Two-dimensional copper cobaltate nanosheets as an efficient bifunctional electrocatalyst for water splitting

Abstract Electrochemical water splitting is a promising strategy for sustainable hydrogen production; however, it requires efficient and durable non-noble metal electrocatalysts. In this work, we report the controlled synthesis of two-dimensional (2D) CuCo₂O₄ nanosheets (CC-NS) via a Triton X-100-assisted hydrothermal method, highlighting a morphology-engineering approach for enhanced bifunctional catalysis. The surfactant-directed growth enables the formation of a porous, ultrathin spinel archi