Scalable one-step electrochemical deposition of nanoporous amorphous S-doped NiFe 2 O 4 /Ni 3 Fe composite films as highly efficient electrocatalysts for oxygen evolution with ultrahigh stability

Self-supported 3D nanoporous amorphous S-doped NiFe 2 O 4 /Ni 3 Fe composite films grown on nickel wire were fabricated via a facile and scalable one-step electrochemical deposition route in ethaline and developed as highly active and robustly stable electrocatalysts for OER in alkaline media.