▎ 摘　　要

NOVELTY - Preparing controllable graphene by using an electrode and magnetic field to adjust ion intercalation involves placing the electrolytic device in the room temperature environment and then the graphite sheet is placed at a 2-3 cm distance as the electrolytic electrode, selecting electrolyte, stabilizing and keeping for 1-3 hours at the square wave voltage of 5-15 V, adjusting the electrode distance to 2-30 cm, then adding the 0-0 4T magnetic field auxiliary, the control voltage is 5-15V to peel the graphite sheet, then filtering, washing drying to obtain the controllable graphene. USE - Method for preparing controllable graphene by using an electrode and magnetic field to adjust ion intercalation. ADVANTAGE - The method has provided high-quality, high-yield graphite, graphene oxide, and quantum dots.