In situ growth of well-ordered NiFe-MOF-74 on Ni foam by Fe2+ induction as an efficient and stable electrocatalyst for water oxidation

Uniform and well-ordered NiFe-MOF-74 was in situ grown on Ni foam by Fe²⁺ induction, exhibiting enhanced activity toward the OER with a very low overpotential of 223 mV at a current density of 10 mA cm⁻².