The hierarchical MoS 2 @NiFeCo-Mo(doped)-LDH and MoS 2 @NiFeCo-LDH heterostructures developed in this work demonstrate excellent (photo)electrocatalytic performance towards alka-line water splitting as these materials achieve low overpotentials and high stability compared to state-of-the-art catalysts. Because the developed electrodes contain only abundant elements and can be easily synthesized, the advances herein hold high potential in advancing green hydrogen generation through alkaline water electrolysis. Future research will explore the scalability of these synthesis methods to improve the reproducibility in large-scale manufacturing. We also believe that the materials and synthesis methods developed herein may also be applied to other electrocatalytic reactions, such as fuel cells, nitrogen reduction, and carbon dioxide reduction.