We provide a novel strategy to eliminate the epoxy group from
the basal plane of graphene platelets. Given that the current
reduction methods are unsatisfactory to clean the epoxides or
sometimes cause undesirable structure deformations, the
proposed strategy restores the original hexagonal carbon
network without creating other new defects. To the best of our
knowledge, the electric field mediated graphene oxide (GO) reduction has not yet been systematically investigated. The
capability would permit the improvement of existing GO
reduction methods and assist in the fabrication of high-quality
graphitic materials.