Preparation method of sodium-doped multilayer graphene

The invention relates to graphene preparation, in particular to a preparation method of sodium-doped multilayer graphene. The method adopts simple synthesis steps and requires no transfer. The graphene preparation, in particular to a preparation method of sodium-doped multilayer graphene is characterized by comprising steps as follows: 1) preparing an intermediate; 2) obtaining a spin-coating liquid; 3) producing a quartz plate; 4) obtaining a graphene film. Compared with a traditional graphene preparation method, the preparation method of the sodium-doped multilayer graphene has the advantages that agent consumption is low, the synthesis method is simple, a device is convenient, the method is pollution-free and environment-friendly, the cost is low, the thickness and the area of the graphene film are controlled by controlling the concentration and the rotating speed of the intermediate in the preparation process, and the quality of the graphene film is easier to control during operation. 钠掺杂多层石墨烯制备方法,涉及石墨烯制备