▎ 摘　　要

NOVELTY - Oxide graphite is added to water to obtain oxide graphene colloid, in which sodium hydroxide solution is added. Hydrous ruthenium trichloride is added to water and stirred to obtain ruthenium trichloride solution. The oxide graphene colloid is added to the ruthenium trichloride solution to form mixed solution, in which sodium hydroxide solution is added. The mixed solution is poured into a hydrothermal kettle to obtain graphene-loaded ruthenium oxide suspension, which is filtered, washed, dried and burned to obtain graphene-loaded ruthenium oxide electrode material. USE - Preparation of graphene-loaded ruthenium oxide electrode material used for supercapacitor. DETAILED DESCRIPTION - Oxide graphite is added to water to perform ultrasonic dispersion to obtain uniformly dispersed monolithic oxide graphene colloid. Sodium hydroxide solution is added to the oxide graphene colloid. Hydrous ruthenium trichloride is added to water and stirred to obtain ruthenium trichloride solution. The oxide graphene colloid is added in drops to the ruthenium trichloride solution to form mixed solution. The volume ratio of oxide graphene colloid and ruthenium trichloride solution is (10-40):1. Sodium hydroxide solution is added to the mixed solution. The pH of mixed solution is 7. The mixed solution is poured into a hydrothermal kettle at 120-200 degrees C for 1-24 hours to obtain graphene-loaded ruthenium oxide suspension. The obtained suspension is filtered, washed with water, dried and burned in air at 150-200 degrees C for 2-24 hours to obtain graphene-loaded ruthenium oxide electrode material.