国家/地区 中国（3）
IPC部 C（3）
IPC大类 C01（3）
IPC小类 C01B（3）
IPC C01B032/184（2）
发明人 DANG Y（3）
公开年 2017（3）
申请年 2016（2） 
专利权人 DONG L（2）

Preparing powdery graphene film by air circulation, involves injecting graphene powder debris into circulating air duct and pressurizing by air stream, uniformly diffusing airflow to annular belt support and sealing graphene adhesion area.

DANG Y, DONG L, DONG T, ZHANG F, ZHANG H

Preparing coal-based graphene quantum dots, comprises crushing natural coal, dispersing into N,N-dimethyl formamide, placing in ultrasonic cell crusher, carrying out ultrasonic crushing, then filtering, and removing N,N-dimethyl formamide.

ZHANG Y, REN S, DANG Y, LIU G, LI K, QIU J

Vacuum pressurizing method for preparing powdery graphene film, involves fixedly installing electromagnetic oscillator on vacuum chamber platform, and connecting spring with locating baffle with limited amplitude.

DANG Y, DONG L, DONG T, ZHANG F, ZHANG H