Nitrogen-rich MOF derived porous Co3O4/N–C composites with superior performance in lithium-ion batteries†
Abstract
Porous N-doped carbon coated Co3O4 fish-scale structures were successfully fabricated via chemical transformation of a well-designed N-rich Co-MOF at 500 °C in a nitrogen atmosphere. Due to the synergistic effect between the assembled porous Co3O4 nanoparticles and the N doped C coating, the sample exhibited excellent electrochemical properties as an anode material for lithium-ion batteries. The specific capacity can remain at a stable value of about 612 mA h g−1 at a current of 1000 mA g−1 within 500 cycles.