▎ 摘　　要

NOVELTY - Preparation of graphene involves adding ethanol to anolyte which is a mixture of ionic liquid and calcium oxide, and electrolyzing in presence of ionic liquid as catholyte. USE - Preparation of graphene (claimed) used as two-dimensional carbon nanomaterial. ADVANTAGE - The preparation method is easy, simple and carried out under mild reaction condition using suitable types of ionic liquids to cooperate with platinum electrodes to carry out dual catalysis to prepare graphene.