Combined effects of the hetero-interface of NiSe 2 –Ni 3 Se 4 and Fe doping markedly boost the electrocatalytic overall water splitting performance of a self-supported nanosheet array electrode

The combined effects of the hetero-interface of NiSe 2 –Ni 3 Se 4 and Fe doping markedly boost the electrocatalytic overall water splitting performance of the Fe–NiSe 2 –Ni 3 Se 4 /NF-2 electrode.