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.