Preparation method for edge-fluorinated graphite via mechanic-chemical process
AssigneeUnist (Ulsan National Institute of Science and Technology)
InventorsJong-Beom Baek, In-Yup Jeon
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Abstract
Disclosed is a method for producing edge-functionalized graphite or graphene with fluoro groups. According to the method, graphite is pulverized into smaller pieces and is then allowed to react with a surrounding material containing fluorine or a fluorocarbon compound. The method enables the production of graphite or graphene functionalized with fluoro groups, which could not be achieved by conventional mechanochemical methods. In addition, the method is carried out in a very simple and economical manner and is suitable for large-scale production.
Claims10
A method for producing edge-functionalized graphite or graphene with fluoro groups, comprising (i) mechanically pulverizing graphite under an inert atmosphere in a closed container;
- (ii) then, evacuating the inert atmosphere, and (iii) reacting the pulverized graphite with fluorine or a fluorocarbon compound at a pressure of 2 to 20 bar, wherein the fluorocarbon compound is trifluoromethane, tetrafluoromethane, trifluoroethane, tetrafluoroethane, chlorotrifluoroethane, dichlorodifluoroethane, pentafluoroethane, hexafluoroethane or a mixture thereof.
Dependencies are inferred from the claim text.