国家/地区 中国（2）
IPC部 C（2）
IPC大类 C23（2）
IPC小类 C23C（2）
IPC C23C016/26（2）
发明人 QIN C（2）
公开年
申请年 2021（2） 
专利权人 CHONGQING XI.（2）

Preparing graphene field emission source useful in field emission cathode of electronic device e.g. display device, comprises slowly cooling carbon atom dissolved to metal material to form graphene layer by stage cooling, closing power supply to room temperature, and taking out metal material.

QIN C, LI T, WANG Q, LOU H, SHI L, LUO L, HUANG S

Industrial mass production of vertical graphene composite carbon felt involves soaking carbon felt in acid solution, vibrating, repeatedly washing soaked carbon felt with deionized water, drying, and putting carbon felt on roller device.

QIN C, LI T, WANG Q, LOU H, SHI L, LUO L, HUANG S