TY  - CONF
AU  - Cherkezova-Zheleva, Z.
AU  - Paneva, Daniela
AU  - Petkova, V.
AU  - Krstić, Jugoslav
AU  - Stefanov, G.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3360
AB  - In this paper, the physico chemical properties of Fe–based amorphous alloys containing critical raw materials (CRM) were investigated in order to reuse them for photocatalytic degradation of azo dyes. The iron-based metallic glasses were prepared by melt spinning method. Their chemical composition is: Fe67B14Co18Si, Fe78B15Mo2Si5 and Fe40B16Ni40Mo4. Characterization of the ribbons was done using combination of analytical methods. Studied materials were heated in inert atmosphere and in air at temperature of 1000 °C. Crystallization processes of investigated Fe–based amorphous alloys depending on their chemical composition were registered using thermal analysis. The changes of material phase composition and crystallinity degree were studied using powder X-ray diffraction (XRD) and Mössbauer spectroscopy (MS). The thermal treatment in inert atmosphere above the crystallization temperature of studied amorphous alloys result in rearrangement of iron neighbours and formation of multiphase crystalline structure, which strongly depends on the additive elements (Co, Ni, Mo). Heating of ribbons in air affects significantly the kinetic of crystallization and registered products in comparison to annealing in inert (argon) atmosphere. Investigation of thermal stability of ribbon metallic glasses and formation of different intermediate and product compounds is very important for practical application of damaged amorphous alloys, their further reuse and recycling.
PB  - Springer Science and Business Media LLC
C3  - Hyperfine Interactions
T1  - Reuse of Fe-based amorphous alloys containing CRM: study on their temperature behavior
VL  - 241
IS  - 1
SP  - 14
DO  - 10.1007/s10751-019-1684-6
ER  - 

@conference{
author = "Cherkezova-Zheleva, Z. and Paneva, Daniela and Petkova, V. and Krstić, Jugoslav and Stefanov, G.",
year = "2020",
abstract = "In this paper, the physico chemical properties of Fe–based amorphous alloys containing critical raw materials (CRM) were investigated in order to reuse them for photocatalytic degradation of azo dyes. The iron-based metallic glasses were prepared by melt spinning method. Their chemical composition is: Fe67B14Co18Si, Fe78B15Mo2Si5 and Fe40B16Ni40Mo4. Characterization of the ribbons was done using combination of analytical methods. Studied materials were heated in inert atmosphere and in air at temperature of 1000 °C. Crystallization processes of investigated Fe–based amorphous alloys depending on their chemical composition were registered using thermal analysis. The changes of material phase composition and crystallinity degree were studied using powder X-ray diffraction (XRD) and Mössbauer spectroscopy (MS). The thermal treatment in inert atmosphere above the crystallization temperature of studied amorphous alloys result in rearrangement of iron neighbours and formation of multiphase crystalline structure, which strongly depends on the additive elements (Co, Ni, Mo). Heating of ribbons in air affects significantly the kinetic of crystallization and registered products in comparison to annealing in inert (argon) atmosphere. Investigation of thermal stability of ribbon metallic glasses and formation of different intermediate and product compounds is very important for practical application of damaged amorphous alloys, their further reuse and recycling.",
publisher = "Springer Science and Business Media LLC",
journal = "Hyperfine Interactions",
title = "Reuse of Fe-based amorphous alloys containing CRM: study on their temperature behavior",
volume = "241",
number = "1",
pages = "14",
doi = "10.1007/s10751-019-1684-6"
}

Cherkezova-Zheleva, Z., Paneva, D., Petkova, V., Krstić, J.,& Stefanov, G.. (2020). Reuse of Fe-based amorphous alloys containing CRM: study on their temperature behavior. in Hyperfine Interactions
Springer Science and Business Media LLC., 241(1), 14.
https://doi.org/10.1007/s10751-019-1684-6

Cherkezova-Zheleva Z, Paneva D, Petkova V, Krstić J, Stefanov G. Reuse of Fe-based amorphous alloys containing CRM: study on their temperature behavior. in Hyperfine Interactions. 2020;241(1):14.
doi:10.1007/s10751-019-1684-6 .

Cherkezova-Zheleva, Z., Paneva, Daniela, Petkova, V., Krstić, Jugoslav, Stefanov, G., "Reuse of Fe-based amorphous alloys containing CRM: study on their temperature behavior" in Hyperfine Interactions, 241, no. 1 (2020):14,
https://doi.org/10.1007/s10751-019-1684-6 . .

TY  - CONF
AU  - Dostanić, Jasmina
AU  - Šalipur, Hristina
AU  - Lončarević, Davor
AU  - Paneva, Daniela
AU  - Cherkezova Zheleva, Z.
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6150
PB  - Institute of Physical Chemistry, Bulgarian Academy of Science
C3  - 21st International Workshop on Nanoscience & Nanotechnology
T1  - Enhancement of Photocatalytic Hydrogen Production of Ni Modified Titania/TiO2 Nanostructures by Tuning Structural and Morphological Properties
SP  - 17
EP  - 17
UR  - https://hdl.handle.net/21.15107/rcub_cer_6150
ER  - 

@conference{
author = "Dostanić, Jasmina and Šalipur, Hristina and Lončarević, Davor and Paneva, Daniela and Cherkezova Zheleva, Z.",
year = "2019",
publisher = "Institute of Physical Chemistry, Bulgarian Academy of Science",
journal = "21st International Workshop on Nanoscience & Nanotechnology",
title = "Enhancement of Photocatalytic Hydrogen Production of Ni Modified Titania/TiO2 Nanostructures by Tuning Structural and Morphological Properties",
pages = "17-17",
url = "https://hdl.handle.net/21.15107/rcub_cer_6150"
}

Dostanić, J., Šalipur, H., Lončarević, D., Paneva, D.,& Cherkezova Zheleva, Z.. (2019). Enhancement of Photocatalytic Hydrogen Production of Ni Modified Titania/TiO2 Nanostructures by Tuning Structural and Morphological Properties. in 21st International Workshop on Nanoscience & Nanotechnology
Institute of Physical Chemistry, Bulgarian Academy of Science., 17-17.
https://hdl.handle.net/21.15107/rcub_cer_6150

Dostanić J, Šalipur H, Lončarević D, Paneva D, Cherkezova Zheleva Z. Enhancement of Photocatalytic Hydrogen Production of Ni Modified Titania/TiO2 Nanostructures by Tuning Structural and Morphological Properties. in 21st International Workshop on Nanoscience & Nanotechnology. 2019;:17-17.
https://hdl.handle.net/21.15107/rcub_cer_6150 .

Dostanić, Jasmina, Šalipur, Hristina, Lončarević, Davor, Paneva, Daniela, Cherkezova Zheleva, Z., "Enhancement of Photocatalytic Hydrogen Production of Ni Modified Titania/TiO2 Nanostructures by Tuning Structural and Morphological Properties" in 21st International Workshop on Nanoscience & Nanotechnology (2019):17-17,
https://hdl.handle.net/21.15107/rcub_cer_6150 .

TY  - JOUR
AU  - Cherkezova-Zheleva, Z.
AU  - Kolev, H.
AU  - Krstić, Jugoslav
AU  - Dimitrov, D.
AU  - Ivanov, K.
AU  - Lončarević, Davor
AU  - Jovanović, Dušan M.
AU  - Mitov, I.
PY  - 2009
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/543
AB  - Series of alumina supported chromium-copper catalysts were prepared by co-impregnation method. The samples were characterized by X-ray diffraction, X-ray photoelectron spectroscopy and UV-visible diffuse reflectance spectroscopy. Dispersion and porosity was also obtained. The experimental and catalytic test results have drawn a conclusion that an interaction between copper and chromium ions takes place. This interaction is responsible for the enhanced catalytic activity of studied catalysts in reaction of total oxidation of industrial formaldehyde production exhaust gas, which contains CO, dimethyl ether and methanol as main components.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - Characterization of double oxide system Cu-Cr-O supported on gamma-Al2O3
VL  - 83
IS  - 9
SP  - 1436
EP  - 1441
DO  - 10.1134/S0036024409090039
ER  - 

@article{
author = "Cherkezova-Zheleva, Z. and Kolev, H. and Krstić, Jugoslav and Dimitrov, D. and Ivanov, K. and Lončarević, Davor and Jovanović, Dušan M. and Mitov, I.",
year = "2009",
abstract = "Series of alumina supported chromium-copper catalysts were prepared by co-impregnation method. The samples were characterized by X-ray diffraction, X-ray photoelectron spectroscopy and UV-visible diffuse reflectance spectroscopy. Dispersion and porosity was also obtained. The experimental and catalytic test results have drawn a conclusion that an interaction between copper and chromium ions takes place. This interaction is responsible for the enhanced catalytic activity of studied catalysts in reaction of total oxidation of industrial formaldehyde production exhaust gas, which contains CO, dimethyl ether and methanol as main components.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "Characterization of double oxide system Cu-Cr-O supported on gamma-Al2O3",
volume = "83",
number = "9",
pages = "1436-1441",
doi = "10.1134/S0036024409090039"
}

Cherkezova-Zheleva, Z., Kolev, H., Krstić, J., Dimitrov, D., Ivanov, K., Lončarević, D., Jovanović, D. M.,& Mitov, I.. (2009). Characterization of double oxide system Cu-Cr-O supported on gamma-Al2O3. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 83(9), 1436-1441.
https://doi.org/10.1134/S0036024409090039

Cherkezova-Zheleva Z, Kolev H, Krstić J, Dimitrov D, Ivanov K, Lončarević D, Jovanović DM, Mitov I. Characterization of double oxide system Cu-Cr-O supported on gamma-Al2O3. in Russian Journal of Physical Chemistry A. 2009;83(9):1436-1441.
doi:10.1134/S0036024409090039 .

Cherkezova-Zheleva, Z., Kolev, H., Krstić, Jugoslav, Dimitrov, D., Ivanov, K., Lončarević, Davor, Jovanović, Dušan M., Mitov, I., "Characterization of double oxide system Cu-Cr-O supported on gamma-Al2O3" in Russian Journal of Physical Chemistry A, 83, no. 9 (2009):1436-1441,
https://doi.org/10.1134/S0036024409090039 . .