Standing NiFe LDH nanosheets on stainless steel fibers felt: A synergistic impact on the oxygen evolution reaction (OER) for the water splitting

Controllable preparation of NiFe layered double hydroxides (LDH) on suitable conductive substrate is always a key precondition for their wide applications. Standing NiFe LDH nanosheets were successfully grown on stainless steel fibers felt (SSFF) at room temperature. The prepared [email protected] NiFe LDH electrocatalyst displayed a high electrocatalytic performance for the oxygen evolution reaction (OER) in alkaline electrolyte as well as alkaline seawater. The effects of mass loading and molar ratio of Ni/Fe on the electrocatalytic activity were also evaluated. With the optimized electrode, the overpotential for the anodic OER process only needs 198 and 260 mV at a current density of 10 and 300 mA cm−2, respectively.