▎ 摘　　要

NOVELTY - Preparing graphene powder material involves adding the graphite oxide in organic alkali solution, ultrasonically dispersing to obtain the graphene dispersion liquid, adding organic boron hydride to obtain the graphene dispersion liquid, rear stirring process solid-liquid separation, drying to obtain the product. USE - For preparing a graphene powder material (claimed), used in bio-sensing, electronic, electrochemical, solar cells. ADVANTAGE - The reaction condition is mild, process is simple, the period is short, graphene impurity content is low, has high efficiency, economic and environment-friendly, and it is easy to realize large-scale production.