▎ 摘 要
NOVELTY - Oxidation of graphite is controlled using oxidant in presence of acid, to obtain a few-layer graphene solution. USE - Preparation of few-layer graphene solution used for preparing few-layer graphene solid for preparing few-layer graphene film (both claimed). DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of few-layer graphene solid; and (2) preparation of few-layer graphene film.