▎ 摘　　要

NOVELTY - Oxygen-functionalized graphene nanoflakes (26) comprise a single-crystal graphene nanoflakes of 5-20 atomic planes comprising a surface oxygen-functionalization. The degree of oxygen functionalization of the nanoflakes is 6-25 atomic% oxygen based on weight of graphene nanoflakes (GNF). USE - Oxygen-functionalized graphene nanoflakes are used in polyvinyl alcohol nanocomposites and polyethylene glycol coated GNF used for bio-application. Can also be used in catalysis and printing or patterning process. ADVANTAGE - The oxygen-functionalized graphene nanoflakes are highly crystalline, pure and stable in fluid without adding a stabilizing agent and have excellent nano-scale properties and specific graphene properties such as electrical, thermal transporting properties and structure transporting other chemical functionalities or nanoparticles. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) suspension (36) of oxygen-functionalized graphene nanoflakes; and (2) production of oxygen-functionalized graphene nanoflakes. DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a process for producing oxygen functionalized graphene nanoflakes. Thermal plasma reactor (5) Carbon source (12) Oxygen-functionalized graphene nanoflakes (26) Polar solvent (32) Suspension of oxygen-functionalized graphene nanoflakes (36)