Hydrogen Energy - Research and Development of New Materials: Electrolytic Hydrogen Production, Hydrogen Fuel Cells, Isotope Effects

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Hydrogen Energy - Research and Development of New Materials: Electrolytic Hydrogen Production, Hydrogen Fuel Cells, Isotope Effects (en)
Водонична енергија - развој нових материјала: електролитичко добијање водоника, водоничне горивне ћелије, изотопски ефекти (sr)
Vodonična energija - razvoj novih materijala: elektrolitičko dobijanje vodonika, vodonične gorivne ćelije, izotopski efekti (sr_RS)
Authors

Publications

Green synthesis and characterization of nontoxic L-methionine capped silver and gold nanoparticles

Laban, Bojana B.; Ralević, Uroš; Petrović, Sandra; Leskovac, Andreja; Vasić Anićijević, Dragana D.; Marković, Mirjana; Vasić, Vesna M.

(2020)

TY  - JOUR
AU  - Laban, Bojana B.
AU  - Ralević, Uroš
AU  - Petrović, Sandra
AU  - Leskovac, Andreja
AU  - Vasić Anićijević, Dragana D.
AU  - Marković, Mirjana
AU  - Vasić, Vesna M.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8673
AB  - The simple green method for synthesis of stable L-Methionine (L-Met) capped silver (Ag@LM NPs) and gold (Au@LM NPs) nanoparticles (NPs) without adding any additional reduction agent or stabilizer was developed. Colloidal dispersions were characterized by UV–Vis spectrophotometry. The size and spherical shape of NPs were evaluated by transmission electron microscopy. Their surface covering was confirmed by atomic force microscopy, Fourier transform infrared spectroscopy, dynamic light scattering, and zeta potential measurements. Density functional theory calculations pointed that the preferential adsorption mode of L-Met on both Ag and Au surfaces was a vertical binding geometry via –NH2 group, while horizontal binding mode via [sbnd]S[sbnd] and –NH2 groups is also possible. The genotoxicity (evaluated by the micronucleus assay) of NPs, as well as their effects on some oxidative stress parameters (catalase activity, malondialdehyde level), were assessed in vitro using human peripheral blood cells as a model system. The influence of NPs on the morphology of lymphocyte cells studied using atomic force microscopy revealed that the membrane of cells remained unaffected after the treatment with NPs. When considering the effects of NPs on catalase activity and malondialdehyde level, neither particle type promoted oxidative stress. However, the treatment of lymphocytes with Ag@LM NPs induced a concentration-dependent enhancement of the micronuclei incidence and suppression of the cell proliferation while Au@LM NPs promoted cell proliferation, with no significant effects on micronuclei formation. The Ag@LM NPs were more prone to induce DNA damage than Au@LM NPs, which makes the latter type more suitable for further studies in nano-medicine. © 2019
T2  - Journal of Inorganic Biochemistry
T1  - Green synthesis and characterization of nontoxic L-methionine capped silver and gold nanoparticles
VL  - 204
SP  - 110958
DO  - 10.1016/j.jinorgbio.2019.110958
ER  - 
@article{
author = "Laban, Bojana B. and Ralević, Uroš and Petrović, Sandra and Leskovac, Andreja and Vasić Anićijević, Dragana D. and Marković, Mirjana and Vasić, Vesna M.",
year = "2020",
abstract = "The simple green method for synthesis of stable L-Methionine (L-Met) capped silver (Ag@LM NPs) and gold (Au@LM NPs) nanoparticles (NPs) without adding any additional reduction agent or stabilizer was developed. Colloidal dispersions were characterized by UV–Vis spectrophotometry. The size and spherical shape of NPs were evaluated by transmission electron microscopy. Their surface covering was confirmed by atomic force microscopy, Fourier transform infrared spectroscopy, dynamic light scattering, and zeta potential measurements. Density functional theory calculations pointed that the preferential adsorption mode of L-Met on both Ag and Au surfaces was a vertical binding geometry via –NH2 group, while horizontal binding mode via [sbnd]S[sbnd] and –NH2 groups is also possible. The genotoxicity (evaluated by the micronucleus assay) of NPs, as well as their effects on some oxidative stress parameters (catalase activity, malondialdehyde level), were assessed in vitro using human peripheral blood cells as a model system. The influence of NPs on the morphology of lymphocyte cells studied using atomic force microscopy revealed that the membrane of cells remained unaffected after the treatment with NPs. When considering the effects of NPs on catalase activity and malondialdehyde level, neither particle type promoted oxidative stress. However, the treatment of lymphocytes with Ag@LM NPs induced a concentration-dependent enhancement of the micronuclei incidence and suppression of the cell proliferation while Au@LM NPs promoted cell proliferation, with no significant effects on micronuclei formation. The Ag@LM NPs were more prone to induce DNA damage than Au@LM NPs, which makes the latter type more suitable for further studies in nano-medicine. © 2019",
journal = "Journal of Inorganic Biochemistry",
title = "Green synthesis and characterization of nontoxic L-methionine capped silver and gold nanoparticles",
volume = "204",
pages = "110958",
doi = "10.1016/j.jinorgbio.2019.110958"
}
Laban, B. B., Ralević, U., Petrović, S., Leskovac, A., Vasić Anićijević, D. D., Marković, M.,& Vasić, V. M.. (2020). Green synthesis and characterization of nontoxic L-methionine capped silver and gold nanoparticles. in Journal of Inorganic Biochemistry, 204, 110958.
https://doi.org/10.1016/j.jinorgbio.2019.110958
Laban BB, Ralević U, Petrović S, Leskovac A, Vasić Anićijević DD, Marković M, Vasić VM. Green synthesis and characterization of nontoxic L-methionine capped silver and gold nanoparticles. in Journal of Inorganic Biochemistry. 2020;204:110958.
doi:10.1016/j.jinorgbio.2019.110958 .
Laban, Bojana B., Ralević, Uroš, Petrović, Sandra, Leskovac, Andreja, Vasić Anićijević, Dragana D., Marković, Mirjana, Vasić, Vesna M., "Green synthesis and characterization of nontoxic L-methionine capped silver and gold nanoparticles" in Journal of Inorganic Biochemistry, 204 (2020):110958,
https://doi.org/10.1016/j.jinorgbio.2019.110958 . .
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Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues

Pijović, Milena; Janković, Bojan Ž.; Stojiljković, Dragoslava; Radojević, Miloš B.; Manić, Nebojša G.

(2020)

TY  - CHAP
AU  - Pijović, Milena
AU  - Janković, Bojan Ž.
AU  - Stojiljković, Dragoslava
AU  - Radojević, Miloš B.
AU  - Manić, Nebojša G.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8524
AB  - Thermo-analytical characterization of selected biomasses (agricultural waste and wood biomass feedstock) through the pyrolysis process was performed under dynamic conditions. Slow pyrolysis (carbonization) regime (with a heating rate below 50 °C min−1) was selected because it favours the residual solid (bio-carbon/bio-char) in the higher yields (change in the surface area of bio-char with pyrolysis conditions was dependent on the type of biomass feedstock). Comparison of results and discussions related to obtained percentage pyro char yields from thermo-chemical conversion of biomass feedstocks were generated from simultaneous thermal analysis (STA) (TGA-DTG-DTA apparatus). The analysis of gaseous products of pyrolysis was carried out using mass spectrometry (MS) technique. Releasing of the light gaseous compounds (mainly CO, CO2, CH4, and H2 non-condensable gases) was monitored simultaneously with TGA measurements. Discussion related to this issue was performed from the aspect of the syngas production, as well as the versatility of selected biomasses in the gasification process where the various gasifying agent may be in use. © Springer Nature Switzerland AG 2020.
T2  - Lecture Notes in Networks and Systems
T1  - Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues
VL  - 90
SP  - 139
EP  - 165
DO  - 10.1007/978-3-030-30853-7_9
ER  - 
@inbook{
author = "Pijović, Milena and Janković, Bojan Ž. and Stojiljković, Dragoslava and Radojević, Miloš B. and Manić, Nebojša G.",
year = "2020",
abstract = "Thermo-analytical characterization of selected biomasses (agricultural waste and wood biomass feedstock) through the pyrolysis process was performed under dynamic conditions. Slow pyrolysis (carbonization) regime (with a heating rate below 50 °C min−1) was selected because it favours the residual solid (bio-carbon/bio-char) in the higher yields (change in the surface area of bio-char with pyrolysis conditions was dependent on the type of biomass feedstock). Comparison of results and discussions related to obtained percentage pyro char yields from thermo-chemical conversion of biomass feedstocks were generated from simultaneous thermal analysis (STA) (TGA-DTG-DTA apparatus). The analysis of gaseous products of pyrolysis was carried out using mass spectrometry (MS) technique. Releasing of the light gaseous compounds (mainly CO, CO2, CH4, and H2 non-condensable gases) was monitored simultaneously with TGA measurements. Discussion related to this issue was performed from the aspect of the syngas production, as well as the versatility of selected biomasses in the gasification process where the various gasifying agent may be in use. © Springer Nature Switzerland AG 2020.",
journal = "Lecture Notes in Networks and Systems",
booktitle = "Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues",
volume = "90",
pages = "139-165",
doi = "10.1007/978-3-030-30853-7_9"
}
Pijović, M., Janković, B. Ž., Stojiljković, D., Radojević, M. B.,& Manić, N. G.. (2020). Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues. in Lecture Notes in Networks and Systems, 90, 139-165.
https://doi.org/10.1007/978-3-030-30853-7_9
Pijović M, Janković BŽ, Stojiljković D, Radojević MB, Manić NG. Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues. in Lecture Notes in Networks and Systems. 2020;90:139-165.
doi:10.1007/978-3-030-30853-7_9 .
Pijović, Milena, Janković, Bojan Ž., Stojiljković, Dragoslava, Radojević, Miloš B., Manić, Nebojša G., "Thermo-Analytical Characterization of Various Biomass Feedstocks for Assessments of Light Gaseous Compounds and Solid Residues" in Lecture Notes in Networks and Systems, 90 (2020):139-165,
https://doi.org/10.1007/978-3-030-30853-7_9 . .

Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)

Manić, Nebojša G.; Janković, Bojan Ž.; Pijović, Milena; Waisi, Hadi; Dodevski, Vladimir; Stojiljković, Dragoslava; Jovanović, Vladimir V.

(2020)

TY  - JOUR
AU  - Manić, Nebojša G.
AU  - Janković, Bojan Ž.
AU  - Pijović, Milena
AU  - Waisi, Hadi
AU  - Dodevski, Vladimir
AU  - Stojiljković, Dragoslava
AU  - Jovanović, Vladimir V.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8904
AB  - In order to clarify relationship between apricot kernel shell biomass slow pyrolysis mechanism and its main constituents (viz. hemicelluloses, cellulose and lignin), the reactivity effects of main constituents on pyrolysis characteristics were determined by the non-isothermal simultaneous thermal analysis. It was found that four-step (parallel) reaction model is suitable for studying the slow pyrolysis process, within the semi-global model which excludes the strong interaction between biomass constituents (pseudo-components). The application of the proposed model was allowed by the results obtained from KAS iterative isoconversional (model-free) approach. The valorization of the model was confirmed by the process optimization. The complex (cumulative) apricot kernel shell pyrolysis rate curves at different heating rates are successfully resolved into the individual decomposition rate curves (arising from thermal conversion of hemicelluloses, cellulose, and primary/secondary lignin fragments) by four-parameter Fraser–Suzuki function. Besides hemicelluloses and cellulose pyrolyses, the proposed model distinguishes primary and secondary lignin reactions, which enhance the gaseous products releasing (primarily CO and CO2 gases) and charification of the solid residue (increased the bio-char yield). © 2020, Akadémiai Kiadó, Budapest, Hungary.
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)
VL  - 142
IS  - 2
SP  - 565
EP  - 579
DO  - 10.1007/s10973-020-09307-5
ER  - 
@article{
author = "Manić, Nebojša G. and Janković, Bojan Ž. and Pijović, Milena and Waisi, Hadi and Dodevski, Vladimir and Stojiljković, Dragoslava and Jovanović, Vladimir V.",
year = "2020",
abstract = "In order to clarify relationship between apricot kernel shell biomass slow pyrolysis mechanism and its main constituents (viz. hemicelluloses, cellulose and lignin), the reactivity effects of main constituents on pyrolysis characteristics were determined by the non-isothermal simultaneous thermal analysis. It was found that four-step (parallel) reaction model is suitable for studying the slow pyrolysis process, within the semi-global model which excludes the strong interaction between biomass constituents (pseudo-components). The application of the proposed model was allowed by the results obtained from KAS iterative isoconversional (model-free) approach. The valorization of the model was confirmed by the process optimization. The complex (cumulative) apricot kernel shell pyrolysis rate curves at different heating rates are successfully resolved into the individual decomposition rate curves (arising from thermal conversion of hemicelluloses, cellulose, and primary/secondary lignin fragments) by four-parameter Fraser–Suzuki function. Besides hemicelluloses and cellulose pyrolyses, the proposed model distinguishes primary and secondary lignin reactions, which enhance the gaseous products releasing (primarily CO and CO2 gases) and charification of the solid residue (increased the bio-char yield). © 2020, Akadémiai Kiadó, Budapest, Hungary.",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)",
volume = "142",
number = "2",
pages = "565-579",
doi = "10.1007/s10973-020-09307-5"
}
Manić, N. G., Janković, B. Ž., Pijović, M., Waisi, H., Dodevski, V., Stojiljković, D.,& Jovanović, V. V.. (2020). Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA). in Journal of Thermal Analysis and Calorimetry, 142(2), 565-579.
https://doi.org/10.1007/s10973-020-09307-5
Manić NG, Janković BŽ, Pijović M, Waisi H, Dodevski V, Stojiljković D, Jovanović VV. Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA). in Journal of Thermal Analysis and Calorimetry. 2020;142(2):565-579.
doi:10.1007/s10973-020-09307-5 .
Manić, Nebojša G., Janković, Bojan Ž., Pijović, Milena, Waisi, Hadi, Dodevski, Vladimir, Stojiljković, Dragoslava, Jovanović, Vladimir V., "Apricot kernel shells pyrolysis controlled by non-isothermal simultaneous thermal analysis (STA)" in Journal of Thermal Analysis and Calorimetry, 142, no. 2 (2020):565-579,
https://doi.org/10.1007/s10973-020-09307-5 . .
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7
18

Macroporous monoliths based оn natural mineral sources, clay аnd diatomite

Kokunešoski, Maja; Stanković, Miroslav; Vuković, Marina; Majstorović, Jelena; Šaponjić, Đorđe; Ilić, Svetlana; Šaponjić, Aleksandra

(2020)

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Stanković, Miroslav
AU  - Vuković, Marina
AU  - Majstorović, Jelena
AU  - Šaponjić, Đorđe
AU  - Ilić, Svetlana
AU  - Šaponjić, Aleksandra
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9790
AB  - Macroporous silica ceramic was obtained using clay and diatomite. Boric acid as a low-cost additive in the amount of 1 wt% was used. These porous materials were obtained at low forming pressure (40-80 MPa) and lower sintering temperature (850-1300 ºC) for 4h in air. The influence of boric acid, forming pressure, and sintering temperature on the microstructure, porosity parameters, and mechanical properties of obtained porous monoliths were investigated. As-received and the modified samples were characterized by X-ray diffraction, FTIR, SEM, and mercury porosimetry measurements. As for modified clay and diatomite, they were pressed at 60 MPa and then sintered at 1150 ºC, obtaining porosities of about 10 % and 60 %, respectively. Both of the analyzed samples had the pore diameter in the range of macroporous materials. The pore diameters of clay samples are ranging from 0.1-10 μm, whereas the pore diameter of diatomite samples was slightly lower with values ranging from 0.05-5 μm. Modified diatomite samples have a lower Young modulus in comparison to modified clay samples.
T2  - Science of Sintering
T1  - Macroporous monoliths based оn natural mineral sources, clay аnd diatomite
VL  - 52
IS  - 3
SP  - 339
EP  - 348
DO  - 10.2298/SOS2003339K
ER  - 
@article{
author = "Kokunešoski, Maja and Stanković, Miroslav and Vuković, Marina and Majstorović, Jelena and Šaponjić, Đorđe and Ilić, Svetlana and Šaponjić, Aleksandra",
year = "2020",
abstract = "Macroporous silica ceramic was obtained using clay and diatomite. Boric acid as a low-cost additive in the amount of 1 wt% was used. These porous materials were obtained at low forming pressure (40-80 MPa) and lower sintering temperature (850-1300 ºC) for 4h in air. The influence of boric acid, forming pressure, and sintering temperature on the microstructure, porosity parameters, and mechanical properties of obtained porous monoliths were investigated. As-received and the modified samples were characterized by X-ray diffraction, FTIR, SEM, and mercury porosimetry measurements. As for modified clay and diatomite, they were pressed at 60 MPa and then sintered at 1150 ºC, obtaining porosities of about 10 % and 60 %, respectively. Both of the analyzed samples had the pore diameter in the range of macroporous materials. The pore diameters of clay samples are ranging from 0.1-10 μm, whereas the pore diameter of diatomite samples was slightly lower with values ranging from 0.05-5 μm. Modified diatomite samples have a lower Young modulus in comparison to modified clay samples.",
journal = "Science of Sintering",
title = "Macroporous monoliths based оn natural mineral sources, clay аnd diatomite",
volume = "52",
number = "3",
pages = "339-348",
doi = "10.2298/SOS2003339K"
}
Kokunešoski, M., Stanković, M., Vuković, M., Majstorović, J., Šaponjić, Đ., Ilić, S.,& Šaponjić, A.. (2020). Macroporous monoliths based оn natural mineral sources, clay аnd diatomite. in Science of Sintering, 52(3), 339-348.
https://doi.org/10.2298/SOS2003339K
Kokunešoski M, Stanković M, Vuković M, Majstorović J, Šaponjić Đ, Ilić S, Šaponjić A. Macroporous monoliths based оn natural mineral sources, clay аnd diatomite. in Science of Sintering. 2020;52(3):339-348.
doi:10.2298/SOS2003339K .
Kokunešoski, Maja, Stanković, Miroslav, Vuković, Marina, Majstorović, Jelena, Šaponjić, Đorđe, Ilić, Svetlana, Šaponjić, Aleksandra, "Macroporous monoliths based оn natural mineral sources, clay аnd diatomite" in Science of Sintering, 52, no. 3 (2020):339-348,
https://doi.org/10.2298/SOS2003339K . .
2
3
7

Validation method for determination od PCB congeners in soil using GC-MS

Krstić, Aleksandar D.; Ječmenica Dučić, Marija; Seović, Mina; Katnić, Đurica; Pijović, Milena; Šutulović, Adrijana; Tasić, Gvozden

(Szeged : University of Szeged, 2019)

TY  - CONF
AU  - Krstić, Aleksandar D.
AU  - Ječmenica Dučić, Marija
AU  - Seović, Mina
AU  - Katnić, Đurica
AU  - Pijović, Milena
AU  - Šutulović, Adrijana
AU  - Tasić, Gvozden
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12643
AB  - Polychlorinated biphenyls (PCBs) are the most highly toxic species of POPs. More than 200 PCB congeners exist in nature. [1] PCBs are highly toxic for humans. They enter the human body via inhalation, ingestion or sorption through the skin and the bloodstream transports them to the organs, muscles and adipose tissues, where they are accumulated. This study presents the validation of analytical method for determination of 7 PCBs congeners in soil: PCB 28, PCB 52, PCB 101, PCB 118, PCB 153, and PCB 180. The method is based on solid- liquid extraction with cyclohexane and the analysis by gas chromatography with mass spectrometric detection (GC-MS). [2] Samples were analyzed in SIM mode, and the analytes qualitative confirmation was performed comparing the mass spectra of analytical standards of PCB congeners with the NIST data base. The method developed can be applied in range from 0,005 to 10 mg/kg with the appropriate parameters of precision, accuracy, repeatability and linearity and can be used for simultaneous determination of low PCBs concentrations in different types of soil (agricultural, contaminated soil, etc.).
PB  - Szeged : University of Szeged
C3  - 25th International Symposium on Analytical and Environmental Problems : proceedings
T1  - Validation method for determination od PCB congeners in soil using GC-MS
SP  - 175
EP  - 177
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12643
ER  - 
@conference{
author = "Krstić, Aleksandar D. and Ječmenica Dučić, Marija and Seović, Mina and Katnić, Đurica and Pijović, Milena and Šutulović, Adrijana and Tasić, Gvozden",
year = "2019",
abstract = "Polychlorinated biphenyls (PCBs) are the most highly toxic species of POPs. More than 200 PCB congeners exist in nature. [1] PCBs are highly toxic for humans. They enter the human body via inhalation, ingestion or sorption through the skin and the bloodstream transports them to the organs, muscles and adipose tissues, where they are accumulated. This study presents the validation of analytical method for determination of 7 PCBs congeners in soil: PCB 28, PCB 52, PCB 101, PCB 118, PCB 153, and PCB 180. The method is based on solid- liquid extraction with cyclohexane and the analysis by gas chromatography with mass spectrometric detection (GC-MS). [2] Samples were analyzed in SIM mode, and the analytes qualitative confirmation was performed comparing the mass spectra of analytical standards of PCB congeners with the NIST data base. The method developed can be applied in range from 0,005 to 10 mg/kg with the appropriate parameters of precision, accuracy, repeatability and linearity and can be used for simultaneous determination of low PCBs concentrations in different types of soil (agricultural, contaminated soil, etc.).",
publisher = "Szeged : University of Szeged",
journal = "25th International Symposium on Analytical and Environmental Problems : proceedings",
title = "Validation method for determination od PCB congeners in soil using GC-MS",
pages = "175-177",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12643"
}
Krstić, A. D., Ječmenica Dučić, M., Seović, M., Katnić, Đ., Pijović, M., Šutulović, A.,& Tasić, G.. (2019). Validation method for determination od PCB congeners in soil using GC-MS. in 25th International Symposium on Analytical and Environmental Problems : proceedings
Szeged : University of Szeged., 175-177.
https://hdl.handle.net/21.15107/rcub_vinar_12643
Krstić AD, Ječmenica Dučić M, Seović M, Katnić Đ, Pijović M, Šutulović A, Tasić G. Validation method for determination od PCB congeners in soil using GC-MS. in 25th International Symposium on Analytical and Environmental Problems : proceedings. 2019;:175-177.
https://hdl.handle.net/21.15107/rcub_vinar_12643 .
Krstić, Aleksandar D., Ječmenica Dučić, Marija, Seović, Mina, Katnić, Đurica, Pijović, Milena, Šutulović, Adrijana, Tasić, Gvozden, "Validation method for determination od PCB congeners in soil using GC-MS" in 25th International Symposium on Analytical and Environmental Problems : proceedings (2019):175-177,
https://hdl.handle.net/21.15107/rcub_vinar_12643 .

Pt/C catalyst impregnated with tungsten-oxide – Hydrogen oxidation reaction vs. CO tolerance

Brković, Snežana M.; Nikolić, Vladimir M.; Marčeta Kaninski, Milica; Pašti, Igor A.

(2019)

TY  - JOUR
AU  - Brković, Snežana M.
AU  - Nikolić, Vladimir M.
AU  - Marčeta Kaninski, Milica
AU  - Pašti, Igor A.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0360319919313576
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8150
AB  - Hydrogen Oxidation Reaction (HOR) is anode reaction in Proton exchange membrane fuel cells (PEMFCs) and it has very fast kinetics. However, the purity of fuel (H 2 ) is very important and can slow down HOR kinetics, affecting the overall PEMFC performance. The performance of commercial Pt/C catalyst impregnated with WO x, as a catalyst for HOR, was investigated using a set of electrochemical methods (cyclic voltammetry, linear scan voltammetry and rotating disk electrode voltammetry). In order to deepen the understanding how WO x species can contribute CO tolerance of Pt/C, a particular attention was paid to CO poisoning. In the absence of CO, HOR is under diffusion limitations and HOR kinetics is not affected by WO x species. Appreciable HOR current on the electrodes pre-saturated with CO ads at potentials above 0.3 V vs. RHE, which is not observed for pure Pt/C, was discussed in details. HOR liming diffusion currents for higher concentrations of W are reached at high anodic potentials. The obtained results were explained by donation of OH ads by WO x phase for CO ads removal in the mid potential region and reduced reactivity of Pt surface sites in the vicinity of the Pt|WO x interface. The obtained results can provide guidelines for development of novel CO tolerant PEMFC anode catalysts. © 2019 Hydrogen Energy Publications LLC
T2  - International Journal of Hydrogen Energy
T1  - Pt/C catalyst impregnated with tungsten-oxide – Hydrogen oxidation reaction vs. CO tolerance
VL  - 44
IS  - 26
SP  - 13364
EP  - 13372
DO  - 10.1016/j.ijhydene.2019.03.270
ER  - 
@article{
author = "Brković, Snežana M. and Nikolić, Vladimir M. and Marčeta Kaninski, Milica and Pašti, Igor A.",
year = "2019",
abstract = "Hydrogen Oxidation Reaction (HOR) is anode reaction in Proton exchange membrane fuel cells (PEMFCs) and it has very fast kinetics. However, the purity of fuel (H 2 ) is very important and can slow down HOR kinetics, affecting the overall PEMFC performance. The performance of commercial Pt/C catalyst impregnated with WO x, as a catalyst for HOR, was investigated using a set of electrochemical methods (cyclic voltammetry, linear scan voltammetry and rotating disk electrode voltammetry). In order to deepen the understanding how WO x species can contribute CO tolerance of Pt/C, a particular attention was paid to CO poisoning. In the absence of CO, HOR is under diffusion limitations and HOR kinetics is not affected by WO x species. Appreciable HOR current on the electrodes pre-saturated with CO ads at potentials above 0.3 V vs. RHE, which is not observed for pure Pt/C, was discussed in details. HOR liming diffusion currents for higher concentrations of W are reached at high anodic potentials. The obtained results were explained by donation of OH ads by WO x phase for CO ads removal in the mid potential region and reduced reactivity of Pt surface sites in the vicinity of the Pt|WO x interface. The obtained results can provide guidelines for development of novel CO tolerant PEMFC anode catalysts. © 2019 Hydrogen Energy Publications LLC",
journal = "International Journal of Hydrogen Energy",
title = "Pt/C catalyst impregnated with tungsten-oxide – Hydrogen oxidation reaction vs. CO tolerance",
volume = "44",
number = "26",
pages = "13364-13372",
doi = "10.1016/j.ijhydene.2019.03.270"
}
Brković, S. M., Nikolić, V. M., Marčeta Kaninski, M.,& Pašti, I. A.. (2019). Pt/C catalyst impregnated with tungsten-oxide – Hydrogen oxidation reaction vs. CO tolerance. in International Journal of Hydrogen Energy, 44(26), 13364-13372.
https://doi.org/10.1016/j.ijhydene.2019.03.270
Brković SM, Nikolić VM, Marčeta Kaninski M, Pašti IA. Pt/C catalyst impregnated with tungsten-oxide – Hydrogen oxidation reaction vs. CO tolerance. in International Journal of Hydrogen Energy. 2019;44(26):13364-13372.
doi:10.1016/j.ijhydene.2019.03.270 .
Brković, Snežana M., Nikolić, Vladimir M., Marčeta Kaninski, Milica, Pašti, Igor A., "Pt/C catalyst impregnated with tungsten-oxide – Hydrogen oxidation reaction vs. CO tolerance" in International Journal of Hydrogen Energy, 44, no. 26 (2019):13364-13372,
https://doi.org/10.1016/j.ijhydene.2019.03.270 . .
18
12
19

Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization

Janković, Bojan Ž.; Manić, Nebojša G.; Dodevski, Vladimir; Radović, Ivana M.; Pijović, Milena; Katnić, Đurica B.; Tasić, Gvozden S.

(2019)

TY  - JOUR
AU  - Janković, Bojan Ž.
AU  - Manić, Nebojša G.
AU  - Dodevski, Vladimir
AU  - Radović, Ivana M.
AU  - Pijović, Milena
AU  - Katnić, Đurica B.
AU  - Tasić, Gvozden S.
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8393
AB  - This paper investigates the ability of waste apricot (Prunus armeniaca) kernel shells (AKS) bio-char prepared by single-step carbonization process at 850 °C (residence time of 1 h) for possible removal of toxic elements and organic micro-pollutants. The experiment that was performed as well as parameters used proved to be optimal for bio-char production as adsorbing medium, where last issue is validated by multiform material characterization techniques. It has been shown that the produced bio-char possess highly-porous morphology features, with large specific surface area (328.570 m2 g−1). The obtained product was characterized by various pore sizes (including super-micropores and mesopores with maximum pore size of 2.24 nm) structures. Preliminary results are indicated that obtained bio-char can shows increased affinity to possible adsorption of the small organic molecule contaminants upgraded by its physico-chemical properties. Cost estimation of AKS bio-char production substantiated its cost effectiveness and its good physical and chemical properties for future design in batch adsorption and regeneration tests. It was established that AKS produced bio-char was 2.5 times cheaper than the commercially available activated carbon. Bio-char exhibits promising removal performances for potential adsorption of heavy metal and organic micro-pollutants from wastewaters systems, as indicated by material textures and spectroscopy measurements. © 2019 Elsevier Ltd
T2  - Journal of Cleaner Production
T1  - Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization
VL  - 236
SP  - 117614
DO  - 10.1016/j.jclepro.2019.117614
ER  - 
@article{
author = "Janković, Bojan Ž. and Manić, Nebojša G. and Dodevski, Vladimir and Radović, Ivana M. and Pijović, Milena and Katnić, Đurica B. and Tasić, Gvozden S.",
year = "2019",
abstract = "This paper investigates the ability of waste apricot (Prunus armeniaca) kernel shells (AKS) bio-char prepared by single-step carbonization process at 850 °C (residence time of 1 h) for possible removal of toxic elements and organic micro-pollutants. The experiment that was performed as well as parameters used proved to be optimal for bio-char production as adsorbing medium, where last issue is validated by multiform material characterization techniques. It has been shown that the produced bio-char possess highly-porous morphology features, with large specific surface area (328.570 m2 g−1). The obtained product was characterized by various pore sizes (including super-micropores and mesopores with maximum pore size of 2.24 nm) structures. Preliminary results are indicated that obtained bio-char can shows increased affinity to possible adsorption of the small organic molecule contaminants upgraded by its physico-chemical properties. Cost estimation of AKS bio-char production substantiated its cost effectiveness and its good physical and chemical properties for future design in batch adsorption and regeneration tests. It was established that AKS produced bio-char was 2.5 times cheaper than the commercially available activated carbon. Bio-char exhibits promising removal performances for potential adsorption of heavy metal and organic micro-pollutants from wastewaters systems, as indicated by material textures and spectroscopy measurements. © 2019 Elsevier Ltd",
journal = "Journal of Cleaner Production",
title = "Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization",
volume = "236",
pages = "117614",
doi = "10.1016/j.jclepro.2019.117614"
}
Janković, B. Ž., Manić, N. G., Dodevski, V., Radović, I. M., Pijović, M., Katnić, Đ. B.,& Tasić, G. S.. (2019). Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization. in Journal of Cleaner Production, 236, 117614.
https://doi.org/10.1016/j.jclepro.2019.117614
Janković BŽ, Manić NG, Dodevski V, Radović IM, Pijović M, Katnić ĐB, Tasić GS. Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization. in Journal of Cleaner Production. 2019;236:117614.
doi:10.1016/j.jclepro.2019.117614 .
Janković, Bojan Ž., Manić, Nebojša G., Dodevski, Vladimir, Radović, Ivana M., Pijović, Milena, Katnić, Đurica B., Tasić, Gvozden S., "Physico-chemical characterization of carbonized apricot kernel shell as precursor for activated carbon preparation in clean technology utilization" in Journal of Cleaner Production, 236 (2019):117614,
https://doi.org/10.1016/j.jclepro.2019.117614 . .
50
12
49

Experimental and DFT study of CoCuMo ternary ionic activator for alkaline HER on Ni cathode

Maslovara, Slađana Lj.; Vasić Anićijević, Dragana D.; Brković, Snežana M.; Georgijević, Jelena M.; Tasić, Gvozden S.; Marčeta Kaninski, Milica

(2019)

TY  - JOUR
AU  - Maslovara, Slađana Lj.
AU  - Vasić Anićijević, Dragana D.
AU  - Brković, Snežana M.
AU  - Georgijević, Jelena M.
AU  - Tasić, Gvozden S.
AU  - Marčeta Kaninski, Milica
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8115
AB  - In this work, nickel (Ni) cathode for hydrogen evolution reaction (HER) in alkaline medium, was modified by a combination of in situ ionic activators, based on three d-metals (Co, Cu and Mo). Catalytic performance of new Co-Cu-Mo cathode was improved compared to pure Ni in view of both increased HER reaction rate and improved energy efficiency - reduction of energy consumption of a model electrolytic cell by 15%. We discussed obtained results in comparison with previously investigated similar systems (Ni-Co-Mo and Ni-Cu-Mo). In addition, we perform a detailed surface characterization by a series of experimental techniques (XRF, XRD, SEM, profilometry and EIS) and employ DFT calculations to provide a more detailed discussion of the origin of obtained catalytic performance. © 2019 Elsevier B.V.
T2  - Journal of Electroanalytical Chemistry
T1  - Experimental and DFT study of CoCuMo ternary ionic activator for alkaline HER on Ni cathode
VL  - 839
SP  - 224
EP  - 230
DO  - 10.1016/j.jelechem.2019.03.044
ER  - 
@article{
author = "Maslovara, Slađana Lj. and Vasić Anićijević, Dragana D. and Brković, Snežana M. and Georgijević, Jelena M. and Tasić, Gvozden S. and Marčeta Kaninski, Milica",
year = "2019",
abstract = "In this work, nickel (Ni) cathode for hydrogen evolution reaction (HER) in alkaline medium, was modified by a combination of in situ ionic activators, based on three d-metals (Co, Cu and Mo). Catalytic performance of new Co-Cu-Mo cathode was improved compared to pure Ni in view of both increased HER reaction rate and improved energy efficiency - reduction of energy consumption of a model electrolytic cell by 15%. We discussed obtained results in comparison with previously investigated similar systems (Ni-Co-Mo and Ni-Cu-Mo). In addition, we perform a detailed surface characterization by a series of experimental techniques (XRF, XRD, SEM, profilometry and EIS) and employ DFT calculations to provide a more detailed discussion of the origin of obtained catalytic performance. © 2019 Elsevier B.V.",
journal = "Journal of Electroanalytical Chemistry",
title = "Experimental and DFT study of CoCuMo ternary ionic activator for alkaline HER on Ni cathode",
volume = "839",
pages = "224-230",
doi = "10.1016/j.jelechem.2019.03.044"
}
Maslovara, S. Lj., Vasić Anićijević, D. D., Brković, S. M., Georgijević, J. M., Tasić, G. S.,& Marčeta Kaninski, M.. (2019). Experimental and DFT study of CoCuMo ternary ionic activator for alkaline HER on Ni cathode. in Journal of Electroanalytical Chemistry, 839, 224-230.
https://doi.org/10.1016/j.jelechem.2019.03.044
Maslovara SL, Vasić Anićijević DD, Brković SM, Georgijević JM, Tasić GS, Marčeta Kaninski M. Experimental and DFT study of CoCuMo ternary ionic activator for alkaline HER on Ni cathode. in Journal of Electroanalytical Chemistry. 2019;839:224-230.
doi:10.1016/j.jelechem.2019.03.044 .
Maslovara, Slađana Lj., Vasić Anićijević, Dragana D., Brković, Snežana M., Georgijević, Jelena M., Tasić, Gvozden S., Marčeta Kaninski, Milica, "Experimental and DFT study of CoCuMo ternary ionic activator for alkaline HER on Ni cathode" in Journal of Electroanalytical Chemistry, 839 (2019):224-230,
https://doi.org/10.1016/j.jelechem.2019.03.044 . .
2
3

Synthesis and characterization of Co-Mo bimetallic carbides

Šaponjić, Aleksandra; Šaponjić, Đorđe; Perović, Ivana M.; Vuković, Marina; Nikolić, Vladimir M.; Marčeta Kaninski, Milica; Kokunešoski, Maja

(2019)

TY  - JOUR
AU  - Šaponjić, Aleksandra
AU  - Šaponjić, Đorđe
AU  - Perović, Ivana M.
AU  - Vuković, Marina
AU  - Nikolić, Vladimir M.
AU  - Marčeta Kaninski, Milica
AU  - Kokunešoski, Maja
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8598
AB  - Co-Mo carbides were prepared by impregnation with aqueous solution of metal salts and sucrose into ordered mesoporous SBA-15 silica template using carbothermal hydrogen reduction. Bimetallic Co-Mo carbide obtained by using carbothermal hydrogen reduction of Co-Mo precursors is formed when the Co-Mo molar ratio is 1.0. The obtained samples were characterized by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. Electrochemical characterization of obtained materials wеre performed by cyclic voltammetry in acid solution.
T2  - Science of Sintering
T1  - Synthesis and characterization of Co-Mo bimetallic carbides
VL  - 51
IS  - 3
SP  - 319
EP  - 326
DO  - 10.2298/SOS1903319S
ER  - 
@article{
author = "Šaponjić, Aleksandra and Šaponjić, Đorđe and Perović, Ivana M. and Vuković, Marina and Nikolić, Vladimir M. and Marčeta Kaninski, Milica and Kokunešoski, Maja",
year = "2019",
abstract = "Co-Mo carbides were prepared by impregnation with aqueous solution of metal salts and sucrose into ordered mesoporous SBA-15 silica template using carbothermal hydrogen reduction. Bimetallic Co-Mo carbide obtained by using carbothermal hydrogen reduction of Co-Mo precursors is formed when the Co-Mo molar ratio is 1.0. The obtained samples were characterized by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. Electrochemical characterization of obtained materials wеre performed by cyclic voltammetry in acid solution.",
journal = "Science of Sintering",
title = "Synthesis and characterization of Co-Mo bimetallic carbides",
volume = "51",
number = "3",
pages = "319-326",
doi = "10.2298/SOS1903319S"
}
Šaponjić, A., Šaponjić, Đ., Perović, I. M., Vuković, M., Nikolić, V. M., Marčeta Kaninski, M.,& Kokunešoski, M.. (2019). Synthesis and characterization of Co-Mo bimetallic carbides. in Science of Sintering, 51(3), 319-326.
https://doi.org/10.2298/SOS1903319S
Šaponjić A, Šaponjić Đ, Perović IM, Vuković M, Nikolić VM, Marčeta Kaninski M, Kokunešoski M. Synthesis and characterization of Co-Mo bimetallic carbides. in Science of Sintering. 2019;51(3):319-326.
doi:10.2298/SOS1903319S .
Šaponjić, Aleksandra, Šaponjić, Đorđe, Perović, Ivana M., Vuković, Marina, Nikolić, Vladimir M., Marčeta Kaninski, Milica, Kokunešoski, Maja, "Synthesis and characterization of Co-Mo bimetallic carbides" in Science of Sintering, 51, no. 3 (2019):319-326,
https://doi.org/10.2298/SOS1903319S . .
2
2
2

Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine

Kokunešoski, Maja; Kićević, Dušan; Šaponjić, Đorđe; Ilić, Svetlana M.; Egelja, Adela; Šaponjić, Aleksandra

(2019)

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Kićević, Dušan
AU  - Šaponjić, Đorđe
AU  - Ilić, Svetlana M.
AU  - Egelja, Adela
AU  - Šaponjić, Aleksandra
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10939
AB  - Ispitana je mogućnost primene metil metakrilata, MMA, kao akrilnog veziva u pripremi keramičkog praha alumine za presovanje sa namerom da se poboljša mašinska obradljivost ispresaka od alumine. Poređene su osobine ispresaka i osobine njima odgovarajućih sinterovanih uzoraka koji su pripremljeni sa i bez akrilnog veziva. Visoka gustina ispresaka sa MMA (2,35 g/cm3) u odnosu na ispreske samo od alumine (2,11 g/cm3) formiranih pod optimalnim pritiskom presovanja od 60 MPa, ukazuje na uticaj akrilata na poboljšano pakovanje praha alumine i njihovu odličnu mašinsku obradljivost; kod sinterovanih uzoraka povećana je poroznost, a smanjene su gustina i procenat linearnog skupljanja. Pokazano je da se mašinskom obradom ispresaka alumine sa MMA, mogu napraviti složene forme poput keramičkog zavrtnja ili keramički delovi sklopova, sa velikim mogućnostima komercijalne primene.
AB  - Investigated the possibility of using methyl methacrylate (MMA) as an acrylic binder in the preparation of ceramic powder of alumina for pressing with the intention of improving machinability of alumina flakes. Compared the properties of the green bodies and the properties of their corresponding sintered samples that are prepared with and without acrylic binder. The achieved higher density of green bodies with MMA (2.35 g/cm3) compared to green bodies without MMA (2.11 g/cm3) were formed under the optimal pressure of 60 MPa, indicating the improved packing of alumina powder with addition of acrylate. In the case of sintered samples, the porosities were increased, and the density and percentage of linear shrinkage were reduced. It has been shown that machining of green bodies, prepared with MMA, can be produced in the form of complex ceramic products of alumina like a screw with a nut and with great possibilities of commercial application.
T2  - Zaštita materijala
T1  - Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine
T1  - Influence of methyl methacrylate as an acrylic binder on a green machining of alumina ceramics
VL  - 60
IS  - 2
SP  - 157
EP  - 161
DO  - 10.5937/zasmat1902157K
ER  - 
@article{
author = "Kokunešoski, Maja and Kićević, Dušan and Šaponjić, Đorđe and Ilić, Svetlana M. and Egelja, Adela and Šaponjić, Aleksandra",
year = "2019",
abstract = "Ispitana je mogućnost primene metil metakrilata, MMA, kao akrilnog veziva u pripremi keramičkog praha alumine za presovanje sa namerom da se poboljša mašinska obradljivost ispresaka od alumine. Poređene su osobine ispresaka i osobine njima odgovarajućih sinterovanih uzoraka koji su pripremljeni sa i bez akrilnog veziva. Visoka gustina ispresaka sa MMA (2,35 g/cm3) u odnosu na ispreske samo od alumine (2,11 g/cm3) formiranih pod optimalnim pritiskom presovanja od 60 MPa, ukazuje na uticaj akrilata na poboljšano pakovanje praha alumine i njihovu odličnu mašinsku obradljivost; kod sinterovanih uzoraka povećana je poroznost, a smanjene su gustina i procenat linearnog skupljanja. Pokazano je da se mašinskom obradom ispresaka alumine sa MMA, mogu napraviti složene forme poput keramičkog zavrtnja ili keramički delovi sklopova, sa velikim mogućnostima komercijalne primene., Investigated the possibility of using methyl methacrylate (MMA) as an acrylic binder in the preparation of ceramic powder of alumina for pressing with the intention of improving machinability of alumina flakes. Compared the properties of the green bodies and the properties of their corresponding sintered samples that are prepared with and without acrylic binder. The achieved higher density of green bodies with MMA (2.35 g/cm3) compared to green bodies without MMA (2.11 g/cm3) were formed under the optimal pressure of 60 MPa, indicating the improved packing of alumina powder with addition of acrylate. In the case of sintered samples, the porosities were increased, and the density and percentage of linear shrinkage were reduced. It has been shown that machining of green bodies, prepared with MMA, can be produced in the form of complex ceramic products of alumina like a screw with a nut and with great possibilities of commercial application.",
journal = "Zaštita materijala",
title = "Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine, Influence of methyl methacrylate as an acrylic binder on a green machining of alumina ceramics",
volume = "60",
number = "2",
pages = "157-161",
doi = "10.5937/zasmat1902157K"
}
Kokunešoski, M., Kićević, D., Šaponjić, Đ., Ilić, S. M., Egelja, A.,& Šaponjić, A.. (2019). Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine. in Zaštita materijala, 60(2), 157-161.
https://doi.org/10.5937/zasmat1902157K
Kokunešoski M, Kićević D, Šaponjić Đ, Ilić SM, Egelja A, Šaponjić A. Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine. in Zaštita materijala. 2019;60(2):157-161.
doi:10.5937/zasmat1902157K .
Kokunešoski, Maja, Kićević, Dušan, Šaponjić, Đorđe, Ilić, Svetlana M., Egelja, Adela, Šaponjić, Aleksandra, "Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine" in Zaštita materijala, 60, no. 2 (2019):157-161,
https://doi.org/10.5937/zasmat1902157K . .
2
2

Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains

Kokunešoski, Maja; Baščarević, Zvezdana D.; Rakočević, Zlatko Lj.; Šaponjić, Aleksandra; Šaponjić, Đorđe; Jordanov, Dragana; Babić, Biljana M.

(2018)

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Baščarević, Zvezdana D.
AU  - Rakočević, Zlatko Lj.
AU  - Šaponjić, Aleksandra
AU  - Šaponjić, Đorđe
AU  - Jordanov, Dragana
AU  - Babić, Biljana M.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7650
AB  - Mesoporous silica SBA-15 materials of high specific surface area (similar to 700 m(2) g(-1)) were synthesized by using block copolymer Pluronic P123 as template and tetraethoxysilane as silica source. The obtained materials were characterized by XRD, nitrogen adsorption desorption measurements, SEM, EDS and AFM analysis. It was found that small modifications of synthesis conditions influenced the morphological features of the synthesized SBA-15 samples. The SEM analysis had shown that the SBA-15 synthesized at lower temperature and longer time of reaction (80 degrees C, 48 h) provided elongated rod-shaped grains about 1 mu m long. The other sample synthesized at higher temperature and shorter time of reaction (100 degrees C, 24 h) had rounded grains and grains of regular spherical shape with diameters ranging from 0.5 to 2 mu m. The EDS analysis confirmed that the particles of both synthesized samples were of the SiO2 content. In addition, the AFM analysis had shown different surface morphologies of the materials synthesized under various conditions.
T2  - Science of Sintering
T1  - Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains
VL  - 50
IS  - 1
SP  - 111
EP  - 121
DO  - 10.2298/SOS1801111K
ER  - 
@article{
author = "Kokunešoski, Maja and Baščarević, Zvezdana D. and Rakočević, Zlatko Lj. and Šaponjić, Aleksandra and Šaponjić, Đorđe and Jordanov, Dragana and Babić, Biljana M.",
year = "2018",
abstract = "Mesoporous silica SBA-15 materials of high specific surface area (similar to 700 m(2) g(-1)) were synthesized by using block copolymer Pluronic P123 as template and tetraethoxysilane as silica source. The obtained materials were characterized by XRD, nitrogen adsorption desorption measurements, SEM, EDS and AFM analysis. It was found that small modifications of synthesis conditions influenced the morphological features of the synthesized SBA-15 samples. The SEM analysis had shown that the SBA-15 synthesized at lower temperature and longer time of reaction (80 degrees C, 48 h) provided elongated rod-shaped grains about 1 mu m long. The other sample synthesized at higher temperature and shorter time of reaction (100 degrees C, 24 h) had rounded grains and grains of regular spherical shape with diameters ranging from 0.5 to 2 mu m. The EDS analysis confirmed that the particles of both synthesized samples were of the SiO2 content. In addition, the AFM analysis had shown different surface morphologies of the materials synthesized under various conditions.",
journal = "Science of Sintering",
title = "Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains",
volume = "50",
number = "1",
pages = "111-121",
doi = "10.2298/SOS1801111K"
}
Kokunešoski, M., Baščarević, Z. D., Rakočević, Z. Lj., Šaponjić, A., Šaponjić, Đ., Jordanov, D.,& Babić, B. M.. (2018). Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains. in Science of Sintering, 50(1), 111-121.
https://doi.org/10.2298/SOS1801111K
Kokunešoski M, Baščarević ZD, Rakočević ZL, Šaponjić A, Šaponjić Đ, Jordanov D, Babić BM. Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains. in Science of Sintering. 2018;50(1):111-121.
doi:10.2298/SOS1801111K .
Kokunešoski, Maja, Baščarević, Zvezdana D., Rakočević, Zlatko Lj., Šaponjić, Aleksandra, Šaponjić, Đorđe, Jordanov, Dragana, Babić, Biljana M., "Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains" in Science of Sintering, 50, no. 1 (2018):111-121,
https://doi.org/10.2298/SOS1801111K . .
1

Određivanja sadržaja BTEX jedinjenja u uzorcima građevinskog materijala i otpada sa mineralnim uljima kao glavnom komponentom, metodom GC/FID Headspace

Tošić, Miloš; Nikolić, Željka; Georgijević, Jelena M.; Brdarić, Tanja; Tasić, Gvozden; Nikolić, Vladimir; Milovanović, Dubravka; Marčeta Kaninski, Milica

(Belgrade : Serbian Chemical Society, 2018)

TY  - CONF
AU  - Tošić, Miloš
AU  - Nikolić, Željka
AU  - Georgijević, Jelena M.
AU  - Brdarić, Tanja
AU  - Tasić, Gvozden
AU  - Nikolić, Vladimir
AU  - Milovanović, Dubravka
AU  - Marčeta Kaninski, Milica
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12695
AB  - BTEX jedinjenja su lako isparlјiva aromatična jedinjenja, klasifikovana kao toksična jedinjenja i kao takva su opasna po zdravlje ljudii životnu sredinu. Predmet istraživanja u ovom radu su BTEX jedinjenja u uzorcima građevinskog materijala sa mineralnim uljima kao glavnom komponentom. S obzirom da su ona sastavni deo mineralnih ulja, važno je odrediti njihovo prisustvo, koncentraciju i dalju distribuciju u životnu sredinu. Tokom eksperimentalnog istraživanja, ispitivan je sadržaj BTEX jedinjenja: benzen, toluen, ksilen (o, p, m) i etilbenzen u uzorcima mineralnih ulja iz građevinskih materijala i otpada. Metoda za određivanje ovih jedinjenja, kao i za njihovu kvantifikaciju u uzorcima mineralnih ulja, razvijena je u Laboratoriji za fizičku hemiju, Instituta za nuklearne nauke „Vinča“, Univerziteta u Beogradu, modifikacijom i unapređenjem standardnih metoda[1, 2]. Za potrebe ovog istraživanja,u eksperimentalnom delu, primenom Headspace ekstrakcije sa GC-FID tehnikom, određen je kvalitativni i kvantitativni sadržaj BTEX jedinjenja, što istovremeno predstavlja i validaciju ispitivane metode, kao i određivanje njene merne nesigurnosti (Tabela 1.).Parametri za validaciju ove metode su bili: specifičnost, linearnost, granica detekcije (LOD), granica kvantifikacije (LOQ), ponovljivost i tačnost svakog jedinjenja. Primenom opisane metode postignuta je pouzdana identifikacija ispitivanih jedinjenja. Identifikacija se ostvaruje poređenjem retencionih vremena ispitivanih jedinjenja sa retencionim vremenima analitičkih standarda. FID detektor pokazuje linearan odgovor u opsegu 0,1 do 10 µg , odnosno R ≥ 0,99. Vrednosti standarda na kalibracionoj krivi su potvrdili preciznost metode. Relativna standardna devijacija RSD je ispod 5%, što dokazuje da je metoda tačna i reproduktivna [3-8]. Predstavljena metoda je validirana kao pouzdana, precizna i tačna za potrebe kontrole kvaliteta mineralnih ulja koja su korišćena ili će se koristiti u toku izgradnje građevinskih objekata, kao i za otpadni materijal.
PB  - Belgrade : Serbian Chemical Society
C3  - ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts
T1  - Određivanja sadržaja BTEX jedinjenja u uzorcima građevinskog materijala i otpada sa mineralnim uljima kao glavnom komponentom, metodom GC/FID Headspace
T1  - Determination of the BTEX compounds in building materials and waste samples containing mineral oils as the main component using Headspace GC/FID
SP  - 203
EP  - 204
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12695
ER  - 
@conference{
author = "Tošić, Miloš and Nikolić, Željka and Georgijević, Jelena M. and Brdarić, Tanja and Tasić, Gvozden and Nikolić, Vladimir and Milovanović, Dubravka and Marčeta Kaninski, Milica",
year = "2018",
abstract = "BTEX jedinjenja su lako isparlјiva aromatična jedinjenja, klasifikovana kao toksična jedinjenja i kao takva su opasna po zdravlje ljudii životnu sredinu. Predmet istraživanja u ovom radu su BTEX jedinjenja u uzorcima građevinskog materijala sa mineralnim uljima kao glavnom komponentom. S obzirom da su ona sastavni deo mineralnih ulja, važno je odrediti njihovo prisustvo, koncentraciju i dalju distribuciju u životnu sredinu. Tokom eksperimentalnog istraživanja, ispitivan je sadržaj BTEX jedinjenja: benzen, toluen, ksilen (o, p, m) i etilbenzen u uzorcima mineralnih ulja iz građevinskih materijala i otpada. Metoda za određivanje ovih jedinjenja, kao i za njihovu kvantifikaciju u uzorcima mineralnih ulja, razvijena je u Laboratoriji za fizičku hemiju, Instituta za nuklearne nauke „Vinča“, Univerziteta u Beogradu, modifikacijom i unapređenjem standardnih metoda[1, 2]. Za potrebe ovog istraživanja,u eksperimentalnom delu, primenom Headspace ekstrakcije sa GC-FID tehnikom, određen je kvalitativni i kvantitativni sadržaj BTEX jedinjenja, što istovremeno predstavlja i validaciju ispitivane metode, kao i određivanje njene merne nesigurnosti (Tabela 1.).Parametri za validaciju ove metode su bili: specifičnost, linearnost, granica detekcije (LOD), granica kvantifikacije (LOQ), ponovljivost i tačnost svakog jedinjenja. Primenom opisane metode postignuta je pouzdana identifikacija ispitivanih jedinjenja. Identifikacija se ostvaruje poređenjem retencionih vremena ispitivanih jedinjenja sa retencionim vremenima analitičkih standarda. FID detektor pokazuje linearan odgovor u opsegu 0,1 do 10 µg , odnosno R ≥ 0,99. Vrednosti standarda na kalibracionoj krivi su potvrdili preciznost metode. Relativna standardna devijacija RSD je ispod 5%, što dokazuje da je metoda tačna i reproduktivna [3-8]. Predstavljena metoda je validirana kao pouzdana, precizna i tačna za potrebe kontrole kvaliteta mineralnih ulja koja su korišćena ili će se koristiti u toku izgradnje građevinskih objekata, kao i za otpadni materijal.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts",
title = "Određivanja sadržaja BTEX jedinjenja u uzorcima građevinskog materijala i otpada sa mineralnim uljima kao glavnom komponentom, metodom GC/FID Headspace, Determination of the BTEX compounds in building materials and waste samples containing mineral oils as the main component using Headspace GC/FID",
pages = "203-204",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12695"
}
Tošić, M., Nikolić, Ž., Georgijević, J. M., Brdarić, T., Tasić, G., Nikolić, V., Milovanović, D.,& Marčeta Kaninski, M.. (2018). Određivanja sadržaja BTEX jedinjenja u uzorcima građevinskog materijala i otpada sa mineralnim uljima kao glavnom komponentom, metodom GC/FID Headspace. in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts
Belgrade : Serbian Chemical Society., 203-204.
https://hdl.handle.net/21.15107/rcub_vinar_12695
Tošić M, Nikolić Ž, Georgijević JM, Brdarić T, Tasić G, Nikolić V, Milovanović D, Marčeta Kaninski M. Određivanja sadržaja BTEX jedinjenja u uzorcima građevinskog materijala i otpada sa mineralnim uljima kao glavnom komponentom, metodom GC/FID Headspace. in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts. 2018;:203-204.
https://hdl.handle.net/21.15107/rcub_vinar_12695 .
Tošić, Miloš, Nikolić, Željka, Georgijević, Jelena M., Brdarić, Tanja, Tasić, Gvozden, Nikolić, Vladimir, Milovanović, Dubravka, Marčeta Kaninski, Milica, "Određivanja sadržaja BTEX jedinjenja u uzorcima građevinskog materijala i otpada sa mineralnim uljima kao glavnom komponentom, metodom GC/FID Headspace" in ENVIROCHEM 2018 : 8th Symposium Chemistry and Environmental Protection : program and the book of abstracts (2018):203-204,
https://hdl.handle.net/21.15107/rcub_vinar_12695 .

Improving thin film flexible supercapacitor electrode properties using ion-track technology

Laušević, Petar; Pejović, Predrag; Žugić, Dragana; Kochnev, Yuri; Apel, Pavel; Laušević, Zoran

(2018)

TY  - JOUR
AU  - Laušević, Petar
AU  - Pejović, Predrag
AU  - Žugić, Dragana
AU  - Kochnev, Yuri
AU  - Apel, Pavel
AU  - Laušević, Zoran
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7620
AB  - A novel self-supporting carbon thin film flexible supercapacitor electrode with high volumetric and areal capacitance was developed. The increase in capacitance performance is achieved by introducing channels across the carbon thin film using ion-track technology. In the first step of the electrode synthesis, latent tracks are inscribed in the starting polyimide (Kapton) foil by irradiation with 253 MeV Kr ions. Next, macropores in the form of cylindrical channels are formed by selective chemical etching with NaOCl along the ion tracks, creating ion-track polymer. With subsequent carbonization and activation of the ion-track polymer, activated ion-track carbon is produced. A range of samples are obtained by varying the chemical etching time of the irradiated polymer. In addition to channel formation the chemical etching time influences the composition of surface functional groups. The best results are obtained by chemical etching for 40 min, the thickness of the sample is 21 A mu m with channel density 2.4 x 10(6) cm(-2) and average channel diameter 430 nm. Beside cylindrical macro channels this material is mainly microporous with 0.62 nm pore diameter and shows the highest areal (494 mF/cm(2)), volumetric (224 F/cm(3)) and gravimetric (178 F/g) capacitance. As a consequence of channel formation, the rate capability of the supercapacitor was also increased.
T2  - Journal of Materials Science: Materials in Electronics
T1  - Improving thin film flexible supercapacitor electrode properties using ion-track technology
VL  - 29
IS  - 9
SP  - 7489
EP  - 7500
DO  - 10.1007/s10854-018-8740-x
ER  - 
@article{
author = "Laušević, Petar and Pejović, Predrag and Žugić, Dragana and Kochnev, Yuri and Apel, Pavel and Laušević, Zoran",
year = "2018",
abstract = "A novel self-supporting carbon thin film flexible supercapacitor electrode with high volumetric and areal capacitance was developed. The increase in capacitance performance is achieved by introducing channels across the carbon thin film using ion-track technology. In the first step of the electrode synthesis, latent tracks are inscribed in the starting polyimide (Kapton) foil by irradiation with 253 MeV Kr ions. Next, macropores in the form of cylindrical channels are formed by selective chemical etching with NaOCl along the ion tracks, creating ion-track polymer. With subsequent carbonization and activation of the ion-track polymer, activated ion-track carbon is produced. A range of samples are obtained by varying the chemical etching time of the irradiated polymer. In addition to channel formation the chemical etching time influences the composition of surface functional groups. The best results are obtained by chemical etching for 40 min, the thickness of the sample is 21 A mu m with channel density 2.4 x 10(6) cm(-2) and average channel diameter 430 nm. Beside cylindrical macro channels this material is mainly microporous with 0.62 nm pore diameter and shows the highest areal (494 mF/cm(2)), volumetric (224 F/cm(3)) and gravimetric (178 F/g) capacitance. As a consequence of channel formation, the rate capability of the supercapacitor was also increased.",
journal = "Journal of Materials Science: Materials in Electronics",
title = "Improving thin film flexible supercapacitor electrode properties using ion-track technology",
volume = "29",
number = "9",
pages = "7489-7500",
doi = "10.1007/s10854-018-8740-x"
}
Laušević, P., Pejović, P., Žugić, D., Kochnev, Y., Apel, P.,& Laušević, Z.. (2018). Improving thin film flexible supercapacitor electrode properties using ion-track technology. in Journal of Materials Science: Materials in Electronics, 29(9), 7489-7500.
https://doi.org/10.1007/s10854-018-8740-x
Laušević P, Pejović P, Žugić D, Kochnev Y, Apel P, Laušević Z. Improving thin film flexible supercapacitor electrode properties using ion-track technology. in Journal of Materials Science: Materials in Electronics. 2018;29(9):7489-7500.
doi:10.1007/s10854-018-8740-x .
Laušević, Petar, Pejović, Predrag, Žugić, Dragana, Kochnev, Yuri, Apel, Pavel, Laušević, Zoran, "Improving thin film flexible supercapacitor electrode properties using ion-track technology" in Journal of Materials Science: Materials in Electronics, 29, no. 9 (2018):7489-7500,
https://doi.org/10.1007/s10854-018-8740-x . .
1
1
1

Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3

Šaponjić, Aleksandra; Šaponjić, Đorđe; Nikolić, Violeta N.; Milošević, Maja; Marinović-Cincović, Milena; Gyoshev, Stanislav; Vuković, Marina; Kokunešoski, Maja

(2017)

TY  - JOUR
AU  - Šaponjić, Aleksandra
AU  - Šaponjić, Đorđe
AU  - Nikolić, Violeta N.
AU  - Milošević, Maja
AU  - Marinović-Cincović, Milena
AU  - Gyoshev, Stanislav
AU  - Vuković, Marina
AU  - Kokunešoski, Maja
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1644
AB  - Amorphous iron (III) oxide was obtained from clay, using ammonium hydroxide as a precipitating agent. Influence of freeze drying under vacuum, as a drying method, on particle size, chemical composition, and crystallinity of obtained iron (III) oxide powder was investigated. After freeze drying, precipitate was annealed in air at 500 C-o and 900 oC. X-ray diffraction, particle size analysis, scanning electron microscopy, energy dispersive spectrometry, Fourier transform infrared spectroscopy, thermogravimetric and differential thermal analysis were used to characterize obtained iron (III) oxide powder. All of three powders obtained by freeze drying and annealing, have low crystallinity and particles with irregular layered shape. Narrow particle size distribution was given by an average diameter value of around 50 mu m for all observed powders. Iron-bearing materials like a-Fe2O3 and gamma-Fe2O3 are obtained. Differential thermal analysis curve of obtained samples showed endothermic reaction at 620 oC which could be ascribed to phase transition from cubic form gamma- - GT alpha- Fe2O3. Thermal transformations of iron (III) oxide, obtained from clay as a natural source, is suitable to explore in the framework of materials chemistry, and opens the possibility to synthesize materials based on Fe2O3 with specific magnetic behavior.
T2  - Science of Sintering
T1  - Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3
VL  - 49
IS  - 2
SP  - 197
EP  - 205
DO  - 10.2298/SOS1702197S
ER  - 
@article{
author = "Šaponjić, Aleksandra and Šaponjić, Đorđe and Nikolić, Violeta N. and Milošević, Maja and Marinović-Cincović, Milena and Gyoshev, Stanislav and Vuković, Marina and Kokunešoski, Maja",
year = "2017",
abstract = "Amorphous iron (III) oxide was obtained from clay, using ammonium hydroxide as a precipitating agent. Influence of freeze drying under vacuum, as a drying method, on particle size, chemical composition, and crystallinity of obtained iron (III) oxide powder was investigated. After freeze drying, precipitate was annealed in air at 500 C-o and 900 oC. X-ray diffraction, particle size analysis, scanning electron microscopy, energy dispersive spectrometry, Fourier transform infrared spectroscopy, thermogravimetric and differential thermal analysis were used to characterize obtained iron (III) oxide powder. All of three powders obtained by freeze drying and annealing, have low crystallinity and particles with irregular layered shape. Narrow particle size distribution was given by an average diameter value of around 50 mu m for all observed powders. Iron-bearing materials like a-Fe2O3 and gamma-Fe2O3 are obtained. Differential thermal analysis curve of obtained samples showed endothermic reaction at 620 oC which could be ascribed to phase transition from cubic form gamma- - GT alpha- Fe2O3. Thermal transformations of iron (III) oxide, obtained from clay as a natural source, is suitable to explore in the framework of materials chemistry, and opens the possibility to synthesize materials based on Fe2O3 with specific magnetic behavior.",
journal = "Science of Sintering",
title = "Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3",
volume = "49",
number = "2",
pages = "197-205",
doi = "10.2298/SOS1702197S"
}
Šaponjić, A., Šaponjić, Đ., Nikolić, V. N., Milošević, M., Marinović-Cincović, M., Gyoshev, S., Vuković, M.,& Kokunešoski, M.. (2017). Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3. in Science of Sintering, 49(2), 197-205.
https://doi.org/10.2298/SOS1702197S
Šaponjić A, Šaponjić Đ, Nikolić VN, Milošević M, Marinović-Cincović M, Gyoshev S, Vuković M, Kokunešoski M. Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3. in Science of Sintering. 2017;49(2):197-205.
doi:10.2298/SOS1702197S .
Šaponjić, Aleksandra, Šaponjić, Đorđe, Nikolić, Violeta N., Milošević, Maja, Marinović-Cincović, Milena, Gyoshev, Stanislav, Vuković, Marina, Kokunešoski, Maja, "Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3" in Science of Sintering, 49, no. 2 (2017):197-205,
https://doi.org/10.2298/SOS1702197S . .
2
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Uticaj trokomponentnih jonskih aktivatora na povećanjе energetske efikasnosti alkalnog elektrolizera

Maslovara, Slađana Lj.

(Универзитет у Београду, Технолошко-металуршки факултет, 2017)

TY  - THES
AU  - Maslovara, Slađana Lj.
PY  - 2017
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=4961
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:15587/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=48952335
UR  - http://nardus.mpn.gov.rs/123456789/8110
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7319
AB  - Koncept koji se uobičajeno naziva vodonična energija, svodi se na primenu vodonika kao medijuma za manipulaciju energijom (proizvodnja, skladištenje, transport, primena). Najintenzivnije izučavana elektrodna reakcija, kako sa teorijskog, danas sve više i sa praktičnog aspekta, je reakcija dobijanja vodonika. Najperspektivniji način dobijanja vodonika na ovom stupnju razvoja tehnike predstavlja elektroliza vode, a debalans između termodinamički neophodnog minimuma energetskog ulaganja i stvarne potrošnje pri konačnim intenzitetima (gustinama struje), moguće je smanjiti jedino elektrokatalizom i razvojem elektrokatalizatora...
AB  - Concept which is commonly known as hydrogen energy, comprises use of hydrogen as the medium for energy management (production, storage, transport, application). Most widely studied electrode reaction from the theoretical and practical aspect is hydrogen evolution reaction (HER). Water electrolysis is among the most perspective methods at this point of technical development. Further improvement of efficacy and cost reduction is possible only through development of electrocatalysts...
PB  - Универзитет у Београду, Технолошко-металуршки факултет
T2  - Универзитет у Београду
T1  - Uticaj trokomponentnih jonskih aktivatora na povećanjе energetske efikasnosti alkalnog elektrolizera
UR  - https://hdl.handle.net/21.15107/rcub_nardus_8110
ER  - 
@phdthesis{
author = "Maslovara, Slađana Lj.",
year = "2017",
abstract = "Koncept koji se uobičajeno naziva vodonična energija, svodi se na primenu vodonika kao medijuma za manipulaciju energijom (proizvodnja, skladištenje, transport, primena). Najintenzivnije izučavana elektrodna reakcija, kako sa teorijskog, danas sve više i sa praktičnog aspekta, je reakcija dobijanja vodonika. Najperspektivniji način dobijanja vodonika na ovom stupnju razvoja tehnike predstavlja elektroliza vode, a debalans između termodinamički neophodnog minimuma energetskog ulaganja i stvarne potrošnje pri konačnim intenzitetima (gustinama struje), moguće je smanjiti jedino elektrokatalizom i razvojem elektrokatalizatora..., Concept which is commonly known as hydrogen energy, comprises use of hydrogen as the medium for energy management (production, storage, transport, application). Most widely studied electrode reaction from the theoretical and practical aspect is hydrogen evolution reaction (HER). Water electrolysis is among the most perspective methods at this point of technical development. Further improvement of efficacy and cost reduction is possible only through development of electrocatalysts...",
publisher = "Универзитет у Београду, Технолошко-металуршки факултет",
journal = "Универзитет у Београду",
title = "Uticaj trokomponentnih jonskih aktivatora na povećanjе energetske efikasnosti alkalnog elektrolizera",
url = "https://hdl.handle.net/21.15107/rcub_nardus_8110"
}
Maslovara, S. Lj.. (2017). Uticaj trokomponentnih jonskih aktivatora na povećanjе energetske efikasnosti alkalnog elektrolizera. in Универзитет у Београду
Универзитет у Београду, Технолошко-металуршки факултет..
https://hdl.handle.net/21.15107/rcub_nardus_8110
Maslovara SL. Uticaj trokomponentnih jonskih aktivatora na povećanjе energetske efikasnosti alkalnog elektrolizera. in Универзитет у Београду. 2017;.
https://hdl.handle.net/21.15107/rcub_nardus_8110 .
Maslovara, Slađana Lj., "Uticaj trokomponentnih jonskih aktivatora na povećanjе energetske efikasnosti alkalnog elektrolizera" in Универзитет у Београду (2017),
https://hdl.handle.net/21.15107/rcub_nardus_8110 .

Validation and uncertainty estimation of UPLC-PDA method for the analysis of polycyclic aromatic hydrocarbons in concrete

Aćimović, Danka D.; Nikolić, Željka; Tošić, Miloš S.; Milovanović, Dubravka S.; Nikolić, Vladimir M.; Brdarić, Tanja; Marčeta Kaninski, Milica

(2017)

TY  - JOUR
AU  - Aćimović, Danka D.
AU  - Nikolić, Željka
AU  - Tošić, Miloš S.
AU  - Milovanović, Dubravka S.
AU  - Nikolić, Vladimir M.
AU  - Brdarić, Tanja
AU  - Marčeta Kaninski, Milica
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1390
AB  - Human exposure to persistent organic contaminants, from building materials, negatively affects peoples health and overall quality of life. This paper presents the validation and uncertainty assessment of the analytical method, developed for the simultaneous determination of 16 EPA polycyclic aromatic hydrocarbons (PAHs) in solid-solid concrete by ultra-performance liquid chromatography with photo diode-array detector. Linearity of calibration curves was good over the whole range of calibration. Limits of detection varied between 0.2 and 2.9 mu gkg(-1). The accuracy in terms of recovery of the validated method is within the range from 54 to 106%. The developed method proved to be appropriate for analysis of PAHs and can be used for the quality control testing of concrete during the construction of new buildings, the old residences and related buildings associated with sick-building syndrome. In addition, this is the first reported method described for the evaluation of PAHs in solid-solid concrete. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Journal of Hazardous Materials
T1  - Validation and uncertainty estimation of UPLC-PDA method for the analysis of polycyclic aromatic hydrocarbons in concrete
VL  - 325
SP  - 271
EP  - 278
DO  - 10.1016/j.jhazmat.2016.12.008
ER  - 
@article{
author = "Aćimović, Danka D. and Nikolić, Željka and Tošić, Miloš S. and Milovanović, Dubravka S. and Nikolić, Vladimir M. and Brdarić, Tanja and Marčeta Kaninski, Milica",
year = "2017",
abstract = "Human exposure to persistent organic contaminants, from building materials, negatively affects peoples health and overall quality of life. This paper presents the validation and uncertainty assessment of the analytical method, developed for the simultaneous determination of 16 EPA polycyclic aromatic hydrocarbons (PAHs) in solid-solid concrete by ultra-performance liquid chromatography with photo diode-array detector. Linearity of calibration curves was good over the whole range of calibration. Limits of detection varied between 0.2 and 2.9 mu gkg(-1). The accuracy in terms of recovery of the validated method is within the range from 54 to 106%. The developed method proved to be appropriate for analysis of PAHs and can be used for the quality control testing of concrete during the construction of new buildings, the old residences and related buildings associated with sick-building syndrome. In addition, this is the first reported method described for the evaluation of PAHs in solid-solid concrete. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Journal of Hazardous Materials",
title = "Validation and uncertainty estimation of UPLC-PDA method for the analysis of polycyclic aromatic hydrocarbons in concrete",
volume = "325",
pages = "271-278",
doi = "10.1016/j.jhazmat.2016.12.008"
}
Aćimović, D. D., Nikolić, Ž., Tošić, M. S., Milovanović, D. S., Nikolić, V. M., Brdarić, T.,& Marčeta Kaninski, M.. (2017). Validation and uncertainty estimation of UPLC-PDA method for the analysis of polycyclic aromatic hydrocarbons in concrete. in Journal of Hazardous Materials, 325, 271-278.
https://doi.org/10.1016/j.jhazmat.2016.12.008
Aćimović DD, Nikolić Ž, Tošić MS, Milovanović DS, Nikolić VM, Brdarić T, Marčeta Kaninski M. Validation and uncertainty estimation of UPLC-PDA method for the analysis of polycyclic aromatic hydrocarbons in concrete. in Journal of Hazardous Materials. 2017;325:271-278.
doi:10.1016/j.jhazmat.2016.12.008 .
Aćimović, Danka D., Nikolić, Željka, Tošić, Miloš S., Milovanović, Dubravka S., Nikolić, Vladimir M., Brdarić, Tanja, Marčeta Kaninski, Milica, "Validation and uncertainty estimation of UPLC-PDA method for the analysis of polycyclic aromatic hydrocarbons in concrete" in Journal of Hazardous Materials, 325 (2017):271-278,
https://doi.org/10.1016/j.jhazmat.2016.12.008 . .
8
8
10

Novel photochemical advanced oxidation process for the removal of polycyclic aromatic hydrocarbons from polluted concrete

Nikolić, Vladimir M.; Karić, Slavko D.; Nikolić, Željka; Tošić, Miloš S.; Tasić, Gvozden S.; Milovanović, Dubravka S.; Marčeta Kaninski, Milica

(2017)

TY  - JOUR
AU  - Nikolić, Vladimir M.
AU  - Karić, Slavko D.
AU  - Nikolić, Željka
AU  - Tošić, Miloš S.
AU  - Tasić, Gvozden S.
AU  - Milovanović, Dubravka S.
AU  - Marčeta Kaninski, Milica
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1399
AB  - Polycyclic aromatic hydrocarbons (PAHs) are denoted by International Agency for Research on Cancer as mutagens, teratogens and carcinogenic to humans. In 2013, Vinca Institute of Nuclear Sciences was hired to determine whether PAHs are present in significant quantities in the concrete walls of newly built residential buildings (about 15,000 m(2) of apartments), and to propose appropriate technical solution for PAH removal in this case. As PAH occurrence, determination and remediation in concrete is, to our knowledge, a completely new field, it was necessary to face a number of challenges, including lack of regulations considering contents of PAHs in concrete, investigation of the origin of PAH contamination in concrete (if established), as Well as finding feasible and non-expensive remediation method, which would be appropriate for residential space. In first part of this study, a Markedly high concentrations of 5 PAHs were detected by UPLC/PDA analysis in samples of both concrete walls and mineral oil used for coating of planks during formwork, while control concrete and mineral oil, taken from independent construction site, were taken as a reference. Such coincidence, as well as the fact that mineral oil has penetrated into the concrete which is proven by ASAP/MS analysis, pointed to the mineral oil as the most probable source of PAH contamination of the concrete. In the second part, an efficient and easy-applicable method for PAH oxidation in concrete (called FHO3AOP), using UV light, H2O2 and ozone, was presented and discussed in terms of previous literature data. (C) 2016 Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Journal
T1  - Novel photochemical advanced oxidation process for the removal of polycyclic aromatic hydrocarbons from polluted concrete
VL  - 312
SP  - 99
EP  - 105
DO  - 10.1016/j.cej.2016.11.117
ER  - 
@article{
author = "Nikolić, Vladimir M. and Karić, Slavko D. and Nikolić, Željka and Tošić, Miloš S. and Tasić, Gvozden S. and Milovanović, Dubravka S. and Marčeta Kaninski, Milica",
year = "2017",
abstract = "Polycyclic aromatic hydrocarbons (PAHs) are denoted by International Agency for Research on Cancer as mutagens, teratogens and carcinogenic to humans. In 2013, Vinca Institute of Nuclear Sciences was hired to determine whether PAHs are present in significant quantities in the concrete walls of newly built residential buildings (about 15,000 m(2) of apartments), and to propose appropriate technical solution for PAH removal in this case. As PAH occurrence, determination and remediation in concrete is, to our knowledge, a completely new field, it was necessary to face a number of challenges, including lack of regulations considering contents of PAHs in concrete, investigation of the origin of PAH contamination in concrete (if established), as Well as finding feasible and non-expensive remediation method, which would be appropriate for residential space. In first part of this study, a Markedly high concentrations of 5 PAHs were detected by UPLC/PDA analysis in samples of both concrete walls and mineral oil used for coating of planks during formwork, while control concrete and mineral oil, taken from independent construction site, were taken as a reference. Such coincidence, as well as the fact that mineral oil has penetrated into the concrete which is proven by ASAP/MS analysis, pointed to the mineral oil as the most probable source of PAH contamination of the concrete. In the second part, an efficient and easy-applicable method for PAH oxidation in concrete (called FHO3AOP), using UV light, H2O2 and ozone, was presented and discussed in terms of previous literature data. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Journal",
title = "Novel photochemical advanced oxidation process for the removal of polycyclic aromatic hydrocarbons from polluted concrete",
volume = "312",
pages = "99-105",
doi = "10.1016/j.cej.2016.11.117"
}
Nikolić, V. M., Karić, S. D., Nikolić, Ž., Tošić, M. S., Tasić, G. S., Milovanović, D. S.,& Marčeta Kaninski, M.. (2017). Novel photochemical advanced oxidation process for the removal of polycyclic aromatic hydrocarbons from polluted concrete. in Chemical Engineering Journal, 312, 99-105.
https://doi.org/10.1016/j.cej.2016.11.117
Nikolić VM, Karić SD, Nikolić Ž, Tošić MS, Tasić GS, Milovanović DS, Marčeta Kaninski M. Novel photochemical advanced oxidation process for the removal of polycyclic aromatic hydrocarbons from polluted concrete. in Chemical Engineering Journal. 2017;312:99-105.
doi:10.1016/j.cej.2016.11.117 .
Nikolić, Vladimir M., Karić, Slavko D., Nikolić, Željka, Tošić, Miloš S., Tasić, Gvozden S., Milovanović, Dubravka S., Marčeta Kaninski, Milica, "Novel photochemical advanced oxidation process for the removal of polycyclic aromatic hydrocarbons from polluted concrete" in Chemical Engineering Journal, 312 (2017):99-105,
https://doi.org/10.1016/j.cej.2016.11.117 . .
11
6
10

Electrochemical oxidation of the polycyclic aromatic hydrocarbons in polluted concrete of the residential buildings

Aćimović, Danka D.; Karić, Slavko D.; Nikolić, Željka; Brdarić, Tanja; Tasić, Gvozden S.; Marčeta Kaninski, Milica; Nikolić, Vladimir M.

(2017)

TY  - JOUR
AU  - Aćimović, Danka D.
AU  - Karić, Slavko D.
AU  - Nikolić, Željka
AU  - Brdarić, Tanja
AU  - Tasić, Gvozden S.
AU  - Marčeta Kaninski, Milica
AU  - Nikolić, Vladimir M.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1352
AB  - Polycyclic aromatic hydrocarbons (PAH) have been listed by the United States Environmental Protection Agency (US EPA) and by the European Community as priority environmental pollutants. The removal of PAHs from soils, sediments and waste water has attracted attention of scientists and engineers for several decades. Electrochemical oxidation of PAH compounds in water, is receiving increasing attention, due to its convenience and simplicity. In this study we performed electrochemical oxidation of 16 EPA PAHs mixture in 10% NaCI aqueous solution in potentiostatic conditions, at voltage 1 V. Decrease of concentration of some individual PAHs, up to 70% referred to their starting concentration, after 60 min of electrolysis, was confirmed by UPLC/PDA analysis. In further work investigation was extrapolated to in situ removal of PAHs from concrete, as the medium where, to our knowledge, such way of PAH removal has not been investigated before. High concentrations of PAH contamination occurred in the concrete structure of the residential buildings in Belgrade in 2014. Application of DC voltage of 50 V between nickel and stainless steel electrodes packed in the concrete wall, moisturized with the 10% NaCI solution, led to considerable removal of the pollutants by oxidation process throughout the concrete. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Environmental Pollution
T1  - Electrochemical oxidation of the polycyclic aromatic hydrocarbons in polluted concrete of the residential buildings
VL  - 220
SP  - 393
EP  - 399
DO  - 10.1016/j.envpol.2016.09.075
ER  - 
@article{
author = "Aćimović, Danka D. and Karić, Slavko D. and Nikolić, Željka and Brdarić, Tanja and Tasić, Gvozden S. and Marčeta Kaninski, Milica and Nikolić, Vladimir M.",
year = "2017",
abstract = "Polycyclic aromatic hydrocarbons (PAH) have been listed by the United States Environmental Protection Agency (US EPA) and by the European Community as priority environmental pollutants. The removal of PAHs from soils, sediments and waste water has attracted attention of scientists and engineers for several decades. Electrochemical oxidation of PAH compounds in water, is receiving increasing attention, due to its convenience and simplicity. In this study we performed electrochemical oxidation of 16 EPA PAHs mixture in 10% NaCI aqueous solution in potentiostatic conditions, at voltage 1 V. Decrease of concentration of some individual PAHs, up to 70% referred to their starting concentration, after 60 min of electrolysis, was confirmed by UPLC/PDA analysis. In further work investigation was extrapolated to in situ removal of PAHs from concrete, as the medium where, to our knowledge, such way of PAH removal has not been investigated before. High concentrations of PAH contamination occurred in the concrete structure of the residential buildings in Belgrade in 2014. Application of DC voltage of 50 V between nickel and stainless steel electrodes packed in the concrete wall, moisturized with the 10% NaCI solution, led to considerable removal of the pollutants by oxidation process throughout the concrete. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Environmental Pollution",
title = "Electrochemical oxidation of the polycyclic aromatic hydrocarbons in polluted concrete of the residential buildings",
volume = "220",
pages = "393-399",
doi = "10.1016/j.envpol.2016.09.075"
}
Aćimović, D. D., Karić, S. D., Nikolić, Ž., Brdarić, T., Tasić, G. S., Marčeta Kaninski, M.,& Nikolić, V. M.. (2017). Electrochemical oxidation of the polycyclic aromatic hydrocarbons in polluted concrete of the residential buildings. in Environmental Pollution, 220, 393-399.
https://doi.org/10.1016/j.envpol.2016.09.075
Aćimović DD, Karić SD, Nikolić Ž, Brdarić T, Tasić GS, Marčeta Kaninski M, Nikolić VM. Electrochemical oxidation of the polycyclic aromatic hydrocarbons in polluted concrete of the residential buildings. in Environmental Pollution. 2017;220:393-399.
doi:10.1016/j.envpol.2016.09.075 .
Aćimović, Danka D., Karić, Slavko D., Nikolić, Željka, Brdarić, Tanja, Tasić, Gvozden S., Marčeta Kaninski, Milica, Nikolić, Vladimir M., "Electrochemical oxidation of the polycyclic aromatic hydrocarbons in polluted concrete of the residential buildings" in Environmental Pollution, 220 (2017):393-399,
https://doi.org/10.1016/j.envpol.2016.09.075 . .
12
5
11

Improved HER activity of Ni and stainless steel electrodes activated by NiCoMo ionic activator - A combined DFT and experimental study

Maslovara, Slađana Lj.; Vasić Anićijević, Dragana D.; Kijevčanin, Mirjana Lj.; Radović, Ivona R.; Nikolić, Vladimir M.; Laušević, Petar; Marčeta Kaninski, Milica

(2017)

TY  - JOUR
AU  - Maslovara, Slađana Lj.
AU  - Vasić Anićijević, Dragana D.
AU  - Kijevčanin, Mirjana Lj.
AU  - Radović, Ivona R.
AU  - Nikolić, Vladimir M.
AU  - Laušević, Petar
AU  - Marčeta Kaninski, Milica
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1610
AB  - In this paper we discussed various factors contributing to the improvement of hydrogen evolution reaction (HER) activity of Ni and stainless steel electrodes activated by in situ addition of NiCoMo activators, using a combination of experimental techniques and DFT calculations. By comparing energy consumption of stainless steel (SS) electrodes in a lab scale alkaline electrolyzer with and without ionic activation, we obtained reduction of energy consumption by 21% at industrial conditions (high current density and temperature). We recorded U-I curves for activated and non-activated stainless steel electrodes in the current density range from 40 to 500 mA cm(2) and in the temperature range 298-343 K, and the obtained results were used in an electrochemical model of the laboratory alkaline electrolyzer. Increase of the electrode surface upon addition of ionic activators was confirmed by profilometric measurements and SEM analysis. Finally, we applied density functional theory (DFT) to discuss partial roles of applied ionic activators (Ni, Co and Mo) in the modification and improvement of the intrinsic properties of the cathode towards the HER in alkaline medium. From the combination of profilometric, SEM and DFT results, we conclude that the main factor contributing to the improvement of HER activity of Ni electrodes upon NiCoMo activation is the increase of electrode surface area. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Improved HER activity of Ni and stainless steel electrodes activated by NiCoMo ionic activator - A combined DFT and experimental study
VL  - 42
IS  - 8
SP  - 5072
EP  - 5082
DO  - 10.1016/j.ijhydene.2016.12.116
ER  - 
@article{
author = "Maslovara, Slađana Lj. and Vasić Anićijević, Dragana D. and Kijevčanin, Mirjana Lj. and Radović, Ivona R. and Nikolić, Vladimir M. and Laušević, Petar and Marčeta Kaninski, Milica",
year = "2017",
abstract = "In this paper we discussed various factors contributing to the improvement of hydrogen evolution reaction (HER) activity of Ni and stainless steel electrodes activated by in situ addition of NiCoMo activators, using a combination of experimental techniques and DFT calculations. By comparing energy consumption of stainless steel (SS) electrodes in a lab scale alkaline electrolyzer with and without ionic activation, we obtained reduction of energy consumption by 21% at industrial conditions (high current density and temperature). We recorded U-I curves for activated and non-activated stainless steel electrodes in the current density range from 40 to 500 mA cm(2) and in the temperature range 298-343 K, and the obtained results were used in an electrochemical model of the laboratory alkaline electrolyzer. Increase of the electrode surface upon addition of ionic activators was confirmed by profilometric measurements and SEM analysis. Finally, we applied density functional theory (DFT) to discuss partial roles of applied ionic activators (Ni, Co and Mo) in the modification and improvement of the intrinsic properties of the cathode towards the HER in alkaline medium. From the combination of profilometric, SEM and DFT results, we conclude that the main factor contributing to the improvement of HER activity of Ni electrodes upon NiCoMo activation is the increase of electrode surface area. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Improved HER activity of Ni and stainless steel electrodes activated by NiCoMo ionic activator - A combined DFT and experimental study",
volume = "42",
number = "8",
pages = "5072-5082",
doi = "10.1016/j.ijhydene.2016.12.116"
}
Maslovara, S. Lj., Vasić Anićijević, D. D., Kijevčanin, M. Lj., Radović, I. R., Nikolić, V. M., Laušević, P.,& Marčeta Kaninski, M.. (2017). Improved HER activity of Ni and stainless steel electrodes activated by NiCoMo ionic activator - A combined DFT and experimental study. in International Journal of Hydrogen Energy, 42(8), 5072-5082.
https://doi.org/10.1016/j.ijhydene.2016.12.116
Maslovara SL, Vasić Anićijević DD, Kijevčanin ML, Radović IR, Nikolić VM, Laušević P, Marčeta Kaninski M. Improved HER activity of Ni and stainless steel electrodes activated by NiCoMo ionic activator - A combined DFT and experimental study. in International Journal of Hydrogen Energy. 2017;42(8):5072-5082.
doi:10.1016/j.ijhydene.2016.12.116 .
Maslovara, Slađana Lj., Vasić Anićijević, Dragana D., Kijevčanin, Mirjana Lj., Radović, Ivona R., Nikolić, Vladimir M., Laušević, Petar, Marčeta Kaninski, Milica, "Improved HER activity of Ni and stainless steel electrodes activated by NiCoMo ionic activator - A combined DFT and experimental study" in International Journal of Hydrogen Energy, 42, no. 8 (2017):5072-5082,
https://doi.org/10.1016/j.ijhydene.2016.12.116 . .
6
4
7

Ab Initio Study of Graphene Interaction with O-2, O, and O-

Vasić Anićijević, Dragana D.; Perović, Ivana M.; Maslovara, Slađana Lj.; Brković, Snežana M.; Žugić, Dragana; Laušević, Zoran; Marčeta Kaninski, Milica

(2016)

TY  - JOUR
AU  - Vasić Anićijević, Dragana D.
AU  - Perović, Ivana M.
AU  - Maslovara, Slađana Lj.
AU  - Brković, Snežana M.
AU  - Žugić, Dragana
AU  - Laušević, Zoran
AU  - Marčeta Kaninski, Milica
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1404
AB  - A systematic ab initio (DFT-GGA) study of adsorption of various oxygen species on graphene has been performed in order to find out general trends and provide a good starting point to analyze the oxidation of more complex carbon materials. Particular attention was paid to finding an appropriate supercell model. According to our findings, atomic O is characterized by stable adsorption on graphene and very strong adsorption on defective graphene. On the other hand, O-2 does not adsorb on graphene and is allowed to diffuse freely to the defect, where it is expected to dissociate into two strongly adsorbed O atoms. The obtained results were compared with available theoretical data in the literature and good agreement was achieved.
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - Ab Initio Study of Graphene Interaction with O-2, O, and O-
VL  - 35
IS  - 2
SP  - 271
EP  - 274
DO  - 10.20450/mjcce.2016.1038
ER  - 
@article{
author = "Vasić Anićijević, Dragana D. and Perović, Ivana M. and Maslovara, Slađana Lj. and Brković, Snežana M. and Žugić, Dragana and Laušević, Zoran and Marčeta Kaninski, Milica",
year = "2016",
abstract = "A systematic ab initio (DFT-GGA) study of adsorption of various oxygen species on graphene has been performed in order to find out general trends and provide a good starting point to analyze the oxidation of more complex carbon materials. Particular attention was paid to finding an appropriate supercell model. According to our findings, atomic O is characterized by stable adsorption on graphene and very strong adsorption on defective graphene. On the other hand, O-2 does not adsorb on graphene and is allowed to diffuse freely to the defect, where it is expected to dissociate into two strongly adsorbed O atoms. The obtained results were compared with available theoretical data in the literature and good agreement was achieved.",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "Ab Initio Study of Graphene Interaction with O-2, O, and O-",
volume = "35",
number = "2",
pages = "271-274",
doi = "10.20450/mjcce.2016.1038"
}
Vasić Anićijević, D. D., Perović, I. M., Maslovara, S. Lj., Brković, S. M., Žugić, D., Laušević, Z.,& Marčeta Kaninski, M.. (2016). Ab Initio Study of Graphene Interaction with O-2, O, and O-. in Macedonian Journal of Chemistry and Chemical Engineering, 35(2), 271-274.
https://doi.org/10.20450/mjcce.2016.1038
Vasić Anićijević DD, Perović IM, Maslovara SL, Brković SM, Žugić D, Laušević Z, Marčeta Kaninski M. Ab Initio Study of Graphene Interaction with O-2, O, and O-. in Macedonian Journal of Chemistry and Chemical Engineering. 2016;35(2):271-274.
doi:10.20450/mjcce.2016.1038 .
Vasić Anićijević, Dragana D., Perović, Ivana M., Maslovara, Slađana Lj., Brković, Snežana M., Žugić, Dragana, Laušević, Zoran, Marčeta Kaninski, Milica, "Ab Initio Study of Graphene Interaction with O-2, O, and O-" in Macedonian Journal of Chemistry and Chemical Engineering, 35, no. 2 (2016):271-274,
https://doi.org/10.20450/mjcce.2016.1038 . .
2
1
6

Efficient hydrogen production using ternary Ni-Cu-Mo ionic activator

Perovic, Nana M.; Aćimović, Danka D.; Tasić, Gvozden S.; Karić, Slavko D.; Laušević, Petar; Marčeta Kaninski, Milica; Nikolić, Vladimir M.

(2015)

TY  - JOUR
AU  - Perovic, Nana M.
AU  - Aćimović, Danka D.
AU  - Tasić, Gvozden S.
AU  - Karić, Slavko D.
AU  - Laušević, Petar
AU  - Marčeta Kaninski, Milica
AU  - Nikolić, Vladimir M.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/533
AB  - This manuscript presents contribution on the improved efficiency of the alkaline electrolytic production of hydrogen by in situ adding activating compounds directly into the electrolyte during the electrolytic process. New electrode material, ternary system, Ni-Cu-Mo, was applied as activating compound i.e. ionic activator. The energy requirements per mass unit of hydrogen produced is reduced for more than 10%, compared to non-activated, 30 wt. % KOH electrolyte system. Energy saving is higher at higher temperatures and at higher current densities. During the electrolytic process, the ionic activators develop nanosized porous structure deposits on the surface of the Ni electrode. Presented results point out a strong possibility of the usage of ternary ionic activators in industrial applications. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Efficient hydrogen production using ternary Ni-Cu-Mo ionic activator
VL  - 40
IS  - 19
SP  - 6270
EP  - 6275
DO  - 10.1016/j.ijhydene.2015.03.003
ER  - 
@article{
author = "Perovic, Nana M. and Aćimović, Danka D. and Tasić, Gvozden S. and Karić, Slavko D. and Laušević, Petar and Marčeta Kaninski, Milica and Nikolić, Vladimir M.",
year = "2015",
abstract = "This manuscript presents contribution on the improved efficiency of the alkaline electrolytic production of hydrogen by in situ adding activating compounds directly into the electrolyte during the electrolytic process. New electrode material, ternary system, Ni-Cu-Mo, was applied as activating compound i.e. ionic activator. The energy requirements per mass unit of hydrogen produced is reduced for more than 10%, compared to non-activated, 30 wt. % KOH electrolyte system. Energy saving is higher at higher temperatures and at higher current densities. During the electrolytic process, the ionic activators develop nanosized porous structure deposits on the surface of the Ni electrode. Presented results point out a strong possibility of the usage of ternary ionic activators in industrial applications. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Efficient hydrogen production using ternary Ni-Cu-Mo ionic activator",
volume = "40",
number = "19",
pages = "6270-6275",
doi = "10.1016/j.ijhydene.2015.03.003"
}
Perovic, N. M., Aćimović, D. D., Tasić, G. S., Karić, S. D., Laušević, P., Marčeta Kaninski, M.,& Nikolić, V. M.. (2015). Efficient hydrogen production using ternary Ni-Cu-Mo ionic activator. in International Journal of Hydrogen Energy, 40(19), 6270-6275.
https://doi.org/10.1016/j.ijhydene.2015.03.003
Perovic NM, Aćimović DD, Tasić GS, Karić SD, Laušević P, Marčeta Kaninski M, Nikolić VM. Efficient hydrogen production using ternary Ni-Cu-Mo ionic activator. in International Journal of Hydrogen Energy. 2015;40(19):6270-6275.
doi:10.1016/j.ijhydene.2015.03.003 .
Perovic, Nana M., Aćimović, Danka D., Tasić, Gvozden S., Karić, Slavko D., Laušević, Petar, Marčeta Kaninski, Milica, Nikolić, Vladimir M., "Efficient hydrogen production using ternary Ni-Cu-Mo ionic activator" in International Journal of Hydrogen Energy, 40, no. 19 (2015):6270-6275,
https://doi.org/10.1016/j.ijhydene.2015.03.003 . .
6
9
7
9

Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators

Nikolić, Vladimir M.; Maslovara, Slađana Lj.; Tasić, Gvozden S.; Brdarić, Tanja; Laušević, Petar; Radak, Bojan; Marčeta Kaninski, Milica

(2015)

TY  - JOUR
AU  - Nikolić, Vladimir M.
AU  - Maslovara, Slađana Lj.
AU  - Tasić, Gvozden S.
AU  - Brdarić, Tanja
AU  - Laušević, Petar
AU  - Radak, Bojan
AU  - Marčeta Kaninski, Milica
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/705
AB  - This paper presents investigations on the influence of in-situ ionic activation using combination of three D-metals: Ni, Co and Moon the hydrogen evolution reaction (HER) mechanism and kinetics. Polarization measurements were performed to obtain kinetic parameters for the HER and the results are presented to show Tafel slopes, exchange current densities and apparent energy of activation. The values of the kinetic parameters confirm the existence of two Tafel slopes, in the case of NiCoMo based ionic activators (i.a.) in the investigated temperature range, with very high values of the exchange current density. Electrochemical impedance spectroscopy measurements were employed to further investigate the origin of the obtained electrocatalytic effect on the HER. The measurements were performed at several overpotentials and temperatures. It was found that co-deposition of Ni, Co and Mo species on the Ni cathode results in a large number of active sites for hydrogen adsorption, and a synergetic effect giving electronic structure suitable for the HER, are the main factors contributing to the enhanced HER kinetics. It was shown that EIS measurements had a crucial role in determining the HER mechanism, especially with the complex in-situ activation of the alkaline electrolysis. (C) 2015 Published by Elsevier B.V.
T2  - Applied Catalysis. B: Environmental
T1  - Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators
VL  - 179
SP  - 88
EP  - 94
DO  - 10.1016/j.apcatb.2015.05.012
ER  - 
@article{
author = "Nikolić, Vladimir M. and Maslovara, Slađana Lj. and Tasić, Gvozden S. and Brdarić, Tanja and Laušević, Petar and Radak, Bojan and Marčeta Kaninski, Milica",
year = "2015",
abstract = "This paper presents investigations on the influence of in-situ ionic activation using combination of three D-metals: Ni, Co and Moon the hydrogen evolution reaction (HER) mechanism and kinetics. Polarization measurements were performed to obtain kinetic parameters for the HER and the results are presented to show Tafel slopes, exchange current densities and apparent energy of activation. The values of the kinetic parameters confirm the existence of two Tafel slopes, in the case of NiCoMo based ionic activators (i.a.) in the investigated temperature range, with very high values of the exchange current density. Electrochemical impedance spectroscopy measurements were employed to further investigate the origin of the obtained electrocatalytic effect on the HER. The measurements were performed at several overpotentials and temperatures. It was found that co-deposition of Ni, Co and Mo species on the Ni cathode results in a large number of active sites for hydrogen adsorption, and a synergetic effect giving electronic structure suitable for the HER, are the main factors contributing to the enhanced HER kinetics. It was shown that EIS measurements had a crucial role in determining the HER mechanism, especially with the complex in-situ activation of the alkaline electrolysis. (C) 2015 Published by Elsevier B.V.",
journal = "Applied Catalysis. B: Environmental",
title = "Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators",
volume = "179",
pages = "88-94",
doi = "10.1016/j.apcatb.2015.05.012"
}
Nikolić, V. M., Maslovara, S. Lj., Tasić, G. S., Brdarić, T., Laušević, P., Radak, B.,& Marčeta Kaninski, M.. (2015). Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators. in Applied Catalysis. B: Environmental, 179, 88-94.
https://doi.org/10.1016/j.apcatb.2015.05.012
Nikolić VM, Maslovara SL, Tasić GS, Brdarić T, Laušević P, Radak B, Marčeta Kaninski M. Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators. in Applied Catalysis. B: Environmental. 2015;179:88-94.
doi:10.1016/j.apcatb.2015.05.012 .
Nikolić, Vladimir M., Maslovara, Slađana Lj., Tasić, Gvozden S., Brdarić, Tanja, Laušević, Petar, Radak, Bojan, Marčeta Kaninski, Milica, "Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators" in Applied Catalysis. B: Environmental, 179 (2015):88-94,
https://doi.org/10.1016/j.apcatb.2015.05.012 . .
107
78
111

Electrochemistry of cobalt ethylenediamine complexes at high pH

Miulović, Snežana M.; Nikolić, Vladimir M.; Laušević, Petar; Aćimović, Danka D.; Tasić, Gvozden S.; Marčeta Kaninski, Milica

(2015)

TY  - JOUR
AU  - Miulović, Snežana M.
AU  - Nikolić, Vladimir M.
AU  - Laušević, Petar
AU  - Aćimović, Danka D.
AU  - Tasić, Gvozden S.
AU  - Marčeta Kaninski, Milica
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/868
AB  - The electrochemical behavior of cobalt ethylenediamine complexes (Co(en)), at pH 12 was investigated by cyclic voltammetry (CV), the potentiostatic pulse technique and polarization curve measurements at stationary and rotating glassy carbon (GC) electrodes. It was shown that sixteen different species could be formed in a solution containing Co(en)3, with the most stable one at all pH values being [Co(en)(3)](3+). The reduction of [Co(en)(3)](3+) into [Co(en)(3)](2+) was shown to be a totally irreversible, one-electron exchange reaction. Further reduction of [Co(en)(3)](2+) was found to be a complex process leading to cobalt deposition at potentials more negative than -1.45 V vs. SCE. The process of [Co(en)(3)](2+) oxidation was also complex and most probably coupled with chemical reactions.
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemistry of cobalt ethylenediamine complexes at high pH
VL  - 80
IS  - 12
SP  - 1515
EP  - 1527
DO  - 10.2298/JSC150327079M
ER  - 
@article{
author = "Miulović, Snežana M. and Nikolić, Vladimir M. and Laušević, Petar and Aćimović, Danka D. and Tasić, Gvozden S. and Marčeta Kaninski, Milica",
year = "2015",
abstract = "The electrochemical behavior of cobalt ethylenediamine complexes (Co(en)), at pH 12 was investigated by cyclic voltammetry (CV), the potentiostatic pulse technique and polarization curve measurements at stationary and rotating glassy carbon (GC) electrodes. It was shown that sixteen different species could be formed in a solution containing Co(en)3, with the most stable one at all pH values being [Co(en)(3)](3+). The reduction of [Co(en)(3)](3+) into [Co(en)(3)](2+) was shown to be a totally irreversible, one-electron exchange reaction. Further reduction of [Co(en)(3)](2+) was found to be a complex process leading to cobalt deposition at potentials more negative than -1.45 V vs. SCE. The process of [Co(en)(3)](2+) oxidation was also complex and most probably coupled with chemical reactions.",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemistry of cobalt ethylenediamine complexes at high pH",
volume = "80",
number = "12",
pages = "1515-1527",
doi = "10.2298/JSC150327079M"
}
Miulović, S. M., Nikolić, V. M., Laušević, P., Aćimović, D. D., Tasić, G. S.,& Marčeta Kaninski, M.. (2015). Electrochemistry of cobalt ethylenediamine complexes at high pH. in Journal of the Serbian Chemical Society, 80(12), 1515-1527.
https://doi.org/10.2298/JSC150327079M
Miulović SM, Nikolić VM, Laušević P, Aćimović DD, Tasić GS, Marčeta Kaninski M. Electrochemistry of cobalt ethylenediamine complexes at high pH. in Journal of the Serbian Chemical Society. 2015;80(12):1515-1527.
doi:10.2298/JSC150327079M .
Miulović, Snežana M., Nikolić, Vladimir M., Laušević, Petar, Aćimović, Danka D., Tasić, Gvozden S., Marčeta Kaninski, Milica, "Electrochemistry of cobalt ethylenediamine complexes at high pH" in Journal of the Serbian Chemical Society, 80, no. 12 (2015):1515-1527,
https://doi.org/10.2298/JSC150327079M . .
2
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Structure, chemisorption properties and electrocatalysis by Pd3Au overlayers on tungsten carbide - A DFT study

Vasić Anićijević, Dragana D.; Nikolić, Vladimir M.; Marčeta Kaninski, Milica; Pašti, Igor A.

(2015)

TY  - JOUR
AU  - Vasić Anićijević, Dragana D.
AU  - Nikolić, Vladimir M.
AU  - Marčeta Kaninski, Milica
AU  - Pašti, Igor A.
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/528
AB  - Tungsten carbide (WC) is in the focus of current research as a suitable electrocatalyst support. Typically, supported monometallic system are investigated, in spite the fact that practice in catalysis shows that multimetallic systems can have significantly better performance compared to monometallic counterparts. In this work, WC-supported Pd3Au overlayers were studied theoretically using periodic Density Functional Theory calculations and compared to bulk-like Pd3Au and pure Pd. Stability of studied surfaces and the electronic structures were analyzed. Chemisorption properties were probed using atomic H and CO molecule. Electrocatalytic activities of studied surfaces were estimated using hydrogen binding energy as catalytic activity descriptor for hydrogen electrode reactions. The connection between H binding energy and CO adsorption energy enabled us to establish the link between catalytic activity and CO tolerance of studied surfaces. It is considered that formation of bimetallic layers on WC opens a new perspective in designing new core-shell electrocatalysts with high performance and significantly reduced content of noble metals. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Structure, chemisorption properties and electrocatalysis by Pd3Au overlayers on tungsten carbide - A DFT study
VL  - 40
IS  - 18
SP  - 6085
EP  - 6096
DO  - 10.1016/j.ijhydene.2015.03.083
ER  - 
@article{
author = "Vasić Anićijević, Dragana D. and Nikolić, Vladimir M. and Marčeta Kaninski, Milica and Pašti, Igor A.",
year = "2015",
abstract = "Tungsten carbide (WC) is in the focus of current research as a suitable electrocatalyst support. Typically, supported monometallic system are investigated, in spite the fact that practice in catalysis shows that multimetallic systems can have significantly better performance compared to monometallic counterparts. In this work, WC-supported Pd3Au overlayers were studied theoretically using periodic Density Functional Theory calculations and compared to bulk-like Pd3Au and pure Pd. Stability of studied surfaces and the electronic structures were analyzed. Chemisorption properties were probed using atomic H and CO molecule. Electrocatalytic activities of studied surfaces were estimated using hydrogen binding energy as catalytic activity descriptor for hydrogen electrode reactions. The connection between H binding energy and CO adsorption energy enabled us to establish the link between catalytic activity and CO tolerance of studied surfaces. It is considered that formation of bimetallic layers on WC opens a new perspective in designing new core-shell electrocatalysts with high performance and significantly reduced content of noble metals. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Structure, chemisorption properties and electrocatalysis by Pd3Au overlayers on tungsten carbide - A DFT study",
volume = "40",
number = "18",
pages = "6085-6096",
doi = "10.1016/j.ijhydene.2015.03.083"
}
Vasić Anićijević, D. D., Nikolić, V. M., Marčeta Kaninski, M.,& Pašti, I. A.. (2015). Structure, chemisorption properties and electrocatalysis by Pd3Au overlayers on tungsten carbide - A DFT study. in International Journal of Hydrogen Energy, 40(18), 6085-6096.
https://doi.org/10.1016/j.ijhydene.2015.03.083
Vasić Anićijević DD, Nikolić VM, Marčeta Kaninski M, Pašti IA. Structure, chemisorption properties and electrocatalysis by Pd3Au overlayers on tungsten carbide - A DFT study. in International Journal of Hydrogen Energy. 2015;40(18):6085-6096.
doi:10.1016/j.ijhydene.2015.03.083 .
Vasić Anićijević, Dragana D., Nikolić, Vladimir M., Marčeta Kaninski, Milica, Pašti, Igor A., "Structure, chemisorption properties and electrocatalysis by Pd3Au overlayers on tungsten carbide - A DFT study" in International Journal of Hydrogen Energy, 40, no. 18 (2015):6085-6096,
https://doi.org/10.1016/j.ijhydene.2015.03.083 . .
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On the tungsten carbide synthesis for PEM fuel cell application - Problems, challenges and advantages

Nikolić, Vladimir M.; Perović, Ivana M.; Gavrilov, Nemanja M.; Pašti, Igor A.; Šaponjić, Aleksandra; Vulić, Predrag J.; Karić, Slavko D.; Babić, Biljana M.; Marčeta Kaninski, Milica

(2014)

TY  - JOUR
AU  - Nikolić, Vladimir M.
AU  - Perović, Ivana M.
AU  - Gavrilov, Nemanja M.
AU  - Pašti, Igor A.
AU  - Šaponjić, Aleksandra
AU  - Vulić, Predrag J.
AU  - Karić, Slavko D.
AU  - Babić, Biljana M.
AU  - Marčeta Kaninski, Milica
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6072
AB  - Fuel cell application of tungsten carbide is revisited starting with four different tungsten carbide precursors used for high temperature synthesis. It was shown that the final products greatly depend on the nature of the precursor. Using tungsten peroxide/2-propanol derived precursor almost pure WC was obtained which was subjected to further electrochemical investigation. It was shown that it is necessary to decorate WC with Pt nanoparticles in order to obtain satisfactory fuel cell performance, but catalytic activity of Pt/WC anode catalyst is not expected to overcome the activity of Pt/C. It is argued that new synthetic routes for the preparation of WC should be directed towards obtaining highly dispersed WC, that is, WC with high external surface area available for Pt deposition, rather than high specific surface area WC with large contribution of micropores having no importance when it comes to the use of WC as a catalyst support. The true benefit of the use of WC as catalyst support is found in increased CO tolerance/CO oxidation activity of WC-supported Pt catalysts. Qualitative mechanistic view on increased CO oxidation activity of Pt/WC is offered. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - On the tungsten carbide synthesis for PEM fuel cell application - Problems, challenges and advantages
VL  - 39
IS  - 21
SP  - 11175
EP  - 11185
DO  - 10.1016/j.ijhydene.2014.05.078
ER  - 
@article{
author = "Nikolić, Vladimir M. and Perović, Ivana M. and Gavrilov, Nemanja M. and Pašti, Igor A. and Šaponjić, Aleksandra and Vulić, Predrag J. and Karić, Slavko D. and Babić, Biljana M. and Marčeta Kaninski, Milica",
year = "2014",
abstract = "Fuel cell application of tungsten carbide is revisited starting with four different tungsten carbide precursors used for high temperature synthesis. It was shown that the final products greatly depend on the nature of the precursor. Using tungsten peroxide/2-propanol derived precursor almost pure WC was obtained which was subjected to further electrochemical investigation. It was shown that it is necessary to decorate WC with Pt nanoparticles in order to obtain satisfactory fuel cell performance, but catalytic activity of Pt/WC anode catalyst is not expected to overcome the activity of Pt/C. It is argued that new synthetic routes for the preparation of WC should be directed towards obtaining highly dispersed WC, that is, WC with high external surface area available for Pt deposition, rather than high specific surface area WC with large contribution of micropores having no importance when it comes to the use of WC as a catalyst support. The true benefit of the use of WC as catalyst support is found in increased CO tolerance/CO oxidation activity of WC-supported Pt catalysts. Qualitative mechanistic view on increased CO oxidation activity of Pt/WC is offered. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "On the tungsten carbide synthesis for PEM fuel cell application - Problems, challenges and advantages",
volume = "39",
number = "21",
pages = "11175-11185",
doi = "10.1016/j.ijhydene.2014.05.078"
}
Nikolić, V. M., Perović, I. M., Gavrilov, N. M., Pašti, I. A., Šaponjić, A., Vulić, P. J., Karić, S. D., Babić, B. M.,& Marčeta Kaninski, M.. (2014). On the tungsten carbide synthesis for PEM fuel cell application - Problems, challenges and advantages. in International Journal of Hydrogen Energy, 39(21), 11175-11185.
https://doi.org/10.1016/j.ijhydene.2014.05.078
Nikolić VM, Perović IM, Gavrilov NM, Pašti IA, Šaponjić A, Vulić PJ, Karić SD, Babić BM, Marčeta Kaninski M. On the tungsten carbide synthesis for PEM fuel cell application - Problems, challenges and advantages. in International Journal of Hydrogen Energy. 2014;39(21):11175-11185.
doi:10.1016/j.ijhydene.2014.05.078 .
Nikolić, Vladimir M., Perović, Ivana M., Gavrilov, Nemanja M., Pašti, Igor A., Šaponjić, Aleksandra, Vulić, Predrag J., Karić, Slavko D., Babić, Biljana M., Marčeta Kaninski, Milica, "On the tungsten carbide synthesis for PEM fuel cell application - Problems, challenges and advantages" in International Journal of Hydrogen Energy, 39, no. 21 (2014):11175-11185,
https://doi.org/10.1016/j.ijhydene.2014.05.078 . .
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