Graphene microtubes - New type of carbon materials

Abstract

The possibility of obtaining a graphene coating on non-flat (cylindrical) surfaces, namely, copper fibers, is shown. Graphene coating is characterized by SEM and KR methods. The possibility of its removal by etching out the carrier substrate is demonstrated. Along with the growth of graphene, the formation of impurity particles on the surface of the copper fiber, which worsen the quality of graphene. The placement of fiber in a copper casing allowed to improve the quality of graphene coating on copper fibers and to suppress the formation of impurity structures on their surfaces.