fig8

Figure 8. Schematic showing graphene-based or composite fibers supercapacitors. (A) Morphology and application of coaxial polyelectrolyte-wrapped graphene/CNT core-sheath fibers. Reproduced with permission^[96]; (B) The fabrication of Fe₂O₃-x@RGO asymmetric fiber electrodes and supercapacitors. Reproduced with permission^[52]; (C) Diagram of the fabrication process of SnO₂ QDs@PGF electrode and demonstrations. Reproduced with permission^[98]; (D) Schematic diagram of Ni₃S₂-NiGFs asymmetric FSSCs. Reproduced with permission^[99]. CNT: Carbon nanotubes; RGO: reduced graphene oxide; FSSCs: fiber-shaped supercapacitors.