国家/地区 中国（2）
IPC部 A（3）
IPC大类 C01（3）
IPC小类 C01B（3）
IPC C01B032/186（3）
发明人
公开年 2021（3）
申请年 2020（2） 
专利权人

Nano-patterning graphene used in respiratory masks, by cleaning monolayer of graphene sheet, transferring graphene on silicon dioxide/silicon substrate, depositing metal film of silver or gold on substrate, annealing silver or gold nanoparticles and performing aqua-regia treatment.

KUMAR B

Noise reduction earplug comprises shell comprising substrate and graphene coating coated on outer side of substrate, and having inner portion filled with sound absorbing material.

RAN Y

Formation of porous graphene layer used as semipermeable membrane, involves providing catalytically active substrate comprising copper-nickel alloy substrate, to catalyze graphene formation under chemical vapor deposition conditions.

CHOI K, PARK H G, HEIGHT M, CHOI K J, PARK H, PIAO H