| abstract |
The invention discloses graphite with the surface modified by azido groups and a preparation method thereof. The method comprises the steps: in an electrolyte solution with the azide ion concentration of 1 mol/L to 2 mol/L, employing a three-electrode system, with a graphite sheet as an anode, a platinum sheet electrode as a cathode and a saturated calomel electrode as a reference electrode, and applying a constant electric potential of 0.5-2 V or a constant current of 10-60 mA to treat the graphite sheet electrode for 10-60 min; soaking the treated graphite sheet electrode in methanol, and then drying at the room temperature to obtain the graphite sheet with the surface modified by the azido groups. The method of the invention has high selectivity, does not introduce other groups or atoms to the surface of graphite, allows the reaction to be carried out without cooling conditions, has low-price raw materials, does not employ organic solvents, and only needs one step reaction. |