TY  - JOUR
AU  - Aleksić, Katarina
AU  - Marković, Smilja
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/16168
AB  - Efikasnost konverzije energije hibridnih organsko-neorganskih perovskitnih solarnih ćelija (PSC) dostigla je vrednost uporedivu sa komercijalno dostupnim silicijumskim solarnim ćelijama. Glavni izazovi za njihovu komercijalizaciju su nestabilnost i toksičnost.
AB  - The energy conversion efficiency of hybrid organic-inorganic perovskite solar cells (PSCs) has reached a value comparable to commercially available silicon solar cells. The main challenges for their commercialization are instability and toxicity.
PB  - Beograd : Savez inženjera i tehničara Srbije
T2  - Tehnika
T1  - Perovskitne solarne ćelije - dosadašnji razvoj i perspektive
T1  - Perovskite solar cells: Recent development and perspectives
SP  - 667
EP  - 679
VL  - 77
IS  - 6
DO  - 10.5937/tehnika2206667A
UR  - https://hdl.handle.net/21.15107/rcub_dais_16168
ER  - 

@article{
author = "Aleksić, Katarina and Marković, Smilja",
year = "2023",
abstract = "Efikasnost konverzije energije hibridnih organsko-neorganskih perovskitnih solarnih ćelija (PSC) dostigla je vrednost uporedivu sa komercijalno dostupnim silicijumskim solarnim ćelijama. Glavni izazovi za njihovu komercijalizaciju su nestabilnost i toksičnost., The energy conversion efficiency of hybrid organic-inorganic perovskite solar cells (PSCs) has reached a value comparable to commercially available silicon solar cells. The main challenges for their commercialization are instability and toxicity.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "Tehnika",
title = "Perovskitne solarne ćelije - dosadašnji razvoj i perspektive, Perovskite solar cells: Recent development and perspectives",
pages = "667-679",
volume = "77",
number = "6",
doi = "10.5937/tehnika2206667A",
url = "https://hdl.handle.net/21.15107/rcub_dais_16168"
}

Aleksić, K.,& Marković, S.. (2023). Perovskitne solarne ćelije - dosadašnji razvoj i perspektive. in Tehnika
Beograd : Savez inženjera i tehničara Srbije., 77(6), 667-679.
https://doi.org/10.5937/tehnika2206667A
https://hdl.handle.net/21.15107/rcub_dais_16168

Aleksić K, Marković S. Perovskitne solarne ćelije - dosadašnji razvoj i perspektive. in Tehnika. 2023;77(6):667-679.
doi:10.5937/tehnika2206667A
https://hdl.handle.net/21.15107/rcub_dais_16168 .

Aleksić, Katarina, Marković, Smilja, "Perovskitne solarne ćelije - dosadašnji razvoj i perspektive" in Tehnika, 77, no. 6 (2023):667-679,
https://doi.org/10.5937/tehnika2206667A .,
https://hdl.handle.net/21.15107/rcub_dais_16168 .

TY  - CONF
AU  - Kratovac, Marija
AU  - Aleksić, Katarina
AU  - Marković, Smilja
AU  - Stojković Simatović, Ivana
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/16166
UR  - https://www.shd.org.rs/wp-content/uploads/2023/11/9CYCS_Book-of-Abstracts.pdf
AB  - The hydrogen evolution reaction (HER) is one of the indispensable parts of the water splitting process and is increasingly being researched [1]. The main goal of this study was to enhance the electrochemical properties of nanostructured zinc oxide (ZnO) particles toward HER. In order to enhance their electrochemical properties, ZnO nanoparticles were precipitated onto graphene oxide (GO) to form a ZnO/GO composite which was in situ reduced before electrochemical measurements toward HER.
A composite of ZnO/GO (0.1 and 0.5 wt.%) was synthesized using a microwave processing of a precipitate. X-ray diffraction analysis (XRD), Raman spectroscopy, and field emission scanning electron microscopy (FESEM) were used to investigate the structural and morphological characteristics of composite materials. The diffractograms showed narrow reflections with relatively high intensities, which implies high crystallinity of composite materials. Raman spectra of ZnO/GO_0.5 shows a higher intensity D- and G-bands, attributed to GO, than ZnO/GO_0.1 confirming a larger amount of graphene oxide. FESEM images of composite samples show nanostructured particles. Before HER measurements, the electrode prepared by a mixture of ZnO/GO composite, nafion and ethanol/water solvent, was in situ reduced at potential -1.4 V in 0.1 M KCl to get ZnO/rGO. HER activity was investigated in NaOH by linear voltammetry. ZnO/rGO_0.5 showed increased electrochemical activity as a result of the evolution of hydrogen starting earlier and the higher current density.
PB  - Belgrade : Serbian Chemical Society
PB  - Belgrade : Serbian Young Chemists Club
C3  - Book of abstracts / 9th Conference of the Young Chemists of Serbia, 4th November 2023, Novi Sad
T1  - Investigation of hydrogen evolution reaction on ZnO/rGO
SP  - 114
EP  - 114
UR  - https://hdl.handle.net/21.15107/rcub_dais_16166
ER  - 

@conference{
author = "Kratovac, Marija and Aleksić, Katarina and Marković, Smilja and Stojković Simatović, Ivana",
year = "2023",
abstract = "The hydrogen evolution reaction (HER) is one of the indispensable parts of the water splitting process and is increasingly being researched [1]. The main goal of this study was to enhance the electrochemical properties of nanostructured zinc oxide (ZnO) particles toward HER. In order to enhance their electrochemical properties, ZnO nanoparticles were precipitated onto graphene oxide (GO) to form a ZnO/GO composite which was in situ reduced before electrochemical measurements toward HER.
A composite of ZnO/GO (0.1 and 0.5 wt.%) was synthesized using a microwave processing of a precipitate. X-ray diffraction analysis (XRD), Raman spectroscopy, and field emission scanning electron microscopy (FESEM) were used to investigate the structural and morphological characteristics of composite materials. The diffractograms showed narrow reflections with relatively high intensities, which implies high crystallinity of composite materials. Raman spectra of ZnO/GO_0.5 shows a higher intensity D- and G-bands, attributed to GO, than ZnO/GO_0.1 confirming a larger amount of graphene oxide. FESEM images of composite samples show nanostructured particles. Before HER measurements, the electrode prepared by a mixture of ZnO/GO composite, nafion and ethanol/water solvent, was in situ reduced at potential -1.4 V in 0.1 M KCl to get ZnO/rGO. HER activity was investigated in NaOH by linear voltammetry. ZnO/rGO_0.5 showed increased electrochemical activity as a result of the evolution of hydrogen starting earlier and the higher current density.",
publisher = "Belgrade : Serbian Chemical Society, Belgrade : Serbian Young Chemists Club",
journal = "Book of abstracts / 9th Conference of the Young Chemists of Serbia, 4th November 2023, Novi Sad",
title = "Investigation of hydrogen evolution reaction on ZnO/rGO",
pages = "114-114",
url = "https://hdl.handle.net/21.15107/rcub_dais_16166"
}

Kratovac, M., Aleksić, K., Marković, S.,& Stojković Simatović, I.. (2023). Investigation of hydrogen evolution reaction on ZnO/rGO. in Book of abstracts / 9th Conference of the Young Chemists of Serbia, 4th November 2023, Novi Sad
Belgrade : Serbian Chemical Society., 114-114.
https://hdl.handle.net/21.15107/rcub_dais_16166

Kratovac M, Aleksić K, Marković S, Stojković Simatović I. Investigation of hydrogen evolution reaction on ZnO/rGO. in Book of abstracts / 9th Conference of the Young Chemists of Serbia, 4th November 2023, Novi Sad. 2023;:114-114.
https://hdl.handle.net/21.15107/rcub_dais_16166 .

Kratovac, Marija, Aleksić, Katarina, Marković, Smilja, Stojković Simatović, Ivana, "Investigation of hydrogen evolution reaction on ZnO/rGO" in Book of abstracts / 9th Conference of the Young Chemists of Serbia, 4th November 2023, Novi Sad (2023):114-114,
https://hdl.handle.net/21.15107/rcub_dais_16166 .

TY  - CONF
AU  - Aleksić, Katarina
AU  - Bajić, Danica
AU  - Stojanović, Zoran
AU  - Latinović, Luka
AU  - Tomašević, Vladimir
AU  - Stojković Simatović, Ivana
AU  - Marković, Smilja
PY  - 2023
UR  - https://www.eurocorr2023.org/
UR  - https://dais.sanu.ac.rs/123456789/16171
AB  - Recently we have developed polymer/ceramic composite coatings based on poly(vinyl butyral), hydroxyapatite and zinc oxide-based nanostructured powders (PVB, HAP:Co and ZnO:Co, respectively). Prepared composite coatings showed good both adhesions to metal and glass surfaces and camouflage properties, thus can be used to improve combat capability of military equipment. An essential demand of new materials in the military industry is to be multifunctional.
Accordingly, the aim of this study was to examine corrosion activity of the PVB/ZnO:Co and PVB/HAP:Co coatings in saline solution as a function of immersion time. The ZnO:Co and HAP:Co nanostructured powders were synthesized by hydrothermal processing of a precipitate. To adjust optical properties, synthesized powders were annealed at 400, 800 and 1000 °C. Annealed powders were mixed with PVB: each powder was dispersed in ethanol with the aid of an ultrasonic probe, successively PVB powder was added in dispersion, in 10 wt.% regard to ethanol, and stirred on a mechanical stirrer to completely dissolve. Prepared solution was coated on stainless steel substrate and dried at room temperature for 72 hours to form solid coating. The corrosion activity of the coatings was measured by potentiodynamic polarization technique in the potential range from -0.8 to -0.2 V vs SCE, with the scan rate of 10mVs-1. The measurements were performed using a conventional three-electrode cell in 3% NaCl water solution as the electrolyte. Platinum foil, a standard calomel electrode (SCE) and coated stainless steel were used as the counter, reference and working electrode, respectively. We found that all examined coatings have lower corrosion activity than bare stainless steel or stainless steel coated with pure PVB. Differences in corrosion activity between the coatings are explained by different textural and optoelectronic properties of ceramic powders modified by the annealing procedure.
PB  - European Federation of Corrosion
C3  - EUROCORR2023 : The Annual Congress of the European Federation of Corrosion, August 27-31, 2023, Brussels, Belgium (EFC Event number 459)
T1  - Anti-corrosive composite coatings based on PVB/ZnO:Co and PVB/HAP:Co
UR  - https://hdl.handle.net/21.15107/rcub_dais_16171
ER  - 

@conference{
author = "Aleksić, Katarina and Bajić, Danica and Stojanović, Zoran and Latinović, Luka and Tomašević, Vladimir and Stojković Simatović, Ivana and Marković, Smilja",
year = "2023",
abstract = "Recently we have developed polymer/ceramic composite coatings based on poly(vinyl butyral), hydroxyapatite and zinc oxide-based nanostructured powders (PVB, HAP:Co and ZnO:Co, respectively). Prepared composite coatings showed good both adhesions to metal and glass surfaces and camouflage properties, thus can be used to improve combat capability of military equipment. An essential demand of new materials in the military industry is to be multifunctional.
Accordingly, the aim of this study was to examine corrosion activity of the PVB/ZnO:Co and PVB/HAP:Co coatings in saline solution as a function of immersion time. The ZnO:Co and HAP:Co nanostructured powders were synthesized by hydrothermal processing of a precipitate. To adjust optical properties, synthesized powders were annealed at 400, 800 and 1000 °C. Annealed powders were mixed with PVB: each powder was dispersed in ethanol with the aid of an ultrasonic probe, successively PVB powder was added in dispersion, in 10 wt.% regard to ethanol, and stirred on a mechanical stirrer to completely dissolve. Prepared solution was coated on stainless steel substrate and dried at room temperature for 72 hours to form solid coating. The corrosion activity of the coatings was measured by potentiodynamic polarization technique in the potential range from -0.8 to -0.2 V vs SCE, with the scan rate of 10mVs-1. The measurements were performed using a conventional three-electrode cell in 3% NaCl water solution as the electrolyte. Platinum foil, a standard calomel electrode (SCE) and coated stainless steel were used as the counter, reference and working electrode, respectively. We found that all examined coatings have lower corrosion activity than bare stainless steel or stainless steel coated with pure PVB. Differences in corrosion activity between the coatings are explained by different textural and optoelectronic properties of ceramic powders modified by the annealing procedure.",
publisher = "European Federation of Corrosion",
journal = "EUROCORR2023 : The Annual Congress of the European Federation of Corrosion, August 27-31, 2023, Brussels, Belgium (EFC Event number 459)",
title = "Anti-corrosive composite coatings based on PVB/ZnO:Co and PVB/HAP:Co",
url = "https://hdl.handle.net/21.15107/rcub_dais_16171"
}

Aleksić, K., Bajić, D., Stojanović, Z., Latinović, L., Tomašević, V., Stojković Simatović, I.,& Marković, S.. (2023). Anti-corrosive composite coatings based on PVB/ZnO:Co and PVB/HAP:Co. in EUROCORR2023 : The Annual Congress of the European Federation of Corrosion, August 27-31, 2023, Brussels, Belgium (EFC Event number 459)
European Federation of Corrosion..
https://hdl.handle.net/21.15107/rcub_dais_16171

Aleksić K, Bajić D, Stojanović Z, Latinović L, Tomašević V, Stojković Simatović I, Marković S. Anti-corrosive composite coatings based on PVB/ZnO:Co and PVB/HAP:Co. in EUROCORR2023 : The Annual Congress of the European Federation of Corrosion, August 27-31, 2023, Brussels, Belgium (EFC Event number 459). 2023;.
https://hdl.handle.net/21.15107/rcub_dais_16171 .

Aleksić, Katarina, Bajić, Danica, Stojanović, Zoran, Latinović, Luka, Tomašević, Vladimir, Stojković Simatović, Ivana, Marković, Smilja, "Anti-corrosive composite coatings based on PVB/ZnO:Co and PVB/HAP:Co" in EUROCORR2023 : The Annual Congress of the European Federation of Corrosion, August 27-31, 2023, Brussels, Belgium (EFC Event number 459) (2023),
https://hdl.handle.net/21.15107/rcub_dais_16171 .

TY  - CONF
AU  - Aleksić, Katarina
AU  - Stanković, Ana
AU  - Veselinović, Ljiljana
AU  - Škapin, Srečo
AU  - Stojković Simatović, Ivana
AU  - Marković, Smilja
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15853
AB  - The increasing demand for efficient catalysts has raised concerns about the limited availability and high cost of platinum group metal (PGM) catalysts. Ruthenium dioxide (RuO2) has shown remarkable catalytic activity; however, its extensive use is hindered by its high cost. To tackle this challenge, we investigated the utilization of zinc oxide (ZnO) as a promising alternative to reduce reliance on expensive RuO2 catalysts while maintaining catalytic performance by synthesizing ZnO/RuO2 composites in various mass ratios (1:1, 2:1, 10:1) through microwave processing of a precipitate, followed by calcination at temperatures of 300 and 600 °C. The crystallinity and phase purity of the particles were analyzed using Xray powder diffraction (XRD) and Raman spectroscopy. Surface chemistry was examined by Fourier-transform infrared (FTIR) spectroscopy. Field emission scanning electron microscopy was employed to investigate the morphology and particle size. Photoluminescence and UVVis diffuse reflectance spectroscopy were utilized for analyzing the optical properties. The electrocatalytic activity of the materials were evaluated via linear sweep voltammetry in both acidic (0.1 M H2SO4) and alkaline (0.1 M NaOH) electrolytes. The ZnO/RuO2 composites exhibited outstanding catalytic performance for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) in both types of electrolytes.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
T1  - Tailoring the ZnO/RuO2 ratio in composite electrocatalysts for efficient HER and OER
SP  - 62
EP  - 62
UR  - https://hdl.handle.net/21.15107/rcub_dais_15853
ER  - 

@conference{
author = "Aleksić, Katarina and Stanković, Ana and Veselinović, Ljiljana and Škapin, Srečo and Stojković Simatović, Ivana and Marković, Smilja",
year = "2023",
abstract = "The increasing demand for efficient catalysts has raised concerns about the limited availability and high cost of platinum group metal (PGM) catalysts. Ruthenium dioxide (RuO2) has shown remarkable catalytic activity; however, its extensive use is hindered by its high cost. To tackle this challenge, we investigated the utilization of zinc oxide (ZnO) as a promising alternative to reduce reliance on expensive RuO2 catalysts while maintaining catalytic performance by synthesizing ZnO/RuO2 composites in various mass ratios (1:1, 2:1, 10:1) through microwave processing of a precipitate, followed by calcination at temperatures of 300 and 600 °C. The crystallinity and phase purity of the particles were analyzed using Xray powder diffraction (XRD) and Raman spectroscopy. Surface chemistry was examined by Fourier-transform infrared (FTIR) spectroscopy. Field emission scanning electron microscopy was employed to investigate the morphology and particle size. Photoluminescence and UVVis diffuse reflectance spectroscopy were utilized for analyzing the optical properties. The electrocatalytic activity of the materials were evaluated via linear sweep voltammetry in both acidic (0.1 M H2SO4) and alkaline (0.1 M NaOH) electrolytes. The ZnO/RuO2 composites exhibited outstanding catalytic performance for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) in both types of electrolytes.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023",
title = "Tailoring the ZnO/RuO2 ratio in composite electrocatalysts for efficient HER and OER",
pages = "62-62",
url = "https://hdl.handle.net/21.15107/rcub_dais_15853"
}

Aleksić, K., Stanković, A., Veselinović, L., Škapin, S., Stojković Simatović, I.,& Marković, S.. (2023). Tailoring the ZnO/RuO2 ratio in composite electrocatalysts for efficient HER and OER. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023
Belgrade : Serbian Ceramic Society., 62-62.
https://hdl.handle.net/21.15107/rcub_dais_15853

Aleksić K, Stanković A, Veselinović L, Škapin S, Stojković Simatović I, Marković S. Tailoring the ZnO/RuO2 ratio in composite electrocatalysts for efficient HER and OER. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023. 2023;:62-62.
https://hdl.handle.net/21.15107/rcub_dais_15853 .

Aleksić, Katarina, Stanković, Ana, Veselinović, Ljiljana, Škapin, Srečo, Stojković Simatović, Ivana, Marković, Smilja, "Tailoring the ZnO/RuO2 ratio in composite electrocatalysts for efficient HER and OER" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023 (2023):62-62,
https://hdl.handle.net/21.15107/rcub_dais_15853 .

TY  - CONF
AU  - Aleksić, Katarina
AU  - Stojković Simatović, Ivana
AU  - Marković, Smilja
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15636
AB  - Affordable catalysts for use in water electrolysis and fuel cells as clean energy sources pose a significant challenge. Currently, platinum group metal catalysts are both expensive and difficult to obtain. In this research, an attempt is made to address this issue by investigating methods to reduce costs. Specifically, the use of RuO2 instead of Ru and the incorporation of a substantial amount of easily available ZnO, which has various applications, are explored. A composite of ZnO@RuO2 in a 10:1 molar ratio was synthesized using microwave processing of a precipitate. To enhance its catalytic properties, the composite was subsequently annealed at 300 and 600 °C. A detailed analysis of the crystal structure, morphology, optical and (photo)electrocatalytic properties of the processed 10ZnO@RuO2 catalyst particles was conducted. The catalytic activity of the prepared composites toward the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in 0.1 M NaOH and 0.1 M H2SO4 was investigated using linear sweep voltammetry (LSV). The measurements were taken both in the dark and under illumination after 60 minutes of exposure. To determine the intrinsic HER and OER activity of the studied catalyst, the LSV data were normalized by the electrochemical surface area (ECSA). Finally, the oxygen reduction reaction (ORR) activity of the catalysts was tested in both alkaline and acidic electrolytes.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
T1  - ZnO@RuO2 composites: Cost-effective trifunctional electrocatalysts for enhanced OER, HER, and ORR activities in water electrolysis
SP  - 42
EP  - 42
UR  - https://hdl.handle.net/21.15107/rcub_dais_15636
ER  - 

@conference{
author = "Aleksić, Katarina and Stojković Simatović, Ivana and Marković, Smilja",
year = "2023",
abstract = "Affordable catalysts for use in water electrolysis and fuel cells as clean energy sources pose a significant challenge. Currently, platinum group metal catalysts are both expensive and difficult to obtain. In this research, an attempt is made to address this issue by investigating methods to reduce costs. Specifically, the use of RuO2 instead of Ru and the incorporation of a substantial amount of easily available ZnO, which has various applications, are explored. A composite of ZnO@RuO2 in a 10:1 molar ratio was synthesized using microwave processing of a precipitate. To enhance its catalytic properties, the composite was subsequently annealed at 300 and 600 °C. A detailed analysis of the crystal structure, morphology, optical and (photo)electrocatalytic properties of the processed 10ZnO@RuO2 catalyst particles was conducted. The catalytic activity of the prepared composites toward the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in 0.1 M NaOH and 0.1 M H2SO4 was investigated using linear sweep voltammetry (LSV). The measurements were taken both in the dark and under illumination after 60 minutes of exposure. To determine the intrinsic HER and OER activity of the studied catalyst, the LSV data were normalized by the electrochemical surface area (ECSA). Finally, the oxygen reduction reaction (ORR) activity of the catalysts was tested in both alkaline and acidic electrolytes.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia",
title = "ZnO@RuO2 composites: Cost-effective trifunctional electrocatalysts for enhanced OER, HER, and ORR activities in water electrolysis",
pages = "42-42",
url = "https://hdl.handle.net/21.15107/rcub_dais_15636"
}

Aleksić, K., Stojković Simatović, I.,& Marković, S.. (2023). ZnO@RuO2 composites: Cost-effective trifunctional electrocatalysts for enhanced OER, HER, and ORR activities in water electrolysis. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 42-42.
https://hdl.handle.net/21.15107/rcub_dais_15636

Aleksić K, Stojković Simatović I, Marković S. ZnO@RuO2 composites: Cost-effective trifunctional electrocatalysts for enhanced OER, HER, and ORR activities in water electrolysis. in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia. 2023;:42-42.
https://hdl.handle.net/21.15107/rcub_dais_15636 .

Aleksić, Katarina, Stojković Simatović, Ivana, Marković, Smilja, "ZnO@RuO2 composites: Cost-effective trifunctional electrocatalysts for enhanced OER, HER, and ORR activities in water electrolysis" in Program and the Book of abstracts / Twenty-first Young Researchers' Conference Materials Science and Engineering, November 29 – December 1, 2023, Belgrade, Serbia (2023):42-42,
https://hdl.handle.net/21.15107/rcub_dais_15636 .

TY  - CONF
AU  - Stanković, Ana
AU  - Aleksić, Katarina
AU  - Kratovac, Marija
AU  - Stojković Simatović, Ivana
AU  - Kraljić Rokvić, Marijana
AU  - Marković, Smilja
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14870
AB  - The release of pharmaceuticals in the environment represents a significant ecological problem due to their complex structure making them challenge to be decomposed and removed by standard waste-water treatment processes. Zinc oxide (ZnO) represents a semiconductor compound with exceptional optical and electrochemical properties, chemical and photochemical stability, nontoxicity, biocompatibility, etc. Due to their adjustable multifunctional properties, ZnO based materials have concerned general scientific and technological attention. Nowadays these materials are used for a range of applications in electronics, opto-electronics, biosensing, bioimaging, drug delivery, antimicrobial and anticancer agents, implants as well as sensing in environmental applications. The main object of this study was to improve efficiency of ZnO particles toward electrochemical sensing of water pollutants and electrocatalysis. In order to modify electrochemical properties, zinc oxide/graphene oxide (ZnO/GO) composites with different ZnO:GO weights ratio were prepared using a microwave (MW) assisted synthesis of precipitate. Two different amounts of GO (0.1 and 0.5 wt.%) were dispersed in 100 mL of distilled water. After stirring for 5 min an appropriate amount of ZnCl2 was added to the GO water dispersion. Subsequently, 20 mL of 1.75 M NaOH was added dropwise to the mixture with constant stirring. After being stirred at 50 C for 90 min in total, the as-prepared precipitate was microwave processed in a MW oven (2.45 GHz, 130 W) for 5 min. After cooling to room temperature, the precipitate was centrifuged and rinsed to remove the surface residues of the starting chemical solutions. The synthesized powder was dried in an oven at 80 C for 24 h. The particles crystal structure and phase composition were investigated by X-ray diffraction and Raman spectroscopy. The particles morphology was determined with FE–SEM. The optical properties were studied using UV–Vis DRS and PL spectroscopy. The electrochemical sensing activity of ZnO and ZnO/GO electrodes was tested for detection of chloramphenicol water solution whereas electrocatalytic activity was tested for water splitting when samples were used as anode materials and evaluated by linear sweep voltammetry in 0.1M NaOH and 0.1 M H2SO4 electrolytes. ZnO/GO electrodes were tested as-prepared and after in situ reduction of GO at -1.4 V vs. SCE in 0.1 M KCl. Electrochemical activity of prepared composites was correlated with the presence of GO and reduced GO particles.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023
T1  - Electrochemical detection of chloramphenicol drug based on ZnO and ZnO/graphene oxide composite nanoparticles
SP  - 155
EP  - 155
UR  - https://hdl.handle.net/21.15107/rcub_dais_14870
ER  - 

@conference{
author = "Stanković, Ana and Aleksić, Katarina and Kratovac, Marija and Stojković Simatović, Ivana and Kraljić Rokvić, Marijana and Marković, Smilja",
year = "2023",
abstract = "The release of pharmaceuticals in the environment represents a significant ecological problem due to their complex structure making them challenge to be decomposed and removed by standard waste-water treatment processes. Zinc oxide (ZnO) represents a semiconductor compound with exceptional optical and electrochemical properties, chemical and photochemical stability, nontoxicity, biocompatibility, etc. Due to their adjustable multifunctional properties, ZnO based materials have concerned general scientific and technological attention. Nowadays these materials are used for a range of applications in electronics, opto-electronics, biosensing, bioimaging, drug delivery, antimicrobial and anticancer agents, implants as well as sensing in environmental applications. The main object of this study was to improve efficiency of ZnO particles toward electrochemical sensing of water pollutants and electrocatalysis. In order to modify electrochemical properties, zinc oxide/graphene oxide (ZnO/GO) composites with different ZnO:GO weights ratio were prepared using a microwave (MW) assisted synthesis of precipitate. Two different amounts of GO (0.1 and 0.5 wt.%) were dispersed in 100 mL of distilled water. After stirring for 5 min an appropriate amount of ZnCl2 was added to the GO water dispersion. Subsequently, 20 mL of 1.75 M NaOH was added dropwise to the mixture with constant stirring. After being stirred at 50 C for 90 min in total, the as-prepared precipitate was microwave processed in a MW oven (2.45 GHz, 130 W) for 5 min. After cooling to room temperature, the precipitate was centrifuged and rinsed to remove the surface residues of the starting chemical solutions. The synthesized powder was dried in an oven at 80 C for 24 h. The particles crystal structure and phase composition were investigated by X-ray diffraction and Raman spectroscopy. The particles morphology was determined with FE–SEM. The optical properties were studied using UV–Vis DRS and PL spectroscopy. The electrochemical sensing activity of ZnO and ZnO/GO electrodes was tested for detection of chloramphenicol water solution whereas electrocatalytic activity was tested for water splitting when samples were used as anode materials and evaluated by linear sweep voltammetry in 0.1M NaOH and 0.1 M H2SO4 electrolytes. ZnO/GO electrodes were tested as-prepared and after in situ reduction of GO at -1.4 V vs. SCE in 0.1 M KCl. Electrochemical activity of prepared composites was correlated with the presence of GO and reduced GO particles.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023",
title = "Electrochemical detection of chloramphenicol drug based on ZnO and ZnO/graphene oxide composite nanoparticles",
pages = "155-155",
url = "https://hdl.handle.net/21.15107/rcub_dais_14870"
}

Stanković, A., Aleksić, K., Kratovac, M., Stojković Simatović, I., Kraljić Rokvić, M.,& Marković, S.. (2023). Electrochemical detection of chloramphenicol drug based on ZnO and ZnO/graphene oxide composite nanoparticles. in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023
Belgrade : Materials Research Society of Serbia., 155-155.
https://hdl.handle.net/21.15107/rcub_dais_14870

Stanković A, Aleksić K, Kratovac M, Stojković Simatović I, Kraljić Rokvić M, Marković S. Electrochemical detection of chloramphenicol drug based on ZnO and ZnO/graphene oxide composite nanoparticles. in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023. 2023;:155-155.
https://hdl.handle.net/21.15107/rcub_dais_14870 .

Stanković, Ana, Aleksić, Katarina, Kratovac, Marija, Stojković Simatović, Ivana, Kraljić Rokvić, Marijana, Marković, Smilja, "Electrochemical detection of chloramphenicol drug based on ZnO and ZnO/graphene oxide composite nanoparticles" in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023 (2023):155-155,
https://hdl.handle.net/21.15107/rcub_dais_14870 .

TY  - CONF
AU  - Aleksić, Katarina
AU  - Stojković Simatović, Ivana
AU  - Marković, Smilja
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14872
AB  - The demand for affordable and accessible catalysts to replace the expensive and scarce resourced platinum group metals (PGMs) has become increasingly vital. Since they combine different properties such as electrochemical activities, chemical and photochemical stability, non-toxicity, etc. ZnO-based materials have been examined for potential applications in electronics, optoelectronics, sensing in environmental applications as well as catalysis. This study focused on cost reduction of PGM materials by introducing RuO2 as a substitute for Ru and decreasing the amount of RuO2 through the incorporation of abundant and versatile ZnO. A composite of ZnO/RuO2 in a 10:1 molar ratio was synthesized using a microwave processing of a prepcipitate. To enhance its catalytic properties, the composite was subsequently annealed at 300 and 600 C. The physicochemical characteristics of the ZnO/RuO2 composites were analyzed using X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) spectroscopy. Furthermore, the electrochemical activity of the samples was assessed through linear sweep voltammetry in both acidic (0.1 M H2SO4) and alkaline (0.1 M NaOH) electrolytes. Remarkably, the ZnO/RuO2 composites exhibited excellent bifunctional catalytic activity for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in both types of electrolytes.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023
T1  - ZnO/RuO2 nanostructured composites with enhanced bifunctional photo-electro catalytic activity toward water splitting
SP  - 82
EP  - 82
UR  - https://hdl.handle.net/21.15107/rcub_dais_14872
ER  - 

@conference{
author = "Aleksić, Katarina and Stojković Simatović, Ivana and Marković, Smilja",
year = "2023",
abstract = "The demand for affordable and accessible catalysts to replace the expensive and scarce resourced platinum group metals (PGMs) has become increasingly vital. Since they combine different properties such as electrochemical activities, chemical and photochemical stability, non-toxicity, etc. ZnO-based materials have been examined for potential applications in electronics, optoelectronics, sensing in environmental applications as well as catalysis. This study focused on cost reduction of PGM materials by introducing RuO2 as a substitute for Ru and decreasing the amount of RuO2 through the incorporation of abundant and versatile ZnO. A composite of ZnO/RuO2 in a 10:1 molar ratio was synthesized using a microwave processing of a prepcipitate. To enhance its catalytic properties, the composite was subsequently annealed at 300 and 600 C. The physicochemical characteristics of the ZnO/RuO2 composites were analyzed using X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) spectroscopy. Furthermore, the electrochemical activity of the samples was assessed through linear sweep voltammetry in both acidic (0.1 M H2SO4) and alkaline (0.1 M NaOH) electrolytes. Remarkably, the ZnO/RuO2 composites exhibited excellent bifunctional catalytic activity for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in both types of electrolytes.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023",
title = "ZnO/RuO2 nanostructured composites with enhanced bifunctional photo-electro catalytic activity toward water splitting",
pages = "82-82",
url = "https://hdl.handle.net/21.15107/rcub_dais_14872"
}

Aleksić, K., Stojković Simatović, I.,& Marković, S.. (2023). ZnO/RuO2 nanostructured composites with enhanced bifunctional photo-electro catalytic activity toward water splitting. in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023
Belgrade : Materials Research Society of Serbia., 82-82.
https://hdl.handle.net/21.15107/rcub_dais_14872

Aleksić K, Stojković Simatović I, Marković S. ZnO/RuO2 nanostructured composites with enhanced bifunctional photo-electro catalytic activity toward water splitting. in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023. 2023;:82-82.
https://hdl.handle.net/21.15107/rcub_dais_14872 .

Aleksić, Katarina, Stojković Simatović, Ivana, Marković, Smilja, "ZnO/RuO2 nanostructured composites with enhanced bifunctional photo-electro catalytic activity toward water splitting" in Programme and The Book of Abstracts / Twenty-fourth Annual Conference YUCOMAT 2023, Herceg Novi, Montenegro, September 4 - 8, 2023 (2023):82-82,
https://hdl.handle.net/21.15107/rcub_dais_14872 .

TY  - CONF
AU  - Marković, Smilja
AU  - Stanković, Ana
AU  - Aleksić, Katarina
AU  - Veselinović, Ljiljana
AU  - Stojković Simatović, Ivana
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/15154
AB  - Due to their tunable multifunctional properties zinc oxide (ZnO) based materials have attracted extensive scientific and technological attention. Since they combine different properties such as electrochemical activities, chemical and photochemical stability, nontoxicity, biocompatibility, etc. ZnO-based materials have been used in electronics, optoelectronics, biosensing, bioimaging, drug and gene delivery, implants, antimicrobial and anticancer agents. Successful application of ZnO as photoelectrocatalysts arises from its wide band gap (3.37 eV) which can be easily adjusted by different approaches such as: metal and non-metal ion doping, hydrogenation, introducing of crystalline defects, modifying particle morphology and surface chemistry. During the years, to synthesize zinc oxide (ZnO) nanoparticles with improved visible light absorption we have used a fast and environmentally-friendly microwave processing of a precipitate which enable formation of crystalline defects. To further enhance photo(electro)catalytic properties we have employed approaches such as: (1) the incorporation of iron ions into the crystal structure (Zn1-xFexO), (2) sensitization of the particles’ surface with cetyltrimethylammonium bromide, Pluronic F127 and polyethylene oxide, and (3) composites with ruthenium oxide (ZnO/RuO2) and graphene oxide (ZnO/GO and ZnO/rGO). To correlate structural and functional properties, prepared materials were characterized using XRD, FTIR, Raman, UV-Vis DRS, and PL spectroscopy, also FESEM; photocatalytic activity of the samples were tested toward decolorization of methylene blue, while their photoelectrochemical activity for water splitting were tested through linear sweep voltammetry in different electrolytes.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023.
T1  - Approaches to improve photo(electro)catalytic properties of ZnO-based materials
SP  - 68
EP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_dais_15154
ER  - 

@conference{
author = "Marković, Smilja and Stanković, Ana and Aleksić, Katarina and Veselinović, Ljiljana and Stojković Simatović, Ivana",
year = "2023",
abstract = "Due to their tunable multifunctional properties zinc oxide (ZnO) based materials have attracted extensive scientific and technological attention. Since they combine different properties such as electrochemical activities, chemical and photochemical stability, nontoxicity, biocompatibility, etc. ZnO-based materials have been used in electronics, optoelectronics, biosensing, bioimaging, drug and gene delivery, implants, antimicrobial and anticancer agents. Successful application of ZnO as photoelectrocatalysts arises from its wide band gap (3.37 eV) which can be easily adjusted by different approaches such as: metal and non-metal ion doping, hydrogenation, introducing of crystalline defects, modifying particle morphology and surface chemistry. During the years, to synthesize zinc oxide (ZnO) nanoparticles with improved visible light absorption we have used a fast and environmentally-friendly microwave processing of a precipitate which enable formation of crystalline defects. To further enhance photo(electro)catalytic properties we have employed approaches such as: (1) the incorporation of iron ions into the crystal structure (Zn1-xFexO), (2) sensitization of the particles’ surface with cetyltrimethylammonium bromide, Pluronic F127 and polyethylene oxide, and (3) composites with ruthenium oxide (ZnO/RuO2) and graphene oxide (ZnO/GO and ZnO/rGO). To correlate structural and functional properties, prepared materials were characterized using XRD, FTIR, Raman, UV-Vis DRS, and PL spectroscopy, also FESEM; photocatalytic activity of the samples were tested toward decolorization of methylene blue, while their photoelectrochemical activity for water splitting were tested through linear sweep voltammetry in different electrolytes.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023.",
title = "Approaches to improve photo(electro)catalytic properties of ZnO-based materials",
pages = "68-69",
url = "https://hdl.handle.net/21.15107/rcub_dais_15154"
}

Marković, S., Stanković, A., Aleksić, K., Veselinović, L.,& Stojković Simatović, I.. (2023). Approaches to improve photo(electro)catalytic properties of ZnO-based materials. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023.
Belgrade : Serbian Ceramic Society., 68-69.
https://hdl.handle.net/21.15107/rcub_dais_15154

Marković S, Stanković A, Aleksić K, Veselinović L, Stojković Simatović I. Approaches to improve photo(electro)catalytic properties of ZnO-based materials. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023.. 2023;:68-69.
https://hdl.handle.net/21.15107/rcub_dais_15154 .

Marković, Smilja, Stanković, Ana, Aleksić, Katarina, Veselinović, Ljiljana, Stojković Simatović, Ivana, "Approaches to improve photo(electro)catalytic properties of ZnO-based materials" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application XI New Frontiers in Multifunctional Material Science and Processing, Serbian Academy of Sciences and Art Serbia, Belgrade,18-20.September 2023. (2023):68-69,
https://hdl.handle.net/21.15107/rcub_dais_15154 .

TY  - JOUR
AU  - Aleksić, Katarina
AU  - Stojković Simatović, Ivana
AU  - Stanković, Ana
AU  - Veselinović, Ljiljana
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Radmilović, Nadežda
AU  - Rajić, Vladimir
AU  - Škapin, Srečo Davor
AU  - Mančić, Lidija
AU  - Marković, Smilja
PY  - 2023
UR  - https://dais.sanu.ac.rs/123456789/14554
AB  - Catalytic materials are the greatest challenge for the commercial application of water electrolysis (WEs) and fuel cells (FCs) as clean energy technologies. There is a need to find an alternative to expensive and unavailable platinum group metal (PGM) catalysts. This study aimed to reduce the cost of PGM materials by replacing Ru with RuO2 and lowering the amount of RuO2 by adding abundant and multifunctional ZnO. A ZnO@RuO2 composite in a 10:1 molar ratio was synthesized by microwave processing of a precipitate as a green, low-cost, and fast method, and then annealed at 300°C and 600°C to improve the catalytic properties. The physicochemical properties of the ZnO@RuO2 composites were investigated by X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) spectroscopy. The electrochemical activity of the samples was investigated by linear sweep voltammetry in acidic and alkaline electrolytes. We observed good bifunctional catalytic activity of the ZnO@RuO2 composites toward HER and OER in both electrolytes. The improved bifunctional catalytic activity of the ZnO@RuO2 composite by annealing was discussed and attributed to the reduced number of bulk oxygen vacancies and the increased number of established heterojunctions.
PB  - Frontiers Media SA
T2  - Frontiers in Chemistry
T1  - Enhancement of ZnO@RuO2 bifunctional photo-electro catalytic activity toward water splitting
VL  - 11
DO  - 10.3389/fchem.2023.1173910
UR  - https://hdl.handle.net/21.15107/rcub_dais_14554
ER  - 

@article{
author = "Aleksić, Katarina and Stojković Simatović, Ivana and Stanković, Ana and Veselinović, Ljiljana and Stojadinović, Stevan and Rac, Vladislav and Radmilović, Nadežda and Rajić, Vladimir and Škapin, Srečo Davor and Mančić, Lidija and Marković, Smilja",
year = "2023",
abstract = "Catalytic materials are the greatest challenge for the commercial application of water electrolysis (WEs) and fuel cells (FCs) as clean energy technologies. There is a need to find an alternative to expensive and unavailable platinum group metal (PGM) catalysts. This study aimed to reduce the cost of PGM materials by replacing Ru with RuO2 and lowering the amount of RuO2 by adding abundant and multifunctional ZnO. A ZnO@RuO2 composite in a 10:1 molar ratio was synthesized by microwave processing of a precipitate as a green, low-cost, and fast method, and then annealed at 300°C and 600°C to improve the catalytic properties. The physicochemical properties of the ZnO@RuO2 composites were investigated by X-ray powder diffraction (XRD), Raman and Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), UV-Vis diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) spectroscopy. The electrochemical activity of the samples was investigated by linear sweep voltammetry in acidic and alkaline electrolytes. We observed good bifunctional catalytic activity of the ZnO@RuO2 composites toward HER and OER in both electrolytes. The improved bifunctional catalytic activity of the ZnO@RuO2 composite by annealing was discussed and attributed to the reduced number of bulk oxygen vacancies and the increased number of established heterojunctions.",
publisher = "Frontiers Media SA",
journal = "Frontiers in Chemistry",
title = "Enhancement of ZnO@RuO2 bifunctional photo-electro catalytic activity toward water splitting",
volume = "11",
doi = "10.3389/fchem.2023.1173910",
url = "https://hdl.handle.net/21.15107/rcub_dais_14554"
}

Aleksić, K., Stojković Simatović, I., Stanković, A., Veselinović, L., Stojadinović, S., Rac, V., Radmilović, N., Rajić, V., Škapin, S. D., Mančić, L.,& Marković, S.. (2023). Enhancement of ZnO@RuO2 bifunctional photo-electro catalytic activity toward water splitting. in Frontiers in Chemistry
Frontiers Media SA., 11.
https://doi.org/10.3389/fchem.2023.1173910
https://hdl.handle.net/21.15107/rcub_dais_14554

Aleksić K, Stojković Simatović I, Stanković A, Veselinović L, Stojadinović S, Rac V, Radmilović N, Rajić V, Škapin SD, Mančić L, Marković S. Enhancement of ZnO@RuO2 bifunctional photo-electro catalytic activity toward water splitting. in Frontiers in Chemistry. 2023;11.
doi:10.3389/fchem.2023.1173910
https://hdl.handle.net/21.15107/rcub_dais_14554 .

Aleksić, Katarina, Stojković Simatović, Ivana, Stanković, Ana, Veselinović, Ljiljana, Stojadinović, Stevan, Rac, Vladislav, Radmilović, Nadežda, Rajić, Vladimir, Škapin, Srečo Davor, Mančić, Lidija, Marković, Smilja, "Enhancement of ZnO@RuO2 bifunctional photo-electro catalytic activity toward water splitting" in Frontiers in Chemistry, 11 (2023),
https://doi.org/10.3389/fchem.2023.1173910 .,
https://hdl.handle.net/21.15107/rcub_dais_14554 .

TY  - CONF
AU  - Aleksić, Katarina
AU  - Stanković, Ana
AU  - Veselinović, Ljiljana
AU  - Stojković Simatović, Ivana
AU  - Marković, Smilja
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13504
AB  - Due to their biocompatibility, chemical stability, high isoelectric point, electrochemical activity, high electron mobility and ease of synthesis by diverse methods, ZnO-based materials have attracted much interest as materials for biosensors. Its unique properties allow it to be used for single-molecule detection and determining various biomolecules, so it can be potentially utilized as biosensor for medical diagnosis. The materials being used as biosensors require special characteristics including high corrosion resistance. The aim of this research was to investigate biocorrosion properties of ZnO materials in Ringer’s physiological solution as a function of immersion time. ZnO powders were prepared by microwave (MW) processing of a precipitate in the presence of a different amount (5, 10 and 20 wt.%) of two different surfactants, CA and CTAB. The particles crystallinity and phase purity were investigated by X-ray powder diffraction (XRD) and Raman spectroscopy. Fourier-transform infrared (FTIR) spectroscopy was used to analyze surface chemistry. The particles morphology and textural properties were observed with field emission scanning electron microscopy (FE-SEM) and BET. The biocorrosion activity of the materials was measured by potentiodynamic polarization technique. Prepared samples were immersed in Ringer solution for different immersion times ranging from 30 min to 7 days. We found that all examined ZnO samples hаve low biocorrosion activity. Slight differences in biocorrosion activity between the samples are determined by particles morphology, textural properties and surface chemistry influenced by used surfactants.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Programme and the Book of Abstracts / Twentieth Young Researchers' Conference Materials Science and Engineering, November 30 - December 2, 2022, Belgrade, Serbia
T1  - The biocorrosion activity of ZnO-based materials as biosensors
SP  - 39
EP  - 39
UR  - https://hdl.handle.net/21.15107/rcub_dais_13504
ER  - 

@conference{
author = "Aleksić, Katarina and Stanković, Ana and Veselinović, Ljiljana and Stojković Simatović, Ivana and Marković, Smilja",
year = "2022",
abstract = "Due to their biocompatibility, chemical stability, high isoelectric point, electrochemical activity, high electron mobility and ease of synthesis by diverse methods, ZnO-based materials have attracted much interest as materials for biosensors. Its unique properties allow it to be used for single-molecule detection and determining various biomolecules, so it can be potentially utilized as biosensor for medical diagnosis. The materials being used as biosensors require special characteristics including high corrosion resistance. The aim of this research was to investigate biocorrosion properties of ZnO materials in Ringer’s physiological solution as a function of immersion time. ZnO powders were prepared by microwave (MW) processing of a precipitate in the presence of a different amount (5, 10 and 20 wt.%) of two different surfactants, CA and CTAB. The particles crystallinity and phase purity were investigated by X-ray powder diffraction (XRD) and Raman spectroscopy. Fourier-transform infrared (FTIR) spectroscopy was used to analyze surface chemistry. The particles morphology and textural properties were observed with field emission scanning electron microscopy (FE-SEM) and BET. The biocorrosion activity of the materials was measured by potentiodynamic polarization technique. Prepared samples were immersed in Ringer solution for different immersion times ranging from 30 min to 7 days. We found that all examined ZnO samples hаve low biocorrosion activity. Slight differences in biocorrosion activity between the samples are determined by particles morphology, textural properties and surface chemistry influenced by used surfactants.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Programme and the Book of Abstracts / Twentieth Young Researchers' Conference Materials Science and Engineering, November 30 - December 2, 2022, Belgrade, Serbia",
title = "The biocorrosion activity of ZnO-based materials as biosensors",
pages = "39-39",
url = "https://hdl.handle.net/21.15107/rcub_dais_13504"
}

Aleksić, K., Stanković, A., Veselinović, L., Stojković Simatović, I.,& Marković, S.. (2022). The biocorrosion activity of ZnO-based materials as biosensors. in Programme and the Book of Abstracts / Twentieth Young Researchers' Conference Materials Science and Engineering, November 30 - December 2, 2022, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 39-39.
https://hdl.handle.net/21.15107/rcub_dais_13504

Aleksić K, Stanković A, Veselinović L, Stojković Simatović I, Marković S. The biocorrosion activity of ZnO-based materials as biosensors. in Programme and the Book of Abstracts / Twentieth Young Researchers' Conference Materials Science and Engineering, November 30 - December 2, 2022, Belgrade, Serbia. 2022;:39-39.
https://hdl.handle.net/21.15107/rcub_dais_13504 .

Aleksić, Katarina, Stanković, Ana, Veselinović, Ljiljana, Stojković Simatović, Ivana, Marković, Smilja, "The biocorrosion activity of ZnO-based materials as biosensors" in Programme and the Book of Abstracts / Twentieth Young Researchers' Conference Materials Science and Engineering, November 30 - December 2, 2022, Belgrade, Serbia (2022):39-39,
https://hdl.handle.net/21.15107/rcub_dais_13504 .

TY  - CONF
AU  - Stanković, Ana
AU  - Filipović, Suzana
AU  - Veselinović, Ljiljana
AU  - Aleksić, Katarina
AU  - Stojković Simatović, Ivana
AU  - Škapin, Srečo Davor
AU  - Marković, Smilja
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13628
AB  - Conversion of solar energy into hydrogen energy via the water-splitting process, assisted by photo-semiconductor catalysts, is one of the most promising technologies for the future because large quantities of hydrogen can be generated in a clean and sustainable manner. Zinc oxide (ZnO) represents one of the most investigated photocatalyst. Its ability to overcome the limitations of pristine ZnO through enhanced visible light absorption and reduced recombination of photogenerated charge carriers have gathered the attention of the many research groups. Numerous studies enabled understanding its greater activities and most studies reveal that reactive oxygen species (ROS), oxygen vacancies (Ov) and zinc interstitials (Zni) are responsible for the enhanced photoactivity. In fact, different factors like defect concentration, defect location, valence and conduction band levels play a key role in the working mechanisms of ZnO material. Materials with the perovskite crystal structure such as BaTiO3 (BT) and BaTi1–XSnXO3 (BTS) found application in the construction of the active layer of the solar cell, in which the photogenerative electrons are generated. The environmental instability of perovskite solar cells caused by the ultraviolet photocatalytic effect of metal oxide layers is a critical issue that must be solved. Possible solution with improved environmental stability can be synthesis of ZnO composite heterojunction perovskite solar cells. In this study photo(electro) catalytic properties of: BT and BTS were compared with those of ZnO@BT and ZnO@BTS, respectively. In both cases the ZnO@BT and ZnO@BTS composite materials revealed enhanced photo(electro) catalytic activity as compared to the pristine BT and BTS materials. In order to investigate the origin of the enhancement, the pristine metal oxides and composites were characterized using a variety of techniques, including X-ray diffraction (XRD), Raman, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE SEM), UV-Vis diffuse reflectance spectroscopy and linear voltammetry process.
PB  - Belgrade : Serbian Ceramic Society
C3  - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.
T1  - ZnO-based composite materials with improved photo(electro) catalytic properties
SP  - 85
EP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_dais_13628
ER  - 

@conference{
author = "Stanković, Ana and Filipović, Suzana and Veselinović, Ljiljana and Aleksić, Katarina and Stojković Simatović, Ivana and Škapin, Srečo Davor and Marković, Smilja",
year = "2022",
abstract = "Conversion of solar energy into hydrogen energy via the water-splitting process, assisted by photo-semiconductor catalysts, is one of the most promising technologies for the future because large quantities of hydrogen can be generated in a clean and sustainable manner. Zinc oxide (ZnO) represents one of the most investigated photocatalyst. Its ability to overcome the limitations of pristine ZnO through enhanced visible light absorption and reduced recombination of photogenerated charge carriers have gathered the attention of the many research groups. Numerous studies enabled understanding its greater activities and most studies reveal that reactive oxygen species (ROS), oxygen vacancies (Ov) and zinc interstitials (Zni) are responsible for the enhanced photoactivity. In fact, different factors like defect concentration, defect location, valence and conduction band levels play a key role in the working mechanisms of ZnO material. Materials with the perovskite crystal structure such as BaTiO3 (BT) and BaTi1–XSnXO3 (BTS) found application in the construction of the active layer of the solar cell, in which the photogenerative electrons are generated. The environmental instability of perovskite solar cells caused by the ultraviolet photocatalytic effect of metal oxide layers is a critical issue that must be solved. Possible solution with improved environmental stability can be synthesis of ZnO composite heterojunction perovskite solar cells. In this study photo(electro) catalytic properties of: BT and BTS were compared with those of ZnO@BT and ZnO@BTS, respectively. In both cases the ZnO@BT and ZnO@BTS composite materials revealed enhanced photo(electro) catalytic activity as compared to the pristine BT and BTS materials. In order to investigate the origin of the enhancement, the pristine metal oxides and composites were characterized using a variety of techniques, including X-ray diffraction (XRD), Raman, Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE SEM), UV-Vis diffuse reflectance spectroscopy and linear voltammetry process.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.",
title = "ZnO-based composite materials with improved photo(electro) catalytic properties",
pages = "85-86",
url = "https://hdl.handle.net/21.15107/rcub_dais_13628"
}

Stanković, A., Filipović, S., Veselinović, L., Aleksić, K., Stojković Simatović, I., Škapin, S. D.,& Marković, S.. (2022). ZnO-based composite materials with improved photo(electro) catalytic properties. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.
Belgrade : Serbian Ceramic Society., 85-86.
https://hdl.handle.net/21.15107/rcub_dais_13628

Stanković A, Filipović S, Veselinović L, Aleksić K, Stojković Simatović I, Škapin SD, Marković S. ZnO-based composite materials with improved photo(electro) catalytic properties. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.. 2022;:85-86.
https://hdl.handle.net/21.15107/rcub_dais_13628 .

Stanković, Ana, Filipović, Suzana, Veselinović, Ljiljana, Aleksić, Katarina, Stojković Simatović, Ivana, Škapin, Srečo Davor, Marković, Smilja, "ZnO-based composite materials with improved photo(electro) catalytic properties" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022. (2022):85-86,
https://hdl.handle.net/21.15107/rcub_dais_13628 .

TY  - CONF
AU  - Aleksić, Katarina
AU  - Stanković, Ana
AU  - Stojković Simatović, Ivana
AU  - Marković, Smilja
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13682
AB  - Over the last decade, due to its numerous unique features that can achieve single biomolecule detection, zinc oxide have been examined as potential electrochemical biosensor for medical diagnosis. Previous studies proved success of ZnO-based materials in determining various biomolecules such as glucose, cholesterol, uric acid, etc. The materials being used as biosensors require special characteristics including high corrosion resistance. The main goal of this study was to examine biocorrosion characteristics of ZnO materials in Ringer’s physiological solution as a function of immersion time. Six different ZnO nanostructured powders were synthesized by microwave processing with an aid of citric acid and CTAB in different weight amount (5, 10, and 20 wt.%). To comprehend the influence of physicochemical characteristics of ZnO samples on biocorrosion, decisive features such as the crystal structure, morphology, textural properties, and surface chemistry were systematically investigated and correlated with biocorrosion activity. The biocorrosion activity of the samples was measured by potentiodynamic polarization technique. The measurements were performed on a potentiostat using a conventional three-electrode cell and a Ringer’s solution as the electrolyte. Platinum foil and a standard calomel electrode (SCE) were used as the counter and the reference electrode, respectively, while FTO glass was used as the working electrode. The working electrode was coated with a thin film of ZnO ink prepared by mixing of a ZnO powder as an active material and Nafion solution as a binder. Prepared specimens were immersed in 100 ml of Ringer’s solution for different immersion times ranging from 30 min to 7 days. The immersed specimens were then characterized by potentiodynamic polarization techniques in the potential range from -0.2 to +0.3 V vs SCE, at the scan rate of 0.1 mVs-1. We found that all examined ZnO samples has low biocorrosion activity. Slight differences in biocorrosion activity between the samples are determined by particles morphology, textural properties and surface chemistry influenced by used surfactants.
PB  - DECHEMA, Gesellschaft für Chemische Technik und Biotechnologie e.V.
C3  - EUROCORR 2022 - European Corrosion Congress: Corrosion in a Changing World - Energy, Mobility, Digitalization, 28 August - 1 September 2022, Berlin, Germany: Abstracts / Extended papers for posters /
T1  - ZnO-based nanostructured electrodes for biosensors: Corrosion behavior in Ringer’s physiological solution
UR  - https://hdl.handle.net/21.15107/rcub_dais_13682
ER  - 

@conference{
author = "Aleksić, Katarina and Stanković, Ana and Stojković Simatović, Ivana and Marković, Smilja",
year = "2022",
abstract = "Over the last decade, due to its numerous unique features that can achieve single biomolecule detection, zinc oxide have been examined as potential electrochemical biosensor for medical diagnosis. Previous studies proved success of ZnO-based materials in determining various biomolecules such as glucose, cholesterol, uric acid, etc. The materials being used as biosensors require special characteristics including high corrosion resistance. The main goal of this study was to examine biocorrosion characteristics of ZnO materials in Ringer’s physiological solution as a function of immersion time. Six different ZnO nanostructured powders were synthesized by microwave processing with an aid of citric acid and CTAB in different weight amount (5, 10, and 20 wt.%). To comprehend the influence of physicochemical characteristics of ZnO samples on biocorrosion, decisive features such as the crystal structure, morphology, textural properties, and surface chemistry were systematically investigated and correlated with biocorrosion activity. The biocorrosion activity of the samples was measured by potentiodynamic polarization technique. The measurements were performed on a potentiostat using a conventional three-electrode cell and a Ringer’s solution as the electrolyte. Platinum foil and a standard calomel electrode (SCE) were used as the counter and the reference electrode, respectively, while FTO glass was used as the working electrode. The working electrode was coated with a thin film of ZnO ink prepared by mixing of a ZnO powder as an active material and Nafion solution as a binder. Prepared specimens were immersed in 100 ml of Ringer’s solution for different immersion times ranging from 30 min to 7 days. The immersed specimens were then characterized by potentiodynamic polarization techniques in the potential range from -0.2 to +0.3 V vs SCE, at the scan rate of 0.1 mVs-1. We found that all examined ZnO samples has low biocorrosion activity. Slight differences in biocorrosion activity between the samples are determined by particles morphology, textural properties and surface chemistry influenced by used surfactants.",
publisher = "DECHEMA, Gesellschaft für Chemische Technik und Biotechnologie e.V.",
journal = "EUROCORR 2022 - European Corrosion Congress: Corrosion in a Changing World - Energy, Mobility, Digitalization, 28 August - 1 September 2022, Berlin, Germany: Abstracts / Extended papers for posters /",
title = "ZnO-based nanostructured electrodes for biosensors: Corrosion behavior in Ringer’s physiological solution",
url = "https://hdl.handle.net/21.15107/rcub_dais_13682"
}

Aleksić, K., Stanković, A., Stojković Simatović, I.,& Marković, S.. (2022). ZnO-based nanostructured electrodes for biosensors: Corrosion behavior in Ringer’s physiological solution. in EUROCORR 2022 - European Corrosion Congress: Corrosion in a Changing World - Energy, Mobility, Digitalization, 28 August - 1 September 2022, Berlin, Germany: Abstracts / Extended papers for posters /
DECHEMA, Gesellschaft für Chemische Technik und Biotechnologie e.V...
https://hdl.handle.net/21.15107/rcub_dais_13682

Aleksić K, Stanković A, Stojković Simatović I, Marković S. ZnO-based nanostructured electrodes for biosensors: Corrosion behavior in Ringer’s physiological solution. in EUROCORR 2022 - European Corrosion Congress: Corrosion in a Changing World - Energy, Mobility, Digitalization, 28 August - 1 September 2022, Berlin, Germany: Abstracts / Extended papers for posters /. 2022;.
https://hdl.handle.net/21.15107/rcub_dais_13682 .

Aleksić, Katarina, Stanković, Ana, Stojković Simatović, Ivana, Marković, Smilja, "ZnO-based nanostructured electrodes for biosensors: Corrosion behavior in Ringer’s physiological solution" in EUROCORR 2022 - European Corrosion Congress: Corrosion in a Changing World - Energy, Mobility, Digitalization, 28 August - 1 September 2022, Berlin, Germany: Abstracts / Extended papers for posters / (2022),
https://hdl.handle.net/21.15107/rcub_dais_13682 .

TY  - CONF
AU  - Aleksić, Katarina
AU  - Supić, Ivan
AU  - Stojković Simatović, Ivana
AU  - Stanković, Ana
AU  - Marković, Smilja
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/12274
AB  - The aim of this research was to improve photo(electro)catalytic properties of BaTi1-xSnx (BTS, x = 0, 0.05, 0.10) powders. For that purpose we employed ZnO to prepare ZnO@BTS composite. In situ microwave processing of a ZnO precipitate on previously synthesized BTS particles was used to produce ZnO@BTS composites. The phase composition and crystal structure of BTS, ZnO and ZnO@BTS were examined by X-ray powder diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). The powders particles morphology was investigated by field emission scanning electron microscopy (FESEM). The optical properties were studied using UV-Vis diffuse reflectance (DRS) and photoluminescence spectroscopy (PL). Linear voltammetry was used to examine the photoelectrochemical properties of the materials. Photocatalytic properties were tested based on the decolorization of methylene blue (MB) dye in the presence of powder particles, under the influence of simulated sunlight radiation. BTS powders have good electron transfer properties, which has been shown in their function as electrocatalysts, where they have shown better properties than ZnO and ZnO@BTS composites. In contrast, they showed poor photocatalytic efficacy. The precipitation of ZnO particles on BTS, by the method of microwave processing,
significantly improves the photocatalytic efficiency of the formed composites, concerning the starting BTS powders. Among the composites, ZnO@BT composite proved to be the most effective photocatalyst.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia
T1  - Investigation of photo(electro)catalytic efficiency of BaTi1-xSnx, ZnO and ZnO@BaTi1-xSnx (x = 0, 0.05, 0.10) powders
SP  - 72
EP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_dais_12274
ER  - 

@conference{
author = "Aleksić, Katarina and Supić, Ivan and Stojković Simatović, Ivana and Stanković, Ana and Marković, Smilja",
year = "2021",
abstract = "The aim of this research was to improve photo(electro)catalytic properties of BaTi1-xSnx (BTS, x = 0, 0.05, 0.10) powders. For that purpose we employed ZnO to prepare ZnO@BTS composite. In situ microwave processing of a ZnO precipitate on previously synthesized BTS particles was used to produce ZnO@BTS composites. The phase composition and crystal structure of BTS, ZnO and ZnO@BTS were examined by X-ray powder diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). The powders particles morphology was investigated by field emission scanning electron microscopy (FESEM). The optical properties were studied using UV-Vis diffuse reflectance (DRS) and photoluminescence spectroscopy (PL). Linear voltammetry was used to examine the photoelectrochemical properties of the materials. Photocatalytic properties were tested based on the decolorization of methylene blue (MB) dye in the presence of powder particles, under the influence of simulated sunlight radiation. BTS powders have good electron transfer properties, which has been shown in their function as electrocatalysts, where they have shown better properties than ZnO and ZnO@BTS composites. In contrast, they showed poor photocatalytic efficacy. The precipitation of ZnO particles on BTS, by the method of microwave processing,
significantly improves the photocatalytic efficiency of the formed composites, concerning the starting BTS powders. Among the composites, ZnO@BT composite proved to be the most effective photocatalyst.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia",
title = "Investigation of photo(electro)catalytic efficiency of BaTi1-xSnx, ZnO and ZnO@BaTi1-xSnx (x = 0, 0.05, 0.10) powders",
pages = "72-72",
url = "https://hdl.handle.net/21.15107/rcub_dais_12274"
}

Aleksić, K., Supić, I., Stojković Simatović, I., Stanković, A.,& Marković, S.. (2021). Investigation of photo(electro)catalytic efficiency of BaTi1-xSnx, ZnO and ZnO@BaTi1-xSnx (x = 0, 0.05, 0.10) powders. in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 72-72.
https://hdl.handle.net/21.15107/rcub_dais_12274

Aleksić K, Supić I, Stojković Simatović I, Stanković A, Marković S. Investigation of photo(electro)catalytic efficiency of BaTi1-xSnx, ZnO and ZnO@BaTi1-xSnx (x = 0, 0.05, 0.10) powders. in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia. 2021;:72-72.
https://hdl.handle.net/21.15107/rcub_dais_12274 .

Aleksić, Katarina, Supić, Ivan, Stojković Simatović, Ivana, Stanković, Ana, Marković, Smilja, "Investigation of photo(electro)catalytic efficiency of BaTi1-xSnx, ZnO and ZnO@BaTi1-xSnx (x = 0, 0.05, 0.10) powders" in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia (2021):72-72,
https://hdl.handle.net/21.15107/rcub_dais_12274 .

TY  - JOUR
AU  - Aleksić, Katarina
AU  - Janošević Ležaić, Aleksandra
AU  - Gavrilov, Nemanja M.
PY  - 2020
UR  - https://dais.sanu.ac.rs/123456789/16172
AB  - Novi materijali za primenu u elektrohemijskim kondenzatorima razvijaju se u različitim pravcima: ugljenične nanocevi, grafen, aktivirani ugljenici, templirani porozni ugljenici, a sve sa ciljem poboljšanja njihovih karakteristika kroz povećanje kapaciteta dvojnog električnog sloja i/ili pseudokapacitivnih faradejskih procesa. Cilj ovog rada bio je određivanje kapaciteta za seriju ugljeničnih materijala metodom ciklične voltametrije pri različitim brzinama polarizacije, kao i razdvajanje doprinosa dvojnog električnog sloja i pseudokapacitivnosti ukupnoj vrednosti kapaciteta elektrohemijskih kondenzatora. Ispitivani materijali uključuju: karbonizovani nanostrukturni polianilin (C-PANI), karbonizovani polianilin dopiran 2,2-difenil-1-pikrilhidrazilom (C-DPPH) i aktivni ugalj (AC). Njihove karakteristike ispitane su u 6M KOH i 0,5M H2SO4, a kapacitivna svojstva pomenutih materijala uspešno su razdvojena primenom Trasatijeve (Trasatti) i Danove (Dunn) metode. Pokazano je da aktivni ugalj, bez obzira što nema najveću vrednost specifičnog kapaciteta u svim elektrolitima, ipak ima najveću retenciju kapaciteta i da bi bio najpogodniji za primenu kao elektrodni materijal u odnosu na ispitivane materijale.
AB  - New materials for use in electrochemical capacitors are being developed in different directions: carbon nanotubes, graphene, activated carbon, templated porous carbon, all with the aim of improving their properties by increasing the capacitance of the double electric layer and/or pseudocapacitive faradaic processes. The aim of this work was to determine the capacitance of a series of carbon materials using cyclic voltammetry at different polarization rates, as well as to separate the contribution of the electric double layer capacitance and pseudo-capacitance to the total value of the capacitance. Materials that were tested include: carbonized nanostructured polyaniline (C-PANI), carbonated polyaniline doped with 2,2-diphenyl-1-picrylhydrazyl (C-DPPH) and activated carbon (AC). Their characteristics were tested in 6M KOH and 0.5M H2SO4, and the capacitance properties of the mentioned materials were successfully separated using Trasatti and Dunn methods. It has been shown that among the tested materials, activated carbon has the highest capacity retention, and it would be the best suited for use as electrode material, although it doesn't have the highest specific capacitance value in all electrolytes.
PB  - Beograd : Savez inženjera i tehničara Srbije
T2  - Tehnika
T1  - Izračunavanje udela pseudo-kapaciteta i dvojnog električnog sloja kod elektrohemijskih kondenzatora na bazi karbonizovanih ugljenika
SP  - 135
EP  - 140
VL  - 75
IS  - 2
DO  - 10.5937/tehnika2002135A
UR  - https://hdl.handle.net/21.15107/rcub_dais_16172
ER  - 

@article{
author = "Aleksić, Katarina and Janošević Ležaić, Aleksandra and Gavrilov, Nemanja M.",
year = "2020",
abstract = "Novi materijali za primenu u elektrohemijskim kondenzatorima razvijaju se u različitim pravcima: ugljenične nanocevi, grafen, aktivirani ugljenici, templirani porozni ugljenici, a sve sa ciljem poboljšanja njihovih karakteristika kroz povećanje kapaciteta dvojnog električnog sloja i/ili pseudokapacitivnih faradejskih procesa. Cilj ovog rada bio je određivanje kapaciteta za seriju ugljeničnih materijala metodom ciklične voltametrije pri različitim brzinama polarizacije, kao i razdvajanje doprinosa dvojnog električnog sloja i pseudokapacitivnosti ukupnoj vrednosti kapaciteta elektrohemijskih kondenzatora. Ispitivani materijali uključuju: karbonizovani nanostrukturni polianilin (C-PANI), karbonizovani polianilin dopiran 2,2-difenil-1-pikrilhidrazilom (C-DPPH) i aktivni ugalj (AC). Njihove karakteristike ispitane su u 6M KOH i 0,5M H2SO4, a kapacitivna svojstva pomenutih materijala uspešno su razdvojena primenom Trasatijeve (Trasatti) i Danove (Dunn) metode. Pokazano je da aktivni ugalj, bez obzira što nema najveću vrednost specifičnog kapaciteta u svim elektrolitima, ipak ima najveću retenciju kapaciteta i da bi bio najpogodniji za primenu kao elektrodni materijal u odnosu na ispitivane materijale., New materials for use in electrochemical capacitors are being developed in different directions: carbon nanotubes, graphene, activated carbon, templated porous carbon, all with the aim of improving their properties by increasing the capacitance of the double electric layer and/or pseudocapacitive faradaic processes. The aim of this work was to determine the capacitance of a series of carbon materials using cyclic voltammetry at different polarization rates, as well as to separate the contribution of the electric double layer capacitance and pseudo-capacitance to the total value of the capacitance. Materials that were tested include: carbonized nanostructured polyaniline (C-PANI), carbonated polyaniline doped with 2,2-diphenyl-1-picrylhydrazyl (C-DPPH) and activated carbon (AC). Their characteristics were tested in 6M KOH and 0.5M H2SO4, and the capacitance properties of the mentioned materials were successfully separated using Trasatti and Dunn methods. It has been shown that among the tested materials, activated carbon has the highest capacity retention, and it would be the best suited for use as electrode material, although it doesn't have the highest specific capacitance value in all electrolytes.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "Tehnika",
title = "Izračunavanje udela pseudo-kapaciteta i dvojnog električnog sloja kod elektrohemijskih kondenzatora na bazi karbonizovanih ugljenika",
pages = "135-140",
volume = "75",
number = "2",
doi = "10.5937/tehnika2002135A",
url = "https://hdl.handle.net/21.15107/rcub_dais_16172"
}

Aleksić, K., Janošević Ležaić, A.,& Gavrilov, N. M.. (2020). Izračunavanje udela pseudo-kapaciteta i dvojnog električnog sloja kod elektrohemijskih kondenzatora na bazi karbonizovanih ugljenika. in Tehnika
Beograd : Savez inženjera i tehničara Srbije., 75(2), 135-140.
https://doi.org/10.5937/tehnika2002135A
https://hdl.handle.net/21.15107/rcub_dais_16172

Aleksić K, Janošević Ležaić A, Gavrilov NM. Izračunavanje udela pseudo-kapaciteta i dvojnog električnog sloja kod elektrohemijskih kondenzatora na bazi karbonizovanih ugljenika. in Tehnika. 2020;75(2):135-140.
doi:10.5937/tehnika2002135A
https://hdl.handle.net/21.15107/rcub_dais_16172 .

Aleksić, Katarina, Janošević Ležaić, Aleksandra, Gavrilov, Nemanja M., "Izračunavanje udela pseudo-kapaciteta i dvojnog električnog sloja kod elektrohemijskih kondenzatora na bazi karbonizovanih ugljenika" in Tehnika, 75, no. 2 (2020):135-140,
https://doi.org/10.5937/tehnika2002135A .,
https://hdl.handle.net/21.15107/rcub_dais_16172 .