Brankovic, Goran

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110274de-aa27-422c-bc43-5433b37e4421
  • Brankovic, Goran (2)
Projects

Author's Bibliography

Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration

Malesevic, Aleksandar; Radojkovic, Aleksandar; Zunic, Milan; Dapčević, Aleksandra; Perac, Sanja; Branković, Zorica; Brankovic, Goran

(2022)

TY  - JOUR
AU  - Malesevic, Aleksandar
AU  - Radojkovic, Aleksandar
AU  - Zunic, Milan
AU  - Dapčević, Aleksandra
AU  - Perac, Sanja
AU  - Branković, Zorica
AU  - Brankovic, Goran
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4993
AB  - The properties of BaCe1-xInxO3-delta (x = 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, and 0.40) as proton conducting electrolyte are examined. The dense electrolyte is formed after sintering at 1300 degrees C for 5 h in air. The samples with In content > 25 mol% contain In2O3 as a secondary phase. The highest total conductivity is around 5x10(-3) S/cm for BaCe0.75In0.25O3-delta in the wet hydrogen atmosphere at 700 degrees C. After exposure to pure CO2 atmosphere at 700 degrees C for 5 h, the concentrations of at least 15 mol% In can completely suppress degradation of the electrolyte. The power density of Ni-BaCe0.75In0.25O3-delta/BaCe0.75In0.25O3-delta/LSCF-BaCe0.75In0.25O3-delta fuel cell tested in wet hydrogen atmosphere reaches 264 mW/cm(2) at 700 degrees C. This result is an indication of stability and functionality of this electrolyte and its versatility in respect to type of fuel and performing environment.
T2  - Journal of Advanced Ceramics
T1  - Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration
EP  - 453
IS  - 3
SP  - 443
VL  - 11
DO  - 10.1007/s40145-021-0547-1
ER  - 
@article{
author = "Malesevic, Aleksandar and Radojkovic, Aleksandar and Zunic, Milan and Dapčević, Aleksandra and Perac, Sanja and Branković, Zorica and Brankovic, Goran",
year = "2022",
abstract = "The properties of BaCe1-xInxO3-delta (x = 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, and 0.40) as proton conducting electrolyte are examined. The dense electrolyte is formed after sintering at 1300 degrees C for 5 h in air. The samples with In content > 25 mol% contain In2O3 as a secondary phase. The highest total conductivity is around 5x10(-3) S/cm for BaCe0.75In0.25O3-delta in the wet hydrogen atmosphere at 700 degrees C. After exposure to pure CO2 atmosphere at 700 degrees C for 5 h, the concentrations of at least 15 mol% In can completely suppress degradation of the electrolyte. The power density of Ni-BaCe0.75In0.25O3-delta/BaCe0.75In0.25O3-delta/LSCF-BaCe0.75In0.25O3-delta fuel cell tested in wet hydrogen atmosphere reaches 264 mW/cm(2) at 700 degrees C. This result is an indication of stability and functionality of this electrolyte and its versatility in respect to type of fuel and performing environment.",
journal = "Journal of Advanced Ceramics",
title = "Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration",
pages = "453-443",
number = "3",
volume = "11",
doi = "10.1007/s40145-021-0547-1"
}
Malesevic, A., Radojkovic, A., Zunic, M., Dapčević, A., Perac, S., Branković, Z.,& Brankovic, G.. (2022). Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration. in Journal of Advanced Ceramics, 11(3), 443-453.
https://doi.org/10.1007/s40145-021-0547-1
Malesevic A, Radojkovic A, Zunic M, Dapčević A, Perac S, Branković Z, Brankovic G. Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration. in Journal of Advanced Ceramics. 2022;11(3):443-453.
doi:10.1007/s40145-021-0547-1 .
Malesevic, Aleksandar, Radojkovic, Aleksandar, Zunic, Milan, Dapčević, Aleksandra, Perac, Sanja, Branković, Zorica, Brankovic, Goran, "Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration" in Journal of Advanced Ceramics, 11, no. 3 (2022):443-453,
https://doi.org/10.1007/s40145-021-0547-1 . .
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11
11

Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2

Tasic, Nikola; Cirković, Jovana; Ribic, Vesna; Zunic, Milan; Dapčević, Aleksandra; Brankovic, Goran; Branković, Zorica

(2022)

TY  - JOUR
AU  - Tasic, Nikola
AU  - Cirković, Jovana
AU  - Ribic, Vesna
AU  - Zunic, Milan
AU  - Dapčević, Aleksandra
AU  - Brankovic, Goran
AU  - Branković, Zorica
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4999
AB  - We present the synthesis and photocatalytic properties of mixed-phase TiO2 nanoparticles decorated with silver nanodots obtained by environmental-friendly wet chemical method using low molecular weight chitosan as the silver reducing agent. Structural analysis of synthesized Ag nanoparticles revealed that they crystallized in a rare hexagonal modification. High-resolution transmission electron microscopy study shows that   lt 3-nm hexagonal-Ag nanoparticles are implanted on the surface of   lt 20-nm anatase grains. Compared to Ag-free TiO2 powders, implantation with Ag results in important increase in visible light absorption. The photocatalytic activity of the samples was measured by monitoring decolorization of concentrated textile dye solution (50 mg L-1 of Reactive Orange 16) under simulated solar irradiation of 280 W m(-2). The optimum photocatalytic properties are achieved with 5 wt% of silver. Based on the collected results, the operating mechanism of the degradation process is suggested, and the effects of the silver addition are explained.
T2  - Journal of the American Ceramic Society
T1  - Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2
EP  - 347
IS  - 1
SP  - 336
VL  - 105
DO  - 10.1111/jace.18059
ER  - 
@article{
author = "Tasic, Nikola and Cirković, Jovana and Ribic, Vesna and Zunic, Milan and Dapčević, Aleksandra and Brankovic, Goran and Branković, Zorica",
year = "2022",
abstract = "We present the synthesis and photocatalytic properties of mixed-phase TiO2 nanoparticles decorated with silver nanodots obtained by environmental-friendly wet chemical method using low molecular weight chitosan as the silver reducing agent. Structural analysis of synthesized Ag nanoparticles revealed that they crystallized in a rare hexagonal modification. High-resolution transmission electron microscopy study shows that   lt 3-nm hexagonal-Ag nanoparticles are implanted on the surface of   lt 20-nm anatase grains. Compared to Ag-free TiO2 powders, implantation with Ag results in important increase in visible light absorption. The photocatalytic activity of the samples was measured by monitoring decolorization of concentrated textile dye solution (50 mg L-1 of Reactive Orange 16) under simulated solar irradiation of 280 W m(-2). The optimum photocatalytic properties are achieved with 5 wt% of silver. Based on the collected results, the operating mechanism of the degradation process is suggested, and the effects of the silver addition are explained.",
journal = "Journal of the American Ceramic Society",
title = "Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2",
pages = "347-336",
number = "1",
volume = "105",
doi = "10.1111/jace.18059"
}
Tasic, N., Cirković, J., Ribic, V., Zunic, M., Dapčević, A., Brankovic, G.,& Branković, Z.. (2022). Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2. in Journal of the American Ceramic Society, 105(1), 336-347.
https://doi.org/10.1111/jace.18059
Tasic N, Cirković J, Ribic V, Zunic M, Dapčević A, Brankovic G, Branković Z. Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2. in Journal of the American Ceramic Society. 2022;105(1):336-347.
doi:10.1111/jace.18059 .
Tasic, Nikola, Cirković, Jovana, Ribic, Vesna, Zunic, Milan, Dapčević, Aleksandra, Brankovic, Goran, Branković, Zorica, "Effects of the silver nanodots on the photocatalytic activity of mixed-phase TiO2" in Journal of the American Ceramic Society, 105, no. 1 (2022):336-347,
https://doi.org/10.1111/jace.18059 . .
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