▎ 摘　　要

NOVELTY - Preparing graphene load nano-manganese oxohydroxide composite material comprises mixing manganese chloride tetrahydrate graphite oxide with isopropanol to prepare solution; and processing ultrasonic uniform dispersion; adding potassium permanganate and water; reacting at constant temperature for a while in the sealing condition to obtain black deposition; adding the black deposition to glycol after centrifuging and cleaning; reacting at constant temperature in the sealing condition; centrifuging, cleaning, drying and grinding the product to obtain the composite material. USE - Method for preparing graphene load nano-manganese oxohydroxide (MnOOH) composite material. ADVANTAGE - The method is simple, and can prepare the graphene load nano MnOOH composite material with good catalysis in mild condition.