国家/地区 日本（4）
IPC部 C（4）
IPC大类 C01（4） B82（3）
IPC小类 C01B（4）
IPC C01B032/198（4）
发明人 ZHANG M（4）
公开年 2015（3）
申请年 2013（2） 
专利权人 CARBON NANO .（3） SHENZHEN CAN.（3）

Preparation of graphene quantum dots of different oxygen content used in fluorescent material, involves dispersing graphene oxide in peroxide solution, mixing dispersion with lye, purifying to obtain powder, and performing gradient elution.

ZHANG L, ZHANG M

Repairing reduced graphene oxide comprises e.g. reacting graphene oxide with Lewis acid and methyl containing compound, refluxing, adding Lewis acid and repair agent, reacting, mixing with metal powder catalyst, reacting and annealing.

ZHANG M, ZHANG L

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