国家/地区 韩国（3） 美国（3） 欧洲专利局（EPO）（2）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC C01B031/04（3）
发明人 LEE S（3）
公开年
申请年
专利权人

Making porous graphene membrane comprises oxidizing surface of multilayer graphene, reducing oxidized surface to carry out reductive etching, and repeatedly performing series of the above steps twice until nanopores are formed in graphene.

JHON Y M, JHON Y I, LEE S, YOUNG I J, IN J Y

Graphene membrane film used in system for purifying solvent, comprises several plate-shaped laminated graphene flakes containing physical bond or chemical bond for connecting pair of layers, and has preset thickness and oxygen content.

LEE S H, KIM S J, SEO D K, KIM Y H, GEONHUI L, LEE S, KIM S

Making graphene powder useful in carbon-based electrical devices involves preparing graphene solution in which graphene particles are dispersed in a solvent; aggregating the particles; separating aggregated particles from solvent and drying.

LEE S, LEE D, SEO B, BYUN N