▎ 摘　　要

NOVELTY - Graphene oxide is obtained by substituting hydroxyl group of graphene oxide with alkyloxy-carbonyl group (I). USE - Graphene oxide is used for preparing preparation of soluble graphene solution (claimed). ADVANTAGE - The graphene solution using graphene oxide has excellent solubility and storage stability. DETAILED DESCRIPTION - Graphene oxide is obtained by substituting hydroxyl group of graphene oxide with alkyloxy-carbonyl group of formula: -O-C(=O)-O-R (I). R=1-30C linear alkyl, branched alkyl, cyclic alkyl, aryl or heteroaryl. An INDEPENDENT CLAIM is included for preparation of soluble graphene solution using graphene oxide.