This review summarizes recent progress in layered double hydroxide oxygen evolution reaction electrocatalysts including design strategies, key issues and future prospects.

Meticulously designed 3D porous core–shell Ni nanochains@NiFe LDH nanosheets bifunctional electrocatalysts outperform the state-of-the-art IrO₂ (+)//Pt/C (−) electrodes and most of the reported LDH electrocatalysts for overall water splitting.

Inheritance and transformation: an in situ topological transformed NiCoFe-MOF nanosheet electrocatalyst exhibits highly efficient activity for water oxidation in an anion exchange membrane water electrolyzer.