Metal nanoparticle-directed NiCo₂O₄ nanostructure growth on carbon nanofibers with high capacitanc

Metal nanoparticles (Ni, Co) decorated on an electrospun carbon nanofiber surface directed the growth of NiCo₂O₄ into nanorod and nanosheet morphologies. These metal nanoparticles served as a transition layer to strengthen the interface and promote charge transfer between carbon and NiCo₂O₄ to achieve a high capacitance of 781 F g⁻¹.