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Graphite fluoride is a kind of graphite interlayer 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 solid, structural and non stoichiometric fluorocarbon experimental formula (CFX) n. the reaction temperature depends on the type of raw materials, the design and application of the reactor and the desired degree of fluorination.