Recent Advances in Co₃O₄-Based Hybrid Structures for Water Electrolysis

Water electrolysis in association with electrocatalysts, has been indicated as a pivotal pathway to produce hydrogen and could tackle the issues related to the carbon footprint. Co₃O₄-based hybrid structural materials with high catalytic activity and rich defects are evaluated as efficacious advocates of water splitting. This account commences by explicating the mechanistic underpinnings of the hydrogen evolution reaction (HER). Next, a range of hybrid structures of Co₃O₄ with metals, metal oxides, metal sulfides, metal phosphides, metal selenides, layered double hydroxides, and carbon materials are introduced as potential catalysts for HER. Finally, burdensome tasks and reliable guidelines for the progression of Co₃O₄-based architectures for the enhancement of HER are discussed.