hollow carbon nanofibers (HCNFs) show remarkable potential for energy storage owing to
their improved conductivity and high specific capacitance. A novel approach is used to
synthesize (Ni-Fe)-PC on the outer and inner surfaces of HCNFs. The synthesized material's
substantial electrochemical performance is owing to the co-existence of numerous Ni and Fe-
based redox-active species with porous carbon and open channels from MOF-derived …