TY  - JOUR
AU  - Gabrovska, Margarita
AU  - Nikolova, Dimitrinka
AU  - Krstić, Jugoslav
AU  - Lončarević, Davor
AU  - Tzvetkov, P.T.
AU  - Shopska, M.G.
AU  - Radonjić, Vojkan
AU  - Stanković, Miroslav
AU  - Jovanović, D.M.
AU  - Spasov, L.Т.
AU  - Simeonov, D.B.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2390
AB  - Mg-doped co-precipitated Ni/SIG precursors were studied as edible sunflower oil hydrogenation catalysts applying two types of commercial silica gels (SIG) as supports of different texture characteristics: a microporous type (SIG-A) and a mesoporous type (SIG-C). It was found that texture parameters of both the silica gels and magnesium addition allow obtaining of catalysts of various hydrogenation activities and fatty acid composition of the products. The results reveal the highest hydrogenation activity of MgNi/SIG-C catalyst because of higher amount and accessibility of metal nickel particles on the catalyst surface generated through reduction procedure. A dominant activity of MgNi/SIG-C catalyst is ascribed to appropriate mesoporosity, which controls diffusion. It was established that Mg-doped Ni/SIG-C possessed a capacity for use as an efficient edible vegetable oil hydrogenation catalyst due to high hydrogenation activity, high saturation level of linoleic acid (C18:2cis), moderate amounts of C18:1trans fatty acids, and C18:0 stearin acid formation in the partially hydrogenated sunflower oil.
PB  - Bulgarian Academy of Sciences
T2  - Bulgarian Chemical Communications
T1  - Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant
VL  - 50
SP  - 161
EP  - 168
UR  - https://hdl.handle.net/21.15107/rcub_cer_2390
ER  - 

@article{
author = "Gabrovska, Margarita and Nikolova, Dimitrinka and Krstić, Jugoslav and Lončarević, Davor and Tzvetkov, P.T. and Shopska, M.G. and Radonjić, Vojkan and Stanković, Miroslav and Jovanović, D.M. and Spasov, L.Т. and Simeonov, D.B.",
year = "2018",
abstract = "Mg-doped co-precipitated Ni/SIG precursors were studied as edible sunflower oil hydrogenation catalysts applying two types of commercial silica gels (SIG) as supports of different texture characteristics: a microporous type (SIG-A) and a mesoporous type (SIG-C). It was found that texture parameters of both the silica gels and magnesium addition allow obtaining of catalysts of various hydrogenation activities and fatty acid composition of the products. The results reveal the highest hydrogenation activity of MgNi/SIG-C catalyst because of higher amount and accessibility of metal nickel particles on the catalyst surface generated through reduction procedure. A dominant activity of MgNi/SIG-C catalyst is ascribed to appropriate mesoporosity, which controls diffusion. It was established that Mg-doped Ni/SIG-C possessed a capacity for use as an efficient edible vegetable oil hydrogenation catalyst due to high hydrogenation activity, high saturation level of linoleic acid (C18:2cis), moderate amounts of C18:1trans fatty acids, and C18:0 stearin acid formation in the partially hydrogenated sunflower oil.",
publisher = "Bulgarian Academy of Sciences",
journal = "Bulgarian Chemical Communications",
title = "Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant",
volume = "50",
pages = "161-168",
url = "https://hdl.handle.net/21.15107/rcub_cer_2390"
}

Gabrovska, M., Nikolova, D., Krstić, J., Lončarević, D., Tzvetkov, P.T., Shopska, M.G., Radonjić, V., Stanković, M., Jovanović, D.M., Spasov, L.Т.,& Simeonov, D.B.. (2018). Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant. in Bulgarian Chemical Communications
Bulgarian Academy of Sciences., 50, 161-168.
https://hdl.handle.net/21.15107/rcub_cer_2390

Gabrovska M, Nikolova D, Krstić J, Lončarević D, Tzvetkov P, Shopska M, Radonjić V, Stanković M, Jovanović D, Spasov L, Simeonov D. Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant. in Bulgarian Chemical Communications. 2018;50:161-168.
https://hdl.handle.net/21.15107/rcub_cer_2390 .

Gabrovska, Margarita, Nikolova, Dimitrinka, Krstić, Jugoslav, Lončarević, Davor, Tzvetkov, P.T., Shopska, M.G., Radonjić, Vojkan, Stanković, Miroslav, Jovanović, D.M., Spasov, L.Т., Simeonov, D.B., "Improved catalyst performance of Ni/SiO2 in vegetable oil hydrogenation: Impact of Mg dopant" in Bulgarian Chemical Communications, 50 (2018):161-168,
https://hdl.handle.net/21.15107/rcub_cer_2390 .

TY  - CHAP
AU  - Nastasović, Aleksandra
AU  - Sandić, Zvjezdana P.
AU  - Maksin, Danijela
AU  - Onjia, Antonije E.
AU  - Milutinović Nikolić, Aleksandra
AU  - Jovanović, D.M.
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/940
AB  - Two porous samples and one non-porous sample of crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were synthesized by suspension copolymerization and functionalized by ring-opening reaction of the pendant epoxy groups with diethylene triamine (deta). Initial PGME, as well as amino-functionalized samples, were characterized by FT-IR spectroscopy, mercury porosimetry, scanning electron microsopy and elemental analysis. The kinetics of Cr(VI) sorption by amino-functionalized PGME was investigated in batch experiments under non-competitive conditions. It was found that the porosity of PGME-deta samples plays an important role in Cr(VI) uptake. Cr(VI) sorption by macroporous amino-functionalized samples was rapid, with the uptake capacity higher than 80% after 30 minutes. Two kinetic models (the pseudo-first and the pseudo-second order) were used to determine the best-fit equation for chromium(VI) sorption by PGME-deta.
T2  - Chromium: Environmental, Medical and Materials Studies
T1  - Macroporous and non-porous amino-functionalized glycidyl methacrylate based copolymers for hexavalent chromium sorption
SP  - 155
EP  - 172
UR  - https://hdl.handle.net/21.15107/rcub_cer_940
ER  - 

@inbook{
author = "Nastasović, Aleksandra and Sandić, Zvjezdana P. and Maksin, Danijela and Onjia, Antonije E. and Milutinović Nikolić, Aleksandra and Jovanović, D.M.",
year = "2011",
abstract = "Two porous samples and one non-porous sample of crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) [abbreviated PGME] were synthesized by suspension copolymerization and functionalized by ring-opening reaction of the pendant epoxy groups with diethylene triamine (deta). Initial PGME, as well as amino-functionalized samples, were characterized by FT-IR spectroscopy, mercury porosimetry, scanning electron microsopy and elemental analysis. The kinetics of Cr(VI) sorption by amino-functionalized PGME was investigated in batch experiments under non-competitive conditions. It was found that the porosity of PGME-deta samples plays an important role in Cr(VI) uptake. Cr(VI) sorption by macroporous amino-functionalized samples was rapid, with the uptake capacity higher than 80% after 30 minutes. Two kinetic models (the pseudo-first and the pseudo-second order) were used to determine the best-fit equation for chromium(VI) sorption by PGME-deta.",
journal = "Chromium: Environmental, Medical and Materials Studies",
booktitle = "Macroporous and non-porous amino-functionalized glycidyl methacrylate based copolymers for hexavalent chromium sorption",
pages = "155-172",
url = "https://hdl.handle.net/21.15107/rcub_cer_940"
}

Nastasović, A., Sandić, Z. P., Maksin, D., Onjia, A. E., Milutinović Nikolić, A.,& Jovanović, D.M.. (2011). Macroporous and non-porous amino-functionalized glycidyl methacrylate based copolymers for hexavalent chromium sorption. in Chromium: Environmental, Medical and Materials Studies, 155-172.
https://hdl.handle.net/21.15107/rcub_cer_940

Nastasović A, Sandić ZP, Maksin D, Onjia AE, Milutinović Nikolić A, Jovanović D. Macroporous and non-porous amino-functionalized glycidyl methacrylate based copolymers for hexavalent chromium sorption. in Chromium: Environmental, Medical and Materials Studies. 2011;:155-172.
https://hdl.handle.net/21.15107/rcub_cer_940 .

Nastasović, Aleksandra, Sandić, Zvjezdana P., Maksin, Danijela, Onjia, Antonije E., Milutinović Nikolić, Aleksandra, Jovanović, D.M., "Macroporous and non-porous amino-functionalized glycidyl methacrylate based copolymers for hexavalent chromium sorption" in Chromium: Environmental, Medical and Materials Studies (2011):155-172,
https://hdl.handle.net/21.15107/rcub_cer_940 .