国家/地区 韩国（3）
IPC部 C（3） B（2）
IPC大类 C01（3）
IPC小类 C01B（3）
IPC C01B031/04（3）
发明人 JUNG Y G（2） YOO H J（2）
公开年 2017（3）
申请年 2015（3） 
专利权人 POSCO（3）

Separating graphene oxide for producing graphene coated steel sheet, comprises preparing a graphene oxide aqueous solution, adjusting acidity by adding acid/base, and separating supernatant and lower layer solution.

JIN Y H, GYUN J Y, YOO H J, JUNG Y G

Graphene-coated steel sheet comprises steel sheet coated with coating composition comprising binder, solvent and alkyl-reduced graphene oxide which is reduction product of graphene oxide and alkylamine.

YOO H J, JUNG Y G

Functionalized graphene nanoplatelet comprises functional molecules, functional vapor, and graphene platelets, where the functional molecules comprise aromatic hydrocarbon or heterocyclic ring substituted with polar functional group.

HONG S H, JUN G H, KIM J H, RYU H J