▎ 摘　　要

NOVELTY - Graphene preparation involves passing feed solution comprising graphite through an inlet, an outlet, and a high pressure homogenizer comprising micro-channel connecting between the inlet and outlet. The high pressure homogenizer also comprises a micrometer-scale diameter. The feed solution flows into the inlet of the high-pressure homogenizer under a pressure of 400-2000 bars through the micro-channel. USE - Method for preparing graphene. ADVANTAGE - The method prepares the graphene in a simple manner having large area using high pressure homogenization with excellent efficiency. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic scanning electron microscopic photograph of the graphene.