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 . .