Facile synthesis of three-dimensional porous carbon with high surface area by calcining metal–organic framework for lithium-ion batteries anode materials

Abstract

A simple and convenient approach to prepare a three-dimensional (3D) porous carbon with a high surface area of 1880 m² g⁻¹ as an anode material for lithium-ion batteries (LIBs) was developed by calcining the Zn₄O(BDC)₃ (MOF-5, BDC = 1,4-benzenedicarboxylate) at 900 °C for 1 h. The resulted 3D porous carbon released an initial discharge of 2983 mA h g⁻¹ and a charge of 1084 mA h g⁻¹ at a current density of 100 mA g⁻¹. The as-prepared porous carbon materials still maintained a high specific capacity of 1015 mA h g⁻¹ after 100 cycles. The 3D porous carbon materials also exhibited superior cyclic stability and reversible capacity. The good performance of the porous carbon derived from MOF-5 made it a promising anode material for LIBs or for use as a good matrix material for LIBs.