国家/地区 美国（3） 中国（2） 欧洲专利局（EPO）（2） 印度（2） 日本（2） 韩国（2） 世界知识产权组织（2）
IPC部 B（3） C（3）
IPC大类 B01（3） C01（3）
IPC小类 B01D（3）
IPC C01B032/19（3）
发明人
公开年 2021（3）
申请年 2020（3）
专利权人

Preparing graphene based on mixed inorganic acid solvent by e.g. pre-treating raw material graphite powder, preparing mixed inorganic acid solvent, performing graphene peeling treatment, and extracting graphene product from graphene mixture.

QIAN X, MA C

Face mask e.g. surgical mask, comprises mask component for covering wearers mouth and nose and comprising air-permeable outer layer, inner layer and graphene layer, and fastener for connecting mask component to wearer.

JANG B Z, ZHAMU A

Making graphene oxide from kish graphite comprises e.g. provision of kish graphite, pre-treating kish graphite, intercalation graphite with persulfate salt and acid, expansion of intercalated graphite and oxidatizing expanded kish graphite.

VU T T, SUAREZ SANCHEZ R, SUAREZ S R, VU T, SANCHEZ R S