Novel route for preparing graphene using ethanol as liquid phase by planetary ball mill wet method

The invention provides a novel rout for preparing graphene using ethanol as liquid phase by a planetary ball mill wet method. The preparation method comprises the following steps: using expanded graphite after being calcinated at a high temperature as a raw material, using ethanol as an organic solution, and grinding and mechanically exfoliating the expanded graphite by the planetary ball mill wetmethod to obtain the graphene with a relatively complete sheet layer and relatively large crystal size. The method has the advantages of simple production process and low cost. The prepared graphenehas fewer defects, more complete sheet layers, and broader prospect for the future application of the graphene compared with dry graphene. 本发明提供了种以乙醇为液相行星球磨机湿法制备石墨烯的新途径。该制备方法具体包括：以高温煅烧后的膨胀石墨为原料，以乙醇为有机溶液，经过行星球磨机湿式研磨机械剥离膨胀石墨得到片层比较完整，晶体尺寸较大的石墨烯。本方法生产工艺简单，成本低，制备得到的石墨烯比干式石墨烯缺陷更少，片层更完整，对以后石墨烯的应用提供更广阔的前景。