| 초록 |
Carbonized polypyrrole-coated SnO2/Co3O4 nanofiber-decorated three-dimensional graphene (CPSC-3-rGO) was fabricated using single-nozzle co-electrospinning, freeze-drying, and thermal reduction. The specific capacitance of the CPSC-3-rGO was 446 F g-1, which is larger than that of the other 3D nanomaterials investigated. In addition, Supercapacitors with two symmetrical CPSC-3-rGO electrodes were fabricated from two layers of CPSC-3-rGO separated by a polyvinyl alcohol (PVA)-H2SO4 polymer electrolyte gel and encapsulated in polyethylene terephthalate (PET) membranes. These devices exhibited excellent electrical performance, which was preserved following repeated mechanical deformation. |
