Interfacial electronic engineering in an amorphous NiFe LDH/low-crystallinity CoPx heterostructure for efficient water splitting

Abstract

An amorphous NiFe LDH/low-crystallinity CoP_x heterostructure is constructed via two-step electrodeposition. The catalyst exhibits outstanding bifunctional activity for overall water splitting, requiring only 1.537 V to achieve 10 mA cm⁻² with exceptional stability, attributed to the interfacial electronic engineering within the p–n junction.