Highly Efficient Oxygen Electrode Obtained by Sequential Deposition of Transition Metal-Platinum Alloys on Graphene Nanoplatelets
Özet
A set of platinum (Pt) and earth-abundant transition metals (M = Ni, Fe, Cu) on graphene nanoplatelets (sqPtM/GNPs) was synthesised via sequential deposition to establish parallels between the synthesis method and the materials’ electrochemical properties. sqPtM/GNPs were assessed as bifunctional electrocatalysts for oxygen evolution (OER) and reduction (ORR) reactions for application in unitised regenerative fuel cells and metal-air batteries. sqPtFe/GNPs showed the highest catalytic performance with a low potential difference of ORR half-wave potential and overpotential at 10 mA cm−2 during OER, a crucial parameter for bifunctional electrocatalysts benchmarking. A novel two-stage synthesis strategy led to higher electrocatalytic performance by facilitating the reactants’ access to the active sites and reducing the charge-transfer resistance.
Anahtar kelimeler
Atıf için künye
Mladenović, D., Daş, E., Santos, D. M. F., Bayrakçeken, A., & Šljukić, B. (2023). Highly Efficient Oxygen Electrode Obtained by Sequential Deposition of Transition Metal-Platinum Alloys on Graphene Nanoplatelets. MATERIALS, 16(9). https://doi.org/10.3390/ma16093388
BibTeX
@article{mladenovic2023-187571,
author = {Mladenović, Dušan and Daş, Elif and Santos, Diogo M. F. and Bayrakçeken, Ayşe and Šljukić, Biljana},
title = {Highly Efficient Oxygen Electrode Obtained by Sequential Deposition of Transition Metal-Platinum Alloys on Graphene Nanoplatelets},
journal = {MATERIALS},
year = {2023},
volume = {16},
number = {9},
issn = {1996-1944},
doi = {10.3390/ma16093388},
url = {https://akademik.atauni.edu.tr/yayinlar/187571-highly-efficient-oxygen-electrode-obtained-by-sequential-deposition-of}
}