▎ 摘　　要

NOVELTY - Preparing high-yield fluorinated graphene involves wiehing graphite fluoride and intercalation agent in ratio of 1:(0.1-1), mixing graphite fluoride and intercalation agent, sealing in a built-in container, placing sealed container in a reaction vessel, sealing reactor, and reactor evacuating. The liquefying carbon dioxide is injected into the reactor, reached supercritical state of carbon dioxide, holded pressure, reduced pressure so that the pressure in the reactor drops to atmospheric pressure. USE - Method for preparing high-yield fluorinated graphene (claimed). ADVANTAGE - The method enables to prepare high-yield fluorinated graphene in simple and cost-effective manner, which has high yield, high regularity, and has high quality. DETAILED DESCRIPTION - Preparing high-yield fluorinated graphene involves wiehing graphite fluoride and intercalation agent in ratio of 1:(0.1-1), mixing graphite fluoride and intercalation agent, sealing in a built-in container, placing sealed container in a reaction vessel, sealing reactor, and reactor evacuating. The liquefying carbon dioxide is injected into the reactor, reached supercritical state of carbon dioxide, holded pressure, reduced pressure so that the pressure in the reactor drops to atmospheric pressure. The supercritical carbon dioxide is subjected into the circulating flow state, the intercalation agent is gradually extracted, followed by constant temperature cycle dynamic holding pressure, and then down to atmospheric pressure, repeated for 2-5 times. The intercalation agent is added in the reaction vessel which is extracted, built-in vessel is taken out to obtain final product.