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This study demonstrates improved catalytic activity and stability in iridium/ruthenium oxides via transition metal doping, indicating potential for cost-effective electrocatalysts.
Developing highly efficient and stable acidic oxygen evolution reaction (OER) catalysts is crucial for water electrolysis hydrogen production. However, commercial iridium‐based and ruthenium‐based oxides (IrO 2 and RuO 2 ) face challenges of high costs and insufficient durability, making the development of cost‐effective, high‐performance, and stable electrocatalysts particularly significant. This study systematically discusses the enhancement of OER catalytic activity and stability of IrO 2 and RuO 2 through transition metal doping (3d, 4d, 5d, and multi‐metal), which can modify electronic structures and optimize d‐band centers. This work elucidates the structure–activity relationships in transition metal doped Ir/Ru oxides, revealing future opportunities in non‐noble metal doping strategies and atomic‐level design to achieve high‐performance and economical acidic OER catalysts.
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Li et al. (2025) studied this question.
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