| Water electrolysis is one of the most environmentally friendly and promising ways to produce hydrogen. Oxygen evolution reaction (OER) involved in the process of water electrolysis is an important reaction process that determines the rate of hydrogen production, and Ru- and Ir-based catalysts have been known, by far, the most effective electrocatalysts which can reduce the high overpotential of the OER and accelerate the OER reaction. The research results on the design and synthesis of Ru- and Ir-based catalysts used in this field in recent years are reviewed, including single metal catalysts of Ru and Ir, PGM-Ru and-Ir bimetallic catalysts, and non-PGM-Ru and-Ir bimetallic catalysts. Finally, the future development trend of OER catalysts is prospected. |
