国家/地区 欧洲专利局（EPO）（2）
IPC部 C（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC C01B031/04（2）
发明人 ZHANG M（2）
公开年 2015（2）
申请年 2013（2） 
专利权人 CARBON NANO .（2） SHENZHEN CAN.（2）

Preparing anthracite based graphene oxide comprises e.g. preparing ultra-clean anthracite powder, adding dispersant, carrying out ultrasonication to prepare dispersion liquid, and preparing graphene oxide colloid solution.

ZHANG L, ZHANG M

Preparing graphene oxide based on mixed acid system comprises e.g. washing graphite, drying, smashing, passing through sieve, preparing graphite powder, adding plugging agent, preparing first acid system and then second acid system.

ZHANG L, ZHANG M