▎ 摘 要
NOVELTY - Method for preparing graphene microspheres loaded with metal organic framework involves (a) adding the metal salt to the graphene oxide aqueous solution, and stirring ultrasonically to make the salt concentration 0.01-0.1 mol/l to obtain a stable mixed dispersion, where graphene oxide concentration is 1-10 g/l, and the ultrasonic time is 0.5-2 hours, the metal salt is a soluble inorganic salt of zinc, iron, cobalt, nickel or copper, (b) using the atomization drying method to obtain graphene oxide microspheres containing metal ions, and (c) immersing the above-mentioned microspheres in a solvent containing organic ligands, and converting into graphene microspheres supporting a metal organic framework by a solvothermal method. USE - The method is used for preparing graphene microspheres loaded with metal organic framework which is used as a negative electrode material for lithium ion batteries (all claimed), and in sensing, energy storage and catalysis. ADVANTAGE - The method prepares graphene microspheres with rich multi-level structure, abundant active sites, controllable pore structure and excellent conductivity.