articleACS CatalysisJan 13, 2026Closed access

Engineering Acid-Stable OER Electrocatalysts: Recent Advances in Main-Group Element Doping of Ir- and Ru-Based Oxides

GMGuoxin MaHHHaohao HuoYHYuxin HuJLJia LiuZLZhe Liu

State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering · Xi'an Jiaotong University · +5 more institutions

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Abstract

As the world moves toward carbon neutrality, demand for highly efficient, durable oxygen evolution reaction (OER) electrocatalysts for proton exchange membrane water electrolysis (PEMWE) is increasing. Despite being benchmarks, IrO2 and RuO2 face a trade-off between activity and stability. Doping with main-group elements is an effective strategy for overcoming these challenges, as it leverages the simple electronic configurations and stable oxidation states of these elements to modulate the catalyst properties without introducing the complex redox behavior often associated with transition metal dopants. This review outlines four core enhancement mechanisms, electronic effects, lattice defects and strain,…

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Topics & keywords

Topics
Keywords
  • Oxygen evolution
  • Dopant
  • Electrolysis of water
  • Catalysis
  • Transition metal
  • Redox
  • Electrocatalyst
  • Doping
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