Designing a hierarchical structure of nickel-cobalt-sulfide decorated on electrospun N-doped carbon nanofiber as an efficient electrode material for hybrid supercapacitors. - Abdel-Salam, Ahmed I.; Attia, Sayed Y.; Mohamed, Saad G.; El-Hosiny, Fouad I.; Sadek, M.A.; Rashad, M.M. (International Journal of Hydrogen Energy, 2023)