▎ 摘　　要

NOVELTY - Reutilization of cathode decommissioned graphite, comprises placing cathode graphite decommissioned from a fully discharged waste battery in sodium hydroxide solution, stirring, filtering, washing and drying to obtain graphite powder, placing the graphite powder in a quartz reactor for microwave shock treatment, introducing argon under airtight conditions to adjust power and temperature of the solid-state microwave source, many microwave shock circulating, treating the graphite powder by improved Hummers method to obtain graphene oxide suspension. USE - The method is useful for reutilization of cathode decommissioned graphite. ADVANTAGE - The method: solves resource reuse problem of large amount of lithium battery cathode graphite in current industrial use. The snowflake graphene modified α-manganese(II) oxide catalyst has special appearance and excellent performance; utilizes improved and regenerated graphene as an excellent modifier; and solves the shortcomings of transition metal oxides including low catalytic performance, synthesis agglomeration and difficult regeneration compared with ordinary α-manganese(II) oxide. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: graphene oxide suspension prepared by reutilization of cathode decommissioned graphite; nowflake graphene modified α-manganese(II) oxide catalyst. The catalyst is prepared by placing graphene oxide suspension in container and adding deionized water to obtain reaction solution, adding manganese(II) sulfate monohydrate into reaction solution and stirring until solid dissolves, dropwise adding potassium permanganate solution, continue to stir 1-2 hours to complete preliminary reaction to obtain mixed solution, heating the mixed solution at 150 ℃ for 12 hours to complete the nucleation process, after the reaction of the solution stops, performing hydrothermal, taking out precipitation, washing and drying; and nowflake graphene modified α-manganese(II) oxide catalyst prepared by above method.