Modulation of interfacial electronic structure in Ni3P/NiFe LDH p–n junction for efficient oxygen evolution at ampere-level current density

Herein, a Ni 3 P/NiFe LDH heterostructure is synthesized with remarkable OER activity, and the current density of 1.4 A cm −2 can be achieved with only 304 mV in 1 M KOH.