国家/地区 中国（3）
IPC部 C（3）
IPC大类 C01（3）
IPC小类 C01B（3）
IPC C01B032/194（2） C01B032/198（2）
发明人 ZHAO X（3）
公开年 2023（3）
申请年 2022（3）
专利权人

Graphene oxide used to prepare graphene, comprises oxygen-containing functional group comprising carboxyl and/or ketone groups, total number of carboxyl groups and ketone groups does not exceed total number of oxygen-containing functional groups.

HUANG Y, LI Z, DING K, LIANG Y, YANG M, ZHAO X, WANG X

Preparing graphene oxide involves mixing graphite, sulfuric acid and potassium permanganate to obtain liquid, performing first and second filtering treatment to remove manganese and potassium ion, subjecting primary filter cake and filter liquid to secondary treatment and performing third treatment.

HUANG Y, LI Z, YE X, LIANG Y, WANG X, ZHAO X, YANG M

Removing graphene surface poly(methyl methacrylate) (PMMA) layer based on non-solvent system involves placing PMMA/graphene/inorganic non-metal substrate in closed system containing non-inorganic salt solid desiccant and sodium ethylate-ethanol solution containing water-absorbing agent, and cleaning.

ZHAO X, LI Y, SUN L, WANG P, ZHANG X, GUO X, YU F