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Graphite fluoride is a kind of graphite intercalation compound prepared by the direct reaction of carbon and fluorine. Graphite fluoride is a new functional material with low surface free energy and good thermal and chemical stability. Graphite fluoride is a kind of solid, structural, non stoichiometric fluorocarbon experimental formula (CFX) n. the reaction temperature depends on the type of raw materials, the design of the reactor, the use and the desired degree of fluorination.