国家/地区 中国（4）
IPC部 B（4） C（3）
IPC大类 B01（4） C01（3）
IPC小类 B01J（4）
IPC B01J019/08（4）
发明人
公开年 2020（4）
申请年 2020（3） 
专利权人

Preparation of graphene involves using graphene production device, delivering gas to gap between cathode graphite rod and anode graphite rod, using graphite rods, inputting gas, and producing graphene through direct current arc discharge.

SUN F, SUN Q

Preparing graphene quantum dots under coupling action of magnetic field and ultrasonic field, comprises e.g. preparing graphene oxide, and adding graphene oxide to deionized water.

BAO B, ZHU X, GAO H

Preparing porous graphene involves dissolving ferrocene, cobaltocene or nickelocene in ethanol solution, adding aqueous solution of graphene oxide, dispersing, freeze-drying, heat-treating in carbonization furnace, washing and drying.

MA C, WANG Y, ZHAO Y

Device for preparing graphene composite material, has fixed graphite rod whose upper end and movable graphite rod whose lower end that are respectively connected with power cord, and power cord that is connected with external power source.

DU W