▎ 摘　　要

NOVELTY - Fluorinated expanded graphite having high fluorine content, is prepared by carrying out high-temperature gas-phase fluorination of expanded graphite as carbon source. The resultant material is mixed with organic-intercalation agent, to obtain hydrothermal fluorinated expanded graphite/organic composite. The obtained product is milled and ultrasonically treated to obtain fluorinated graphene dispersion. The obtained dispersion is centrifuged, and the supernatant liquid is collected, washed, filtered and dried to obtain fluorinated graphene having 5-layer thickness. USE - Preparation of fluorinated graphene (claimed). ADVANTAGE - The method efficiently and economically provides high yield of fluorinated graphene by simple method.