Jovanović, Zoran M.

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Authority KeyName Variants
orcid::0000-0003-1727-4852
  • Jovanović, Zoran M. (35)
Projects
Physics and Chemistry with Ion Beams Lithium-ion batteries and fuel cells - research and development
Electroconducting and redox-active polymers and oligomers: synthesis, structure, properties and applications Development and Application of Methods and Materials for Monitoring New Organic Contaminants, Toxic Compounds and Heavy Metals
ICTP Programme for Training and Research in Italian Laboratories, Trieste, Italy, Ministry of Science and Technological Development of the Republic Serbia [151005B] Experimental and theoretical investigation in Radiation physics and radioecology
Joint research of measurements and effects of ionizing and UV radiation in medicine and environmental protection ICTP Programme for Training and Research in Italian Laboratories, Trieste, Italy
ICTP, Trieste, Italy Oxide-based environmentally-friendly porous materials for genotoxic substances removal
Molecular mechanisms of redox signalling in homeostasis: adaptation and pathology Antioxidative defense, differentiation and regeneration potential of tissue specific mesenchymal stem cells during ageing
Functional, Functionalized and Advanced Nanomaterials Synthesis, processing and characterization of nanostructured materials for application in the field of energy, mechanical engineering, environmental protection and biomedicine
Istraživanja lokalnih struktura i klastera u čvrstom stanju Kvantni modeli otvorenih sistema
Strukturne i magnetne osobine nanočestičnih i polikristalnih oksida retkih zemalja i 3d metala. Ministry of Science and Technological Development of Serbia [151005B]
Ministry of Science and Technological Development of the Republic of Serbia [142047] Ministry of Science and Technological Development of the Republic Serbia [151005B, 142002]
Russian Foundation for Basic Research [19-57-45011 Ind a] Serbian Ministry of Science and Technological [142016, 141001]
Serbian Ministry of Science and Technology Serbian Ministry of Science and Technology [141009, 142016, 142027]
Serbia-Slovenia bilateral project [451-03-38/2016-09/50] Serbia-Slovenia bilateral project [50]
Slovenian Research Agency [J2-6759] Slovenian Research Agency [J2-6759], Slovene Human Resources and Scholarship Fund [11013-37/2012]
Slovenian Research Agency [Project P2-0091] Slovenian Research Agency - Slovenia [P2-0091]

Author's Bibliography

Liquid crystal aligning using different approaches

Kamanina, Natalie Vladimirovna; Jovanović, Zoran M.; Belyaev, Victor V.

(2020)

TY  - CONF
AU  - Kamanina, Natalie Vladimirovna
AU  - Jovanović, Zoran M.
AU  - Belyaev, Victor V.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9101
AB  - In the current paper the classical and new relief at the interface: solid substrate-liquid crystal mesophase is presented in order to orient the liquid crystal molecules with good advantage. Rubbing technique, some geometric construction at the interface, UV and VIS treatment of the polymers, and laser oriented method are shown. The last one is connected with the materials surface relief modification using the laser-matter interaction process by the application of the IR CO2-laser at the wavelength of 10.6 micrometers. As the efficient nano-objects applied for the relief improvement the carbon nanotubes with the small refractive index close to 1.1 and the large Young's modulus are used. As an additional, the varied electric field of 100-600 V/cm is applied in order to deposit the carbon nanotubes at the materials surfaces in the vertical position and to form the covalent bonding between the carbon atoms and the model matrix materials surface atoms. The novel results are shown in comparison with that obtained before for the classical orienting liquid crystal molecules methods. It extends dramatically the area of the liquid crystal cells use.
C3  - Journal of Physics: Conference Series
T1  - Liquid crystal aligning using different approaches
VL  - 1560
IS  - 1
SP  - 012040
DO  - 10.1088/1742-6596/1560/1/012040
ER  - 
@conference{
author = "Kamanina, Natalie Vladimirovna and Jovanović, Zoran M. and Belyaev, Victor V.",
year = "2020",
url = "https://vinar.vin.bg.ac.rs/handle/123456789/9101",
abstract = "In the current paper the classical and new relief at the interface: solid substrate-liquid crystal mesophase is presented in order to orient the liquid crystal molecules with good advantage. Rubbing technique, some geometric construction at the interface, UV and VIS treatment of the polymers, and laser oriented method are shown. The last one is connected with the materials surface relief modification using the laser-matter interaction process by the application of the IR CO2-laser at the wavelength of 10.6 micrometers. As the efficient nano-objects applied for the relief improvement the carbon nanotubes with the small refractive index close to 1.1 and the large Young's modulus are used. As an additional, the varied electric field of 100-600 V/cm is applied in order to deposit the carbon nanotubes at the materials surfaces in the vertical position and to form the covalent bonding between the carbon atoms and the model matrix materials surface atoms. The novel results are shown in comparison with that obtained before for the classical orienting liquid crystal molecules methods. It extends dramatically the area of the liquid crystal cells use.",
journal = "Journal of Physics: Conference Series",
title = "Liquid crystal aligning using different approaches",
volume = "1560",
number = "1",
pages = "012040",
doi = "10.1088/1742-6596/1560/1/012040"
}
Kamanina, N. V., Jovanović, Z. M.,& Belyaev, V. V. (2020). Liquid crystal aligning using different approaches.
Journal of Physics: Conference Series, 1560(1), 012040.
https://doi.org/10.1088/1742-6596/1560/1/012040
Kamanina NV, Jovanović ZM, Belyaev VV. Liquid crystal aligning using different approaches. Journal of Physics: Conference Series. 2020;1560(1):012040
Kamanina Natalie Vladimirovna, Jovanović Zoran M., Belyaev Victor V., "Liquid crystal aligning using different approaches" Journal of Physics: Conference Series, 1560, no. 1 (2020):012040,
https://doi.org/10.1088/1742-6596/1560/1/012040 .

Self-limiting interactions in 2D–0D systems: A case study of graphene oxide and 12-tungstophosphoric acid nanocomposite

Jovanović, Zoran M.; Mravik, Željko; Bajuk-Bogdanović, Danica V.; Jovanović, Sonja; Marković, Smilja; Vujković, Milica; Kovač, Janez; Vengust, Damjan; Uskoković-Marković, Snežana; Holclajtner-Antunović, Ivanka D.

(2020)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Mravik, Željko
AU  - Bajuk-Bogdanović, Danica V.
AU  - Jovanović, Sonja
AU  - Marković, Smilja
AU  - Vujković, Milica
AU  - Kovač, Janez
AU  - Vengust, Damjan
AU  - Uskoković-Marković, Snežana
AU  - Holclajtner-Antunović, Ivanka D.
PY  - 2020
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8520
AB  - In the present study we investigated the interaction between 12-tungstophosphoric acid (WPA) and graphene oxide (GO) in their nanocomposite by utilizing the loading of WPA as an intrinsic parameter for interaction tuning. The Fourier-transform infrared spectroscopy, temperature-programmed desorption, X-ray photoelectron spectroscopy, zeta-potential measurements, thermogravimetric analysis, X-ray diffraction, Raman spectroscopy and transmission electron microscopy methods revealed that ∼5–13 wt% of WPA represents critical loading that separates two distinct contributions to GO-WPA interaction. This was explained by the self-limiting nature of GO-WPA interaction, initially controlled by high dispersion of WPA on GO (up to 13 wt%), that is eventually overpowered by WPA-WPA interaction as loading increases. As a result, the WPA agglomerates are being formed because of which the hybrid character of the nanocomposite diminishes, i.e., the properties of independent components start to be manifested to greater extent. The obtained results provide an important framework for considering possible outcomes in other 2D-0D systems, whose interaction is relevant both from fundamental and applicative point of view. Thus, the GO/WPA nanocomposite illustrates how the interactions between the components can be used for tuning the properties of nanocomposite as a whole. © 2019 Elsevier Ltd
T2  - Carbon
T1  - Self-limiting interactions in 2D–0D systems: A case study of graphene oxide and 12-tungstophosphoric acid nanocomposite
VL  - 156
SP  - 166
EP  - 178
DO  - 10.1016/j.carbon.2019.09.072
ER  - 
@article{
author = "Jovanović, Zoran M. and Mravik, Željko and Bajuk-Bogdanović, Danica V. and Jovanović, Sonja and Marković, Smilja and Vujković, Milica and Kovač, Janez and Vengust, Damjan and Uskoković-Marković, Snežana and Holclajtner-Antunović, Ivanka D.",
year = "2020",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8520",
abstract = "In the present study we investigated the interaction between 12-tungstophosphoric acid (WPA) and graphene oxide (GO) in their nanocomposite by utilizing the loading of WPA as an intrinsic parameter for interaction tuning. The Fourier-transform infrared spectroscopy, temperature-programmed desorption, X-ray photoelectron spectroscopy, zeta-potential measurements, thermogravimetric analysis, X-ray diffraction, Raman spectroscopy and transmission electron microscopy methods revealed that ∼5–13 wt% of WPA represents critical loading that separates two distinct contributions to GO-WPA interaction. This was explained by the self-limiting nature of GO-WPA interaction, initially controlled by high dispersion of WPA on GO (up to 13 wt%), that is eventually overpowered by WPA-WPA interaction as loading increases. As a result, the WPA agglomerates are being formed because of which the hybrid character of the nanocomposite diminishes, i.e., the properties of independent components start to be manifested to greater extent. The obtained results provide an important framework for considering possible outcomes in other 2D-0D systems, whose interaction is relevant both from fundamental and applicative point of view. Thus, the GO/WPA nanocomposite illustrates how the interactions between the components can be used for tuning the properties of nanocomposite as a whole. © 2019 Elsevier Ltd",
journal = "Carbon",
title = "Self-limiting interactions in 2D–0D systems: A case study of graphene oxide and 12-tungstophosphoric acid nanocomposite",
volume = "156",
pages = "166-178",
doi = "10.1016/j.carbon.2019.09.072"
}
Jovanović, Z. M., Mravik, Ž., Bajuk-Bogdanović, D. V., Jovanović, S., Marković, S., Vujković, M., Kovač, J., Vengust, D., Uskoković-Marković, S.,& Holclajtner-Antunović, I. D. (2020). Self-limiting interactions in 2D–0D systems: A case study of graphene oxide and 12-tungstophosphoric acid nanocomposite.
Carbon, 156, 166-178.
https://doi.org/10.1016/j.carbon.2019.09.072
Jovanović ZM, Mravik Ž, Bajuk-Bogdanović DV, Jovanović S, Marković S, Vujković M, Kovač J, Vengust D, Uskoković-Marković S, Holclajtner-Antunović ID. Self-limiting interactions in 2D–0D systems: A case study of graphene oxide and 12-tungstophosphoric acid nanocomposite. Carbon. 2020;156:166-178
Jovanović Zoran M., Mravik Željko, Bajuk-Bogdanović Danica V., Jovanović Sonja, Marković Smilja, Vujković Milica, Kovač Janez, Vengust Damjan, Uskoković-Marković Snežana, Holclajtner-Antunović Ivanka D., "Self-limiting interactions in 2D–0D systems: A case study of graphene oxide and 12-tungstophosphoric acid nanocomposite" Carbon, 156 (2020):166-178,
https://doi.org/10.1016/j.carbon.2019.09.072 .
3
3

In situ synthesis of potassium tungstophosphate supported on BEA zeolite and perspective application for pesticide removal

Vasiljević-Nedić, Bojana; Obradović, Milena; Bajuk-Bogdanović, Danica V.; Milojević-Rakić, Maja; Jovanović, Zoran M.; Gavrilov, Nemanja M.; Holclajtner-Antunović, Ivanka D.

(2019)

TY  - JOUR
AU  - Vasiljević-Nedić, Bojana
AU  - Obradović, Milena
AU  - Bajuk-Bogdanović, Danica V.
AU  - Milojević-Rakić, Maja
AU  - Jovanović, Zoran M.
AU  - Gavrilov, Nemanja M.
AU  - Holclajtner-Antunović, Ivanka D.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S1001074218314682
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8217
AB  - Potassium tungstophosphate is supported on BEA zeolite by in situ synthesis for glyphosate removal. Spectroscopic measurements identified hydrogen bonding as a primal interaction of potassium salt and BEA zeolite. Composites are evaluated for glyphosate herbicide removal and adsorption process is analyzed using two isotherm models. Obtained adsorption capacities for all prepared composites lay between 45.2 and 92.2 mg of glyphosate per gram of investigated composite. Suspension acidity revealed that glyphosate is adsorbed mainly in the zwitter-ion form at the composite surface while the amount of potassium salt in the composites is crucial for the adsorption application. Exceptional adsorption behavior is postulated to come from a high degree of homogeneity among surface active sites which is confirmed by different experimental methods. Temperature programmed desorption of glyphosate coupled with mass spectrometer detected one broad, high-temperature peak which represents overlapped desorption processes from active sights of similar strength. Introduction of potassium tungstophosphate affects active sites present in BEA zeolite for glyphosate desorption and significantly increases the amount of adsorbed pesticide in comparison to BEA zeolite. Supporting of potassium tungstophosphate on BEA zeolite via in situ synthesis procedure enables the formation of highly efficient adsorbents and revealed their perspective environmental application. © 2019
T2  - Journal of Environmental Sciences
T1  - In situ synthesis of potassium tungstophosphate supported on BEA zeolite and perspective application for pesticide removal
VL  - 81
SP  - 136
EP  - 147
DO  - 10.1016/j.jes.2019.01.018
ER  - 
@article{
author = "Vasiljević-Nedić, Bojana and Obradović, Milena and Bajuk-Bogdanović, Danica V. and Milojević-Rakić, Maja and Jovanović, Zoran M. and Gavrilov, Nemanja M. and Holclajtner-Antunović, Ivanka D.",
year = "2019",
url = "https://linkinghub.elsevier.com/retrieve/pii/S1001074218314682, http://vinar.vin.bg.ac.rs/handle/123456789/8217",
abstract = "Potassium tungstophosphate is supported on BEA zeolite by in situ synthesis for glyphosate removal. Spectroscopic measurements identified hydrogen bonding as a primal interaction of potassium salt and BEA zeolite. Composites are evaluated for glyphosate herbicide removal and adsorption process is analyzed using two isotherm models. Obtained adsorption capacities for all prepared composites lay between 45.2 and 92.2 mg of glyphosate per gram of investigated composite. Suspension acidity revealed that glyphosate is adsorbed mainly in the zwitter-ion form at the composite surface while the amount of potassium salt in the composites is crucial for the adsorption application. Exceptional adsorption behavior is postulated to come from a high degree of homogeneity among surface active sites which is confirmed by different experimental methods. Temperature programmed desorption of glyphosate coupled with mass spectrometer detected one broad, high-temperature peak which represents overlapped desorption processes from active sights of similar strength. Introduction of potassium tungstophosphate affects active sites present in BEA zeolite for glyphosate desorption and significantly increases the amount of adsorbed pesticide in comparison to BEA zeolite. Supporting of potassium tungstophosphate on BEA zeolite via in situ synthesis procedure enables the formation of highly efficient adsorbents and revealed their perspective environmental application. © 2019",
journal = "Journal of Environmental Sciences",
title = "In situ synthesis of potassium tungstophosphate supported on BEA zeolite and perspective application for pesticide removal",
volume = "81",
pages = "136-147",
doi = "10.1016/j.jes.2019.01.018"
}
Vasiljević-Nedić, B., Obradović, M., Bajuk-Bogdanović, D. V., Milojević-Rakić, M., Jovanović, Z. M., Gavrilov, N. M.,& Holclajtner-Antunović, I. D. (2019). In situ synthesis of potassium tungstophosphate supported on BEA zeolite and perspective application for pesticide removal.
Journal of Environmental Sciences, 81, 136-147.
https://doi.org/10.1016/j.jes.2019.01.018
Vasiljević-Nedić B, Obradović M, Bajuk-Bogdanović DV, Milojević-Rakić M, Jovanović ZM, Gavrilov NM, Holclajtner-Antunović ID. In situ synthesis of potassium tungstophosphate supported on BEA zeolite and perspective application for pesticide removal. Journal of Environmental Sciences. 2019;81:136-147
Vasiljević-Nedić Bojana, Obradović Milena, Bajuk-Bogdanović Danica V., Milojević-Rakić Maja, Jovanović Zoran M., Gavrilov Nemanja M., Holclajtner-Antunović Ivanka D., "In situ synthesis of potassium tungstophosphate supported on BEA zeolite and perspective application for pesticide removal" Journal of Environmental Sciences, 81 (2019):136-147,
https://doi.org/10.1016/j.jes.2019.01.018 .
9
8
9

Tailoring the electrochemical charge storage properties of carbonaceous support by redox properties of heteropoly acids: where does the synergy come from?

Bajuk-Bogdanović, Danica V.; Holclajtner-Antunović, Ivanka D.; Jovanović, Zoran M.; Mravik, Željko; Krstić, Jugoslav B.; Uskoković-Marković, Snežana; Vujković, Milica

(2019)

TY  - JOUR
AU  - Bajuk-Bogdanović, Danica V.
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Jovanović, Zoran M.
AU  - Mravik, Željko
AU  - Krstić, Jugoslav B.
AU  - Uskoković-Marković, Snežana
AU  - Vujković, Milica
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8500
AB  - The synergistic effects between two Keggin-type heteropoly acids (HPAs) and carbon surface were examined and elucidated. An improved high rate capability (and potential high capacitor electrode for supercapacitors) of the hybrid materials, obtained by anchoring of α-dodecamolybdophosphoric (MoPA), α-dodecatungstophosphoric (WPA), and their mixture to activated carbon (AC), was achieved through the different mechanism of interaction. In order to elaborate this, a detailed analysis of AC-HPA composites has been performed by scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) analysis, temperature-programmed desorption (TPD), Fourier-transform infrared spectroscopy (FTIR), micro Raman spectroscopy, and zeta potential measurements. The zeta potential measurements revealed positive charge of carbon surface thus indicating attractive interactions with negatively charged Keggin anion. The surface analysis has shown that WPA spontaneously reduces the carbon surface, while interaction with MoPA leads to its oxidation. As the consequence of the tailoring of the functional groups at carbon surface through HPAs’ action, the distortion of cyclic voltammograms (CVs) decreased in the following order: AC-MoPA, AC-MoPA-WPA, and AC-WPA. A prominent rectangular shape of AC-WPA, even at an extremely high scan rate of 400 mVs−1, was measured, which is rarely demonstrated for carbon-based composites. By applying the theory of electrode potentials, the HPA-AC synergistic effect was explained and discussed in terms of charge storage improvement of HPA-modified carbon. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
T2  - Journal of Solid State Electrochemistry
T1  - Tailoring the electrochemical charge storage properties of carbonaceous support by redox properties of heteropoly acids: where does the synergy come from?
VL  - 23
IS  - 9
SP  - 2747
EP  - 2758
DO  - 10.1007/s10008-019-04369-4
ER  - 
@article{
author = "Bajuk-Bogdanović, Danica V. and Holclajtner-Antunović, Ivanka D. and Jovanović, Zoran M. and Mravik, Željko and Krstić, Jugoslav B. and Uskoković-Marković, Snežana and Vujković, Milica",
year = "2019",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8500",
abstract = "The synergistic effects between two Keggin-type heteropoly acids (HPAs) and carbon surface were examined and elucidated. An improved high rate capability (and potential high capacitor electrode for supercapacitors) of the hybrid materials, obtained by anchoring of α-dodecamolybdophosphoric (MoPA), α-dodecatungstophosphoric (WPA), and their mixture to activated carbon (AC), was achieved through the different mechanism of interaction. In order to elaborate this, a detailed analysis of AC-HPA composites has been performed by scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) analysis, temperature-programmed desorption (TPD), Fourier-transform infrared spectroscopy (FTIR), micro Raman spectroscopy, and zeta potential measurements. The zeta potential measurements revealed positive charge of carbon surface thus indicating attractive interactions with negatively charged Keggin anion. The surface analysis has shown that WPA spontaneously reduces the carbon surface, while interaction with MoPA leads to its oxidation. As the consequence of the tailoring of the functional groups at carbon surface through HPAs’ action, the distortion of cyclic voltammograms (CVs) decreased in the following order: AC-MoPA, AC-MoPA-WPA, and AC-WPA. A prominent rectangular shape of AC-WPA, even at an extremely high scan rate of 400 mVs−1, was measured, which is rarely demonstrated for carbon-based composites. By applying the theory of electrode potentials, the HPA-AC synergistic effect was explained and discussed in terms of charge storage improvement of HPA-modified carbon. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.",
journal = "Journal of Solid State Electrochemistry",
title = "Tailoring the electrochemical charge storage properties of carbonaceous support by redox properties of heteropoly acids: where does the synergy come from?",
volume = "23",
number = "9",
pages = "2747-2758",
doi = "10.1007/s10008-019-04369-4"
}
Bajuk-Bogdanović, D. V., Holclajtner-Antunović, I. D., Jovanović, Z. M., Mravik, Ž., Krstić, J. B., Uskoković-Marković, S.,& Vujković, M. (2019). Tailoring the electrochemical charge storage properties of carbonaceous support by redox properties of heteropoly acids: where does the synergy come from?.
Journal of Solid State Electrochemistry, 23(9), 2747-2758.
https://doi.org/10.1007/s10008-019-04369-4
Bajuk-Bogdanović DV, Holclajtner-Antunović ID, Jovanović ZM, Mravik Ž, Krstić JB, Uskoković-Marković S, Vujković M. Tailoring the electrochemical charge storage properties of carbonaceous support by redox properties of heteropoly acids: where does the synergy come from?. Journal of Solid State Electrochemistry. 2019;23(9):2747-2758
Bajuk-Bogdanović Danica V., Holclajtner-Antunović Ivanka D., Jovanović Zoran M., Mravik Željko, Krstić Jugoslav B., Uskoković-Marković Snežana, Vujković Milica, "Tailoring the electrochemical charge storage properties of carbonaceous support by redox properties of heteropoly acids: where does the synergy come from?" Journal of Solid State Electrochemistry, 23, no. 9 (2019):2747-2758,
https://doi.org/10.1007/s10008-019-04369-4 .
1
1
1

Hydrogen Absorption in Pd–Ag Systems: A TPD and Electrical Resistivity Study

Pozio, Alfonso; Jovanović, Zoran M.; Tosti, Silvano

(2019)

TY  - JOUR
AU  - Pozio, Alfonso
AU  - Jovanović, Zoran M.
AU  - Tosti, Silvano
PY  - 2019
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8593
AB  - Hydrogen retention in Pd–Ag (silver 21 wt. %) thin foil has been tested by means of temperature-programmed desorption (TPD) in the temperature range 25–200 °C and compared to the resistivity measurements for the purpose of explaining the characteristic S-shaped resistivity curve and its minimum observed in the same temperature range. The TPD results indicated that the highest uptake of hydrogen was between 65 °C and 105 °C, with a maximum at ~85 °C. Furthermore, in all examined cases, the hydrogen desorption peak was between 140 °C and 180 °C. The resistivity measurements in argon, hydrogen, and vacuum allowed us to examine the influence of hydrogen on the resistivity of a Pd–Ag alloy. The results showed evidence of two kinds of hydrides: (1) a weak absorption at low temperature (T < 70 °C) with the hydrogen present mainly in tetrahedral sites, and (2) a strong absorption up to 150 °C with the hydrogen present mainly in octahedral sites. The behaviour of the electrical resistivity and the minimum between 90 °C and 110 °C can be explained by the two kinds of hydrogen uploaded into the metal lattice.
T2  - Materials
T1  - Hydrogen Absorption in Pd–Ag Systems: A TPD and Electrical Resistivity Study
VL  - 12
IS  - 19
SP  - 3160
DO  - 10.3390/ma12193160
ER  - 
@article{
author = "Pozio, Alfonso and Jovanović, Zoran M. and Tosti, Silvano",
year = "2019",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8593",
abstract = "Hydrogen retention in Pd–Ag (silver 21 wt. %) thin foil has been tested by means of temperature-programmed desorption (TPD) in the temperature range 25–200 °C and compared to the resistivity measurements for the purpose of explaining the characteristic S-shaped resistivity curve and its minimum observed in the same temperature range. The TPD results indicated that the highest uptake of hydrogen was between 65 °C and 105 °C, with a maximum at ~85 °C. Furthermore, in all examined cases, the hydrogen desorption peak was between 140 °C and 180 °C. The resistivity measurements in argon, hydrogen, and vacuum allowed us to examine the influence of hydrogen on the resistivity of a Pd–Ag alloy. The results showed evidence of two kinds of hydrides: (1) a weak absorption at low temperature (T < 70 °C) with the hydrogen present mainly in tetrahedral sites, and (2) a strong absorption up to 150 °C with the hydrogen present mainly in octahedral sites. The behaviour of the electrical resistivity and the minimum between 90 °C and 110 °C can be explained by the two kinds of hydrogen uploaded into the metal lattice.",
journal = "Materials",
title = "Hydrogen Absorption in Pd–Ag Systems: A TPD and Electrical Resistivity Study",
volume = "12",
number = "19",
pages = "3160",
doi = "10.3390/ma12193160"
}
Pozio, A., Jovanović, Z. M.,& Tosti, S. (2019). Hydrogen Absorption in Pd–Ag Systems: A TPD and Electrical Resistivity Study.
Materials, 12(19), 3160.
https://doi.org/10.3390/ma12193160
Pozio A, Jovanović ZM, Tosti S. Hydrogen Absorption in Pd–Ag Systems: A TPD and Electrical Resistivity Study. Materials. 2019;12(19):3160
Pozio Alfonso, Jovanović Zoran M., Tosti Silvano, "Hydrogen Absorption in Pd–Ag Systems: A TPD and Electrical Resistivity Study" Materials, 12, no. 19 (2019):3160,
https://doi.org/10.3390/ma12193160 .
1
1
1

Influence of absorbed radiation dose following computed tomography on the antioxidative status in rabbit testicles

Mitrović, Marko B.; Tatalović, Nikola R.; Nikolić-Kokić, Aleksandra L.; Ciraj-Bjelac, Olivera; Krstić, Nikola E.; Oreščanin-Dušić, Zorana S.; Krstić, Dragana Ž.; Jovanović, Zoran M.; Blagojević, Duško P.; Lazarević-Macanović, Mirjana V.

(2018)

TY  - JOUR
AU  - Mitrović, Marko B.
AU  - Tatalović, Nikola R.
AU  - Nikolić-Kokić, Aleksandra L.
AU  - Ciraj-Bjelac, Olivera
AU  - Krstić, Nikola E.
AU  - Oreščanin-Dušić, Zorana S.
AU  - Krstić, Dragana Ž.
AU  - Jovanović, Zoran M.
AU  - Blagojević, Duško P.
AU  - Lazarević-Macanović, Mirjana V.
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0354-46641800029M
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8001
AB  - In recent years, computed tomography (CT) has become very common in veterinary medicine. It is well known that testicles are organs with high radiosensitivity and their function can be impaired even after exposure to low radiation doses. In this work, we calculated the absorbed radiation doses after CT was performed with different voltage/current levels and correlated it with the activity of antioxidant enzymes in rabbit testicles. Two hours after CT, the activities of catalase (CAT) and glutathione peroxidase (GSH-Px) were increased in the testicles of animals that received an absorbed dose of 29.2 mGy. The same changes, along with elevated glutathione reductase (GR) activity, were observed after 7 days in animals that received the highest absorbed dose (46.3 mGy). It would appear that absorbed doses above 27.8 mGy provoked the antioxidant reaction but the time scale of the reaction was dose-dependent. Examination of the obtained results revealed that the main denominator of CT influence was a higher current. Our results suggest that CT influences the antioxidant status in rabbit testicles. The changes in antioxidant enzyme activities were dose- and time-dependent and influenced by the applied current. © 2018 by the Serbian Biological Society.
T2  - Archives of Biological Sciences
T1  - Influence of absorbed radiation dose following computed tomography on the antioxidative status in rabbit testicles
VL  - 70
IS  - 4
SP  - 675
EP  - 680
DO  - 10.2298/ABS180413029M
ER  - 
@article{
author = "Mitrović, Marko B. and Tatalović, Nikola R. and Nikolić-Kokić, Aleksandra L. and Ciraj-Bjelac, Olivera and Krstić, Nikola E. and Oreščanin-Dušić, Zorana S. and Krstić, Dragana Ž. and Jovanović, Zoran M. and Blagojević, Duško P. and Lazarević-Macanović, Mirjana V.",
year = "2018",
url = "http://www.doiserbia.nb.rs/Article.aspx?ID=0354-46641800029M, http://vinar.vin.bg.ac.rs/handle/123456789/8001",
abstract = "In recent years, computed tomography (CT) has become very common in veterinary medicine. It is well known that testicles are organs with high radiosensitivity and their function can be impaired even after exposure to low radiation doses. In this work, we calculated the absorbed radiation doses after CT was performed with different voltage/current levels and correlated it with the activity of antioxidant enzymes in rabbit testicles. Two hours after CT, the activities of catalase (CAT) and glutathione peroxidase (GSH-Px) were increased in the testicles of animals that received an absorbed dose of 29.2 mGy. The same changes, along with elevated glutathione reductase (GR) activity, were observed after 7 days in animals that received the highest absorbed dose (46.3 mGy). It would appear that absorbed doses above 27.8 mGy provoked the antioxidant reaction but the time scale of the reaction was dose-dependent. Examination of the obtained results revealed that the main denominator of CT influence was a higher current. Our results suggest that CT influences the antioxidant status in rabbit testicles. The changes in antioxidant enzyme activities were dose- and time-dependent and influenced by the applied current. © 2018 by the Serbian Biological Society.",
journal = "Archives of Biological Sciences",
title = "Influence of absorbed radiation dose following computed tomography on the antioxidative status in rabbit testicles",
volume = "70",
number = "4",
pages = "675-680",
doi = "10.2298/ABS180413029M"
}
Mitrović, M. B., Tatalović, N. R., Nikolić-Kokić, A. L., Ciraj-Bjelac, O., Krstić, N. E., Oreščanin-Dušić, Z. S., Krstić, D. Ž., Jovanović, Z. M., Blagojević, D. P.,& Lazarević-Macanović, M. V. (2018). Influence of absorbed radiation dose following computed tomography on the antioxidative status in rabbit testicles.
Archives of Biological Sciences, 70(4), 675-680.
https://doi.org/10.2298/ABS180413029M
Mitrović MB, Tatalović NR, Nikolić-Kokić AL, Ciraj-Bjelac O, Krstić NE, Oreščanin-Dušić ZS, Krstić DŽ, Jovanović ZM, Blagojević DP, Lazarević-Macanović MV. Influence of absorbed radiation dose following computed tomography on the antioxidative status in rabbit testicles. Archives of Biological Sciences. 2018;70(4):675-680
Mitrović Marko B., Tatalović Nikola R., Nikolić-Kokić Aleksandra L., Ciraj-Bjelac Olivera, Krstić Nikola E., Oreščanin-Dušić Zorana S., Krstić Dragana Ž., Jovanović Zoran M., Blagojević Duško P., Lazarević-Macanović Mirjana V., "Influence of absorbed radiation dose following computed tomography on the antioxidative status in rabbit testicles" Archives of Biological Sciences, 70, no. 4 (2018):675-680,
https://doi.org/10.2298/ABS180413029M .
1
1

The role of surface chemistry in the charge storage properties of graphene oxide

Jovanović, Zoran M.; Bajuk-Bogdanović, Danica V.; Jovanović, Sonja; Mravik, Željko; Kovač, Janez; Holclajtner-Antunović, Ivanka D.; Vujković, Milica

(2017)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Bajuk-Bogdanović, Danica V.
AU  - Jovanović, Sonja
AU  - Mravik, Željko
AU  - Kovač, Janez
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Vujković, Milica
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1879
AB  - In the present study we have evaluated the contribution of particular oxygen functional groups in the charge storage properties of graphene oxide (GO). This was achieved by a gradual thermal reduction of GO in an inert atmosphere (up to 800 degrees C) and thorough examination of functional groups which remained after each de-functionalization step. After identification of functional groups, the character of additional cyclovoltammetric peak, less pronounced than the main redox quinone/hydroquinone pair, and overall charge storage properties of GO were discussed from the perspective of different thermal stability of its surface groups. The results indicated three-stage deoxidation process of GO, each comprising of specific surface chemistry, structural changes and electrochemical behavior. The low capacitance, similar to 50 F g(-1), at T LT = 300 degrees C was attributed to the presence of epoxy and carboxyl groups. The highest capacitance (120-130 F g(-1)) was observed in the case of GO reduced at 400 and 500 degrees C, which we attributed to positive effects of phenol and carbonyl/quinone groups, while at high temperatures (T GT = 600 degrees C, similar to 30 F g(-1)) the extensive desorption of functional groups and structural changes were emphasized as the main reasons for additional decrease of capacitance. Our results highlight the cases where the duality of interpretation of surface functional groups is likely to happen and indicate that not all functional groups play a positive role in charge storage behavior of graphene oxide. (C) 2017 Elsevier Ltd. All rights reserved.
T2  - Electrochimica Acta
T1  - The role of surface chemistry in the charge storage properties of graphene oxide
VL  - 258
SP  - 1228
EP  - 1243
DO  - 10.1016/j.electacta.2017.11.178
ER  - 
@article{
author = "Jovanović, Zoran M. and Bajuk-Bogdanović, Danica V. and Jovanović, Sonja and Mravik, Željko and Kovač, Janez and Holclajtner-Antunović, Ivanka D. and Vujković, Milica",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1879",
abstract = "In the present study we have evaluated the contribution of particular oxygen functional groups in the charge storage properties of graphene oxide (GO). This was achieved by a gradual thermal reduction of GO in an inert atmosphere (up to 800 degrees C) and thorough examination of functional groups which remained after each de-functionalization step. After identification of functional groups, the character of additional cyclovoltammetric peak, less pronounced than the main redox quinone/hydroquinone pair, and overall charge storage properties of GO were discussed from the perspective of different thermal stability of its surface groups. The results indicated three-stage deoxidation process of GO, each comprising of specific surface chemistry, structural changes and electrochemical behavior. The low capacitance, similar to 50 F g(-1), at T LT = 300 degrees C was attributed to the presence of epoxy and carboxyl groups. The highest capacitance (120-130 F g(-1)) was observed in the case of GO reduced at 400 and 500 degrees C, which we attributed to positive effects of phenol and carbonyl/quinone groups, while at high temperatures (T GT = 600 degrees C, similar to 30 F g(-1)) the extensive desorption of functional groups and structural changes were emphasized as the main reasons for additional decrease of capacitance. Our results highlight the cases where the duality of interpretation of surface functional groups is likely to happen and indicate that not all functional groups play a positive role in charge storage behavior of graphene oxide. (C) 2017 Elsevier Ltd. All rights reserved.",
journal = "Electrochimica Acta",
title = "The role of surface chemistry in the charge storage properties of graphene oxide",
volume = "258",
pages = "1228-1243",
doi = "10.1016/j.electacta.2017.11.178"
}
Jovanović, Z. M., Bajuk-Bogdanović, D. V., Jovanović, S., Mravik, Ž., Kovač, J., Holclajtner-Antunović, I. D.,& Vujković, M. (2017). The role of surface chemistry in the charge storage properties of graphene oxide.
Electrochimica Acta, 258, 1228-1243.
https://doi.org/10.1016/j.electacta.2017.11.178
Jovanović ZM, Bajuk-Bogdanović DV, Jovanović S, Mravik Ž, Kovač J, Holclajtner-Antunović ID, Vujković M. The role of surface chemistry in the charge storage properties of graphene oxide. Electrochimica Acta. 2017;258:1228-1243
Jovanović Zoran M., Bajuk-Bogdanović Danica V., Jovanović Sonja, Mravik Željko, Kovač Janez, Holclajtner-Antunović Ivanka D., Vujković Milica, "The role of surface chemistry in the charge storage properties of graphene oxide" Electrochimica Acta, 258 (2017):1228-1243,
https://doi.org/10.1016/j.electacta.2017.11.178 .
15
15
15

Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite

Jovanović, Zoran M.; Holclajtner-Antunović, Ivanka D.; Bajuk-Bogdanović, Danica V.; Jovanović, Sonja; Mravik, Željko; Vujković, Milica

(2017)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Bajuk-Bogdanović, Danica V.
AU  - Jovanović, Sonja
AU  - Mravik, Željko
AU  - Vujković, Milica
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1737
AB  - The influence of thermal treatment in an inert atmosphere on the charge storage properties of graphene oxide (GO)/12-tungstophosphoric acid (WPA) nanocomposite was examined. The transmission electron microscopy analysis revealed high dispersion of WPA on GO matrix, while the surface analysis showed thermal activation of structural changes of WPA and desorption of oxygen functional groups from GO and GO/WPA nanocomposite. Initial GO/WPA nanocomposite had approximately two times higher capacitance compared to initial GO. The thermal treatment of initial GO and GO/WPA to 500 degrees C induced twofold increase of capacitance of GO and 40% increase of GO/WPA, accompanied with significant increase of operating voltage compared to GO (for 300 mV). Above 500 degrees C, a decrease of capacitance of both GO and GO/WPA was observed. The results suggest that understanding of structural changes of components and their interaction is crucial for improvement of electrochemical properties of considered composite.
T2  - Electrochemistry Communications
T1  - Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite
VL  - 83
SP  - 36
EP  - 40
DO  - 10.1016/j.elecom.2017.08.017
ER  - 
@article{
author = "Jovanović, Zoran M. and Holclajtner-Antunović, Ivanka D. and Bajuk-Bogdanović, Danica V. and Jovanović, Sonja and Mravik, Željko and Vujković, Milica",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1737",
abstract = "The influence of thermal treatment in an inert atmosphere on the charge storage properties of graphene oxide (GO)/12-tungstophosphoric acid (WPA) nanocomposite was examined. The transmission electron microscopy analysis revealed high dispersion of WPA on GO matrix, while the surface analysis showed thermal activation of structural changes of WPA and desorption of oxygen functional groups from GO and GO/WPA nanocomposite. Initial GO/WPA nanocomposite had approximately two times higher capacitance compared to initial GO. The thermal treatment of initial GO and GO/WPA to 500 degrees C induced twofold increase of capacitance of GO and 40% increase of GO/WPA, accompanied with significant increase of operating voltage compared to GO (for 300 mV). Above 500 degrees C, a decrease of capacitance of both GO and GO/WPA was observed. The results suggest that understanding of structural changes of components and their interaction is crucial for improvement of electrochemical properties of considered composite.",
journal = "Electrochemistry Communications",
title = "Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite",
volume = "83",
pages = "36-40",
doi = "10.1016/j.elecom.2017.08.017"
}
Jovanović, Z. M., Holclajtner-Antunović, I. D., Bajuk-Bogdanović, D. V., Jovanović, S., Mravik, Ž.,& Vujković, M. (2017). Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite.
Electrochemistry Communications, 83, 36-40.
https://doi.org/10.1016/j.elecom.2017.08.017
Jovanović ZM, Holclajtner-Antunović ID, Bajuk-Bogdanović DV, Jovanović S, Mravik Ž, Vujković M. Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite. Electrochemistry Communications. 2017;83:36-40
Jovanović Zoran M., Holclajtner-Antunović Ivanka D., Bajuk-Bogdanović Danica V., Jovanović Sonja, Mravik Željko, Vujković Milica, "Effect of thermal treatment on the charge storage properties of graphene oxide/12-tungstophosphoric acid nanocomposite" Electrochemistry Communications, 83 (2017):36-40,
https://doi.org/10.1016/j.elecom.2017.08.017 .
9
8
8

Surface chemistry, thermal stability and structural properties of graphene oxide/12-tungstophosphoric acid nanocomposite

Marković, Smilja; Mravik, Željko; Bajuk-Bogdanović, Danica V.; Marković, Smilja; Holclajtner-Antunović, Ivanka D.; Jovanović, Zoran M.

(Belgrade : Institute of Technical Sciences of SASA, 2017)

TY  - CONF
AU  - Mravik, Željko
AU  - Bajuk-Bogdanović, Danica V.
AU  - Marković, Smilja
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Jovanović, Zoran M.
PY  - 2017
UR  - http://itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/1219
UR  - http://itn.sanu.ac.rs/opus4/files/1219/Mravik_16YRC2017.pdf
UR  - http://dais.sanu.ac.rs/123456789/15450
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7556
AB  - In recent years the nanocomposites of graphene oxide (GO) and different inorganic and organic compounds have shown great potential for charge storage applications. In present work we have investigated the influence of 12-tungstophosphoric acid (WPA) on surface chemistry of graphene oxide and thermal stability of nanocomposite. For this purpose nanocomposites with different mass ratios of GO and WPA were prepared. The thermal stability of nanocomposites was investigated by thermogravimetric and differential thermal analysis (TGA-DTA) while changes in surface chemistry of GO and structural properties of WPA were investigated by Fourier transform infrared spectroscopy (FTIR) and temperature programmed desorption (TPD) method. The TGA-DTA measurements of composites have shown that the major mass loss, due to carbon combustion, is shifted to higher temperatures (~500 °C vs. 380 °C of pure GO). Furthermore, when the amount of WPA is higher than 25 mass percent the nanocomposites start to act like individual components, which was also confirmed by FTIR analysis. The amount of surface oxygen groups, monitored by both TPD and FTIR methods, showed ˝V˝ shaped dependence from the quantity of WPA with minimum at about 12 mass percent of WPA. At the same time, the FTIR spectra revealed the structural changes of WPA, displayed as shifting and splitting of characteristic bands of Keggin anion structure.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia
T1  - Surface chemistry, thermal stability and structural properties of graphene oxide/12-tungstophosphoric acid nanocomposite
SP  - 48
EP  - 48
ER  - 
@conference{
editor = "Marković, Smilja",
author = "Mravik, Željko and Bajuk-Bogdanović, Danica V. and Marković, Smilja and Holclajtner-Antunović, Ivanka D. and Jovanović, Zoran M.",
year = "2017",
url = "http://itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/1219, http://itn.sanu.ac.rs/opus4/files/1219/Mravik_16YRC2017.pdf, http://dais.sanu.ac.rs/123456789/15450, http://vinar.vin.bg.ac.rs/handle/123456789/7556",
abstract = "In recent years the nanocomposites of graphene oxide (GO) and different inorganic and organic compounds have shown great potential for charge storage applications. In present work we have investigated the influence of 12-tungstophosphoric acid (WPA) on surface chemistry of graphene oxide and thermal stability of nanocomposite. For this purpose nanocomposites with different mass ratios of GO and WPA were prepared. The thermal stability of nanocomposites was investigated by thermogravimetric and differential thermal analysis (TGA-DTA) while changes in surface chemistry of GO and structural properties of WPA were investigated by Fourier transform infrared spectroscopy (FTIR) and temperature programmed desorption (TPD) method. The TGA-DTA measurements of composites have shown that the major mass loss, due to carbon combustion, is shifted to higher temperatures (~500 °C vs. 380 °C of pure GO). Furthermore, when the amount of WPA is higher than 25 mass percent the nanocomposites start to act like individual components, which was also confirmed by FTIR analysis. The amount of surface oxygen groups, monitored by both TPD and FTIR methods, showed ˝V˝ shaped dependence from the quantity of WPA with minimum at about 12 mass percent of WPA. At the same time, the FTIR spectra revealed the structural changes of WPA, displayed as shifting and splitting of characteristic bands of Keggin anion structure.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia",
title = "Surface chemistry, thermal stability and structural properties of graphene oxide/12-tungstophosphoric acid nanocomposite",
pages = "48-48"
}
Marković, S., Mravik, Ž., Bajuk-Bogdanović, D. V., Marković, S., Holclajtner-Antunović, I. D.,& Jovanović, Z. M. (2017). Surface chemistry, thermal stability and structural properties of graphene oxide/12-tungstophosphoric acid nanocomposite.
Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 48-48.
Marković S, Mravik Ž, Bajuk-Bogdanović DV, Marković S, Holclajtner-Antunović ID, Jovanović ZM. Surface chemistry, thermal stability and structural properties of graphene oxide/12-tungstophosphoric acid nanocomposite. Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia. 2017;:48-48
Marković Smilja, Mravik Željko, Bajuk-Bogdanović Danica V., Marković Smilja, Holclajtner-Antunović Ivanka D., Jovanović Zoran M., "Surface chemistry, thermal stability and structural properties of graphene oxide/12-tungstophosphoric acid nanocomposite" Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia (2017):48-48

Прорачун специфичне апсорбоване фракције у појединим органима човечјег тела приликом примене радиофармацеутика Xe-133

Jovanović, Zoran M.; Krstić, Dragana Ž.; Nikezić, Dragoslav

(Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе, 2017)

TY  - CONF
AU  - Jovanović, Zoran M.
AU  - Krstić, Dragana Ž.
AU  - Nikezić, Dragoslav
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/8295
UR  - https://plus.sr.cobiss.net/opac7/bib/245691404
UR  - http://dzz.org.rs/wp-content/uploads/2013/06/Zbornik_XXIX_Simpozijum_DZZ_SCG_Srebrno_jezero_2.pdf
AB  - Монте Карло симулације су изведене за процену дозу приликом третмана са
радиофармацеутиком 133Xe. Овај радиофармацеутик се користи у третманима у
нуклеарној медицини, као индикација за кардиоваскуларне и плућне болести. Циљ
овог рада је био да се процени специфична апсорбована фракција (САФ) када је
овај радиофармацеутик инкорпориран у плућима. За ту сврху је развијен воксел
фантом (торакса) и упоређен је са ORNL фантомом. Сви прорачуни и симулације
врше помоћу MCNP5/Х кода.
AB  - Monte Carlo simulations were performed to estimate dose for treatment with
radiopharmaceutical 133Xe. This radiopharmaceutical is used in treatments in nuclear
medicine as an indication for cardiovascular and pulmonary diseases. The aim of this
paper was to evaluate the specific absorbed fraction (SAF) when this radiopharmaceutical is incorporated in the lungs. For this purpose, a Vauxhall phantom
(toraxa) is developed and was compared to the ORNL phantom. All calculations and
simulations are done using the MCNP5/X code.
PB  - Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе
C3  - 29. симпозијум ДЗЗСЦГ : зборник радова
T1  - Прорачун специфичне апсорбоване фракције у појединим органима човечјег тела приликом примене радиофармацеутика Xe-133
T1  - Calculation of specific absorbed fraction in the specific human organs due to Xe-133 radioisotope application
SP  - 328
EP  - 332
ER  - 
@conference{
author = "Jovanović, Zoran M. and Krstić, Dragana Ž. and Nikezić, Dragoslav",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8295, https://plus.sr.cobiss.net/opac7/bib/245691404, http://dzz.org.rs/wp-content/uploads/2013/06/Zbornik_XXIX_Simpozijum_DZZ_SCG_Srebrno_jezero_2.pdf",
abstract = "Монте Карло симулације су изведене за процену дозу приликом третмана са
радиофармацеутиком 133Xe. Овај радиофармацеутик се користи у третманима у
нуклеарној медицини, као индикација за кардиоваскуларне и плућне болести. Циљ
овог рада је био да се процени специфична апсорбована фракција (САФ) када је
овај радиофармацеутик инкорпориран у плућима. За ту сврху је развијен воксел
фантом (торакса) и упоређен је са ORNL фантомом. Сви прорачуни и симулације
врше помоћу MCNP5/Х кода., Monte Carlo simulations were performed to estimate dose for treatment with
radiopharmaceutical 133Xe. This radiopharmaceutical is used in treatments in nuclear
medicine as an indication for cardiovascular and pulmonary diseases. The aim of this
paper was to evaluate the specific absorbed fraction (SAF) when this radiopharmaceutical is incorporated in the lungs. For this purpose, a Vauxhall phantom
(toraxa) is developed and was compared to the ORNL phantom. All calculations and
simulations are done using the MCNP5/X code.",
publisher = "Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе",
journal = "29. симпозијум ДЗЗСЦГ : зборник радова",
title = "Прорачун специфичне апсорбоване фракције у појединим органима човечјег тела приликом примене радиофармацеутика Xe-133, Calculation of specific absorbed fraction in the specific human organs due to Xe-133 radioisotope application",
pages = "328-332"
}
Jovanović, Z. M., Krstić, D. Ž.,& Nikezić, D. (2017). Calculation of specific absorbed fraction in the specific human organs due to Xe-133 radioisotope application.
29. симпозијум ДЗЗСЦГ : зборник радова
Београд : Институт за нуклеарне науке "Винча" : Друштво за заштиту од зрачења Србије и Црне Горе., 328-332.
Jovanović ZM, Krstić DŽ, Nikezić D. Calculation of specific absorbed fraction in the specific human organs due to Xe-133 radioisotope application. 29. симпозијум ДЗЗСЦГ : зборник радова. 2017;:328-332
Jovanović Zoran M., Krstić Dragana Ž., Nikezić Dragoslav, "Calculation of specific absorbed fraction in the specific human organs due to Xe-133 radioisotope application" 29. симпозијум ДЗЗСЦГ : зборник радова (2017):328-332

Control of SrO buffer-layer formation on Si(001) using the pulsed-laser deposition technique

Jovanović, Zoran M.; Spreitzer, Matjaž; Gabor, U.; Suvorov, D.

(2016)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Spreitzer, Matjaž
AU  - Gabor, U.
AU  - Suvorov, D.
PY  - 2016
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1233
AB  - The deoxidation and passivation of a silicon surface represents one of the most important steps in the successful integration of functional oxides with silicon. Due to its reactivity and dissimilar properties with respect to oxides, silicon surfaces are conditioned using various buffer systems. Despite the quality of the resulting surface, these Sr-based buffers have not been commercialized because of the reactivity of the metallic Sr. SrO has demonstrated properties that are competitive with metallic Sr, but a successful integration with silicon has not yet been proven. In the present study we have determined the optimal pulsed-laser deposition (PLD) conditions for the SrO-induced deoxidation of a silicon surface, which results in a 2 x 1 reconstructed surface. Additionally, the as-prepared surface is oxide-free and atomically flat. The results show that the amount of SrO plays the most critical role in the optimization of the whole process. Deposited in batch mode, the amount of SrO affects the morphologies of the surfaces, which change from a dimerized surface to SrO islands and a polycrystalline layer in the final stage. However, in the case of an insufficient amount of deposited SrO, pits are formed on the surface, drastically increasing its roughness. The successful optimization of the PLD conditions for the formation of a SrO buffer layer opens a new pathway for interfacing oxides with silicon.
T2  - RSC Advances
T1  - Control of SrO buffer-layer formation on Si(001) using the pulsed-laser deposition technique
VL  - 6
IS  - 85
SP  - 82150
EP  - 82156
DO  - 10.1039/c6ra16311d
ER  - 
@article{
author = "Jovanović, Zoran M. and Spreitzer, Matjaž and Gabor, U. and Suvorov, D.",
year = "2016",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1233",
abstract = "The deoxidation and passivation of a silicon surface represents one of the most important steps in the successful integration of functional oxides with silicon. Due to its reactivity and dissimilar properties with respect to oxides, silicon surfaces are conditioned using various buffer systems. Despite the quality of the resulting surface, these Sr-based buffers have not been commercialized because of the reactivity of the metallic Sr. SrO has demonstrated properties that are competitive with metallic Sr, but a successful integration with silicon has not yet been proven. In the present study we have determined the optimal pulsed-laser deposition (PLD) conditions for the SrO-induced deoxidation of a silicon surface, which results in a 2 x 1 reconstructed surface. Additionally, the as-prepared surface is oxide-free and atomically flat. The results show that the amount of SrO plays the most critical role in the optimization of the whole process. Deposited in batch mode, the amount of SrO affects the morphologies of the surfaces, which change from a dimerized surface to SrO islands and a polycrystalline layer in the final stage. However, in the case of an insufficient amount of deposited SrO, pits are formed on the surface, drastically increasing its roughness. The successful optimization of the PLD conditions for the formation of a SrO buffer layer opens a new pathway for interfacing oxides with silicon.",
journal = "RSC Advances",
title = "Control of SrO buffer-layer formation on Si(001) using the pulsed-laser deposition technique",
volume = "6",
number = "85",
pages = "82150-82156",
doi = "10.1039/c6ra16311d"
}
Jovanović, Z. M., Spreitzer, M., Gabor, U.,& Suvorov, D. (2016). Control of SrO buffer-layer formation on Si(001) using the pulsed-laser deposition technique.
RSC Advances, 6(85), 82150-82156.
https://doi.org/10.1039/c6ra16311d
Jovanović ZM, Spreitzer M, Gabor U, Suvorov D. Control of SrO buffer-layer formation on Si(001) using the pulsed-laser deposition technique. RSC Advances. 2016;6(85):82150-82156
Jovanović Zoran M., Spreitzer Matjaž, Gabor U., Suvorov D., "Control of SrO buffer-layer formation on Si(001) using the pulsed-laser deposition technique" RSC Advances, 6, no. 85 (2016):82150-82156,
https://doi.org/10.1039/c6ra16311d .
5
5
5

Air Kerma to H-P(3) Conversion Coefficients for Exposure of the Human Eye Lens to the Selected Standard X-Ray Beam Qualities

Krstić, Dragana Ž.; Jovanović, Zoran M.; Nikezić, Dragoslav; Ciraj-Bjelac, Olivera

(2015)

TY  - CONF
AU  - Krstić, Dragana Ž.
AU  - Jovanović, Zoran M.
AU  - Nikezić, Dragoslav
AU  - Ciraj-Bjelac, Olivera
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/7126
AB  - International Commission on Radiological Protection (ICRP) has decreased the annual dose limit for the eye lens from 150 mSv down to 20 mSv for occupational exposures. The operational quantity Hp (3) has been defined for eye lens dosimetry, while cylindrical phantom approximating the shape of a head was suggested for calibration purposes. The aim of the work was to provide a set of conversion coefficients that could contribute to improving the overall quality of eye lens dose assessment. The work investigated the air kerma to Hp(3,iota)conversion coefficients, Hp(3,iota)/Ka (in Sv/Gy), based on Monte Carlo simulations for a standard beam qualities, different angulations and suitable cylindrical phantom. For incident angles iota from 0(o\) to 90(o)., the conversion coefficients Hp(3,iota)/Ka were in the range 0.44-0.88 for N-40, 0.72-1.06 for N-60, 0.91-1.63 for N-80, 1.08-1.52 for N-100, 1.22- 1.62 for N-120 and 0.14-1.56 for N-150 beam quality. The conversion factors Hp(3)/Ka provided in this work are related to standard beam qualities readily available in the calibration laboratories and are suitable for application in numerous workplace situations in medicine and industry.
C3  - RAD Conference Proceedings
T1  - Air Kerma to H-P(3) Conversion Coefficients for Exposure of the Human Eye Lens to the Selected Standard X-Ray Beam Qualities
SP  - 231
EP  - 234
ER  - 
@conference{
author = "Krstić, Dragana Ž. and Jovanović, Zoran M. and Nikezić, Dragoslav and Ciraj-Bjelac, Olivera",
year = "2015",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/7126",
abstract = "International Commission on Radiological Protection (ICRP) has decreased the annual dose limit for the eye lens from 150 mSv down to 20 mSv for occupational exposures. The operational quantity Hp (3) has been defined for eye lens dosimetry, while cylindrical phantom approximating the shape of a head was suggested for calibration purposes. The aim of the work was to provide a set of conversion coefficients that could contribute to improving the overall quality of eye lens dose assessment. The work investigated the air kerma to Hp(3,iota)conversion coefficients, Hp(3,iota)/Ka (in Sv/Gy), based on Monte Carlo simulations for a standard beam qualities, different angulations and suitable cylindrical phantom. For incident angles iota from 0(o\) to 90(o)., the conversion coefficients Hp(3,iota)/Ka were in the range 0.44-0.88 for N-40, 0.72-1.06 for N-60, 0.91-1.63 for N-80, 1.08-1.52 for N-100, 1.22- 1.62 for N-120 and 0.14-1.56 for N-150 beam quality. The conversion factors Hp(3)/Ka provided in this work are related to standard beam qualities readily available in the calibration laboratories and are suitable for application in numerous workplace situations in medicine and industry.",
journal = "RAD Conference Proceedings",
title = "Air Kerma to H-P(3) Conversion Coefficients for Exposure of the Human Eye Lens to the Selected Standard X-Ray Beam Qualities",
pages = "231-234"
}
Krstić, D. Ž., Jovanović, Z. M., Nikezić, D.,& Ciraj-Bjelac, O. (2015). Air Kerma to H-P(3) Conversion Coefficients for Exposure of the Human Eye Lens to the Selected Standard X-Ray Beam Qualities.
RAD Conference Proceedings, 231-234.
Krstić DŽ, Jovanović ZM, Nikezić D, Ciraj-Bjelac O. Air Kerma to H-P(3) Conversion Coefficients for Exposure of the Human Eye Lens to the Selected Standard X-Ray Beam Qualities. RAD Conference Proceedings. 2015;:231-234
Krstić Dragana Ž., Jovanović Zoran M., Nikezić Dragoslav, Ciraj-Bjelac Olivera, "Air Kerma to H-P(3) Conversion Coefficients for Exposure of the Human Eye Lens to the Selected Standard X-Ray Beam Qualities" RAD Conference Proceedings (2015):231-234

Silicon Surface Deoxidation Using Strontium Oxide Deposited with the Pulsed Laser Deposition Technique

Jovanović, Zoran M.; Spreitzer, Matjaž; Kovač, Janez; Klement, Dejan; Suvorov, Danilo

(2014)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Spreitzer, Matjaž
AU  - Kovač, Janez
AU  - Klement, Dejan
AU  - Suvorov, Danilo
PY  - 2014
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/230
AB  - The epitaxial growth of functional oxides on silicon substrates requires atomically defined surfaces, which are most effectively prepared using Sr-induced deoxidation. The manipulation of metallic Sr is nevertheless very delicate and requires alternative buffer materials. In the present study the applicability of the chemically much more stable SrO in the process of native-oxide removal and silicon-surface stabilization was investigated using the pulsed-laser deposition technique (PLD), while the as-derived surfaces were analyzed in situ using reflection high-energy electron diffraction and ex situ using X-ray photoelectron spectroscopy, X-ray reflectivity, and atomic force microscopy. After the deposition of the SrO over Si/SiO2, in a vacuum, different annealing conditions, with the temperature ranging up to 850 degrees C, were applied. Because the deposition took place in a vacuum, a multilayer composed of SrO, Sr-silicate, modified Si, and Si as a substrate was initially formed. During the subsequent annealing the topmost layer epitaxially orders in the form of islands, while a further increase in the annealing temperature induced rapid desorption and surface deoxidation, leading to a 2 x 1 Sr-reconstructed silicon surface. However, the process is accompanied by distinctive surface roughening, and therefore the experimental conditions must be carefully optimized to minimize the effect. The results of the study revealed, for the first time, an effective pathway for the preparation of a SrO-induced buffer layer on a silicon substrate using PLD, which can be subsequently utilized for the epitaxial growth of functional oxides.
T2  - ACS Applied Materials and Interfaces
T1  - Silicon Surface Deoxidation Using Strontium Oxide Deposited with the Pulsed Laser Deposition Technique
VL  - 6
IS  - 20
SP  - 18205
EP  - 18214
DO  - 10.1021/am505202p
ER  - 
@article{
author = "Jovanović, Zoran M. and Spreitzer, Matjaž and Kovač, Janez and Klement, Dejan and Suvorov, Danilo",
year = "2014",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/230",
abstract = "The epitaxial growth of functional oxides on silicon substrates requires atomically defined surfaces, which are most effectively prepared using Sr-induced deoxidation. The manipulation of metallic Sr is nevertheless very delicate and requires alternative buffer materials. In the present study the applicability of the chemically much more stable SrO in the process of native-oxide removal and silicon-surface stabilization was investigated using the pulsed-laser deposition technique (PLD), while the as-derived surfaces were analyzed in situ using reflection high-energy electron diffraction and ex situ using X-ray photoelectron spectroscopy, X-ray reflectivity, and atomic force microscopy. After the deposition of the SrO over Si/SiO2, in a vacuum, different annealing conditions, with the temperature ranging up to 850 degrees C, were applied. Because the deposition took place in a vacuum, a multilayer composed of SrO, Sr-silicate, modified Si, and Si as a substrate was initially formed. During the subsequent annealing the topmost layer epitaxially orders in the form of islands, while a further increase in the annealing temperature induced rapid desorption and surface deoxidation, leading to a 2 x 1 Sr-reconstructed silicon surface. However, the process is accompanied by distinctive surface roughening, and therefore the experimental conditions must be carefully optimized to minimize the effect. The results of the study revealed, for the first time, an effective pathway for the preparation of a SrO-induced buffer layer on a silicon substrate using PLD, which can be subsequently utilized for the epitaxial growth of functional oxides.",
journal = "ACS Applied Materials and Interfaces",
title = "Silicon Surface Deoxidation Using Strontium Oxide Deposited with the Pulsed Laser Deposition Technique",
volume = "6",
number = "20",
pages = "18205-18214",
doi = "10.1021/am505202p"
}
Jovanović, Z. M., Spreitzer, M., Kovač, J., Klement, D.,& Suvorov, D. (2014). Silicon Surface Deoxidation Using Strontium Oxide Deposited with the Pulsed Laser Deposition Technique.
ACS Applied Materials and Interfaces, 6(20), 18205-18214.
https://doi.org/10.1021/am505202p
Jovanović ZM, Spreitzer M, Kovač J, Klement D, Suvorov D. Silicon Surface Deoxidation Using Strontium Oxide Deposited with the Pulsed Laser Deposition Technique. ACS Applied Materials and Interfaces. 2014;6(20):18205-18214
Jovanović Zoran M., Spreitzer Matjaž, Kovač Janez, Klement Dejan, Suvorov Danilo, "Silicon Surface Deoxidation Using Strontium Oxide Deposited with the Pulsed Laser Deposition Technique" ACS Applied Materials and Interfaces, 6, no. 20 (2014):18205-18214,
https://doi.org/10.1021/am505202p .
11
10
10

Platinum-mediated healing of defective graphene produced by irradiating glassy carbon with a hydrogen ion-beam

Jovanović, Zoran M.; Pašti, Igor A.; Kalijadis, Ana; Jovanović, Sonja; Laušević, Zoran

(2013)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Pašti, Igor A.
AU  - Kalijadis, Ana
AU  - Jovanović, Sonja
AU  - Laušević, Zoran
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5598
AB  - The effect of platinum catalyst on the thermally activated healing of defects produced in a graphene-ribbon network by irradiating glassy carbon with a 15 key hydrogen-ion beam has been investigated by Raman spectrometry. The platinum has been incorporated into glassy carbon by hydrogen-ion beam irradiation of a thin layer of platinum salt deposited on the glassy carbon surface. The presence of platinum is beneficial because it becomes incorporated by ion-beam mixing and facilitates the structural healing of the amorphous subsurface layer by decreasing the healing temperature from 500 degrees C to 270 degrees C in comparison to irradiated glassy carbon that contains no platinum. In the case of chemically doped platinum in glassy carbon the in-plane structural ordering, demonstrated by the decreasing I-D/I-G ratio, is a linear function of the platinum added to the phenol-formaldehyde resin as precursor. The results of the density functional theory calculations showed that platinum mediates the reorganization of the bond network and the removal of defects present in the graphene layer. (c) 2013 Elsevier B.V. All rights reserved.
T2  - Materials Chemistry and Physics
T1  - Platinum-mediated healing of defective graphene produced by irradiating glassy carbon with a hydrogen ion-beam
VL  - 141
IS  - 1
SP  - 27
EP  - 34
DO  - 10.1016/j.matchemphys.2013.03.050
ER  - 
@article{
author = "Jovanović, Zoran M. and Pašti, Igor A. and Kalijadis, Ana and Jovanović, Sonja and Laušević, Zoran",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5598",
abstract = "The effect of platinum catalyst on the thermally activated healing of defects produced in a graphene-ribbon network by irradiating glassy carbon with a 15 key hydrogen-ion beam has been investigated by Raman spectrometry. The platinum has been incorporated into glassy carbon by hydrogen-ion beam irradiation of a thin layer of platinum salt deposited on the glassy carbon surface. The presence of platinum is beneficial because it becomes incorporated by ion-beam mixing and facilitates the structural healing of the amorphous subsurface layer by decreasing the healing temperature from 500 degrees C to 270 degrees C in comparison to irradiated glassy carbon that contains no platinum. In the case of chemically doped platinum in glassy carbon the in-plane structural ordering, demonstrated by the decreasing I-D/I-G ratio, is a linear function of the platinum added to the phenol-formaldehyde resin as precursor. The results of the density functional theory calculations showed that platinum mediates the reorganization of the bond network and the removal of defects present in the graphene layer. (c) 2013 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Platinum-mediated healing of defective graphene produced by irradiating glassy carbon with a hydrogen ion-beam",
volume = "141",
number = "1",
pages = "27-34",
doi = "10.1016/j.matchemphys.2013.03.050"
}
Jovanović, Z. M., Pašti, I. A., Kalijadis, A., Jovanović, S.,& Laušević, Z. (2013). Platinum-mediated healing of defective graphene produced by irradiating glassy carbon with a hydrogen ion-beam.
Materials Chemistry and Physics, 141(1), 27-34.
https://doi.org/10.1016/j.matchemphys.2013.03.050
Jovanović ZM, Pašti IA, Kalijadis A, Jovanović S, Laušević Z. Platinum-mediated healing of defective graphene produced by irradiating glassy carbon with a hydrogen ion-beam. Materials Chemistry and Physics. 2013;141(1):27-34
Jovanović Zoran M., Pašti Igor A., Kalijadis Ana, Jovanović Sonja, Laušević Zoran, "Platinum-mediated healing of defective graphene produced by irradiating glassy carbon with a hydrogen ion-beam" Materials Chemistry and Physics, 141, no. 1 (2013):27-34,
https://doi.org/10.1016/j.matchemphys.2013.03.050 .
7
7
8

Boron ion irradiation induced structural and surface modification of glassy carbon

Kalijadis, Ana; Jovanović, Zoran M.; Cvijović-Alagić, Ivana; Laušević, Zoran

(2013)

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Jovanović, Zoran M.
AU  - Cvijović-Alagić, Ivana
AU  - Laušević, Zoran
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5783
AB  - The incorporation of boron into glassy carbon was achieved by irradiating two different types of targets: glassy carbon polymer precursor and carbonized glassy carbon. Targets were irradiated with a 45 keV B3+ ion beam in the fluence range of 5 x 10(15)-5 x 10(16) ions cm(-2). For both types of targets, the implanted boron was located in a narrow region under the surface. Following irradiation, the polymer was carbonized under the same condition as the glassy carbon samples (at 1273 K) and examined by Raman spectroscopy, temperature programmed desorption, hardness and cyclic voltammetry measurements. Structural analysis showed that during the carbonization process of the irradiated polymers, boron is substitutionally incorporated into the glassy carbon structure, while for irradiated carbonized glassy carbon samples, boron irradiation caused an increase of the sp(3) carbon fraction, which is most pronounced for the highest fluence irradiation. Further analyses showed that different nature of boron incorporation, and thus changed structural parameters, are crucial for obtaining glassy carbon samples with modified mechanical, chemical and electrochemical properties over a wide range. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - Boron ion irradiation induced structural and surface modification of glassy carbon
VL  - 316
SP  - 17
EP  - 21
DO  - 10.1016/j.nimb.2013.08.030
ER  - 
@article{
author = "Kalijadis, Ana and Jovanović, Zoran M. and Cvijović-Alagić, Ivana and Laušević, Zoran",
year = "2013",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/5783",
abstract = "The incorporation of boron into glassy carbon was achieved by irradiating two different types of targets: glassy carbon polymer precursor and carbonized glassy carbon. Targets were irradiated with a 45 keV B3+ ion beam in the fluence range of 5 x 10(15)-5 x 10(16) ions cm(-2). For both types of targets, the implanted boron was located in a narrow region under the surface. Following irradiation, the polymer was carbonized under the same condition as the glassy carbon samples (at 1273 K) and examined by Raman spectroscopy, temperature programmed desorption, hardness and cyclic voltammetry measurements. Structural analysis showed that during the carbonization process of the irradiated polymers, boron is substitutionally incorporated into the glassy carbon structure, while for irradiated carbonized glassy carbon samples, boron irradiation caused an increase of the sp(3) carbon fraction, which is most pronounced for the highest fluence irradiation. Further analyses showed that different nature of boron incorporation, and thus changed structural parameters, are crucial for obtaining glassy carbon samples with modified mechanical, chemical and electrochemical properties over a wide range. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "Boron ion irradiation induced structural and surface modification of glassy carbon",
volume = "316",
pages = "17-21",
doi = "10.1016/j.nimb.2013.08.030"
}
Kalijadis, A., Jovanović, Z. M., Cvijović-Alagić, I.,& Laušević, Z. (2013). Boron ion irradiation induced structural and surface modification of glassy carbon.
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 316, 17-21.
https://doi.org/10.1016/j.nimb.2013.08.030
Kalijadis A, Jovanović ZM, Cvijović-Alagić I, Laušević Z. Boron ion irradiation induced structural and surface modification of glassy carbon. Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2013;316:17-21
Kalijadis Ana, Jovanović Zoran M., Cvijović-Alagić Ivana, Laušević Zoran, "Boron ion irradiation induced structural and surface modification of glassy carbon" Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 316 (2013):17-21,
https://doi.org/10.1016/j.nimb.2013.08.030 .
1
1
1

Glassy carbon and boron doped glassy carbon electrodes for voltammetric determination of linuron herbicide in the selected samples

Đorđević, Jelena S.; Kalijadis, Ana; Kumrić, Ksenija; Jovanović, Zoran M.; Laušević, Zoran; Trtić-Petrović, Tatjana M.

(2012)

TY  - JOUR
AU  - Đorđević, Jelena S.
AU  - Kalijadis, Ana
AU  - Kumrić, Ksenija
AU  - Jovanović, Zoran M.
AU  - Laušević, Zoran
AU  - Trtić-Petrović, Tatjana M.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4863
AB  - In this study the application of home-made unmodified (GC) and bulk modified boron doped glassy carbon (GCB) electrodes for the voltammetric determination of the linuron was investigated. The electrodes were synthesized with a moderate temperature treatment (1000A degrees C). Obtained results were compared with the electrochemical determination of the linuron using a commercial glassy carbon electrode (GC-Metrohm). The peak potential (E (p) ) of linuron oxidation in 0.1 mol dm(-3) H2SO4 as electrolyte was similar for all applied electrodes: 1.31, 1.34 and 1.28 V for GCB, GC and GC-Metrohm electrodes, respectively. Potential of linuron oxidation and current density depend on the pH of supporting electrolyte. Applying GCB and GC-Metrohm electrodes the most intensive electrochemical response for linuron was obtained in strongly acidic solution (0.1 mol dm(-3) H2SO4). Applying the boron doped glassy carbon electrode the broadest linear range (0.005-0.1 A mu mol cm(-3)) for the linuron determination was obtained. The results of voltammetric determination of the linuron in spiked water samples showed good correlation between added and found amounts of linuron and also are in good agreement with the results obtained by HPLC-UV method. This appears to be the first application of a boron doped glassy carbon electrode for voltammetric determination of the environmental important compounds.
T2  - Central European Journal of Chemistry
T1  - Glassy carbon and boron doped glassy carbon electrodes for voltammetric determination of linuron herbicide in the selected samples
VL  - 10
IS  - 4
SP  - 1271
EP  - 1279
DO  - 10.2478/s11532-012-0042-1
ER  - 
@article{
author = "Đorđević, Jelena S. and Kalijadis, Ana and Kumrić, Ksenija and Jovanović, Zoran M. and Laušević, Zoran and Trtić-Petrović, Tatjana M.",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4863",
abstract = "In this study the application of home-made unmodified (GC) and bulk modified boron doped glassy carbon (GCB) electrodes for the voltammetric determination of the linuron was investigated. The electrodes were synthesized with a moderate temperature treatment (1000A degrees C). Obtained results were compared with the electrochemical determination of the linuron using a commercial glassy carbon electrode (GC-Metrohm). The peak potential (E (p) ) of linuron oxidation in 0.1 mol dm(-3) H2SO4 as electrolyte was similar for all applied electrodes: 1.31, 1.34 and 1.28 V for GCB, GC and GC-Metrohm electrodes, respectively. Potential of linuron oxidation and current density depend on the pH of supporting electrolyte. Applying GCB and GC-Metrohm electrodes the most intensive electrochemical response for linuron was obtained in strongly acidic solution (0.1 mol dm(-3) H2SO4). Applying the boron doped glassy carbon electrode the broadest linear range (0.005-0.1 A mu mol cm(-3)) for the linuron determination was obtained. The results of voltammetric determination of the linuron in spiked water samples showed good correlation between added and found amounts of linuron and also are in good agreement with the results obtained by HPLC-UV method. This appears to be the first application of a boron doped glassy carbon electrode for voltammetric determination of the environmental important compounds.",
journal = "Central European Journal of Chemistry",
title = "Glassy carbon and boron doped glassy carbon electrodes for voltammetric determination of linuron herbicide in the selected samples",
volume = "10",
number = "4",
pages = "1271-1279",
doi = "10.2478/s11532-012-0042-1"
}
Đorđević, J. S., Kalijadis, A., Kumrić, K., Jovanović, Z. M., Laušević, Z.,& Trtić-Petrović, T. M. (2012). Glassy carbon and boron doped glassy carbon electrodes for voltammetric determination of linuron herbicide in the selected samples.
Central European Journal of Chemistry, 10(4), 1271-1279.
https://doi.org/10.2478/s11532-012-0042-1
Đorđević JS, Kalijadis A, Kumrić K, Jovanović ZM, Laušević Z, Trtić-Petrović TM. Glassy carbon and boron doped glassy carbon electrodes for voltammetric determination of linuron herbicide in the selected samples. Central European Journal of Chemistry. 2012;10(4):1271-1279
Đorđević Jelena S., Kalijadis Ana, Kumrić Ksenija, Jovanović Zoran M., Laušević Zoran, Trtić-Petrović Tatjana M., "Glassy carbon and boron doped glassy carbon electrodes for voltammetric determination of linuron herbicide in the selected samples" Central European Journal of Chemistry, 10, no. 4 (2012):1271-1279,
https://doi.org/10.2478/s11532-012-0042-1 .
8
8
8

Pd-Ag hydrogen content and electrical resistivity: Temperature and pressure effect

Pozio, Alfonso; Jovanović, Zoran M.; Lo Presti, R.; De Francesco, M.; Tosti, Silvano

(2012)

TY  - JOUR
AU  - Pozio, Alfonso
AU  - Jovanović, Zoran M.
AU  - Lo Presti, R.
AU  - De Francesco, M.
AU  - Tosti, Silvano
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4877
AB  - A Pd-Ag (silver 21 wt.%) thin sheet has been tested in order to measure its electrical resistivity by means of electrochemical impedance spectroscopy under different hydrogenation conditions in the temperature range 25-350 degrees C. The metal sheet has been assembled with the electrical contacts in a gas tight module where pure hydrogen has been fed at a pressure of 100 and 200 kPa. The electrical resistivity vs. both the temperature and hydrogen pressure presents a characteristic S-shape curve with a minimum and a maximum of the resistivity. This behaviour permitted to recognize three stages: (1) introduction of H into Pd-Ag lattice up to a well-defined HIM ratio increases the resistivity; (2) further uptake of hydrogen with a decrease of resistivity until a higher HIM ratio; (3) above this higher HIM ratio the resistivity increases sharply. The behaviour of the electrical resistivity is discussed in details by considering the hydrogen uploading into the metal lattice, its effect on the conduction electrons and the scattering of the hydrogen atoms into the metal lattice. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Pd-Ag hydrogen content and electrical resistivity: Temperature and pressure effect
VL  - 37
IS  - 9
SP  - 7925
EP  - 7933
DO  - 10.1016/j.ijhydene.2012.01.108
ER  - 
@article{
author = "Pozio, Alfonso and Jovanović, Zoran M. and Lo Presti, R. and De Francesco, M. and Tosti, Silvano",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4877",
abstract = "A Pd-Ag (silver 21 wt.%) thin sheet has been tested in order to measure its electrical resistivity by means of electrochemical impedance spectroscopy under different hydrogenation conditions in the temperature range 25-350 degrees C. The metal sheet has been assembled with the electrical contacts in a gas tight module where pure hydrogen has been fed at a pressure of 100 and 200 kPa. The electrical resistivity vs. both the temperature and hydrogen pressure presents a characteristic S-shape curve with a minimum and a maximum of the resistivity. This behaviour permitted to recognize three stages: (1) introduction of H into Pd-Ag lattice up to a well-defined HIM ratio increases the resistivity; (2) further uptake of hydrogen with a decrease of resistivity until a higher HIM ratio; (3) above this higher HIM ratio the resistivity increases sharply. The behaviour of the electrical resistivity is discussed in details by considering the hydrogen uploading into the metal lattice, its effect on the conduction electrons and the scattering of the hydrogen atoms into the metal lattice. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Pd-Ag hydrogen content and electrical resistivity: Temperature and pressure effect",
volume = "37",
number = "9",
pages = "7925-7933",
doi = "10.1016/j.ijhydene.2012.01.108"
}
Pozio, A., Jovanović, Z. M., Lo Presti, R., De Francesco, M.,& Tosti, S. (2012). Pd-Ag hydrogen content and electrical resistivity: Temperature and pressure effect.
International Journal of Hydrogen Energy, 37(9), 7925-7933.
https://doi.org/10.1016/j.ijhydene.2012.01.108
Pozio A, Jovanović ZM, Lo Presti R, De Francesco M, Tosti S. Pd-Ag hydrogen content and electrical resistivity: Temperature and pressure effect. International Journal of Hydrogen Energy. 2012;37(9):7925-7933
Pozio Alfonso, Jovanović Zoran M., Lo Presti R., De Francesco M., Tosti Silvano, "Pd-Ag hydrogen content and electrical resistivity: Temperature and pressure effect" International Journal of Hydrogen Energy, 37, no. 9 (2012):7925-7933,
https://doi.org/10.1016/j.ijhydene.2012.01.108 .
11
10
10

Influence of vacant CeO2 nanostructured ceramics on MgH2 hydrogen desorption properties

Gulicovski, Jelena J.; Rašković-Lovre, Željka; Kurko, Sandra V.; Vujasin, Radojka; Jovanović, Zoran M.; Matović, Ljiljana; Grbović-Novaković, Jasmina

(2012)

TY  - JOUR
AU  - Gulicovski, Jelena J.
AU  - Rašković-Lovre, Željka
AU  - Kurko, Sandra V.
AU  - Vujasin, Radojka
AU  - Jovanović, Zoran M.
AU  - Matović, Ljiljana
AU  - Grbović-Novaković, Jasmina
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4699
AB  - The hydrogen desorption (HD) properties of MgH2-CeO2 composite prepared by mechanically milling of MgH2 and cubic CeO2nano have been examined. Morphology and microstructure of composites have been studied by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), laser scattering analysis and correlated with desorption properties obtained by means of temperature programmed desorption (TPD). It has been shown that decrease of crystallite and particle size of the samples lead to significant lowering of desorption temperature. Further, the activation energy for desorption (E-A(des)) has been calculated using Kissinger equation. Obtained value of 60 +/- 10 kJ/mol indicates that the activation energy of hydrogen desorption is sufficiently decreased by the catalytic effect of vacant CeO2 structure. Consequently the surface activation of sample plays a major role in HD reaction. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Influence of vacant CeO2 nanostructured ceramics on MgH2 hydrogen desorption properties
VL  - 38
IS  - 2
SP  - 1181
EP  - 1186
DO  - 10.1016/j.ceramint.2011.08.047
ER  - 
@article{
author = "Gulicovski, Jelena J. and Rašković-Lovre, Željka and Kurko, Sandra V. and Vujasin, Radojka and Jovanović, Zoran M. and Matović, Ljiljana and Grbović-Novaković, Jasmina",
year = "2012",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4699",
abstract = "The hydrogen desorption (HD) properties of MgH2-CeO2 composite prepared by mechanically milling of MgH2 and cubic CeO2nano have been examined. Morphology and microstructure of composites have been studied by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), laser scattering analysis and correlated with desorption properties obtained by means of temperature programmed desorption (TPD). It has been shown that decrease of crystallite and particle size of the samples lead to significant lowering of desorption temperature. Further, the activation energy for desorption (E-A(des)) has been calculated using Kissinger equation. Obtained value of 60 +/- 10 kJ/mol indicates that the activation energy of hydrogen desorption is sufficiently decreased by the catalytic effect of vacant CeO2 structure. Consequently the surface activation of sample plays a major role in HD reaction. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Influence of vacant CeO2 nanostructured ceramics on MgH2 hydrogen desorption properties",
volume = "38",
number = "2",
pages = "1181-1186",
doi = "10.1016/j.ceramint.2011.08.047"
}
Gulicovski, J. J., Rašković-Lovre, Ž., Kurko, S. V., Vujasin, R., Jovanović, Z. M., Matović, L.,& Grbović-Novaković, J. (2012). Influence of vacant CeO2 nanostructured ceramics on MgH2 hydrogen desorption properties.
Ceramics International, 38(2), 1181-1186.
https://doi.org/10.1016/j.ceramint.2011.08.047
Gulicovski JJ, Rašković-Lovre Ž, Kurko SV, Vujasin R, Jovanović ZM, Matović L, Grbović-Novaković J. Influence of vacant CeO2 nanostructured ceramics on MgH2 hydrogen desorption properties. Ceramics International. 2012;38(2):1181-1186
Gulicovski Jelena J., Rašković-Lovre Željka, Kurko Sandra V., Vujasin Radojka, Jovanović Zoran M., Matović Ljiljana, Grbović-Novaković Jasmina, "Influence of vacant CeO2 nanostructured ceramics on MgH2 hydrogen desorption properties" Ceramics International, 38, no. 2 (2012):1181-1186,
https://doi.org/10.1016/j.ceramint.2011.08.047 .
27
32
34

Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)

Šiljegović, Milorad; Kačarević-Popović, Zorica M.; Krklješ, Aleksandra N.; Stojanović, Zoran A.; Jovanović, Zoran M.

(2011)

TY  - JOUR
AU  - Šiljegović, Milorad
AU  - Kačarević-Popović, Zorica M.
AU  - Krklješ, Aleksandra N.
AU  - Stojanović, Zoran A.
AU  - Jovanović, Zoran M.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4263
AB  - Ion bombardment is a suitable tool to modify the optical properties of polymers. In the present study the effect of ion bombardment on the optical absorption of ethylene-norbornene copolymer (TOPAS) was studied using ultraviolet-visible (UV-Vis) and Raman spectroscopy. Polymer samples were bombarded with 60 key C4+ and N4+ ion beams to various fluences ranging from 1.0 x 10(13) to 1.0 x 10(16) cm(-2). The indirect and direct band gaps have been determined. The values of direct band gaps have been found to be greater than the corresponding values of the indirect band gaps. Activation energy has been investigated as the function of ion fluences. The number of carbon atoms per conjugated length is determined according to modified Taucs equation. The correlation between the optical band gap, activation energy for optical transition and the number of carbon atoms per conjugated length as well as chemical structure changes induced by ion beams irradiation have been discussed in the case of ethylene-norbornene copolymer. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)
VL  - 269
IS  - 7
SP  - 708
EP  - 715
DO  - 10.1016/j.nimb.2011.01.134
ER  - 
@article{
author = "Šiljegović, Milorad and Kačarević-Popović, Zorica M. and Krklješ, Aleksandra N. and Stojanović, Zoran A. and Jovanović, Zoran M.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4263",
abstract = "Ion bombardment is a suitable tool to modify the optical properties of polymers. In the present study the effect of ion bombardment on the optical absorption of ethylene-norbornene copolymer (TOPAS) was studied using ultraviolet-visible (UV-Vis) and Raman spectroscopy. Polymer samples were bombarded with 60 key C4+ and N4+ ion beams to various fluences ranging from 1.0 x 10(13) to 1.0 x 10(16) cm(-2). The indirect and direct band gaps have been determined. The values of direct band gaps have been found to be greater than the corresponding values of the indirect band gaps. Activation energy has been investigated as the function of ion fluences. The number of carbon atoms per conjugated length is determined according to modified Taucs equation. The correlation between the optical band gap, activation energy for optical transition and the number of carbon atoms per conjugated length as well as chemical structure changes induced by ion beams irradiation have been discussed in the case of ethylene-norbornene copolymer. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)",
volume = "269",
number = "7",
pages = "708-715",
doi = "10.1016/j.nimb.2011.01.134"
}
Šiljegović, M., Kačarević-Popović, Z. M., Krklješ, A. N., Stojanović, Z. A.,& Jovanović, Z. M. (2011). Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS).
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269(7), 708-715.
https://doi.org/10.1016/j.nimb.2011.01.134
Šiljegović M, Kačarević-Popović ZM, Krklješ AN, Stojanović ZA, Jovanović ZM. Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS). Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2011;269(7):708-715
Šiljegović Milorad, Kačarević-Popović Zorica M., Krklješ Aleksandra N., Stojanović Zoran A., Jovanović Zoran M., "Effect of N4+ and C4+ ion beam bombardment on the optical and structural characteristics of ethylene-norbornene copolymer (TOPAS)" Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269, no. 7 (2011):708-715,
https://doi.org/10.1016/j.nimb.2011.01.134 .
13
9
11

Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams

Šiljegović, Milorad; Kačarević-Popović, Zorica M.; Bibić, Nataša M.; Jovanović, Zoran M.; Maletić, Slobodan; Stchakovsky, M.; Krklješ, Aleksandra N.

(2011)

TY  - JOUR
AU  - Šiljegović, Milorad
AU  - Kačarević-Popović, Zorica M.
AU  - Bibić, Nataša M.
AU  - Jovanović, Zoran M.
AU  - Maletić, Slobodan
AU  - Stchakovsky, M.
AU  - Krklješ, Aleksandra N.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4516
AB  - Fluorinated ethylene propylene (FEP) and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) (PFA) copolymer films were irradiated in vacuum with 60 key C4+ and N4+ ions to fluences ranging from 1.0 x 10(12) to 5.0 x 10(15) cm(-2). Changes in optical and dielectric properties were analyzed by spectroscopic ellipsometry and ultraviolet-visible (UV-vis), Raman and dielectric relaxation spectroscopies. Direct and indirect energy band gap values were determined from the absorption edge in the 200-800 nm region using Taucs relation. The values of the direct energy gap have been found to be greater than the corresponding values of the indirect energy gap. Significant changes in the index of refraction, and 13 and gamma dielectric relaxations were observed in the case of N4+ irradiated FEP and PFA samples. (C) 2011 Elsevier Ltd. All rights reserved.
T2  - Radiation Physics and Chemistry
T1  - Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams
VL  - 80
IS  - 12
SP  - 1378
EP  - 1385
DO  - 10.1016/j.radphyschem.2011.08.012
ER  - 
@article{
author = "Šiljegović, Milorad and Kačarević-Popović, Zorica M. and Bibić, Nataša M. and Jovanović, Zoran M. and Maletić, Slobodan and Stchakovsky, M. and Krklješ, Aleksandra N.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4516",
abstract = "Fluorinated ethylene propylene (FEP) and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) (PFA) copolymer films were irradiated in vacuum with 60 key C4+ and N4+ ions to fluences ranging from 1.0 x 10(12) to 5.0 x 10(15) cm(-2). Changes in optical and dielectric properties were analyzed by spectroscopic ellipsometry and ultraviolet-visible (UV-vis), Raman and dielectric relaxation spectroscopies. Direct and indirect energy band gap values were determined from the absorption edge in the 200-800 nm region using Taucs relation. The values of the direct energy gap have been found to be greater than the corresponding values of the indirect energy gap. Significant changes in the index of refraction, and 13 and gamma dielectric relaxations were observed in the case of N4+ irradiated FEP and PFA samples. (C) 2011 Elsevier Ltd. All rights reserved.",
journal = "Radiation Physics and Chemistry",
title = "Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams",
volume = "80",
number = "12",
pages = "1378-1385",
doi = "10.1016/j.radphyschem.2011.08.012"
}
Šiljegović, M., Kačarević-Popović, Z. M., Bibić, N. M., Jovanović, Z. M., Maletić, S., Stchakovsky, M.,& Krklješ, A. N. (2011). Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams.
Radiation Physics and Chemistry, 80(12), 1378-1385.
https://doi.org/10.1016/j.radphyschem.2011.08.012
Šiljegović M, Kačarević-Popović ZM, Bibić NM, Jovanović ZM, Maletić S, Stchakovsky M, Krklješ AN. Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams. Radiation Physics and Chemistry. 2011;80(12):1378-1385
Šiljegović Milorad, Kačarević-Popović Zorica M., Bibić Nataša M., Jovanović Zoran M., Maletić Slobodan, Stchakovsky M., Krklješ Aleksandra N., "Optical and dielectric properties of fluorinated ethylene propylene and tetrafluoroethylene-perfluoro(alkoxy vinyl ether) copolymer films modified by low energy N4+ and C4+ ion beams" Radiation Physics and Chemistry, 80, no. 12 (2011):1378-1385,
https://doi.org/10.1016/j.radphyschem.2011.08.012 .
21
22
21

Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption

Kalijadis, Ana; Vukcevic, Marija M.; Jovanović, Zoran M.; Laušević, Zoran; Lausevic, Mila D.

(2011)

TY  - JOUR
AU  - Kalijadis, Ana
AU  - Vukcevic, Marija M.
AU  - Jovanović, Zoran M.
AU  - Laušević, Zoran
AU  - Lausevic, Mila D.
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4342
AB  - The surface characteristics of different carbon materials: activated carbon, carbon felt, glassy carbon and a porous carbon monolith were investigated. The specific surface area was examined by the BET method with N(2) adsorption, the amount and the type of surface oxygen groups by Boehm titration as well as by temperature-programmed desorption (TPD). By comparing the results obtained using BET analysis with those of TPD and the Boehm method, it was found that the number of surface groups was not proportional to the specific surface area. The total amount of oxygen groups, obtained by TPD, is higher than the amount obtained by Boehms method for porous samples. The inconsistencies between these results originate from the fact that the Boehm method is limited to the determination of acidic and basic groups, whereas TPD provides information on the total number of all surface oxygen groups. In addition, the presence of porosity could reduce the solvent-accessible surface in the Boehm method. The TPD profiles of CO evolution showed the presence of a low temperature maximum, below 650 K, which originates from CO(2) reduction on the carbon material surface.
T2  - Journal of the Serbian Chemical Society
T1  - Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption
VL  - 76
IS  - 5
SP  - 757
EP  - 768
DO  - 10.2298/JSC091224056K
ER  - 
@article{
author = "Kalijadis, Ana and Vukcevic, Marija M. and Jovanović, Zoran M. and Laušević, Zoran and Lausevic, Mila D.",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4342",
abstract = "The surface characteristics of different carbon materials: activated carbon, carbon felt, glassy carbon and a porous carbon monolith were investigated. The specific surface area was examined by the BET method with N(2) adsorption, the amount and the type of surface oxygen groups by Boehm titration as well as by temperature-programmed desorption (TPD). By comparing the results obtained using BET analysis with those of TPD and the Boehm method, it was found that the number of surface groups was not proportional to the specific surface area. The total amount of oxygen groups, obtained by TPD, is higher than the amount obtained by Boehms method for porous samples. The inconsistencies between these results originate from the fact that the Boehm method is limited to the determination of acidic and basic groups, whereas TPD provides information on the total number of all surface oxygen groups. In addition, the presence of porosity could reduce the solvent-accessible surface in the Boehm method. The TPD profiles of CO evolution showed the presence of a low temperature maximum, below 650 K, which originates from CO(2) reduction on the carbon material surface.",
journal = "Journal of the Serbian Chemical Society",
title = "Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption",
volume = "76",
number = "5",
pages = "757-768",
doi = "10.2298/JSC091224056K"
}
Kalijadis, A., Vukcevic, M. M., Jovanović, Z. M., Laušević, Z.,& Lausevic, M. D. (2011). Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption.
Journal of the Serbian Chemical Society, 76(5), 757-768.
https://doi.org/10.2298/JSC091224056K
Kalijadis A, Vukcevic MM, Jovanović ZM, Laušević Z, Lausevic MD. Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption. Journal of the Serbian Chemical Society. 2011;76(5):757-768
Kalijadis Ana, Vukcevic Marija M., Jovanović Zoran M., Laušević Zoran, Lausevic Mila D., "Characterisation of surface oxygen groups on different carbon materials by the Boehm method and temperature-programmed desorption" Journal of the Serbian Chemical Society, 76, no. 5 (2011):757-768,
https://doi.org/10.2298/JSC091224056K .
46
47
51

Pd-Ag hydrogen diffusion cathode for alkaline water electrolysers

Pozio, Alfonso; De Francesco, M.; Jovanović, Zoran M.; Tosti, Silvano

(2011)

TY  - JOUR
AU  - Pozio, Alfonso
AU  - De Francesco, M.
AU  - Jovanović, Zoran M.
AU  - Tosti, Silvano
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4320
AB  - This paper describes experimental work involving the direct-current electrolysis of potassium hydroxide solutions at medium temperatures (up to 80 degrees C) and atmospheric pressure. An electrolytic cell with a palladium silver alloy cathode as a source of ultrapure hydrogen was designed and tested. This cathode consists of a dense Pd-Ag tube capable to selectively separate hydrogen from other gases. Thin wall thickness (50 mu m) of the permeator tube permitted to attain high hydrogen permeation fluxes and high hydrogen yields. Starting from results, a prototype electrolyzer is designed. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Pd-Ag hydrogen diffusion cathode for alkaline water electrolysers
VL  - 36
IS  - 9
SP  - 5211
EP  - 5217
DO  - 10.1016/j.ijhydene.2011.01.168
ER  - 
@article{
author = "Pozio, Alfonso and De Francesco, M. and Jovanović, Zoran M. and Tosti, Silvano",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4320",
abstract = "This paper describes experimental work involving the direct-current electrolysis of potassium hydroxide solutions at medium temperatures (up to 80 degrees C) and atmospheric pressure. An electrolytic cell with a palladium silver alloy cathode as a source of ultrapure hydrogen was designed and tested. This cathode consists of a dense Pd-Ag tube capable to selectively separate hydrogen from other gases. Thin wall thickness (50 mu m) of the permeator tube permitted to attain high hydrogen permeation fluxes and high hydrogen yields. Starting from results, a prototype electrolyzer is designed. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Pd-Ag hydrogen diffusion cathode for alkaline water electrolysers",
volume = "36",
number = "9",
pages = "5211-5217",
doi = "10.1016/j.ijhydene.2011.01.168"
}
Pozio, A., De Francesco, M., Jovanović, Z. M.,& Tosti, S. (2011). Pd-Ag hydrogen diffusion cathode for alkaline water electrolysers.
International Journal of Hydrogen Energy, 36(9), 5211-5217.
https://doi.org/10.1016/j.ijhydene.2011.01.168
Pozio A, De Francesco M, Jovanović ZM, Tosti S. Pd-Ag hydrogen diffusion cathode for alkaline water electrolysers. International Journal of Hydrogen Energy. 2011;36(9):5211-5217
Pozio Alfonso, De Francesco M., Jovanović Zoran M., Tosti Silvano, "Pd-Ag hydrogen diffusion cathode for alkaline water electrolysers" International Journal of Hydrogen Energy, 36, no. 9 (2011):5211-5217,
https://doi.org/10.1016/j.ijhydene.2011.01.168 .
11
10
11

Structural modification of PdAg alloy induced by electrolytic hydrogen absorption

Jovanović, Zoran M.; De Francesco, M.; Tosti, Silvano; Pozio, Alfonso

(2011)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - De Francesco, M.
AU  - Tosti, Silvano
AU  - Pozio, Alfonso
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4400
AB  - The palladium (79%) silver (21%) alloy has been characterized in respect to the permeation efficiency of electrolytically produced hydrogen. The effect of discontinuous electrolysis on permeation performance has been discussed as well as methods for Pd-Ag electrode reactivation. The structural changes of PdAg alloy, induced by electrolytic hydrogen adsorption, have been analyzed in details and were correlated with the H/Pd atomic ratio. By performing the electrolysis for well defined time, we managed to control the H/Pd ratio over the whole range of alpha- and beta-phase stability, as defined by phase diagram. The beta-phase formation was accompanied with surface corrugation of Pd-Ag alloy. As we determined, surface corrugation caused the occurrence of ghost peak in XRD spectra of PdAg alloy that coincides with the alpha-phase peak, thus influencing its resolution. Also, the criteria that should be taken into account when analyzing XRD data of H PdAg alloy were established. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Structural modification of PdAg alloy induced by electrolytic hydrogen absorption
VL  - 36
IS  - 13
SP  - 7728
EP  - 7736
DO  - 10.1016/j.ijhydene.2011.03.112
ER  - 
@article{
author = "Jovanović, Zoran M. and De Francesco, M. and Tosti, Silvano and Pozio, Alfonso",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4400",
abstract = "The palladium (79%) silver (21%) alloy has been characterized in respect to the permeation efficiency of electrolytically produced hydrogen. The effect of discontinuous electrolysis on permeation performance has been discussed as well as methods for Pd-Ag electrode reactivation. The structural changes of PdAg alloy, induced by electrolytic hydrogen adsorption, have been analyzed in details and were correlated with the H/Pd atomic ratio. By performing the electrolysis for well defined time, we managed to control the H/Pd ratio over the whole range of alpha- and beta-phase stability, as defined by phase diagram. The beta-phase formation was accompanied with surface corrugation of Pd-Ag alloy. As we determined, surface corrugation caused the occurrence of ghost peak in XRD spectra of PdAg alloy that coincides with the alpha-phase peak, thus influencing its resolution. Also, the criteria that should be taken into account when analyzing XRD data of H PdAg alloy were established. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Structural modification of PdAg alloy induced by electrolytic hydrogen absorption",
volume = "36",
number = "13",
pages = "7728-7736",
doi = "10.1016/j.ijhydene.2011.03.112"
}
Jovanović, Z. M., De Francesco, M., Tosti, S.,& Pozio, A. (2011). Structural modification of PdAg alloy induced by electrolytic hydrogen absorption.
International Journal of Hydrogen Energy, 36(13), 7728-7736.
https://doi.org/10.1016/j.ijhydene.2011.03.112
Jovanović ZM, De Francesco M, Tosti S, Pozio A. Structural modification of PdAg alloy induced by electrolytic hydrogen absorption. International Journal of Hydrogen Energy. 2011;36(13):7728-7736
Jovanović Zoran M., De Francesco M., Tosti Silvano, Pozio Alfonso, "Structural modification of PdAg alloy induced by electrolytic hydrogen absorption" International Journal of Hydrogen Energy, 36, no. 13 (2011):7728-7736,
https://doi.org/10.1016/j.ijhydene.2011.03.112 .
8
7
7

Influence of surface activation on the hydrogen permeation properties of PdAg cathode membrane

Jovanović, Zoran M.; De Francesco, M.; Tosti, Silvano; Pozio, Alfonso

(2011)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - De Francesco, M.
AU  - Tosti, Silvano
AU  - Pozio, Alfonso
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4573
AB  - The influence of surface oxidation and hydrogen upload into the Pd(0.79)Ag(0.21) membrane on hydrogen permeation was examined by measuring the permeation of: 1) gas-phase H(2) sent from the electrode back-side and 2) electrolytic H2 produced on electrolyte side. It was verified that hydrogen upload into PdAg lattice has positive effect i.e. increases hydrogen permeation, while surface oxides formed during and after electrolysis cycles are the main factors acting on decrease of hydrogen permeation. Particularly, silver oxides are identified as permeation-blocking species. Consequently, several treatments were proposed aiming to reduce electrode deactivation; beside wet chemistry treatments applicable after electrolysis, the in situ electrode reactivation by ultrasonic pulses was presented. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Influence of surface activation on the hydrogen permeation properties of PdAg cathode membrane
VL  - 36
IS  - 23
SP  - 15364
EP  - 15371
DO  - 10.1016/j.ijhydene.2011.08.098
ER  - 
@article{
author = "Jovanović, Zoran M. and De Francesco, M. and Tosti, Silvano and Pozio, Alfonso",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4573",
abstract = "The influence of surface oxidation and hydrogen upload into the Pd(0.79)Ag(0.21) membrane on hydrogen permeation was examined by measuring the permeation of: 1) gas-phase H(2) sent from the electrode back-side and 2) electrolytic H2 produced on electrolyte side. It was verified that hydrogen upload into PdAg lattice has positive effect i.e. increases hydrogen permeation, while surface oxides formed during and after electrolysis cycles are the main factors acting on decrease of hydrogen permeation. Particularly, silver oxides are identified as permeation-blocking species. Consequently, several treatments were proposed aiming to reduce electrode deactivation; beside wet chemistry treatments applicable after electrolysis, the in situ electrode reactivation by ultrasonic pulses was presented. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Influence of surface activation on the hydrogen permeation properties of PdAg cathode membrane",
volume = "36",
number = "23",
pages = "15364-15371",
doi = "10.1016/j.ijhydene.2011.08.098"
}
Jovanović, Z. M., De Francesco, M., Tosti, S.,& Pozio, A. (2011). Influence of surface activation on the hydrogen permeation properties of PdAg cathode membrane.
International Journal of Hydrogen Energy, 36(23), 15364-15371.
https://doi.org/10.1016/j.ijhydene.2011.08.098
Jovanović ZM, De Francesco M, Tosti S, Pozio A. Influence of surface activation on the hydrogen permeation properties of PdAg cathode membrane. International Journal of Hydrogen Energy. 2011;36(23):15364-15371
Jovanović Zoran M., De Francesco M., Tosti Silvano, Pozio Alfonso, "Influence of surface activation on the hydrogen permeation properties of PdAg cathode membrane" International Journal of Hydrogen Energy, 36, no. 23 (2011):15364-15371,
https://doi.org/10.1016/j.ijhydene.2011.08.098 .
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Hydrogen storage properties of MgH2 mechanically milled with alpha and beta SiC

Kurko, Sandra V.; Rašković, Željka; Novaković, Nikola; Paskaš Mamula, Bojana; Jovanović, Zoran M.; Baščarević, Zvezdana D.; Grbović-Novaković, Jasmina; Matović, Ljiljana

(2011)

TY  - JOUR
AU  - Kurko, Sandra V.
AU  - Rašković, Željka
AU  - Novaković, Nikola
AU  - Paskaš Mamula, Bojana
AU  - Jovanović, Zoran M.
AU  - Baščarević, Zvezdana D.
AU  - Grbović-Novaković, Jasmina
AU  - Matović, Ljiljana
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4239
AB  - To understand the influence of various crystallographic phases on hydrogen storage properties, ball milling of MgH2 with hexagonal (alpha) and cubic (beta) SiC have been performed. Structural characterization of all samples has been done by X-ray diffraction (XRD) analysis, particle size analysis and scanning electron microscopy (SEM). Investigation of hydrogen desorption properties of prepared nanocomposites has been done using temperature programmed desorption (TPD) technique. Despite the results of structural and morphological characterization of obtained nanocomposites are very similar, TPD spectra show significant differences regarding existence of intermediate temperature peak. In the sample milled with hexagonal SiC this peak originates both from H-2 and H2O, while in the sample milled with cubic phase it only comes from H2O. Both samples exhibit low temperature H-2 peak at 385 K. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Hydrogen storage properties of MgH2 mechanically milled with alpha and beta SiC
VL  - 36
IS  - 1
SP  - 549
EP  - 554
DO  - 10.1016/j.ijhydene.2010.07.022
ER  - 
@article{
author = "Kurko, Sandra V. and Rašković, Željka and Novaković, Nikola and Paskaš Mamula, Bojana and Jovanović, Zoran M. and Baščarević, Zvezdana D. and Grbović-Novaković, Jasmina and Matović, Ljiljana",
year = "2011",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/4239",
abstract = "To understand the influence of various crystallographic phases on hydrogen storage properties, ball milling of MgH2 with hexagonal (alpha) and cubic (beta) SiC have been performed. Structural characterization of all samples has been done by X-ray diffraction (XRD) analysis, particle size analysis and scanning electron microscopy (SEM). Investigation of hydrogen desorption properties of prepared nanocomposites has been done using temperature programmed desorption (TPD) technique. Despite the results of structural and morphological characterization of obtained nanocomposites are very similar, TPD spectra show significant differences regarding existence of intermediate temperature peak. In the sample milled with hexagonal SiC this peak originates both from H-2 and H2O, while in the sample milled with cubic phase it only comes from H2O. Both samples exhibit low temperature H-2 peak at 385 K. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Hydrogen storage properties of MgH2 mechanically milled with alpha and beta SiC",
volume = "36",
number = "1",
pages = "549-554",
doi = "10.1016/j.ijhydene.2010.07.022"
}
Kurko, S. V., Rašković, Ž., Novaković, N., Paskaš Mamula, B., Jovanović, Z. M., Baščarević, Z. D., Grbović-Novaković, J.,& Matović, L. (2011). Hydrogen storage properties of MgH2 mechanically milled with alpha and beta SiC.
International Journal of Hydrogen Energy, 36(1), 549-554.
https://doi.org/10.1016/j.ijhydene.2010.07.022
Kurko SV, Rašković Ž, Novaković N, Paskaš Mamula B, Jovanović ZM, Baščarević ZD, Grbović-Novaković J, Matović L. Hydrogen storage properties of MgH2 mechanically milled with alpha and beta SiC. International Journal of Hydrogen Energy. 2011;36(1):549-554
Kurko Sandra V., Rašković Željka, Novaković Nikola, Paskaš Mamula Bojana, Jovanović Zoran M., Baščarević Zvezdana D., Grbović-Novaković Jasmina, Matović Ljiljana, "Hydrogen storage properties of MgH2 mechanically milled with alpha and beta SiC" International Journal of Hydrogen Energy, 36, no. 1 (2011):549-554,
https://doi.org/10.1016/j.ijhydene.2010.07.022 .
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