▎ 摘　　要

NOVELTY - Method for preparing high-efficiency water oxidation iron-nickel sulfide/reduced graphene oxide electrocatalyst, involves (a) adding 0.6 g lysine to 75 ml 0.05mol/l nickel chloride solution, continuously heating and stirring at 40degrees Celsius water bath until dissolved, dripping ammonia water, stirring, adding the obtained solution into 100 ml reaction kettle, centrifuging the sample, and drying, (b) heating the sample and calcining, (c) adding ferric chloride, thiourea, graphene oxide, and sample obtained in step (b), adding to 60 ml deionized water, ultrasonically processing for 20 minutes, stirring in a 40degrees Celsius water bath for 0.5 hour, adding the obtained mixed solution into a 100 ml reaction kettle, heating the reaction kettle, naturally cooling, centrifuging the sample, washing and drying, and (d) mixing 0.2-0.5 g sublimated sulfur and 0.05-0.1 g sample obtained in step (c), grinding, calcining under protection of inert gas and naturally cooling down. USE - The method is useful for preparing high-efficiency water oxidation iron-nickel sulfide/reduced graphene oxide electrocatalyst for preparing an electrocatalytic electrode. ADVANTAGE - The electrocatalyst has oxygen evolution reaction raw material price, high catalytic activity, low over-potential and good chemical stability. DETAILED DESCRIPTION - Method for preparing high-efficiency water oxidation iron-nickel sulfide/reduced graphene oxide electrocatalyst, involves (a) adding 0.6 g lysine to 75 ml 0.05mol/l nickel chloride solution, continuously heating and stirring at 40degrees Celsius water bath until dissolved, dripping ammonia water to a pH of 9, stirring for 0.5 hour, adding the obtained solution into 100 ml reaction kettle at 140-200degrees Celsius for 4-8 hours, naturally cooling, centrifuging the sample, washing and drying, (b) heating the sample after drying at 300-500degrees Celsius under the air atmosphere according to the heating rate of 2degrees Celsius/minute and calcining for 2-5 hours, (c) adding 0.002-0.041 g ferric chloride, 0.03-0.05 g thiourea, 0.01-0.05 g graphene oxide and 0.03 g sample obtained in step (b), adding to 60 ml deionized water, ultrasonically processing for 20 minutes, stirring in a 40degrees Celsius water bath for 0.5 hour, adding the obtained mixed solution into a 100 ml reaction kettle, heating the reaction kettle at 140-180degrees Celsius for 8-16 hours, naturally cooling, centrifuging the sample, washing and drying, and (d) mixing 0.2-0.5 g sublimated sulfur and 0.05-0.1 g sample obtained in step (c), grinding for 0.5 hours, calcining at 300-500degrees Celsius for 2-6 hours under the protection of inert gas and naturally cooling down. INDEPENDENT CLAIMS are also included for: (1) The high-efficiency water oxidation iron-nickel sulfide/reduced graphene oxide electrocatalyst; and (2) A use of the electrocatalyst for preparing an electrocatalytic electrode.