Patent ID: 11866334
Assignee: GENERAL GRAPHENE CORP.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 11:
12. A method for forming graphene, said method comprising:
providing a continuous graphene formation system including a furnace portion, an infeed portion having one or more infeed tunnels disposed upstream and laterally adjacent to an entrance of said furnace portion, and an outfeed portion having one or more outfeed tunnels disposed downstream and laterally adjacent to an exit of said furnace portion;
scavenging, in presence of a scavenging environment including a substrate gas scavenging composition and a scavenging temperature inside said one or more infeed tunnels, a substrate sheet to produce an at least partially contamination-depleted surface;
annealing, in presence of an annealing environment including an annealing gas composition and an annealing temperature inside said furnace portion, said substrate sheet having said at least partially contamination-depleted surface to produce an annealed surface;
producing graphene, in presence of a producing environment including a producing composition and a producing temperature in said furnace portion downstream from said annealing environment, on said substrate sheet having said annealed surface to produce a graphene deposited surface; and
cooling, in a cooling environment including said substrate gas scavenging composition in said one or more outfeed tunnels, said substrate sheet having said graphene deposited surface to produce a relatively cool surface.