▎ 摘　　要

NOVELTY - Preparing graphene by reduction of carbon dioxide involves passing hydrogen dioxide gas into closed reaction vessel in presence of electrode in reaction vessel for conducted high-voltage discharge of carbon dioxide, and hydrogen to generate graphene. USE - Method for preparing graphene by reduction of carbon dioxide (claimed). ADVANTAGE - The method enables to prepare graphene by reduction of carbon dioxide is easy to prepare, cost-effective, has small graphene defect, high quality and achieves large-scale production.