Carbon nanofiber

![Stacked-cup carbon nanofiber: electron micrograph (left) and model (right).[1]](/uploads/202501/03/Stacked_cup_carbon_nanofiber5623.jpg)
Carbon nanofibers (CNFs), vapor grown carbon fibers (VGCFs), or vapor grown carbon nanofibers (VGCNFs) are cylindric nanostructures with graphene layers arranged as stacked cones, cups or plates. Carbon nanofibers with graphene layers wrapped into perfect cylinders are called carbon nanotubes.