Dependence of the fluorination intercalation of graphene toward high-quality fluorinated graphene formation.

ABSTRACT: A direct gas-solid reaction between fluorine gas (F₂) and graphene is expected to become an inexpensive, continuous and scalable production method to prepare fluorinated graphene. However, the dependence of the fluorination intercalation of graphene is still poorly understood, which prevents the formation of high-quality fluorinated graphene. Herein, we demonstrate that chemical defects (oxygen group defects) on graphene sheets play a leading role in promoting fluorination intercalation, whereas physical defects (point defects), widely considered to be an advantage due to more diffusion channels for F₂, were not influential. Tracing the origins, compared with the point defects, the unstable hydroxyl and epoxy groups produced active radicals and the relatively stable c

SUBMITTER: Fan K 

PROVIDER: S-EPMC6552966 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature