High-Temperature Regulation of Manganese Oxide Hybrid for Efficient Alkaline Oxygen Evolution Reaction

Tao Feng; Zonglong Lu

doi:10.54691/8r07ze24

High-Temperature Regulation of Manganese Oxide Hybrid for Efficient Alkaline Oxygen Evolution Reaction

Tao Feng, Zonglong Lu

Frontiers in Sustainable Development, (2025), Vol.5, No.2, pp.24-28

Published: February 23, 2025

DOI: 10.54691/8r07ze24

PDF: Download Full Text PDF

Abstract

Manganese-based oxides with diverse oxidation states, are promising electrochemical catalysts. In this work, we fabricated a novel hybrid electrocatalyst by integrating Mn2O3 and α-MnO2 on carbon paper (CP) using a two-step electrodeposition process, followed by annealing treatments at various temperatures. Notably, the hybrid electrocatalyst demonstrated significant performance enhancements compared to individual manganese oxides. In 1 M KOH electrolyte, the hybrid electrocatalyst displayed superior oxygen evolution reaction (OER) performance, requiring only a low overpotential of 290 mV to reach 10 mA cm-2. This electrocatalyst also exhibited excellent stability, maintaining performance over 12 hours. The results suggest that the synergistic combination of Mn2O3 and MnO2 plays a crucial role in enhancing OER performance.

Keywords: Manganese-based Oxides; Electrocatalyst; Oxygen Evolution; Alkaline Electrolyte.

APA Citation: Tao Feng, Zonglong Lu (2025). High-Temperature Regulation of Manganese Oxide Hybrid for Efficient Alkaline Oxygen Evolution Reaction. Frontiers in Sustainable Development, 5(2), 24-28. https://doi.org/10.54691/8r07ze24

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