▎ 摘　　要

NOVELTY - Nickel-iron hydroxide/reduced graphene oxide electrochemical oxygen evolution catalyst comprises nickel foam as a carrier, iron hydroxide and/or nickel hydroxide as active components and reduced graphene oxide as a conductive material. USE - Used as nickel-iron hydroxide/reduced graphene oxide electrochemical oxygen evolution catalyst. ADVANTAGE - The catalyst has good catalytic activity and high stability. The method is simple and controllable and is suitable for industrial production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the catalyst, comprising (a) ultrasonic cleaning of foamed nickel and drying; (b) dissolving nickel salt and urea in deionized water and stirring at room temperature to obtain a homogeneous mixture; (c) adding graphene oxide to the mixture in step (b), subjecting to ultrasonic treatment in an ultrasonic bath to obtain a uniformly dispersed mixture; (d) transferring foamed nickel and mixture into a hydrothermal kettle and reacting at 120-200 degrees C for 12-24 hours; (e) washing foamed nickel with ethanol and deionized water and drying; and (f) immersing foamed nickel in 5-30 mmol/l iron salt for 0-48 hours and washing with ethanol and deionized water and drying.