▎ 摘　　要

NOVELTY - Preparing graphene based on in-situ generated lignin comprises carrying out high temperature pyrolysis process for lignin by using high temperature sintering technology and lignin as carbon source, and then cooling. USE - The method is useful for preparing graphene based on in-situ generated lignin. ADVANTAGE - The method: is simple; has good repeatability; avoids use of organic solvent, dispersant, chemical reducing agent and stabilizing agent; is environmentally-friendly, economical; and saves energy. The graphene: forms a crystal sheet layer structure; is a single-layer graphene, multilayer graphene or a mixture of the two; has good dispersibility and stability, and has industrial production prospect and application value. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene based on in-situ generated lignin, prepared by above method.