▎ 摘 要
NOVELTY - Producing graphitic film involves providing a suspension of both graphene oxide and aromatic molecules dispersed or dissolved in a liquid medium, where graphene oxide-to-aromatic molecule weight ratio is from 1/100 to 100/1. The aromatic molecules are selected from petroleum heavy oil or pitch, coal tar pitch, a polynuclear hydrocarbon, a halogenated variant thereof, or a combination. The both graphene oxide and the aromatic molecules contain a plane of hexagonal carbon atoms or fused aromatic rings. The suspension is dispensed and deposited onto a surface of a supporting solid substrate to form a wet layer of graphene oxide and aromatic molecules, where the dispensing and depositing procedure includes subjecting the suspension to an orientation-inducing stress or strain. The liquid medium is partially or completely removed from the wet layer to form a dried layer of graphene oxide and aromatic molecules. USE - Method for producing a graphitic film having a thickness from 2-5 mm. ADVANTAGE - The method rapidly produces the graphitic film in a simple, cost-effective and eco-friendly manner with significantly improved degree of structural ordering. DETAILED DESCRIPTION - Producing graphitic film involves providing a suspension of both graphene oxide and aromatic molecules dispersed or dissolved in a liquid medium, where graphene oxide-to-aromatic molecule weight ratio is from 1/100 to 100/1. The aromatic molecules are selected from petroleum heavy oil or pitch, coal tar pitch, a polynuclear hydrocarbon, a halogenated variant thereof, or a combination. The both graphene oxide and the aromatic molecules contain a plane of hexagonal carbon atoms or fused aromatic rings. The suspension is dispensed and deposited onto a surface of a supporting solid substrate to form a wet layer of graphene oxide and aromatic molecules, where the dispensing and depositing procedure includes subjecting the suspension to an orientation-inducing stress or strain. The liquid medium is partially or completely removed from the wet layer to form a dried layer of graphene oxide and aromatic molecules. The dried layer of aromatic molecules is heat treated at 20-3000?oC. The graphene oxide and aromatic molecules are cross-linked, merged or fused together to form the graphitic film comprising larger graphene sheets or graphene planes that are substantially parallel to each other. An INDEPENDENT CLAIM is included for a graphitic film, which comprises graphene sheets that are cross-linked by molecules of a polynuclear hydrocarbon selected from naphthalene, anthracene, phenanthrene, tetracene, chrysene, triphenylene, pyrene, pentacene, benzo-pyrene, corannulene, benzo-perylene, coronene, ovalene, benzo-fluorene, a derivative having a substituent on a ring structure, a chemical derivative or a combination and the graphene sheets substantially parallel to each other.