TY  - JOUR
AU  - Andrić, Stevan
AU  - Milikić, Jadranka
AU  - Sevim, Melike
AU  - Santos, Diogo M. F.
AU  - Šljukić, Biljana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6676
AB  - Oxygen evolution reaction (OER) represents the efficiency-limiting reaction in water electrolyzers, metal-air batteries, and unitized regenerative fuel cells. To achieve high-efficiency OER in alkaline media, we fabricated three novel electrocatalysts by the assembly of as-prepared Co45Pt55 alloy nanoparticles (NPs) on three different carbon-based support materials: reduced graphene oxide (CoPt/rGO), mesoporous graphitic carbon nitride (CoPt/mpg-CN), and commercial Ketjenblack carbon (CoPt/KB). Voltammetry studies revealed that CoPt/rGO electrocatalyst provided lower OER overpotentials accompanied by higher currents and specific current density values than the other two studied materials. Moreover, CoPt/rGO outperformed commercial CoPt/C electrocatalysts in terms of notably higher specific current densities. Additionally, it was found that CoPt/rGO electrocatalyst activity increases with increasing temperature up to 85°C, as suggested by the increase in the exchange current density. Electrochemical impedance spectroscopy studies of three electrocatalysts in OER revealed similar charge transfer resistance, although CoPt/rGO provided a higher current density. The main issue observed during long-term chronoamperometry and chronopotentiometry studies is the materials’ instability under OER polarization conditions, which is still to be tackled in future work.
PB  - Frontiers Media SA
T2  - Frontiers in Chemistry
T1  - Effect of carbon support on the activity of monodisperse Co45Pt55 nanoparticles for oxygen evolution in alkaline media
VL  - 11
SP  - 1244148
DO  - 10.3389/fchem.2023.1244148
ER  - 

@article{
author = "Andrić, Stevan and Milikić, Jadranka and Sevim, Melike and Santos, Diogo M. F. and Šljukić, Biljana",
year = "2023",
abstract = "Oxygen evolution reaction (OER) represents the efficiency-limiting reaction in water electrolyzers, metal-air batteries, and unitized regenerative fuel cells. To achieve high-efficiency OER in alkaline media, we fabricated three novel electrocatalysts by the assembly of as-prepared Co45Pt55 alloy nanoparticles (NPs) on three different carbon-based support materials: reduced graphene oxide (CoPt/rGO), mesoporous graphitic carbon nitride (CoPt/mpg-CN), and commercial Ketjenblack carbon (CoPt/KB). Voltammetry studies revealed that CoPt/rGO electrocatalyst provided lower OER overpotentials accompanied by higher currents and specific current density values than the other two studied materials. Moreover, CoPt/rGO outperformed commercial CoPt/C electrocatalysts in terms of notably higher specific current densities. Additionally, it was found that CoPt/rGO electrocatalyst activity increases with increasing temperature up to 85°C, as suggested by the increase in the exchange current density. Electrochemical impedance spectroscopy studies of three electrocatalysts in OER revealed similar charge transfer resistance, although CoPt/rGO provided a higher current density. The main issue observed during long-term chronoamperometry and chronopotentiometry studies is the materials’ instability under OER polarization conditions, which is still to be tackled in future work.",
publisher = "Frontiers Media SA",
journal = "Frontiers in Chemistry",
title = "Effect of carbon support on the activity of monodisperse Co45Pt55 nanoparticles for oxygen evolution in alkaline media",
volume = "11",
pages = "1244148",
doi = "10.3389/fchem.2023.1244148"
}

Andrić, S., Milikić, J., Sevim, M., Santos, D. M. F.,& Šljukić, B.. (2023). Effect of carbon support on the activity of monodisperse Co45Pt55 nanoparticles for oxygen evolution in alkaline media. in Frontiers in Chemistry
Frontiers Media SA., 11, 1244148.
https://doi.org/10.3389/fchem.2023.1244148

Andrić S, Milikić J, Sevim M, Santos DMF, Šljukić B. Effect of carbon support on the activity of monodisperse Co45Pt55 nanoparticles for oxygen evolution in alkaline media. in Frontiers in Chemistry. 2023;11:1244148.
doi:10.3389/fchem.2023.1244148 .

Andrić, Stevan, Milikić, Jadranka, Sevim, Melike, Santos, Diogo M. F., Šljukić, Biljana, "Effect of carbon support on the activity of monodisperse Co45Pt55 nanoparticles for oxygen evolution in alkaline media" in Frontiers in Chemistry, 11 (2023):1244148,
https://doi.org/10.3389/fchem.2023.1244148 . .

TY  - JOUR
AU  - Milikić, Jadranka
AU  - Oliveira, Raisa C. P.
AU  - Stoševski, Ivan
AU  - Krstić, Jugoslav
AU  - Hercigonja, Radmila
AU  - Miljanić, Šćepan
AU  - Santos, Diogo M. F.
AU  - Šljukić, Biljana
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3317
AB  - Three zeolites (A, X and Y) with Ag incorporated in their cages are tested as bifunctional electrocatalysts
for direct borohydride fuel cells (DBFCs). Ag zeolites are characterised by XRD, FTIR, nitrogen sorption
and SEM, as well as by electrochemical methods. Ag zeolite shows good activity for the anodic reaction,
i.e., borohydride oxidation reaction (BOR) in alkaline media, presenting low onset potential and high
current densities. BOR kinetic and faradaic parameters at AgY are calculated, with the number of
exchanged electrons being 4.3. The BOR at AgY was found to be of 0.6 order with respect to BH4
 
concentration with an activation energy of 13 kJ mol 1. Regarding ORR, AgX shows the best
performance with the highest current densities and good stability over time. A two-electron pathway is
observed for ORR at AgX and specific capacitance was calculated to be 5.61 F g 1. The DBFC
performance is investigated based on half-cell measurements of the AgY anode and Pt/C cathode
PB  - Royal Society of Chemistry
T2  - New Journal of Chemistry
T1  - Evaluation of silver-incorporating zeolites as bifunctional electrocatalysts for direct borohydride fuel cells
VL  - 43
IS  - 36
SP  - 14270
EP  - 14280
DO  - 10.1039/c9nj02148e
ER  - 

@article{
author = "Milikić, Jadranka and Oliveira, Raisa C. P. and Stoševski, Ivan and Krstić, Jugoslav and Hercigonja, Radmila and Miljanić, Šćepan and Santos, Diogo M. F. and Šljukić, Biljana",
year = "2019",
abstract = "Three zeolites (A, X and Y) with Ag incorporated in their cages are tested as bifunctional electrocatalysts
for direct borohydride fuel cells (DBFCs). Ag zeolites are characterised by XRD, FTIR, nitrogen sorption
and SEM, as well as by electrochemical methods. Ag zeolite shows good activity for the anodic reaction,
i.e., borohydride oxidation reaction (BOR) in alkaline media, presenting low onset potential and high
current densities. BOR kinetic and faradaic parameters at AgY are calculated, with the number of
exchanged electrons being 4.3. The BOR at AgY was found to be of 0.6 order with respect to BH4
 
concentration with an activation energy of 13 kJ mol 1. Regarding ORR, AgX shows the best
performance with the highest current densities and good stability over time. A two-electron pathway is
observed for ORR at AgX and specific capacitance was calculated to be 5.61 F g 1. The DBFC
performance is investigated based on half-cell measurements of the AgY anode and Pt/C cathode",
publisher = "Royal Society of Chemistry",
journal = "New Journal of Chemistry",
title = "Evaluation of silver-incorporating zeolites as bifunctional electrocatalysts for direct borohydride fuel cells",
volume = "43",
number = "36",
pages = "14270-14280",
doi = "10.1039/c9nj02148e"
}

Milikić, J., Oliveira, R. C. P., Stoševski, I., Krstić, J., Hercigonja, R., Miljanić, Š., Santos, D. M. F.,& Šljukić, B.. (2019). Evaluation of silver-incorporating zeolites as bifunctional electrocatalysts for direct borohydride fuel cells. in New Journal of Chemistry
Royal Society of Chemistry., 43(36), 14270-14280.
https://doi.org/10.1039/c9nj02148e

Milikić J, Oliveira RCP, Stoševski I, Krstić J, Hercigonja R, Miljanić Š, Santos DMF, Šljukić B. Evaluation of silver-incorporating zeolites as bifunctional electrocatalysts for direct borohydride fuel cells. in New Journal of Chemistry. 2019;43(36):14270-14280.
doi:10.1039/c9nj02148e .

Milikić, Jadranka, Oliveira, Raisa C. P., Stoševski, Ivan, Krstić, Jugoslav, Hercigonja, Radmila, Miljanić, Šćepan, Santos, Diogo M. F., Šljukić, Biljana, "Evaluation of silver-incorporating zeolites as bifunctional electrocatalysts for direct borohydride fuel cells" in New Journal of Chemistry, 43, no. 36 (2019):14270-14280,
https://doi.org/10.1039/c9nj02148e . .