Article 2024 · 6 citations

Optimizing Oxygen Electrode Bifunctionality with Platinum and Nickel Nanoparticle-Decorated Nitrogen-Doped Binary Metal Oxides

Mladenovic, Dusan, Aykut, Yasemin, Yurtcan, Ayse B., Soylu, Gulin S. P., Santos, Diogo M. F., Miljanic, Scepan, Sljukic, Biljana

Abstract

Developing bifunctional oxygen electrode materials with superior activity for oxygen reduction (ORR) and oxygen evolution (OER) reactions is essential for advancing regenerative fuel cell and rechargeable metal-air battery technologies. This present work deals with the synthesis and characterization of electrocatalysts containing Pt and Ni nanoparticles supported on nitrogen-doped mixed metal oxides (Mn2O3-NiO) and the systematic evaluation of their bifunctional ORR/OER performance in an alkaline medium. These electrocatalysts have been successfully synthesized by a simple and fast microwave method. PtNi/Mn2O3-NiO-N with a binary metal oxide-to-N ratio of 1:2 demonstrated the best performance among the studied materials regarding bifunctional electrocatalytic activity ( increment E = 0.96 V) and robust stability.

Keywords

oxygen reduction reaction oxygen evolution reaction bifunctional electrocatalyst binary metal oxides platinum and nickel nanoparticles REGENERATIVE FUEL-CELL EVOLUTION REACTION REDUCTION REACTION CARBON NANOTUBES HYDROGEN ECONOMY SUPPORTED PTNI ELECTROCATALYSTS CATALYSTS IRIDIUM NIO

WoS Categories

Engineering, Chemical

Sustainable Development Goals

Affordable and Clean Energy

Citation

Journal: PROCESSES
Year: 2024
Volume: 12
Issue: 3
eISSN: 2227-9717
DOI: 10.3390/pr12030453
WoS UID: WOS:001192989500001

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