Tuning Interfacial Electron Transfer by Anchoring NiFe-LDH on In-situ Grown Cu2O for Enhancing Oxygen Evolution

摘要: Interfacial electron transfer within the electrode is crucial for various electrocatalytic reactions. Herein, we demonstrated that in-situ grown Cu2O on Cu foam as a scaffold to load active ingredients could lower interfacial contact resistance and promote in oxygen evolution reaction. Meanwhile, Cu2O/Cu (CCF) facilitates components due higher surface area resulting from its irregular scattered structure. As demonstration, Ni–Fe doubles layered hydroxide (NiFe-LDH) coated carbon nanotube spheroidal particles (CNS@NiFe) was anchored by drop-casting route assemble CNS@NiFe/CCF hybrid electrodes with CCF scaffolds. The afforded an ultralow overpotential of 248 mV at 10 mA cm−2 small Tafel slope 32.9 mV dec−1 excellent stability. Schematic illustration architecture.