Hierarchically structured Co3O4@carbon porous fibers derived from electrospun ZIF-67/PAN nanofibers as anodes for lithium ion batteries†
Abstract
Continuous porous carbon fibers with uniformly distributed Co3O4 hollow nanoparticles (NPs) have been prepared by direct electrospinning of ZIF-67 NPs followed by a thermal treatment. Benefiting from the unique structural and compositional advantages, ES-CNCo3O4 with hierarchical porous structure shows excellent electrochemical performance as an anode material for lithium ion batteries.