Graphite intercalation
AssigneeMobil Oil Corporation
InventorPaul G. Rodewald
Life of this patent
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Abstract
Intercalation of a Lewis acid fluoride in graphite is effected in the presence of gaseous fluorine. The reaction results in new compositions useful as catalysts and as atmospheric pressure containers for normally gaseous Lewis acid fluorides.
Claims12
A method of intercalating a Lewis acid fluoride in graphite which comprises contacting graphite with a Lewis acid fluoride, having a boiling point below about 300.degree.C., of an element of Group II, IIIA, IV, V or VIB of the Periodic Table in the presence of fluorine at a temperature within the approximate range of 15.degree. to 150.degree.C for at least a period of time to effect a weight increase in the graphite, the relative amount of said Lewis acid fluoride and fluorine being between about 30 to 1 and about 2 to 1 on a weight basis.
A composition consisting essentially of graphite having intercalated in the lattice thereof between about 5 and about 50 weight percent of boron trifluoride.
A composition consisting essentially of graphite having intercalated in the lattice thereof between about 5 and about 50 weight percent of phosphorus pentafluoride.
Dependencies are inferred from the claim text.