Three-dimensional porous carbon/Co3O4 composites derived from graphene/Co-MOF for high performance supercapacitor electrodes

The three-dimensional porous carbon (3DPC)/Co3O4 composites were prepared via pyrolysis of 3D graphene/Co-MOF precursor. The rich carbon content, amorphous state and hierarchical porous structure remarkably accelerated electron and ion transport. The oxygen-deficient Co3O4 state provided more active sites. Consequently, the 3DPC/Co3O4 electrode delivered enhanced capacitive performance owing to these advantages, which exhibited a high specific...