Standing NiFe LDH nanosheets on stainless steel fibers felt: A synergistic impact on the oxygen evolution reaction (OER) for the water splitting
Yanqi Liu, Zhaohai Song, Zheng Li, Minmin Han, Yongliang Cheng, Zongmin Zheng
Abstract
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.