; Skala, Dejan

(Belgrade : Serbian Chemical Society, 2018)

TY  - JOUR
AU  - Zhang, Yanan
AU  - Liu, Hui
AU  - Zhu, Xiaochan
AU  - Lukić, Ivana
AU  - Zdujić, Miodrag
AU  - Shen, Xiang
AU  - Skala, Dejan
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/3751
AB  - Тhe MnCO3/Na silicate (Mn/Na/Si mole ratio of 4.65:1:1.65) catalyst in the form of solid particles with diameter of 0.99–1.99 mm was used as a catalyst for transesterification of soybean oil in batch autoclave at different conditions: 388–468 K, methanol-to-oil mole ratio 12:1–30:1, catalyst amount based on the mass of oil 0–12.5 %. The complete triacylglycerols (TAG) conversion and high yield of fatty acid methyl ester (FAME) was obtained after 1 h at 458 K, methanol-to-oil mole ratio 30:1 and 10 % of catalyst. Kinetics of transesterification process was analyzed by three models: the simple first order irreversible reaction rate, as well as two more complex models recently reported in literature. The catalyst reuse in transesterification process was tested and the average values of 99.0 % of TAG conversion and 97.5 % of FAME yield were obtained after 8 consecutive runs. Different techniques were used to characterize fresh and used MnCO3/Na silicate catalyst. The determined amounts of leached Na (<500 ppm) and Mn (<20 ppm) in biodiesel phase implied that the homogeneous-heterogeneous process influences the catalyst selectivity, whereby leached Na enables the complete transformation of TAG to FAME.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Biodiesel synthesis and kinetic analysis based on MnCO3/Na silicate as heterogeneous catalyst
SP  - 345
EP  - 365
VL  - 83
IS  - 3
DO  - 10.2298/JSC170612005Z
ER  - 
@article{
author = "Zhang, Yanan and Liu, Hui and Zhu, Xiaochan and Lukić, Ivana and Zdujić, Miodrag and Shen, Xiang and Skala, Dejan",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/3751",
abstract = "Тhe MnCO3/Na silicate (Mn/Na/Si mole ratio of 4.65:1:1.65) catalyst in the form of solid particles with diameter of 0.99–1.99 mm was used as a catalyst for transesterification of soybean oil in batch autoclave at different conditions: 388–468 K, methanol-to-oil mole ratio 12:1–30:1, catalyst amount based on the mass of oil 0–12.5 %. The complete triacylglycerols (TAG) conversion and high yield of fatty acid methyl ester (FAME) was obtained after 1 h at 458 K, methanol-to-oil mole ratio 30:1 and 10 % of catalyst. Kinetics of transesterification process was analyzed by three models: the simple first order irreversible reaction rate, as well as two more complex models recently reported in literature. The catalyst reuse in transesterification process was tested and the average values of 99.0 % of TAG conversion and 97.5 % of FAME yield were obtained after 8 consecutive runs. Different techniques were used to characterize fresh and used MnCO3/Na silicate catalyst. The determined amounts of leached Na (<500 ppm) and Mn (<20 ppm) in biodiesel phase implied that the homogeneous-heterogeneous process influences the catalyst selectivity, whereby leached Na enables the complete transformation of TAG to FAME.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Biodiesel synthesis and kinetic analysis based on MnCO3/Na silicate as heterogeneous catalyst",
pages = "345-365",
volume = "83",
number = "3",
doi = "10.2298/JSC170612005Z"
}
Zhang, Y., Liu, H., Zhu, X., Lukić, I., Zdujić, M., Shen, X.,& Skala, D. (2018). Biodiesel synthesis and kinetic analysis based on MnCO3/Na silicate as heterogeneous catalyst.
Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 83(3), 345-365.
https://doi.org/10.2298/JSC170612005Z
Zhang Y, Liu H, Zhu X, Lukić I, Zdujić M, Shen X, Skala D. Biodiesel synthesis and kinetic analysis based on MnCO3/Na silicate as heterogeneous catalyst. Journal of the Serbian Chemical Society. 2018;83(3):345-365
Zhang Yanan, Liu Hui, Zhu Xiaochan, Lukić Ivana, Zdujić Miodrag, Shen Xiang, Skala Dejan, "Biodiesel synthesis and kinetic analysis based on MnCO3/Na silicate as heterogeneous catalyst" Journal of the Serbian Chemical Society, 83, no. 3 (2018):345-365,
https://doi.org/10.2298/JSC170612005Z .
1
2
2

Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst

Liu, Hui; Lukić, Ivana; Miladinović, Marija R.; Veljković, Vlada B.; Zdujić, Miodrag; Zhu, Xiaosun; Zhang, Yanan; Skala, Dejan

(Elsevier, 2018)

TY  - JOUR
AU  - Liu, Hui
AU  - Lukić, Ivana
AU  - Miladinović, Marija R.
AU  - Veljković, Vlada B.
AU  - Zdujić, Miodrag
AU  - Zhu, Xiaosun
AU  - Zhang, Yanan
AU  - Skala, Dejan
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/3701
AB  - The continuous biodiesel production from soybean oil was carried out under the subcritical condition of methanol with MnCO3/Na-silicate as a heterogeneous catalyst. The transesterification rate was first investigated in a set of experiments performed in a batch autoclave at 448 K using methanol-to-oil molar ratio of 18:1 and various catalyst loadings (5, 10 and 20 wt% based on the oil mass). The results from these experiments, as well as the experimental data and the appropriate kinetic model recently reported in the literature were used for designing a packed bed tubular reactor (PBTR), a main unit of the pilot plant with the capacity of 100 L of biodiesel per day. The pilot plant was constructed and tested under various operating conditions. The first 11 h of the pilot-plant operation was realized in the tubular reactor packed with inert glass beads (i.e. without the catalyst) in order to analyze the effect of the non-catalyzed subcritical biodiesel (fatty acid methyl esters, FAME) production. Then, glass beads were replaced with a mix of MnCO3/Na-silicate catalyst particles and glass beads, and the catalytic biodiesel production was continuously run under the subcritical methanol condition for 85 h. Two mass balance tests during the continuous pilot plant operation were performed. © 2018 Elsevier Ltd
PB  - Elsevier
T2  - Energy Conversion and Management
T1  - Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst
SP  - 494
EP  - 504
VL  - 168
DO  - 10.1016/j.enconman.2018.05.028
ER  - 
@article{
author = "Liu, Hui and Lukić, Ivana and Miladinović, Marija R. and Veljković, Vlada B. and Zdujić, Miodrag and Zhu, Xiaosun and Zhang, Yanan and Skala, Dejan",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/3701",
abstract = "The continuous biodiesel production from soybean oil was carried out under the subcritical condition of methanol with MnCO3/Na-silicate as a heterogeneous catalyst. The transesterification rate was first investigated in a set of experiments performed in a batch autoclave at 448 K using methanol-to-oil molar ratio of 18:1 and various catalyst loadings (5, 10 and 20 wt% based on the oil mass). The results from these experiments, as well as the experimental data and the appropriate kinetic model recently reported in the literature were used for designing a packed bed tubular reactor (PBTR), a main unit of the pilot plant with the capacity of 100 L of biodiesel per day. The pilot plant was constructed and tested under various operating conditions. The first 11 h of the pilot-plant operation was realized in the tubular reactor packed with inert glass beads (i.e. without the catalyst) in order to analyze the effect of the non-catalyzed subcritical biodiesel (fatty acid methyl esters, FAME) production. Then, glass beads were replaced with a mix of MnCO3/Na-silicate catalyst particles and glass beads, and the catalytic biodiesel production was continuously run under the subcritical methanol condition for 85 h. Two mass balance tests during the continuous pilot plant operation were performed. © 2018 Elsevier Ltd",
publisher = "Elsevier",
journal = "Energy Conversion and Management",
title = "Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst",
pages = "494-504",
volume = "168",
doi = "10.1016/j.enconman.2018.05.028"
}
Liu, H., Lukić, I., Miladinović, M. R., Veljković, V. B., Zdujić, M., Zhu, X., Zhang, Y.,& Skala, D. (2018). Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst.
Energy Conversion and Management
Elsevier., 168, 494-504.
https://doi.org/10.1016/j.enconman.2018.05.028
Liu H, Lukić I, Miladinović MR, Veljković VB, Zdujić M, Zhu X, Zhang Y, Skala D. Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst. Energy Conversion and Management. 2018;168:494-504
Liu Hui, Lukić Ivana, Miladinović Marija R., Veljković Vlada B., Zdujić Miodrag, Zhu Xiaosun, Zhang Yanan, Skala Dejan, "Continuous biodiesel production under subcritical condition of methanol – Design of pilot plant and packed bed reactor with MnCO3/Na-silicate catalyst" Energy Conversion and Management, 168 (2018):494-504,
https://doi.org/10.1016/j.enconman.2018.05.028 .
3
2
3

Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil

Troter, Dragan Z.; Todorović, Zoran B.; Đokić Stojanović, Dušica R.; Veselinović, Ljiljana; Zdujić, Miodrag; Veljković, Vlada B.

(Elsevier, 2018)

TY  - JOUR
AU  - Troter, Dragan Z.
AU  - Todorović, Zoran B.
AU  - Đokić Stojanović, Dušica R.
AU  - Veselinović, Ljiljana
AU  - Zdujić, Miodrag
AU  - Veljković, Vlada B.
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/3694
AB  - Choline chloride (ChCl)-based deep eutectic solvents (DESs) with different amides or polyols as hydrogen bond donors were tested as cosolvents in the ethanolysis of expired sunflower oil catalyzed by either calcined or non-calcined CaO. These cosolvents promoted the ethanolysis by a successful activation of non-calcined CaO, which was ascribed to the CaCO3 and Ca(OH)2 dissolution from the surface of the solid catalyst particles. With both calcined and non-calcined CaO, the polyol-based solvents gave higher fatty acid ethyl esters (FAEE) content than the amide-based solvents. Among the amide-based DESs, choline chloride:urea (ChCl:U) was the most efficient activator of non-calcined CaO. Choline chloride:ethylene glycol (ChCl:EG) and choline chloride:propylene glycol (ChCl:PG) were more efficient than choline chloride:glycerol (ChCl:G) even with non-calcined CaO. However, ChCl:G might be more suitable than the others since the use of glycerol, a by-product of the ethanolysis, could reduce the overall biodiesel production costs. FTIR and XRD analyses of the used and separated CaO were performed in order to get more insight into the catalytically active phase(s). Also, the mechanisms of the CaO activation in the presence of the DESs were considered. The phase separation of the reaction mixture was faster in the presence of the DESs. Since ChCl:U and ChCl:G DESs are nontoxic, biodegradable, biorenewable and “green” solvents and provide the elimination of the calcination step of CaO, thus reducing the overall process costs, the non-calcined CaO catalytic systems with these DESs are recommended for further optimization. © 2018 Elsevier B.V.
PB  - Elsevier
T2  - Journal of Molecular Liquids
T1  - Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil
SP  - 557
EP  - 567
VL  - 266
DO  - 10.1016/j.molliq.2018.06.106
ER  - 
@article{
author = "Troter, Dragan Z. and Todorović, Zoran B. and Đokić Stojanović, Dušica R. and Veselinović, Ljiljana and Zdujić, Miodrag and Veljković, Vlada B.",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/3694",
abstract = "Choline chloride (ChCl)-based deep eutectic solvents (DESs) with different amides or polyols as hydrogen bond donors were tested as cosolvents in the ethanolysis of expired sunflower oil catalyzed by either calcined or non-calcined CaO. These cosolvents promoted the ethanolysis by a successful activation of non-calcined CaO, which was ascribed to the CaCO3 and Ca(OH)2 dissolution from the surface of the solid catalyst particles. With both calcined and non-calcined CaO, the polyol-based solvents gave higher fatty acid ethyl esters (FAEE) content than the amide-based solvents. Among the amide-based DESs, choline chloride:urea (ChCl:U) was the most efficient activator of non-calcined CaO. Choline chloride:ethylene glycol (ChCl:EG) and choline chloride:propylene glycol (ChCl:PG) were more efficient than choline chloride:glycerol (ChCl:G) even with non-calcined CaO. However, ChCl:G might be more suitable than the others since the use of glycerol, a by-product of the ethanolysis, could reduce the overall biodiesel production costs. FTIR and XRD analyses of the used and separated CaO were performed in order to get more insight into the catalytically active phase(s). Also, the mechanisms of the CaO activation in the presence of the DESs were considered. The phase separation of the reaction mixture was faster in the presence of the DESs. Since ChCl:U and ChCl:G DESs are nontoxic, biodegradable, biorenewable and “green” solvents and provide the elimination of the calcination step of CaO, thus reducing the overall process costs, the non-calcined CaO catalytic systems with these DESs are recommended for further optimization. © 2018 Elsevier B.V.",
publisher = "Elsevier",
journal = "Journal of Molecular Liquids",
title = "Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil",
pages = "557-567",
volume = "266",
doi = "10.1016/j.molliq.2018.06.106"
}
Troter, D. Z., Todorović, Z. B., Đokić Stojanović, D. R., Veselinović, L., Zdujić, M.,& Veljković, V. B. (2018). Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil.
Journal of Molecular Liquids
Elsevier., 266, 557-567.
https://doi.org/10.1016/j.molliq.2018.06.106
Troter DZ, Todorović ZB, Đokić Stojanović DR, Veselinović L, Zdujić M, Veljković VB. Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil. Journal of Molecular Liquids. 2018;266:557-567
Troter Dragan Z., Todorović Zoran B., Đokić Stojanović Dušica R., Veselinović Ljiljana, Zdujić Miodrag, Veljković Vlada B., "Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil" Journal of Molecular Liquids, 266 (2018):557-567,
https://doi.org/10.1016/j.molliq.2018.06.106 .
14
8
12

Supplementary material for the article: Troter, D.Z., Todorović, Z.B., Đokić-Stojanović, D.R., Veselinović, L.M., Zdujić, M.V., Veljković, V.B., 2018. Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil. Journal of Molecular Liquids 266, 557–567. https://doi.org/10.1016/j.molliq.2018.06.106

Troter, Dragan Z.; Todorović, Zoran B.; Đokić Stojanović, Dušica R.; Veselinović, Ljiljana; Zdujić, Miodrag; Veljković, Vlada B.

(2018)

TY  - BOOK
AU  - Troter, Dragan Z.
AU  - Todorović, Zoran B.
AU  - Đokić Stojanović, Dušica R.
AU  - Veselinović, Ljiljana
AU  - Zdujić, Miodrag
AU  - Veljković, Vlada B.
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/3772
T2  - Journal of Molecular Liquids
T1  - Supplementary material for the article: Troter, D.Z., Todorović, Z.B., Đokić-Stojanović, D.R., Veselinović, L.M., Zdujić, M.V., Veljković, V.B., 2018. Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil. Journal of Molecular Liquids 266, 557–567. https://doi.org/10.1016/j.molliq.2018.06.106
VL  - 266
ER  - 
@book{
author = "Troter, Dragan Z. and Todorović, Zoran B. and Đokić Stojanović, Dušica R. and Veselinović, Ljiljana and Zdujić, Miodrag and Veljković, Vlada B.",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/3772",
journal = "Journal of Molecular Liquids",
title = "Supplementary material for the article: Troter, D.Z., Todorović, Z.B., Đokić-Stojanović, D.R., Veselinović, L.M., Zdujić, M.V., Veljković, V.B., 2018. Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil. Journal of Molecular Liquids 266, 557–567. https://doi.org/10.1016/j.molliq.2018.06.106",
volume = "266"
}
Troter, D. Z., Todorović, Z. B., Đokić Stojanović, D. R., Veselinović, L., Zdujić, M.,& Veljković, V. B. (2018). Supplementary material for the article: Troter, D.Z., Todorović, Z.B., Đokić-Stojanović, D.R., Veselinović, L.M., Zdujić, M.V., Veljković, V.B., 2018. Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil. Journal of Molecular Liquids 266, 557–567. https://doi.org/10.1016/j.molliq.2018.06.106.
Journal of Molecular Liquids, 266.
Troter DZ, Todorović ZB, Đokić Stojanović DR, Veselinović L, Zdujić M, Veljković VB. Supplementary material for the article: Troter, D.Z., Todorović, Z.B., Đokić-Stojanović, D.R., Veselinović, L.M., Zdujić, M.V., Veljković, V.B., 2018. Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil. Journal of Molecular Liquids 266, 557–567. https://doi.org/10.1016/j.molliq.2018.06.106. Journal of Molecular Liquids. 2018;266
Troter Dragan Z., Todorović Zoran B., Đokić Stojanović Dušica R., Veselinović Ljiljana, Zdujić Miodrag, Veljković Vlada B., "Supplementary material for the article: Troter, D.Z., Todorović, Z.B., Đokić-Stojanović, D.R., Veselinović, L.M., Zdujić, M.V., Veljković, V.B., 2018. Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil. Journal of Molecular Liquids 266, 557–567. https://doi.org/10.1016/j.molliq.2018.06.106" Journal of Molecular Liquids, 266 (2018)

Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil

Troter, Dragan Z.; Todorović, Zoran B.; Stojanović, Đokić; Đokić Stojanović, Dušica R.; Veselinović, Ljiljana; Zdujić, Miodrag; Veljković, Vlada B.

(2018)

TY  - JOUR
AU  - Troter, Dragan Z.
AU  - Todorović, Zoran B.
AU  - Stojanović, Đokić
AU  - Đokić Stojanović, Dušica R.
AU  - Veselinović, Ljiljana
AU  - Zdujić, Miodrag
AU  - Veljković, Vlada B.
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/3802
AB  - Choline chloride (ChCl)-based deep eutectic solvents (DESs) with different amides or polyols as hydrogen bond donors were tested as cosolvents in the ethanolysis of expired sunflower oil catalyzed by either calcined or non-calcined CaO. These cosolvents promoted the ethanolysis by a successful activation of non-calcined CaO, which was ascribed to the CaCO3 and Ca(OH)2 dissolution from the surface of the solid catalyst particles. With both calcined and non-calcined CaO, the polyol-based solvents gave higher fatty acid ethyl esters (FAEE) content than the amide-based solvents. Among the amide-based DESs, choline chloride:urea (ChCl:U) was the most efficient activator of non-calcined CaO. Choline chloride:ethylene glycol (ChCl:EG) and choline chloride:propylene glycol (ChCl:PG) were more efficient than choline chloride:glycerol (ChCl:G) even with non-calcined CaO. However, ChCl:G might be more suitable than the others since the use of glycerol, a by-product of the ethanolysis, could reduce the overall biodiesel production costs. FTIR and XRD analyses of the used and separated CaO were performed in order to get more insight into the catalytically active phase(s). Also, the mechanisms of the CaO activation in the presence of the DESs were considered. The phase separation of the reaction mixture was faster in the presence of the DESs. Since ChCl:U and ChCl:G DESs are nontoxic, biodegradable, biorenewable and “green” solvents and provide the elimination of the calcination step of CaO, thus reducing the overall process costs, the non-calcined CaO catalytic systems with these DESs are recommended for further optimization. © 2018 Elsevier B.V.
T2  - Journal of Molecular Liquids
T1  - Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil
SP  - 557
EP  - 567
VL  - 266
DO  - 10.1016/j.molliq.2018.06.106
ER  - 
@article{
author = "Troter, Dragan Z. and Todorović, Zoran B. and Stojanović, Đokić and Đokić Stojanović, Dušica R. and Veselinović, Ljiljana and Zdujić, Miodrag and Veljković, Vlada B.",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/3802",
abstract = "Choline chloride (ChCl)-based deep eutectic solvents (DESs) with different amides or polyols as hydrogen bond donors were tested as cosolvents in the ethanolysis of expired sunflower oil catalyzed by either calcined or non-calcined CaO. These cosolvents promoted the ethanolysis by a successful activation of non-calcined CaO, which was ascribed to the CaCO3 and Ca(OH)2 dissolution from the surface of the solid catalyst particles. With both calcined and non-calcined CaO, the polyol-based solvents gave higher fatty acid ethyl esters (FAEE) content than the amide-based solvents. Among the amide-based DESs, choline chloride:urea (ChCl:U) was the most efficient activator of non-calcined CaO. Choline chloride:ethylene glycol (ChCl:EG) and choline chloride:propylene glycol (ChCl:PG) were more efficient than choline chloride:glycerol (ChCl:G) even with non-calcined CaO. However, ChCl:G might be more suitable than the others since the use of glycerol, a by-product of the ethanolysis, could reduce the overall biodiesel production costs. FTIR and XRD analyses of the used and separated CaO were performed in order to get more insight into the catalytically active phase(s). Also, the mechanisms of the CaO activation in the presence of the DESs were considered. The phase separation of the reaction mixture was faster in the presence of the DESs. Since ChCl:U and ChCl:G DESs are nontoxic, biodegradable, biorenewable and “green” solvents and provide the elimination of the calcination step of CaO, thus reducing the overall process costs, the non-calcined CaO catalytic systems with these DESs are recommended for further optimization. © 2018 Elsevier B.V.",
journal = "Journal of Molecular Liquids",
title = "Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil",
pages = "557-567",
volume = "266",
doi = "10.1016/j.molliq.2018.06.106"
}
Troter, D. Z., Todorović, Z. B., Stojanović, Đ., Đokić Stojanović, D. R., Veselinović, L., Zdujić, M.,& Veljković, V. B. (2018). Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil.
Journal of Molecular Liquids, 266, 557-567.
https://doi.org/10.1016/j.molliq.2018.06.106
Troter DZ, Todorović ZB, Stojanović Đ, Đokić Stojanović DR, Veselinović L, Zdujić M, Veljković VB. Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil. Journal of Molecular Liquids. 2018;266:557-567
Troter Dragan Z., Todorović Zoran B., Stojanović Đokić, Đokić Stojanović Dušica R., Veselinović Ljiljana, Zdujić Miodrag, Veljković Vlada B., "Choline chloride-based deep eutectic solvents in CaO-catalyzed ethanolysis of expired sunflower oil" Journal of Molecular Liquids, 266 (2018):557-567,
https://doi.org/10.1016/j.molliq.2018.06.106 .
14
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Structural and magnetic properties of Y1-xYbxF3 solid solution

Aleksić, Jelena; Barudžija, Tanja; Mitrić, Miodrag; Jugović, Dragana; Kostić, Ljiljana

(Belgrade : Serbian Ceramic Society, 2018)

TY  - CONF
AU  - Aleksić, Jelena
AU  - Barudžija, Tanja
AU  - Mitrić, Miodrag
AU  - Jugović, Dragana
AU  - Kostić, Ljiljana
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/4092
AB  - In this work, the polycrystalline samples Y1-xYbxF3 (x = 0.01, 0.05, 0.1, 0.25, 0.5, 0.75 and 1) were synthesized and characterized by X-ray powder diffraction and magnetic measurements. In the first stage of synthesis, mixed sesquioxides (Y1-xYbx)2O3 were obtained by ceramic technology. In the second stage, obtained mixed sesquioxides were treated with an excess of ammonium hydrogen fluoride in air at 170 °C for 20 h. In the third and last stage, Y1-xYbxF3 samples were obtained by heating the product from the second stage of synthesis at 500 °C for 3 h in an inert atmosphere. The X-ray diffraction revealed that the crystal structure of the Y1-xYbxF3 solid solution is orthorhombic (YF3 structural type). The structure refinements were done by the Rietveld full-profile method within Pnma space group. Magnetic susceptibility measurements of all samples were done in a temperature range 2-300 K by SQUID magnetometer. The relation between magnetic and structural properties was discussed.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018
T1  - Structural and magnetic properties of Y1-xYbxF3 solid solution
SP  - 99
EP  - 99
ER  - 
@conference{
author = "Aleksić, Jelena and Barudžija, Tanja and Mitrić, Miodrag and Jugović, Dragana and Kostić, Ljiljana",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/4092",
abstract = "In this work, the polycrystalline samples Y1-xYbxF3 (x = 0.01, 0.05, 0.1, 0.25, 0.5, 0.75 and 1) were synthesized and characterized by X-ray powder diffraction and magnetic measurements. In the first stage of synthesis, mixed sesquioxides (Y1-xYbx)2O3 were obtained by ceramic technology. In the second stage, obtained mixed sesquioxides were treated with an excess of ammonium hydrogen fluoride in air at 170 °C for 20 h. In the third and last stage, Y1-xYbxF3 samples were obtained by heating the product from the second stage of synthesis at 500 °C for 3 h in an inert atmosphere. The X-ray diffraction revealed that the crystal structure of the Y1-xYbxF3 solid solution is orthorhombic (YF3 structural type). The structure refinements were done by the Rietveld full-profile method within Pnma space group. Magnetic susceptibility measurements of all samples were done in a temperature range 2-300 K by SQUID magnetometer. The relation between magnetic and structural properties was discussed.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018",
title = "Structural and magnetic properties of Y1-xYbxF3 solid solution",
pages = "99-99"
}
Aleksić, J., Barudžija, T., Mitrić, M., Jugović, D.,& Kostić, L. (2018). Structural and magnetic properties of Y1-xYbxF3 solid solution.
Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018
Belgrade : Serbian Ceramic Society., 99-99.
Aleksić J, Barudžija T, Mitrić M, Jugović D, Kostić L. Structural and magnetic properties of Y1-xYbxF3 solid solution. Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018. 2018;:99-99
Aleksić Jelena, Barudžija Tanja, Mitrić Miodrag, Jugović Dragana, Kostić Ljiljana, "Structural and magnetic properties of Y1-xYbxF3 solid solution" Program and the Book of Abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application VII : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 17-19 September 2018 (2018):99-99

Synthesis of calcium oxide based catalysts for biodiesel production

Lukić, Ivana; Kesić, Željka; Zdujić, Miodrag; Skala, Dejan

(Belgrade : Society of Physical Chemists of Serbia, 2018)

TY  - CONF
AU  - Lukić, Ivana
AU  - Kesić, Željka
AU  - Zdujić, Miodrag
AU  - Skala, Dejan
PY  - 2018
UR  - http://dais.sanu.ac.rs/123456789/4563
AB  - In this work, synthesis of several types of calcium oxide based catalysts by mechanochemical treatment and subsequent calcination is presented. Prepared nanocomposite CaO·ZnO, calcium containing perovskites CaTiO3, CaMnO3, CaZrO3 and Ca2Fe2O5, a series of CaO·SiO2 mixed oxides and calcium diglyceroxide (CaDG) were characterized and tested in the methanolysis of sunflower oil under different working conditions: catalyst amount, agitation speed, temperature and methanol to oil molar ratio.
PB  - Belgrade : Society of Physical Chemists of Serbia
C3  - Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018
T1  - Synthesis of calcium oxide based catalysts for biodiesel production
SP  - 193
EP  - 196
ER  - 
@conference{
author = "Lukić, Ivana and Kesić, Željka and Zdujić, Miodrag and Skala, Dejan",
year = "2018",
url = "http://dais.sanu.ac.rs/123456789/4563",
abstract = "In this work, synthesis of several types of calcium oxide based catalysts by mechanochemical treatment and subsequent calcination is presented. Prepared nanocomposite CaO·ZnO, calcium containing perovskites CaTiO3, CaMnO3, CaZrO3 and Ca2Fe2O5, a series of CaO·SiO2 mixed oxides and calcium diglyceroxide (CaDG) were characterized and tested in the methanolysis of sunflower oil under different working conditions: catalyst amount, agitation speed, temperature and methanol to oil molar ratio.",
publisher = "Belgrade : Society of Physical Chemists of Serbia",
journal = "Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018",
title = "Synthesis of calcium oxide based catalysts for biodiesel production",
pages = "193-196"
}
Lukić, I., Kesić, Ž., Zdujić, M.,& Skala, D. (2018). Synthesis of calcium oxide based catalysts for biodiesel production.
Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018
Belgrade : Society of Physical Chemists of Serbia., 193-196.
Lukić I, Kesić Ž, Zdujić M, Skala D. Synthesis of calcium oxide based catalysts for biodiesel production. Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018. 2018;:193-196
Lukić Ivana, Kesić Željka, Zdujić Miodrag, Skala Dejan, "Synthesis of calcium oxide based catalysts for biodiesel production" Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018 (2018):193-196