ABSTRACT
Graphene fibers have formed a new group of materials, which have been acknowledged to possess special significances, due to their unique properties. The graphene aerogel fibers exhibited a type IV nitrogen adsorption/desorption isotherm. A similar wet-spinning assembly approach was reported to fabricate graphene fibers with Graphene oxide (GO) solutions combined with chemical reduction. Graphene fibers could be obtained by reducing the GO fibers with hydroiodic acid as the reducing agent. In a separate study, graphene fibers were fabricated by using the wet-spinning and coagulation process, with focus on the understanding of the processing-structure-property relationship. A coaxial two-capillary spinning strategy was developed to continuously fabricate graphene-based hollow fibers with well-controlled morphology. Mechanical properties of the graphene ribbons had a close relation to the orientation of the wrinkles. Chemical vapor deposition graphene films have been used to fabricate graphene fibers through self-assembly.
