▎ 摘　　要

NOVELTY - Porous graphene includes 2-9 atomic layers, each having graphene lattice and voids having pore size of 2-10 nm. The aperture area of porous graphene is 5-40% with respect to total area of each atomic layer. USE - Porous graphene (claimed). ADVANTAGE - The porous graphene has uniform diameter distribution and different interlayer distance. The graphene quantum dots have high light-emitting efficiency, excellent crystal form and reduced defects. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) graphene quantum dots, which have 1-5 atomic layers with quantum dot size of 2-10 nm; and (2) manufacture of porous graphene and graphene quantum dots, which involves using graphite material and electrolyte.