TY  - CONF
AU  - Krstić, Sanja
AU  - Dodevski, Vladimir
AU  - Čebela, Maria
AU  - Rosić, Milena
AU  - Egerić, Marija
AU  - Vujasin, Radojka
AU  - Jaćimovski, Darko
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11485
AB  - The main aim of this research is to show influence of different hydroxides, applied in carbon materials activation process on the electrochemical properties of activated carbon samples. The carbon material samples were prepared by hydrothermal treatment of sucrose and thermally activated using KOH, NaOH and LiOH by chemical activation method. The electrochemical properties of the obtained carbon material samples were examined by cyclic voltammetry and electrochemical impedance spectroscopy and correlated to their physicochemical properties. Investigated samples showed characteristic capacitor-like behavior. The best result of specific capacitance was obtained for the sample synthesized treated by KOH, while the increase in capacitance follows the arrangement of the growth of ionic radius of a metal from an alkali which is used for activation. Dependence on the type of hydroxide is due to differences in the radii of a metal. The alkalis with larger radii of metal produce wider pores and consequently the structure of a porous layer become more accessible and available to the charge transfer of capacitive response.
PB  - Belgrade : University of Belgrade, Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade
T1  - Supercapacitive properties of carbon materials activated by alkali metal hydroxides obtained from sucrose
SP  - 102
EP  - 102
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11485
ER  - 

@conference{
author = "Krstić, Sanja and Dodevski, Vladimir and Čebela, Maria and Rosić, Milena and Egerić, Marija and Vujasin, Radojka and Jaćimovski, Darko",
year = "2023",
abstract = "The main aim of this research is to show influence of different hydroxides, applied in carbon materials activation process on the electrochemical properties of activated carbon samples. The carbon material samples were prepared by hydrothermal treatment of sucrose and thermally activated using KOH, NaOH and LiOH by chemical activation method. The electrochemical properties of the obtained carbon material samples were examined by cyclic voltammetry and electrochemical impedance spectroscopy and correlated to their physicochemical properties. Investigated samples showed characteristic capacitor-like behavior. The best result of specific capacitance was obtained for the sample synthesized treated by KOH, while the increase in capacitance follows the arrangement of the growth of ionic radius of a metal from an alkali which is used for activation. Dependence on the type of hydroxide is due to differences in the radii of a metal. The alkalis with larger radii of metal produce wider pores and consequently the structure of a porous layer become more accessible and available to the charge transfer of capacitive response.",
publisher = "Belgrade : University of Belgrade, Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade",
title = "Supercapacitive properties of carbon materials activated by alkali metal hydroxides obtained from sucrose",
pages = "102-102",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11485"
}

Krstić, S., Dodevski, V., Čebela, M., Rosić, M., Egerić, M., Vujasin, R.,& Jaćimovski, D.. (2023). Supercapacitive properties of carbon materials activated by alkali metal hydroxides obtained from sucrose. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade
Belgrade : University of Belgrade, Institute for Multidisciplinary Research., 102-102.
https://hdl.handle.net/21.15107/rcub_vinar_11485

Krstić S, Dodevski V, Čebela M, Rosić M, Egerić M, Vujasin R, Jaćimovski D. Supercapacitive properties of carbon materials activated by alkali metal hydroxides obtained from sucrose. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade. 2023;:102-102.
https://hdl.handle.net/21.15107/rcub_vinar_11485 .

Krstić, Sanja, Dodevski, Vladimir, Čebela, Maria, Rosić, Milena, Egerić, Marija, Vujasin, Radojka, Jaćimovski, Darko, "Supercapacitive properties of carbon materials activated by alkali metal hydroxides obtained from sucrose" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade (2023):102-102,
https://hdl.handle.net/21.15107/rcub_vinar_11485 .

TY  - JOUR
AU  - Jaćimovski, Darko
AU  - Šućurović, Katarina
AU  - Đuriš, Mihal
AU  - Arsenijević, Zorana
AU  - Krstić, Sanja
AU  - Bošković-Vragolović, Nevenka
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11168
AB  - In this work, the coefficient of fluid-wall mass transfer in an inverse fluidized bed was determined using the adsorption method. The experiments were carried out in a column with a diameter of 45 mm with spherical and non-spherical particles of polypropylene and polyethylene with a diameter of 3.3-4.9 mm and a density of about 930 kg m-3. A diluted solution of methylene blue was used as a fluidization medium, which was adsorbed on part of the surface of the column on silica gel. The obtained results showed that the presence of particles during inverse fluidization does not contribute significantly to mass transfer compared to the influence of particles on transfer in conventional fluidized beds. Therefore, the pseudofluid concept was introduced into the analysis and an empirical correlation was performed to determine the mass transfer coefficient. The obtained results were compared with literature correlations for inverse and conventional fluidized beds.
AB  - У овом раду је одређиван коефицијент преноса масе флуид–зид у инверзно-флуидизованом слоју применом адсорпционе методе. Експерименти су вршени у колони
пречника 45 mm са сферичним и несферичним честицама полипропилена и полиетилена пречника 3,3–4,9 mm и густине око 930 kg m-3. Као флуидизациони медијум
коришћен је разблажени раствор метиленског плавог који је адсорбован на делу површине колоне на силикагелу. Добијени резултати показали су да присуство честица при
инверзној флуидизацији не доприноси значајно преносу масе у поређењу са утицајем
честица на пренос масе у конвенционално флуидизованим слојевима. Због тога је у анализу уведен концепт псеудофлуида и изведена је емпиријска корелација за одређивање
коефицијента преноса масе. Извршено је поређење добијених резултата са литературним корелацијама за инверзну и конвенционалну флуидизације.
T2  - Journal of the Serbian Chemical Society
T1  - Mass transfer in inverse fluidized beds
T1  - Пренос масе у инверзно-флуидизованом слоју
VL  - 88
IS  - 9
SP  - 905
EP  - 919
DO  - 10.2298/JSC230116016J
ER  - 

@article{
author = "Jaćimovski, Darko and Šućurović, Katarina and Đuriš, Mihal and Arsenijević, Zorana and Krstić, Sanja and Bošković-Vragolović, Nevenka",
year = "2023",
abstract = "In this work, the coefficient of fluid-wall mass transfer in an inverse fluidized bed was determined using the adsorption method. The experiments were carried out in a column with a diameter of 45 mm with spherical and non-spherical particles of polypropylene and polyethylene with a diameter of 3.3-4.9 mm and a density of about 930 kg m-3. A diluted solution of methylene blue was used as a fluidization medium, which was adsorbed on part of the surface of the column on silica gel. The obtained results showed that the presence of particles during inverse fluidization does not contribute significantly to mass transfer compared to the influence of particles on transfer in conventional fluidized beds. Therefore, the pseudofluid concept was introduced into the analysis and an empirical correlation was performed to determine the mass transfer coefficient. The obtained results were compared with literature correlations for inverse and conventional fluidized beds., У овом раду је одређиван коефицијент преноса масе флуид–зид у инверзно-флуидизованом слоју применом адсорпционе методе. Експерименти су вршени у колони
пречника 45 mm са сферичним и несферичним честицама полипропилена и полиетилена пречника 3,3–4,9 mm и густине око 930 kg m-3. Као флуидизациони медијум
коришћен је разблажени раствор метиленског плавог који је адсорбован на делу површине колоне на силикагелу. Добијени резултати показали су да присуство честица при
инверзној флуидизацији не доприноси значајно преносу масе у поређењу са утицајем
честица на пренос масе у конвенционално флуидизованим слојевима. Због тога је у анализу уведен концепт псеудофлуида и изведена је емпиријска корелација за одређивање
коефицијента преноса масе. Извршено је поређење добијених резултата са литературним корелацијама за инверзну и конвенционалну флуидизације.",
journal = "Journal of the Serbian Chemical Society",
title = "Mass transfer in inverse fluidized beds, Пренос масе у инверзно-флуидизованом слоју",
volume = "88",
number = "9",
pages = "905-919",
doi = "10.2298/JSC230116016J"
}

Jaćimovski, D., Šućurović, K., Đuriš, M., Arsenijević, Z., Krstić, S.,& Bošković-Vragolović, N.. (2023). Mass transfer in inverse fluidized beds. in Journal of the Serbian Chemical Society, 88(9), 905-919.
https://doi.org/10.2298/JSC230116016J

Jaćimovski D, Šućurović K, Đuriš M, Arsenijević Z, Krstić S, Bošković-Vragolović N. Mass transfer in inverse fluidized beds. in Journal of the Serbian Chemical Society. 2023;88(9):905-919.
doi:10.2298/JSC230116016J .

Jaćimovski, Darko, Šućurović, Katarina, Đuriš, Mihal, Arsenijević, Zorana, Krstić, Sanja, Bošković-Vragolović, Nevenka, "Mass transfer in inverse fluidized beds" in Journal of the Serbian Chemical Society, 88, no. 9 (2023):905-919,
https://doi.org/10.2298/JSC230116016J . .