Kostić, Ivana

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  • Kostić, Ivana (2)
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Author's Bibliography

Microwave Synthesis of Unusually-Shaped Crystalline RuO2 Supercapacitor

Šekularac, Gavrilo; Dekanski, Aleksandar; Pavelkić, Vesna; Stevanović, Sanja; Košević, Milica; Drmanić, Saša; Kostić, Ivana; Panić, Vladimir

(Academician Evgeni Budevski Institute of Electrochemistry and Energy Systems Bulgarian Academy of Sciences, Sofia, Bulgaria, 2015)

TY  - CONF
AU  - Šekularac, Gavrilo
AU  - Dekanski, Aleksandar
AU  - Pavelkić, Vesna
AU  - Stevanović, Sanja
AU  - Košević, Milica
AU  - Drmanić, Saša
AU  - Kostić, Ivana
AU  - Panić, Vladimir
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2881
AB  - One-step simple temperature-controlled microwave synthesis was applied to prepare nanocrystalline RuO2 dispersion from aqueous RuCl3. RuO2 dispersion was subjected to dynamic light scattering in order to analyze the synthesized particles, whereas structural and morphological properties of the solid phase are investigated by AFM, SEM, EDAX and XRD techniques. The ordered unusual shape of ca. 100-nm native particles, as well as highlyordered prismatic agglomerate sheets are observed. Capacitive properties of RuO2 was investigated by cyclic   voltammetry and electrochemical impedance spectroscopy in 1 M H2SO4 and standard three-electrode cell, with ink-type working electrode on glassy carbon substrate A specific capacitances as high as 750 F/g were obtained, which negligibly depend on sweep rate in 5–500 mV/s range. These findings are quite unusual for this kind of material consisted of rather large particles, and makes it excellent candidate for both low and high power applications. The capacitive response appears stable during prolonged charge/discharge cycling.
PB  - Academician Evgeni Budevski Institute of Electrochemistry and Energy Systems Bulgarian Academy of Sciences, Sofia, Bulgaria
C3  - 5th Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
T1  - Microwave Synthesis of Unusually-Shaped Crystalline RuO2 Supercapacitor
EP  - 93
SP  - 93
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2881
ER  - 
@conference{
author = "Šekularac, Gavrilo and Dekanski, Aleksandar and Pavelkić, Vesna and Stevanović, Sanja and Košević, Milica and Drmanić, Saša and Kostić, Ivana and Panić, Vladimir",
year = "2015",
abstract = "One-step simple temperature-controlled microwave synthesis was applied to prepare nanocrystalline RuO2 dispersion from aqueous RuCl3. RuO2 dispersion was subjected to dynamic light scattering in order to analyze the synthesized particles, whereas structural and morphological properties of the solid phase are investigated by AFM, SEM, EDAX and XRD techniques. The ordered unusual shape of ca. 100-nm native particles, as well as highlyordered prismatic agglomerate sheets are observed. Capacitive properties of RuO2 was investigated by cyclic   voltammetry and electrochemical impedance spectroscopy in 1 M H2SO4 and standard three-electrode cell, with ink-type working electrode on glassy carbon substrate A specific capacitances as high as 750 F/g were obtained, which negligibly depend on sweep rate in 5–500 mV/s range. These findings are quite unusual for this kind of material consisted of rather large particles, and makes it excellent candidate for both low and high power applications. The capacitive response appears stable during prolonged charge/discharge cycling.",
publisher = "Academician Evgeni Budevski Institute of Electrochemistry and Energy Systems Bulgarian Academy of Sciences, Sofia, Bulgaria",
journal = "5th Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts",
title = "Microwave Synthesis of Unusually-Shaped Crystalline RuO2 Supercapacitor",
pages = "93-93",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2881"
}
Šekularac, G., Dekanski, A., Pavelkić, V., Stevanović, S., Košević, M., Drmanić, S., Kostić, I.,& Panić, V.. (2015). Microwave Synthesis of Unusually-Shaped Crystalline RuO2 Supercapacitor. in 5th Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts
Academician Evgeni Budevski Institute of Electrochemistry and Energy Systems Bulgarian Academy of Sciences, Sofia, Bulgaria., 93-93.
https://hdl.handle.net/21.15107/rcub_technorep_2881
Šekularac G, Dekanski A, Pavelkić V, Stevanović S, Košević M, Drmanić S, Kostić I, Panić V. Microwave Synthesis of Unusually-Shaped Crystalline RuO2 Supercapacitor. in 5th Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts. 2015;:93-93.
https://hdl.handle.net/21.15107/rcub_technorep_2881 .
Šekularac, Gavrilo, Dekanski, Aleksandar, Pavelkić, Vesna, Stevanović, Sanja, Košević, Milica, Drmanić, Saša, Kostić, Ivana, Panić, Vladimir, "Microwave Synthesis of Unusually-Shaped Crystalline RuO2 Supercapacitor" in 5th Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstracts (2015):93-93,
https://hdl.handle.net/21.15107/rcub_technorep_2881 .

Thermal, morphological and mechanical properties of ethyl vanillin immobilized in polyvinyl alcohol by electrospinning process

Lević, Steva; Obradović, Nina; Pavlović, Vladimir B.; Isailović, Bojana; Kostić, Ivana; Bugarski, Branko; Nedović, Viktor

(Vilnus : Central and Eastern European Committee for Thermal Analysis and Calorimetry, 2013)

TY  - CONF
AU  - Lević, Steva
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B.
AU  - Isailović, Bojana
AU  - Kostić, Ivana
AU  - Bugarski, Branko
AU  - Nedović, Viktor
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2283
AB  - In this study, polyvinyl alcohol (PVA) nanofibers with ethyl vanillin as active compound were prepared using electrospinning technique. The final products of electrospinning process were in the form of films consist of nanofibers. PVNethyl vanillin nanofibers, having fibers diameters in the range 100-1700 nm, were successfully electrospun from ethanol/water mixture of PVA and ethyl vanillin. The effects of immobilization process on ethyl vanillin thermal properties were investigated by differential scanning calorimetry (DSC). The results of DSC showed significant influence of immobilization process on thermal properties of ethyl vanillin. It was noticed that melting point of immobilized ethyl vanillin was lower (~55°C) compared to free flavor (~77°C). Our results showed that films based on PVNethyl vanillin nanofibers are mechanically stable.
PB  - Vilnus : Central and Eastern European Committee for Thermal Analysis and Calorimetry
C3  - 2nd Central and Eastern European Conference on Thermal Analysis and Calorimetry 27-30 August 2013, V
T1  - Thermal, morphological and mechanical properties of ethyl vanillin immobilized in polyvinyl alcohol by electrospinning process
EP  - 294
SP  - 294
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2283
ER  - 
@conference{
author = "Lević, Steva and Obradović, Nina and Pavlović, Vladimir B. and Isailović, Bojana and Kostić, Ivana and Bugarski, Branko and Nedović, Viktor",
year = "2013",
abstract = "In this study, polyvinyl alcohol (PVA) nanofibers with ethyl vanillin as active compound were prepared using electrospinning technique. The final products of electrospinning process were in the form of films consist of nanofibers. PVNethyl vanillin nanofibers, having fibers diameters in the range 100-1700 nm, were successfully electrospun from ethanol/water mixture of PVA and ethyl vanillin. The effects of immobilization process on ethyl vanillin thermal properties were investigated by differential scanning calorimetry (DSC). The results of DSC showed significant influence of immobilization process on thermal properties of ethyl vanillin. It was noticed that melting point of immobilized ethyl vanillin was lower (~55°C) compared to free flavor (~77°C). Our results showed that films based on PVNethyl vanillin nanofibers are mechanically stable.",
publisher = "Vilnus : Central and Eastern European Committee for Thermal Analysis and Calorimetry",
journal = "2nd Central and Eastern European Conference on Thermal Analysis and Calorimetry 27-30 August 2013, V",
title = "Thermal, morphological and mechanical properties of ethyl vanillin immobilized in polyvinyl alcohol by electrospinning process",
pages = "294-294",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2283"
}
Lević, S., Obradović, N., Pavlović, V. B., Isailović, B., Kostić, I., Bugarski, B.,& Nedović, V.. (2013). Thermal, morphological and mechanical properties of ethyl vanillin immobilized in polyvinyl alcohol by electrospinning process. in 2nd Central and Eastern European Conference on Thermal Analysis and Calorimetry 27-30 August 2013, V
Vilnus : Central and Eastern European Committee for Thermal Analysis and Calorimetry., 294-294.
https://hdl.handle.net/21.15107/rcub_technorep_2283
Lević S, Obradović N, Pavlović VB, Isailović B, Kostić I, Bugarski B, Nedović V. Thermal, morphological and mechanical properties of ethyl vanillin immobilized in polyvinyl alcohol by electrospinning process. in 2nd Central and Eastern European Conference on Thermal Analysis and Calorimetry 27-30 August 2013, V. 2013;:294-294.
https://hdl.handle.net/21.15107/rcub_technorep_2283 .
Lević, Steva, Obradović, Nina, Pavlović, Vladimir B., Isailović, Bojana, Kostić, Ivana, Bugarski, Branko, Nedović, Viktor, "Thermal, morphological and mechanical properties of ethyl vanillin immobilized in polyvinyl alcohol by electrospinning process" in 2nd Central and Eastern European Conference on Thermal Analysis and Calorimetry 27-30 August 2013, V (2013):294-294,
https://hdl.handle.net/21.15107/rcub_technorep_2283 .