Nano-interfacial interactions in 2-D Ni3S2–Ni3N nanosheets for the hydrogen evolution reaction in an alkaline medium

Herein, a heterostructure of Ni 3 S 2 –Ni 3 N was prepared by a three-step synthesis procedure that consists of the formation of Ni 3 S 2 on NF, the electrodeposition of Ni(OH) 2 over Ni 3 S 2 and nitridation in the presence of ammonia.