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.