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 . .

TY  - JOUR
AU  - Petrović, Srđan
AU  - Terlecki-Baričević, Ana V.
AU  - Karanovic, Lj.
AU  - Kirilov-Stefanov, P.
AU  - Zdujić, Miodrag
AU  - Dondur, Vera
AU  - Paneva, Daniela
AU  - Mitov, I.
AU  - Rakić, Vesna M.
PY  - 2008
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/399
AB  - Two new series of perovskite-type oxides LaMO3 (M = Mg, Ti, Fe) with different ratio Mg/Fe (MF) and Ti/Fe (TF) in the B cation site were prepared by annealing the precursor, obtained by the mechanochemical activation (MCA) of constituent metal oxides, at 1000 degrees C in air. In addition, two closely related perovskites LaFeO3 (LF) and LaTi0.5Mg0.5O3 (TM (50:50)) were synthesized in the similar way. Using MCA method, perovskites were obtained in rather short time and at room temperature. The samples were characterized by X-ray powder diffraction (XRPD), Xray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS), temperature programmed desorption of oxygen (TPD), Mossbauer spectroscopy, BET surface area measurements and tested in methane deep oxidation. According to XRPD analysis all synthesized samples are almost single perovskite phase, with trace amounts of La2O3 phase. Data of Mossbauer spectroscopy identify Fe 31 in octahedral coordination. The activity of perovskite in methane deep oxidation increases in the order TM (50:50)  LT  MF series  LT  TF series. Higher activity of TF samples in respect to MF with similar Fe content can be related to the structural characteristic., mainly to the presence of predominantly most labile oxygen species evidenced by TPD at lowest temperature of oxygen evaluation. In used experimental conditions, the Fe substituted perovskite are thermal stable up to the temperature of 850 degrees C. The stability of Fe active sites is probably the most important parameter responsible for thermal stability of perovskite, but the atomic surface composition also should be taken into account.
PB  - Elsevier
T2  - Applied Catalysis B-Environmental
T1  - LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation
VL  - 79
IS  - 2
SP  - 186
EP  - 198
DO  - 10.1016/j.apcatb.2007.10.022
ER  - 

@article{
author = "Petrović, Srđan and Terlecki-Baričević, Ana V. and Karanovic, Lj. and Kirilov-Stefanov, P. and Zdujić, Miodrag and Dondur, Vera and Paneva, Daniela and Mitov, I. and Rakić, Vesna M.",
year = "2008",
abstract = "Two new series of perovskite-type oxides LaMO3 (M = Mg, Ti, Fe) with different ratio Mg/Fe (MF) and Ti/Fe (TF) in the B cation site were prepared by annealing the precursor, obtained by the mechanochemical activation (MCA) of constituent metal oxides, at 1000 degrees C in air. In addition, two closely related perovskites LaFeO3 (LF) and LaTi0.5Mg0.5O3 (TM (50:50)) were synthesized in the similar way. Using MCA method, perovskites were obtained in rather short time and at room temperature. The samples were characterized by X-ray powder diffraction (XRPD), Xray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS), temperature programmed desorption of oxygen (TPD), Mossbauer spectroscopy, BET surface area measurements and tested in methane deep oxidation. According to XRPD analysis all synthesized samples are almost single perovskite phase, with trace amounts of La2O3 phase. Data of Mossbauer spectroscopy identify Fe 31 in octahedral coordination. The activity of perovskite in methane deep oxidation increases in the order TM (50:50)  LT  MF series  LT  TF series. Higher activity of TF samples in respect to MF with similar Fe content can be related to the structural characteristic., mainly to the presence of predominantly most labile oxygen species evidenced by TPD at lowest temperature of oxygen evaluation. In used experimental conditions, the Fe substituted perovskite are thermal stable up to the temperature of 850 degrees C. The stability of Fe active sites is probably the most important parameter responsible for thermal stability of perovskite, but the atomic surface composition also should be taken into account.",
publisher = "Elsevier",
journal = "Applied Catalysis B-Environmental",
title = "LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation",
volume = "79",
number = "2",
pages = "186-198",
doi = "10.1016/j.apcatb.2007.10.022"
}

Petrović, S., Terlecki-Baričević, A. V., Karanovic, Lj., Kirilov-Stefanov, P., Zdujić, M., Dondur, V., Paneva, D., Mitov, I.,& Rakić, V. M.. (2008). LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation. in Applied Catalysis B-Environmental
Elsevier., 79(2), 186-198.
https://doi.org/10.1016/j.apcatb.2007.10.022

Petrović S, Terlecki-Baričević AV, Karanovic L, Kirilov-Stefanov P, Zdujić M, Dondur V, Paneva D, Mitov I, Rakić VM. LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation. in Applied Catalysis B-Environmental. 2008;79(2):186-198.
doi:10.1016/j.apcatb.2007.10.022 .

Petrović, Srđan, Terlecki-Baričević, Ana V., Karanovic, Lj., Kirilov-Stefanov, P., Zdujić, Miodrag, Dondur, Vera, Paneva, Daniela, Mitov, I., Rakić, Vesna M., "LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation" in Applied Catalysis B-Environmental, 79, no. 2 (2008):186-198,
https://doi.org/10.1016/j.apcatb.2007.10.022 . .

TY  - JOUR
AU  - Cherkezova-Zheleva, Z. P.
AU  - Shopska, M. G.
AU  - Krstić, Jugoslav
AU  - Jovanović, Dušan M.
AU  - Mitov, I. G.
AU  - Kadinov, G. B.
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/297
AB  - Samples of one-(Fe) and two-component (Fe-Pd and Fe-Pt) catalysts were prepared by incipient wetness impregnation of four different supports: TiO2 (anatase), gamma-Al2O3, activated carbon, and diatomite. The chosen synthesis conditions resulted in the formation of nanosized supported phases - iron oxide (in the onecomponent samples), or iron oxide - noble metal (in the two-component ones). Different agglomeration degrees of these phases were obtained as a result of thermal treatment. Ultradisperse size of the supported phase was maintained in some samples, while a process of partial agglomeration occurred in others, giving rise to nearly bidisperse (ultra- and highdisperse) supported particles. The different texture of the used supports and their chemical composition are the reasons for the different stability of the nanosized supported phases. The samples were tested as heterogeneous catalysts in total benzene oxidation reaction.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - A study of the dispersity of iron oxide and iron oxide-noble metal (Me=Pd, Pt) supported systems
VL  - 81
IS  - 9
SP  - 1471
EP  - 1476
DO  - 10.1134/S0036024407090245
ER  - 

@article{
author = "Cherkezova-Zheleva, Z. P. and Shopska, M. G. and Krstić, Jugoslav and Jovanović, Dušan M. and Mitov, I. G. and Kadinov, G. B.",
year = "2007",
abstract = "Samples of one-(Fe) and two-component (Fe-Pd and Fe-Pt) catalysts were prepared by incipient wetness impregnation of four different supports: TiO2 (anatase), gamma-Al2O3, activated carbon, and diatomite. The chosen synthesis conditions resulted in the formation of nanosized supported phases - iron oxide (in the onecomponent samples), or iron oxide - noble metal (in the two-component ones). Different agglomeration degrees of these phases were obtained as a result of thermal treatment. Ultradisperse size of the supported phase was maintained in some samples, while a process of partial agglomeration occurred in others, giving rise to nearly bidisperse (ultra- and highdisperse) supported particles. The different texture of the used supports and their chemical composition are the reasons for the different stability of the nanosized supported phases. The samples were tested as heterogeneous catalysts in total benzene oxidation reaction.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "A study of the dispersity of iron oxide and iron oxide-noble metal (Me=Pd, Pt) supported systems",
volume = "81",
number = "9",
pages = "1471-1476",
doi = "10.1134/S0036024407090245"
}

Cherkezova-Zheleva, Z. P., Shopska, M. G., Krstić, J., Jovanović, D. M., Mitov, I. G.,& Kadinov, G. B.. (2007). A study of the dispersity of iron oxide and iron oxide-noble metal (Me=Pd, Pt) supported systems. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 81(9), 1471-1476.
https://doi.org/10.1134/S0036024407090245

Cherkezova-Zheleva ZP, Shopska MG, Krstić J, Jovanović DM, Mitov IG, Kadinov GB. A study of the dispersity of iron oxide and iron oxide-noble metal (Me=Pd, Pt) supported systems. in Russian Journal of Physical Chemistry A. 2007;81(9):1471-1476.
doi:10.1134/S0036024407090245 .

Cherkezova-Zheleva, Z. P., Shopska, M. G., Krstić, Jugoslav, Jovanović, Dušan M., Mitov, I. G., Kadinov, G. B., "A study of the dispersity of iron oxide and iron oxide-noble metal (Me=Pd, Pt) supported systems" in Russian Journal of Physical Chemistry A, 81, no. 9 (2007):1471-1476,
https://doi.org/10.1134/S0036024407090245 . .