▎ 摘 要
NOVELTY - A high-quality graphene is prepared by adding carboxylic acid, carbonyl-containing compound, dry ice, liquid ammonia, carbonate salt, and/or amine-containing compound to graphite, and peeling. USE - Method for preparing high-quality graphene (claimed). ADVANTAGE - The method has low cost and simple operation. Graphene has good conductivity with less defects.