Jovanović, Zoran M.

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Authority KeyName Variants
orcid::0000-0003-1727-4852
  • Jovanović, Zoran M. (38)
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 Bilateralni Projekat Srbija-Slovenija 451-03-39/2016-09/50
F.R.S.-FNRS Belgium, M-ERA.NET [SIOX] ICTP Programme for Training and Research in Italian Laboratories, Trieste, Italy
ICTP, Trieste, Italy Physical processes in the synthesis of advanced nanostructured materials
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 Magnetic and radionuclide labeled nanostructured materials for medical applications
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. Struktura, termodinamičke i elektrohemijske osobine materijala za konverziju energije i nove tehnologije
Ministry of Education, Science and Sport of the Republic of Slovenia Ministry of Science and Technological Development of Serbia [151005B]
Ministry of Science and Technological Development of the Republic Serbia [151005B, 142002] Pazy Foundation
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]

Author's Bibliography

Epitaxial ferroelectric oxides on silicon with perspectives for future device applications

Spreitzer, Matjaž; Klement, Dejan; Parkelj Potočnik, Tjaša; Trstenjak, Urška; Jovanović, Zoran M.; Nguyen, Minh Duc; Yuan, Huiyu; Ten Elshof, Johan Evert; Houwman, Evert; Koster, Gertjan; Rijnders, Guus; Fompeyrine, Jean; Kornblum, Lior; Fenning, David P.; Liang, Yunting; Tong, Wen-Yi; Ghosez, Philippe

(2021)

TY  - JOUR
AU  - Spreitzer, Matjaž
AU  - Klement, Dejan
AU  - Parkelj Potočnik, Tjaša
AU  - Trstenjak, Urška
AU  - Jovanović, Zoran M.
AU  - Nguyen, Minh Duc
AU  - Yuan, Huiyu
AU  - Ten Elshof, Johan Evert
AU  - Houwman, Evert
AU  - Koster, Gertjan
AU  - Rijnders, Guus
AU  - Fompeyrine, Jean
AU  - Kornblum, Lior
AU  - Fenning, David P.
AU  - Liang, Yunting
AU  - Tong, Wen-Yi
AU  - Ghosez, Philippe
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9627
AB  - Functional oxides on silicon have been the subject of in-depth research for more than 20 years. Much of this research has been focused on the quality of the integration of materials due to their intrinsic thermodynamic incompatibility, which has hindered the flourishing of the field of research. Nevertheless, growth of epitaxial transition metal oxides on silicon with a sharp interface has been achieved by elaborated kinetically controlled sequential deposition while the crystalline quality of different functional oxides has been considerably improved. In this Research Update, we focus on three applications in which epitaxial ferroelectric oxides on silicon are at the forefront, and in each of these applications, other aspects of the integration of materials play an important role. These are the fields of piezoelectric microelectromechanical system devices, electro-optical components, and catalysis. The overview is supported by a brief analysis of the synthesis processes that enable epitaxial growth of oxides on silicon. This Research Update concludes with a theoretical description of the interfaces and the possibility of manipulating their electronic structure to achieve the desired coupling between (ferroelectric) oxides and semiconductors, which opens up a remarkable perspective for many advanced applications. © 2021 Author(s).
T2  - APL Materials
T1  - Epitaxial ferroelectric oxides on silicon with perspectives for future device applications
VL  - 9
IS  - 4
SP  - 040701
DO  - 10.1063/5.0039161
ER  - 
@article{
author = "Spreitzer, Matjaž and Klement, Dejan and Parkelj Potočnik, Tjaša and Trstenjak, Urška and Jovanović, Zoran M. and Nguyen, Minh Duc and Yuan, Huiyu and Ten Elshof, Johan Evert and Houwman, Evert and Koster, Gertjan and Rijnders, Guus and Fompeyrine, Jean and Kornblum, Lior and Fenning, David P. and Liang, Yunting and Tong, Wen-Yi and Ghosez, Philippe",
year = "2021",
abstract = "Functional oxides on silicon have been the subject of in-depth research for more than 20 years. Much of this research has been focused on the quality of the integration of materials due to their intrinsic thermodynamic incompatibility, which has hindered the flourishing of the field of research. Nevertheless, growth of epitaxial transition metal oxides on silicon with a sharp interface has been achieved by elaborated kinetically controlled sequential deposition while the crystalline quality of different functional oxides has been considerably improved. In this Research Update, we focus on three applications in which epitaxial ferroelectric oxides on silicon are at the forefront, and in each of these applications, other aspects of the integration of materials play an important role. These are the fields of piezoelectric microelectromechanical system devices, electro-optical components, and catalysis. The overview is supported by a brief analysis of the synthesis processes that enable epitaxial growth of oxides on silicon. This Research Update concludes with a theoretical description of the interfaces and the possibility of manipulating their electronic structure to achieve the desired coupling between (ferroelectric) oxides and semiconductors, which opens up a remarkable perspective for many advanced applications. © 2021 Author(s).",
journal = "APL Materials",
title = "Epitaxial ferroelectric oxides on silicon with perspectives for future device applications",
volume = "9",
number = "4",
pages = "040701",
doi = "10.1063/5.0039161"
}
Spreitzer, M., Klement, D., Parkelj Potočnik, T., Trstenjak, U., Jovanović, Z. M., Nguyen, M. D., Yuan, H., Ten Elshof, J. E., Houwman, E., Koster, G., Rijnders, G., Fompeyrine, J., Kornblum, L., Fenning, D. P., Liang, Y., Tong, W.,& Ghosez, P.. (2021). Epitaxial ferroelectric oxides on silicon with perspectives for future device applications. in APL Materials, 9(4), 040701.
https://doi.org/10.1063/5.0039161
Spreitzer M, Klement D, Parkelj Potočnik T, Trstenjak U, Jovanović ZM, Nguyen MD, Yuan H, Ten Elshof JE, Houwman E, Koster G, Rijnders G, Fompeyrine J, Kornblum L, Fenning DP, Liang Y, Tong W, Ghosez P. Epitaxial ferroelectric oxides on silicon with perspectives for future device applications. in APL Materials. 2021;9(4):040701.
doi:10.1063/5.0039161 .
Spreitzer, Matjaž, Klement, Dejan, Parkelj Potočnik, Tjaša, Trstenjak, Urška, Jovanović, Zoran M., Nguyen, Minh Duc, Yuan, Huiyu, Ten Elshof, Johan Evert, Houwman, Evert, Koster, Gertjan, Rijnders, Guus, Fompeyrine, Jean, Kornblum, Lior, Fenning, David P., Liang, Yunting, Tong, Wen-Yi, Ghosez, Philippe, "Epitaxial ferroelectric oxides on silicon with perspectives for future device applications" in APL Materials, 9, no. 4 (2021):040701,
https://doi.org/10.1063/5.0039161 . .
4
4
4

Structural and electrochemical properties of carbon ion beam irradiated 12-tungstophosphoric acid

Mravik, Željko; Bajuk-Bogdanović, Danica V.; Mraković, Ana Đ.; Vukosavljević, Ljubiša; Trajić, Ivan; Kovač, Janez; Peruško, Davor; Gavrilov, Nemanja; Jovanović, Zoran M.

(2021)

TY  - JOUR
AU  - Mravik, Željko
AU  - Bajuk-Bogdanović, Danica V.
AU  - Mraković, Ana Đ.
AU  - Vukosavljević, Ljubiša
AU  - Trajić, Ivan
AU  - Kovač, Janez
AU  - Peruško, Davor
AU  - Gavrilov, Nemanja
AU  - Jovanović, Zoran M.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9150
AB  - In recent years polyoxometalates (POMs) have attracted significant research interest due to versatile properties. These properties are determined by the size, structure and elemental composition of POMs and hence play an important role in their application. In the present study, the ion beam irradiation (10 keV C+ ions, 5 × 1014–2.5 × 1015 ions/cm2) has been utilized for modification of physicochemical properties of 120 nm-thick layer of 12-tungstophosphoric acid (WPA). Scanning electron microscopy analysis of irradiated films showed change of morphology i.e. an increase of WPA grain size with irradiation and coalescence of grains at the highest fluence. This was accompanied by structural changes. Attenuated total reflectance Fourier transform infrared analysis revealed that vibration bands of Keggin anion became less pronounced as fluence increased, while Raman spectra appeared as strongly modified. The effect of irradiation with 1.25 × 1015 ions/cm2 on the structure of WPA was similar to the effect of thermal treatment at 600 °C. Irradiation of WPA led to decrease of the band gap (from 4.07 to 3.92 eV), which was correlated to transformation Keggin anions into a network of WO6 octahedra and PO4 tetrahedra. This is in line with increased number of W=Od bonds observed by UV–Visible diffuse reflectance spectroscopy. Beside transformation to bronzes a reduction of WPA was observed by X-ray Photoelectron Spectroscopy (shift to lower binding energy) and Raman methods, whereas the Raman spectra of irradiated samples were similar to heteropoly blue. The electrochemical properties of irradiated WPA were also assessed. Cyclic voltammetry measurements showed that at up to 1.25 × 1015 ions/cm2 lithiation capacity of WPA increases and activity for hydrogen evolution reaction (HER) improves. The highest fluence caused interconnection of WO6 octahedra, closing of lithiation pathways and decrease in the number of active sites for HER. Our results provide a novel insight into the effects of ion beam irradiation on WPA and demonstrate high potential for tuning of physicochemical properties of POMs that are relevant in wide range of applications. © 2021 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - Structural and electrochemical properties of carbon ion beam irradiated 12-tungstophosphoric acid
VL  - 183
SP  - 109422
DO  - 10.1016/j.radphyschem.2021.109422
ER  - 
@article{
author = "Mravik, Željko and Bajuk-Bogdanović, Danica V. and Mraković, Ana Đ. and Vukosavljević, Ljubiša and Trajić, Ivan and Kovač, Janez and Peruško, Davor and Gavrilov, Nemanja and Jovanović, Zoran M.",
year = "2021",
abstract = "In recent years polyoxometalates (POMs) have attracted significant research interest due to versatile properties. These properties are determined by the size, structure and elemental composition of POMs and hence play an important role in their application. In the present study, the ion beam irradiation (10 keV C+ ions, 5 × 1014–2.5 × 1015 ions/cm2) has been utilized for modification of physicochemical properties of 120 nm-thick layer of 12-tungstophosphoric acid (WPA). Scanning electron microscopy analysis of irradiated films showed change of morphology i.e. an increase of WPA grain size with irradiation and coalescence of grains at the highest fluence. This was accompanied by structural changes. Attenuated total reflectance Fourier transform infrared analysis revealed that vibration bands of Keggin anion became less pronounced as fluence increased, while Raman spectra appeared as strongly modified. The effect of irradiation with 1.25 × 1015 ions/cm2 on the structure of WPA was similar to the effect of thermal treatment at 600 °C. Irradiation of WPA led to decrease of the band gap (from 4.07 to 3.92 eV), which was correlated to transformation Keggin anions into a network of WO6 octahedra and PO4 tetrahedra. This is in line with increased number of W=Od bonds observed by UV–Visible diffuse reflectance spectroscopy. Beside transformation to bronzes a reduction of WPA was observed by X-ray Photoelectron Spectroscopy (shift to lower binding energy) and Raman methods, whereas the Raman spectra of irradiated samples were similar to heteropoly blue. The electrochemical properties of irradiated WPA were also assessed. Cyclic voltammetry measurements showed that at up to 1.25 × 1015 ions/cm2 lithiation capacity of WPA increases and activity for hydrogen evolution reaction (HER) improves. The highest fluence caused interconnection of WO6 octahedra, closing of lithiation pathways and decrease in the number of active sites for HER. Our results provide a novel insight into the effects of ion beam irradiation on WPA and demonstrate high potential for tuning of physicochemical properties of POMs that are relevant in wide range of applications. © 2021 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "Structural and electrochemical properties of carbon ion beam irradiated 12-tungstophosphoric acid",
volume = "183",
pages = "109422",
doi = "10.1016/j.radphyschem.2021.109422"
}
Mravik, Ž., Bajuk-Bogdanović, D. V., Mraković, A. Đ., Vukosavljević, L., Trajić, I., Kovač, J., Peruško, D., Gavrilov, N.,& Jovanović, Z. M.. (2021). Structural and electrochemical properties of carbon ion beam irradiated 12-tungstophosphoric acid. in Radiation Physics and Chemistry, 183, 109422.
https://doi.org/10.1016/j.radphyschem.2021.109422
Mravik Ž, Bajuk-Bogdanović DV, Mraković AĐ, Vukosavljević L, Trajić I, Kovač J, Peruško D, Gavrilov N, Jovanović ZM. Structural and electrochemical properties of carbon ion beam irradiated 12-tungstophosphoric acid. in Radiation Physics and Chemistry. 2021;183:109422.
doi:10.1016/j.radphyschem.2021.109422 .
Mravik, Željko, Bajuk-Bogdanović, Danica V., Mraković, Ana Đ., Vukosavljević, Ljubiša, Trajić, Ivan, Kovač, Janez, Peruško, Davor, Gavrilov, Nemanja, Jovanović, Zoran M., "Structural and electrochemical properties of carbon ion beam irradiated 12-tungstophosphoric acid" in Radiation Physics and Chemistry, 183 (2021):109422,
https://doi.org/10.1016/j.radphyschem.2021.109422 . .

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",
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. in 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. in Carbon. 2020;156:166-178.
doi:10.1016/j.carbon.2019.09.072 .
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" in Carbon, 156 (2020):166-178,
https://doi.org/10.1016/j.carbon.2019.09.072 . .
5
3
5

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",
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. in 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. in Journal of Physics: Conference Series. 2020;1560(1):012040.
doi:10.1088/1742-6596/1560/1/012040 .
Kamanina, Natalie Vladimirovna, Jovanović, Zoran M., Belyaev, Victor V., "Liquid crystal aligning using different approaches" in Journal of Physics: Conference Series, 1560, no. 1 (2020):012040,
https://doi.org/10.1088/1742-6596/1560/1/012040 . .
1

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",
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. in 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. in Journal of Environmental Sciences. 2019;81:136-147.
doi:10.1016/j.jes.2019.01.018 .
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" in Journal of Environmental Sciences, 81 (2019):136-147,
https://doi.org/10.1016/j.jes.2019.01.018 . .
11
9
10

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",
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?. in 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?. in Journal of Solid State Electrochemistry. 2019;23(9):2747-2758.
doi:10.1007/s10008-019-04369-4 .
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?" in 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",
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. in 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. in Materials. 2019;12(19):3160.
doi:10.3390/ma12193160 .
Pozio, Alfonso, Jovanović, Zoran M., Tosti, Silvano, "Hydrogen Absorption in Pd–Ag Systems: A TPD and Electrical Resistivity Study" in 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",
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. in 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. in Archives of Biological Sciences. 2018;70(4):675-680.
doi:10.2298/ABS180413029M .
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" in Archives of Biological Sciences, 70, no. 4 (2018):675-680,
https://doi.org/10.2298/ABS180413029M . .
2
1
1

Analiza površinskih funkcionalnih grupa termički redukovanog grafen oksida metodom temperaturski programirane desorpcije

Mravik, Željko; Jovanović, Zoran M.

(2018)

TY  - JOUR
AU  - Mravik, Željko
AU  - Jovanović, Zoran M.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9134
AB  - U ovom radu ispitan je uticaj termičke redukcije na karakteristike grafen oksida sintetisanog modifikovanim Hamerovim postupkom, sa posebnim osvrtom na promene njegovih površinskih funkcionalnih grupa. Početni grafen oksid karakterisan je metodama rentgeno-strukturne analize, spektrofotometrije vidljivog i ultraljubičastog zračenja, skenirajuće i transmisione elektronske mikrosko-pije. Mikroskopija atomskih sila upotrebljena je za merenje debljine slojeva grafen oksida pre i posle termičke redukcije. Promene površinskih funkcionalnih grupa termički redukovanog grafen oksida praćene su metodom temperaturski programirane desorpcije (TPD) pri čemu je analiza uzoraka pokazala desorpciju površinskih funkcionalnih grupa čiji se opseg stabilnosti nalazi ispod temperature tretmana. Termičkom redukcijom na 300°C dolazi do dekompozicije epoksi, alkoksi i karboksilnih grupa kao i karbonilnih grupa sklonih ka transformaciji do α-supstituisanih aldehida i ketona. Takođe, termičkom redukcijom na 600 °C sa površine se desorbuju i karboksilni anhidridi. TPD krive uzoraka snimanih nakon određenog vremenskog perioda po redukciji, pokazale su delimično vraćanje površinskih funkcionalnih grupa sa vremenom.
T2  - Tehnika
T1  - Analiza površinskih funkcionalnih grupa termički redukovanog grafen oksida metodom temperaturski programirane desorpcije
VL  - 73
IS  - 2
SP  - 186
EP  - 191
DO  - 10.5937/tehnika1802186M
ER  - 
@article{
author = "Mravik, Željko and Jovanović, Zoran M.",
year = "2018",
abstract = "U ovom radu ispitan je uticaj termičke redukcije na karakteristike grafen oksida sintetisanog modifikovanim Hamerovim postupkom, sa posebnim osvrtom na promene njegovih površinskih funkcionalnih grupa. Početni grafen oksid karakterisan je metodama rentgeno-strukturne analize, spektrofotometrije vidljivog i ultraljubičastog zračenja, skenirajuće i transmisione elektronske mikrosko-pije. Mikroskopija atomskih sila upotrebljena je za merenje debljine slojeva grafen oksida pre i posle termičke redukcije. Promene površinskih funkcionalnih grupa termički redukovanog grafen oksida praćene su metodom temperaturski programirane desorpcije (TPD) pri čemu je analiza uzoraka pokazala desorpciju površinskih funkcionalnih grupa čiji se opseg stabilnosti nalazi ispod temperature tretmana. Termičkom redukcijom na 300°C dolazi do dekompozicije epoksi, alkoksi i karboksilnih grupa kao i karbonilnih grupa sklonih ka transformaciji do α-supstituisanih aldehida i ketona. Takođe, termičkom redukcijom na 600 °C sa površine se desorbuju i karboksilni anhidridi. TPD krive uzoraka snimanih nakon određenog vremenskog perioda po redukciji, pokazale su delimično vraćanje površinskih funkcionalnih grupa sa vremenom.",
journal = "Tehnika",
title = "Analiza površinskih funkcionalnih grupa termički redukovanog grafen oksida metodom temperaturski programirane desorpcije",
volume = "73",
number = "2",
pages = "186-191",
doi = "10.5937/tehnika1802186M"
}
Mravik, Ž.,& Jovanović, Z. M.. (2018). Analiza površinskih funkcionalnih grupa termički redukovanog grafen oksida metodom temperaturski programirane desorpcije. in Tehnika, 73(2), 186-191.
https://doi.org/10.5937/tehnika1802186M
Mravik Ž, Jovanović ZM. Analiza površinskih funkcionalnih grupa termički redukovanog grafen oksida metodom temperaturski programirane desorpcije. in Tehnika. 2018;73(2):186-191.
doi:10.5937/tehnika1802186M .
Mravik, Željko, Jovanović, Zoran M., "Analiza površinskih funkcionalnih grupa termički redukovanog grafen oksida metodom temperaturski programirane desorpcije" in Tehnika, 73, no. 2 (2018):186-191,
https://doi.org/10.5937/tehnika1802186M . .

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",
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. in 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. in Electrochimica Acta. 2017;258:1228-1243.
doi:10.1016/j.electacta.2017.11.178 .
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" in Electrochimica Acta, 258 (2017):1228-1243,
https://doi.org/10.1016/j.electacta.2017.11.178 . .
19
18
17

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",
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. in 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. in 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" in 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",
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). Прорачун специфичне апсорбоване фракције у појединим органима човечјег тела приликом примене радиофармацеутика Xe-133. in 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. Прорачун специфичне апсорбоване фракције у појединим органима човечјег тела приликом примене радиофармацеутика Xe-133. in 29. симпозијум ДЗЗСЦГ : зборник радова. 2017;:328-332..
Jovanović, Zoran M., Krstić, Dragana Ž., Nikezić, Dragoslav, "Прорачун специфичне апсорбоване фракције у појединим органима човечјег тела приликом примене радиофармацеутика Xe-133" in 29. симпозијум ДЗЗСЦГ : зборник радова (2017):328-332.

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",
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. in 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. in Electrochemistry Communications. 2017;83:36-40.
doi:10.1016/j.elecom.2017.08.017 .
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" in Electrochemistry Communications, 83 (2017):36-40,
https://doi.org/10.1016/j.elecom.2017.08.017 . .
9
9
8

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",
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. in 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. in RSC Advances. 2016;6(85):82150-82156.
doi:10.1039/c6ra16311d .
Jovanović, Zoran M., Spreitzer, Matjaž, Gabor, U., Suvorov, D., "Control of SrO buffer-layer formation on Si(001) using the pulsed-laser deposition technique" in 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",
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. in 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. in 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" in 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",
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. in 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. in ACS Applied Materials and Interfaces. 2014;6(20):18205-18214.
doi:10.1021/am505202p .
Jovanović, Zoran M., Spreitzer, Matjaž, Kovač, Janez, Klement, Dejan, Suvorov, Danilo, "Silicon Surface Deoxidation Using Strontium Oxide Deposited with the Pulsed Laser Deposition Technique" in ACS Applied Materials and Interfaces, 6, no. 20 (2014):18205-18214,
https://doi.org/10.1021/am505202p . .
11
11
11

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",
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. in 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. in Materials Chemistry and Physics. 2013;141(1):27-34.
doi:10.1016/j.matchemphys.2013.03.050 .
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" in Materials Chemistry and Physics, 141, no. 1 (2013):27-34,
https://doi.org/10.1016/j.matchemphys.2013.03.050 . .
7
8
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",
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. in 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. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2013;316:17-21.
doi:10.1016/j.nimb.2013.08.030 .
Kalijadis, Ana, Jovanović, Zoran M., Cvijović-Alagić, Ivana, Laušević, Zoran, "Boron ion irradiation induced structural and surface modification of glassy carbon" in 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",
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. in 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. in Central European Journal of Chemistry. 2012;10(4):1271-1279.
doi:10.2478/s11532-012-0042-1 .
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" in Central European Journal of Chemistry, 10, no. 4 (2012):1271-1279,
https://doi.org/10.2478/s11532-012-0042-1 . .
11
9
11

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",
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. in 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. in Ceramics International. 2012;38(2):1181-1186.
doi:10.1016/j.ceramint.2011.08.047 .
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" in Ceramics International, 38, no. 2 (2012):1181-1186,
https://doi.org/10.1016/j.ceramint.2011.08.047 . .
32
35
37

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",
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. in 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. in International Journal of Hydrogen Energy. 2012;37(9):7925-7933.
doi:10.1016/j.ijhydene.2012.01.108 .
Pozio, Alfonso, Jovanović, Zoran M., Lo Presti, R., De Francesco, M., Tosti, Silvano, "Pd-Ag hydrogen content and electrical resistivity: Temperature and pressure effect" in International Journal of Hydrogen Energy, 37, no. 9 (2012):7925-7933,
https://doi.org/10.1016/j.ijhydene.2012.01.108 . .
11
10
11

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",
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. in 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. in International Journal of Hydrogen Energy. 2011;36(1):549-554.
doi:10.1016/j.ijhydene.2010.07.022 .
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" in International Journal of Hydrogen Energy, 36, no. 1 (2011):549-554,
https://doi.org/10.1016/j.ijhydene.2010.07.022 . .
26
26
27

Changes of hydrogen storage properties of MgH2 induced by boron ion irradiation

Kurko, Sandra V.; Matović, Ljiljana; Novaković, Nikola; Matović, Branko; Jovanović, Zoran M.; Paskaš Mamula, Bojana; Grbović-Novaković, Jasmina

(2011)

TY  - JOUR
AU  - Kurko, Sandra V.
AU  - Matović, Ljiljana
AU  - Novaković, Nikola
AU  - Matović, Branko
AU  - Jovanović, Zoran M.
AU  - Paskaš Mamula, Bojana
AU  - Grbović-Novaković, Jasmina
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4240
AB  - MgH2 powder samples have been irradiated with 45 key B3+ ions with different ion fluencies ranging from 10(12) to 10(16) ions/cm(2). Irradiation effects have been estimated by SRIM calculations. To characterize induced modifications and its influence on the hydrogen desorption behavior of MgH2, X-ray diffraction (XRD) analysis, particle size analysis and temperature programmed desorption (TPD) have been used. Changes of TPD spectra with irradiation conditions suggest that there are several mechanisms involved in desorption process which depend on defect concentration and their interaction and ordering. It has been demonstrated that the changes in near-surface area play the crucial role in hydrogen desorption kinetics. The results also confirm that there is possibility to control the thermodynamic parameters by controlling vacancies concentration in the systems. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Changes of hydrogen storage properties of MgH2 induced by boron ion irradiation
VL  - 36
IS  - 1
SP  - 1184
EP  - 1189
DO  - 10.1016/j.ijhydene.2010.06.091
ER  - 
@article{
author = "Kurko, Sandra V. and Matović, Ljiljana and Novaković, Nikola and Matović, Branko and Jovanović, Zoran M. and Paskaš Mamula, Bojana and Grbović-Novaković, Jasmina",
year = "2011",
abstract = "MgH2 powder samples have been irradiated with 45 key B3+ ions with different ion fluencies ranging from 10(12) to 10(16) ions/cm(2). Irradiation effects have been estimated by SRIM calculations. To characterize induced modifications and its influence on the hydrogen desorption behavior of MgH2, X-ray diffraction (XRD) analysis, particle size analysis and temperature programmed desorption (TPD) have been used. Changes of TPD spectra with irradiation conditions suggest that there are several mechanisms involved in desorption process which depend on defect concentration and their interaction and ordering. It has been demonstrated that the changes in near-surface area play the crucial role in hydrogen desorption kinetics. The results also confirm that there is possibility to control the thermodynamic parameters by controlling vacancies concentration in the systems. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Changes of hydrogen storage properties of MgH2 induced by boron ion irradiation",
volume = "36",
number = "1",
pages = "1184-1189",
doi = "10.1016/j.ijhydene.2010.06.091"
}
Kurko, S. V., Matović, L., Novaković, N., Matović, B., Jovanović, Z. M., Paskaš Mamula, B.,& Grbović-Novaković, J.. (2011). Changes of hydrogen storage properties of MgH2 induced by boron ion irradiation. in International Journal of Hydrogen Energy, 36(1), 1184-1189.
https://doi.org/10.1016/j.ijhydene.2010.06.091
Kurko SV, Matović L, Novaković N, Matović B, Jovanović ZM, Paskaš Mamula B, Grbović-Novaković J. Changes of hydrogen storage properties of MgH2 induced by boron ion irradiation. in International Journal of Hydrogen Energy. 2011;36(1):1184-1189.
doi:10.1016/j.ijhydene.2010.06.091 .
Kurko, Sandra V., Matović, Ljiljana, Novaković, Nikola, Matović, Branko, Jovanović, Zoran M., Paskaš Mamula, Bojana, Grbović-Novaković, Jasmina, "Changes of hydrogen storage properties of MgH2 induced by boron ion irradiation" in International Journal of Hydrogen Energy, 36, no. 1 (2011):1184-1189,
https://doi.org/10.1016/j.ijhydene.2010.06.091 . .
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27

The evolution of hydrogen from proton irradiated glassy carbon

Jovanović, Zoran M.; Kalijadis, Ana; Lausevic, Mila; Laušević, Zoran

(2011)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Kalijadis, Ana
AU  - Lausevic, Mila
AU  - Laušević, Zoran
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4528
AB  - Glassy carbon was irradiated with 15 key H(+) ion beam. It was observed that the implanted hydrogen is unstable in material and evolves as H, H(2) and H(2)O. Post-irradiation evolution of H, H(2) and H(2)O from proton irradiated glassy carbon was monitored by temperature programmed desorption (TPD) in the period of 30 days. In between irradiation and TPD measurements the irradiated samples were stored in air. The evolution of the molecular hydrogen, although the protons are implanted deeply below the surface of the disordered glassy carbon, proceeds over the same mechanism as in the case of low-energy H-atoms chemisorbed on the very surface of an ideal graphite structure. (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  - The evolution of hydrogen from proton irradiated glassy carbon
VL  - 269
IS  - 21
SP  - 2578
EP  - 2583
DO  - 10.1016/j.nimb.2011.07.014
ER  - 
@article{
author = "Jovanović, Zoran M. and Kalijadis, Ana and Lausevic, Mila and Laušević, Zoran",
year = "2011",
abstract = "Glassy carbon was irradiated with 15 key H(+) ion beam. It was observed that the implanted hydrogen is unstable in material and evolves as H, H(2) and H(2)O. Post-irradiation evolution of H, H(2) and H(2)O from proton irradiated glassy carbon was monitored by temperature programmed desorption (TPD) in the period of 30 days. In between irradiation and TPD measurements the irradiated samples were stored in air. The evolution of the molecular hydrogen, although the protons are implanted deeply below the surface of the disordered glassy carbon, proceeds over the same mechanism as in the case of low-energy H-atoms chemisorbed on the very surface of an ideal graphite structure. (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 = "The evolution of hydrogen from proton irradiated glassy carbon",
volume = "269",
number = "21",
pages = "2578-2583",
doi = "10.1016/j.nimb.2011.07.014"
}
Jovanović, Z. M., Kalijadis, A., Lausevic, M.,& Laušević, Z.. (2011). The evolution of hydrogen from proton irradiated glassy carbon. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269(21), 2578-2583.
https://doi.org/10.1016/j.nimb.2011.07.014
Jovanović ZM, Kalijadis A, Lausevic M, Laušević Z. The evolution of hydrogen from proton irradiated glassy carbon. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2011;269(21):2578-2583.
doi:10.1016/j.nimb.2011.07.014 .
Jovanović, Zoran M., Kalijadis, Ana, Lausevic, Mila, Laušević, Zoran, "The evolution of hydrogen from proton irradiated glassy carbon" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 269, no. 21 (2011):2578-2583,
https://doi.org/10.1016/j.nimb.2011.07.014 . .
2
2
2

Modification of glassy carbon properties under low energy proton irradiation

Jovanović, Zoran M.; Kalijadis, Ana; Vasiljević-Radović, Dana; Erich, Marko; Lausevic, Mila; Mentus, Slavko V.; Laušević, Zoran

(2011)

TY  - JOUR
AU  - Jovanović, Zoran M.
AU  - Kalijadis, Ana
AU  - Vasiljević-Radović, Dana
AU  - Erich, Marko
AU  - Lausevic, Mila
AU  - Mentus, Slavko V.
AU  - Laušević, Zoran
PY  - 2011
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4455
AB  - Glassy carbon plates were irradiated with 15 key H(+) ion-beam in the fluence range of 1 x 10(16)-3 x 10(18) ion cm(-2). The influence of ion irradiation on surface morphology and topology was examined by scanning electron and atomic force microscopy. Structural changes were monitored by Raman spectrometry, while changes of wettability and the content of surface oxygen complexes were examined by contact angle measurements and temperature programmed desorption. Elastic recoil detection analysis was applied for determination of hydrogen concentration profiles in irradiated samples. Cyclic voltammetry was used for the assessment of the electrochemical properties of modified glassy carbon electrodes. It was concluded that there is critical fluence range (2 x 10(17)-5 x 10(17) ion cm(-2)) inside of which significant changes of glassy carbon properties occur. (C) 2011 Elsevier Ltd. All rights reserved.
T2  - Carbon
T1  - Modification of glassy carbon properties under low energy proton irradiation
VL  - 49
IS  - 12
SP  - 3737
EP  - 3746
DO  - 10.1016/j.carbon.2011.05.006
ER  - 
@article{
author = "Jovanović, Zoran M. and Kalijadis, Ana and Vasiljević-Radović, Dana and Erich, Marko and Lausevic, Mila and Mentus, Slavko V. and Laušević, Zoran",
year = "2011",
abstract = "Glassy carbon plates were irradiated with 15 key H(+) ion-beam in the fluence range of 1 x 10(16)-3 x 10(18) ion cm(-2). The influence of ion irradiation on surface morphology and topology was examined by scanning electron and atomic force microscopy. Structural changes were monitored by Raman spectrometry, while changes of wettability and the content of surface oxygen complexes were examined by contact angle measurements and temperature programmed desorption. Elastic recoil detection analysis was applied for determination of hydrogen concentration profiles in irradiated samples. Cyclic voltammetry was used for the assessment of the electrochemical properties of modified glassy carbon electrodes. It was concluded that there is critical fluence range (2 x 10(17)-5 x 10(17) ion cm(-2)) inside of which significant changes of glassy carbon properties occur. (C) 2011 Elsevier Ltd. All rights reserved.",
journal = "Carbon",
title = "Modification of glassy carbon properties under low energy proton irradiation",
volume = "49",
number = "12",
pages = "3737-3746",
doi = "10.1016/j.carbon.2011.05.006"
}
Jovanović, Z. M., Kalijadis, A., Vasiljević-Radović, D., Erich, M., Lausevic, M., Mentus, S. V.,& Laušević, Z.. (2011). Modification of glassy carbon properties under low energy proton irradiation. in Carbon, 49(12), 3737-3746.
https://doi.org/10.1016/j.carbon.2011.05.006
Jovanović ZM, Kalijadis A, Vasiljević-Radović D, Erich M, Lausevic M, Mentus SV, Laušević Z. Modification of glassy carbon properties under low energy proton irradiation. in Carbon. 2011;49(12):3737-3746.
doi:10.1016/j.carbon.2011.05.006 .
Jovanović, Zoran M., Kalijadis, Ana, Vasiljević-Radović, Dana, Erich, Marko, Lausevic, Mila, Mentus, Slavko V., Laušević, Zoran, "Modification of glassy carbon properties under low energy proton irradiation" in Carbon, 49, no. 12 (2011):3737-3746,
https://doi.org/10.1016/j.carbon.2011.05.006 . .
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