Highly exfoliated graphite fluoride as a precursor for graphene fluoride dispersions and films

We synthesized highly exfoliated graphite fluoride of approximate composition C
₂
F by treating highly exfoliated graphite with ClF
₃
. The formed material was found to be dispersible in solvents giving 1-5 layered fluorinated graphene. Dispersions successfully formed in polar organic solvents capable of establishing hydrogen bonds. The highest stability is achieved in branched alcohols such as tert-butanol. The dispersions may be further processed into thin films by vacuum filtration technique. Also, composite multilayered films of graphene fluoride and graphene may be prepared.