Breakthrough in seawater electrolysis achieved by stimulating oxygen evolution reaction via lattice oxygen mechanism

Nowadays, achieving efficient and stable oxygen evolution reaction in complex seawater environment is the key to optimize seawater electrolysis hydrogen production technology. In recent years, LOM has received extensive attention due to its efficient and stable catalytic performance. LOM directly participates in O─O coupling through lattice oxygen, which breaks through the thermodynamic limitation of AEM, and also effectively inhibits anodic chlorine corrosion and ClOR in seawater OER, which lays a good foundation for the research of highly active and stable OER catalysts. In this paper, the recent research progress of LOM-based OER electrocatalysts in seawater environment is reviewed. Firstly, the OER mechanism and the challenges of seawater OER are introduced, and then the identification method of LOM is systematically expounded. The core regulatory strategies for activating lattice oxygen mechanism are discussed. Finally, according to the practical application of seawater electrolysis, the LOM electrocatalysts are summarized and prospected.