TY  - JOUR
AU  - Milikić, Jadranka
AU  - Nastasić, Ana
AU  - Rakočević, Lazar
AU  - Radinović, Kristina
AU  - Stojadinović, Stevan
AU  - Stanković, Dalibor
AU  - Šljukić, Biljana
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13174
AB  - Three different iron-based electrocatalysts deposited on reduced graphene oxide (Fe/rGO, FeNi/rGO, and FeCu/ rGO) were synthesized and examined for oxygen reduction and evolution reactions (ORR and OER, respectively) in alkaline media. X-ray powder diffraction analysis, Fourier transform infrared spectroscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy were used for a thorough investigation of physico-chemical properties of FeM/rGO electrocatalysts. XPS analysis indicated the presence of transition metals in higher oxidation states. Onset potentials during OER were found to be 1.51, 1.64, and 1.71 V for FeNi/rGO, FeCu/rGO, and Fe/rGO, respectively. Moreover, FeNi/rGO showed the highest OER current density (~40 mA cm benchmark OER electrocatalyst, IrO 2 2 at 2 V), two times higher than the -1 , and the lowest Tafel slope (88 mV dec ), lower than IrO . The somewhat better catalytic activity of Fe/rGO for ORR in alkaline media compared to FeNi/rGO and FeCu/rGO was noticed. Tafel slopes of 105, 112, and 113 mV dec 2-1 during ORR were found for Fe/rGO, FeCu/rGO, and FeNi/rGO, respectively. Almost constant ORR current densities during chronoamperometric measurements were noticed for Fe/rGO and FeCu/rGO indicating stable performance.
T2  - Fuel
T1  - FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode
VL  - 368
SP  - 131654
DO  - 10.1016/j.fuel.2024.131654
ER  - 

@article{
author = "Milikić, Jadranka and Nastasić, Ana and Rakočević, Lazar and Radinović, Kristina and Stojadinović, Stevan and Stanković, Dalibor and Šljukić, Biljana",
year = "2024",
abstract = "Three different iron-based electrocatalysts deposited on reduced graphene oxide (Fe/rGO, FeNi/rGO, and FeCu/ rGO) were synthesized and examined for oxygen reduction and evolution reactions (ORR and OER, respectively) in alkaline media. X-ray powder diffraction analysis, Fourier transform infrared spectroscopy, scanning electron microscopy with energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy were used for a thorough investigation of physico-chemical properties of FeM/rGO electrocatalysts. XPS analysis indicated the presence of transition metals in higher oxidation states. Onset potentials during OER were found to be 1.51, 1.64, and 1.71 V for FeNi/rGO, FeCu/rGO, and Fe/rGO, respectively. Moreover, FeNi/rGO showed the highest OER current density (~40 mA cm benchmark OER electrocatalyst, IrO 2 2 at 2 V), two times higher than the -1 , and the lowest Tafel slope (88 mV dec ), lower than IrO . The somewhat better catalytic activity of Fe/rGO for ORR in alkaline media compared to FeNi/rGO and FeCu/rGO was noticed. Tafel slopes of 105, 112, and 113 mV dec 2-1 during ORR were found for Fe/rGO, FeCu/rGO, and FeNi/rGO, respectively. Almost constant ORR current densities during chronoamperometric measurements were noticed for Fe/rGO and FeCu/rGO indicating stable performance.",
journal = "Fuel",
title = "FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode",
volume = "368",
pages = "131654",
doi = "10.1016/j.fuel.2024.131654"
}

Milikić, J., Nastasić, A., Rakočević, L., Radinović, K., Stojadinović, S., Stanković, D.,& Šljukić, B.. (2024). FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode. in Fuel, 368, 131654.
https://doi.org/10.1016/j.fuel.2024.131654

Milikić J, Nastasić A, Rakočević L, Radinović K, Stojadinović S, Stanković D, Šljukić B. FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode. in Fuel. 2024;368:131654.
doi:10.1016/j.fuel.2024.131654 .

Milikić, Jadranka, Nastasić, Ana, Rakočević, Lazar, Radinović, Kristina, Stojadinović, Stevan, Stanković, Dalibor, Šljukić, Biljana, "FeM/rGO (M = Ni and Cu) as bifunctional oxygen electrode" in Fuel, 368 (2024):131654,
https://doi.org/10.1016/j.fuel.2024.131654 . .

TY  - JOUR
AU  - Radinović, Kristina
AU  - Milikić, Jadranka
AU  - Stamenović, Una
AU  - Vodnik, Vesna
AU  - Otoničar, Mojca
AU  - Škapin, Srečo Davor
AU  - Šljukić, Biljana
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9860
AB  - Nanocomposites of gold nanoparticles (AuNPs) and conducting polymers, polypyrrole (PPy) and polyaniline (PANI), were prepared by simple oxidative polymerization of the corresponding monomer (pyrrole and aniline, respectively) by tetrachloroauric acid. Au nanospheres and nanorods were formed in the case of Au@PPy and Au@PANI, respectively. Detection of As(III) using Au@polymer was investigated where both nanocomposites showed similar activity for As electrooxidation in acidic media. The activity of Au@PPy was notably improved upon the addition of a small amount of conducting carbon, giving higher current densities compared to the commercial Au electrode. Further optimization of the operational conditions including electrolyte composition, deposition time and potential, was carried out to reach the limit of quantification as low as 2 ppb. Au@PPy nanocomposite proved to be suitable for sensing of As(III) in the presence of other ions, such as Cu(II). Furthermore, it proved to be suitable for As(III) sensing in real samples.
T2  - Synthetic Metals
T1  - Tailoring gold-conducting polymer nanocomposites for sensors applications: Proof of concept for As(III) sensing in aqueous media
VL  - 278
SP  - 116834
DO  - 10.1016/j.synthmet.2021.116834
ER  - 

@article{
author = "Radinović, Kristina and Milikić, Jadranka and Stamenović, Una and Vodnik, Vesna and Otoničar, Mojca and Škapin, Srečo Davor and Šljukić, Biljana",
year = "2021",
abstract = "Nanocomposites of gold nanoparticles (AuNPs) and conducting polymers, polypyrrole (PPy) and polyaniline (PANI), were prepared by simple oxidative polymerization of the corresponding monomer (pyrrole and aniline, respectively) by tetrachloroauric acid. Au nanospheres and nanorods were formed in the case of Au@PPy and Au@PANI, respectively. Detection of As(III) using Au@polymer was investigated where both nanocomposites showed similar activity for As electrooxidation in acidic media. The activity of Au@PPy was notably improved upon the addition of a small amount of conducting carbon, giving higher current densities compared to the commercial Au electrode. Further optimization of the operational conditions including electrolyte composition, deposition time and potential, was carried out to reach the limit of quantification as low as 2 ppb. Au@PPy nanocomposite proved to be suitable for sensing of As(III) in the presence of other ions, such as Cu(II). Furthermore, it proved to be suitable for As(III) sensing in real samples.",
journal = "Synthetic Metals",
title = "Tailoring gold-conducting polymer nanocomposites for sensors applications: Proof of concept for As(III) sensing in aqueous media",
volume = "278",
pages = "116834",
doi = "10.1016/j.synthmet.2021.116834"
}

Radinović, K., Milikić, J., Stamenović, U., Vodnik, V., Otoničar, M., Škapin, S. D.,& Šljukić, B.. (2021). Tailoring gold-conducting polymer nanocomposites for sensors applications: Proof of concept for As(III) sensing in aqueous media. in Synthetic Metals, 278, 116834.
https://doi.org/10.1016/j.synthmet.2021.116834

Radinović K, Milikić J, Stamenović U, Vodnik V, Otoničar M, Škapin SD, Šljukić B. Tailoring gold-conducting polymer nanocomposites for sensors applications: Proof of concept for As(III) sensing in aqueous media. in Synthetic Metals. 2021;278:116834.
doi:10.1016/j.synthmet.2021.116834 .

Radinović, Kristina, Milikić, Jadranka, Stamenović, Una, Vodnik, Vesna, Otoničar, Mojca, Škapin, Srečo Davor, Šljukić, Biljana, "Tailoring gold-conducting polymer nanocomposites for sensors applications: Proof of concept for As(III) sensing in aqueous media" in Synthetic Metals, 278 (2021):116834,
https://doi.org/10.1016/j.synthmet.2021.116834 . .