▎ 摘　　要

N-doped porous carbon coated graphene ( rGO) sheets ( denoted as NPCGS) have been synthesized through a facile pyrolysis of an in situ grown zeolitic imidazolate framework ( ZIF) on graphene oxide ( GO). When tested as an anode material for lithium-ion batteries, the NPCGS exhibited superior electrochemical performance with a specific capacity of 1040 mA h g(-1) after 200 cycles at a discharging current density of 0.5 A g(-1) and excellent rate performance. The fascinating electrochemical performance of the NPCGS can be attributed to the synergistic effect of NPC and graphene in terms of N-doping, rich porosity and high electrical conductivity. The novel N-doped porous carbon coated graphene sheet material can be extended for application in sensors, electronic devices, catalysts, hydrogen storage and other systems.