国家/地区 中国（6）
IPC部 C（6）
IPC大类 C01（6） C09（2）
IPC小类 C01B（6） C09K（2）
IPC C01B032/198（6）
发明人 ZHANG C（6）
公开年 2022（6）
申请年 2022（6）
专利权人 SHANDONG HAI.（3）

Preparing low oxygen, high stripping graphene oxide useful in preparation of graphene heat-conducting film, comprises e.g. homogenizing and suction filtering dispersion liquid, separating concentrated sulfuric acid in reaction material, washing and filtering solid material.

ZHANG C, LI C, WANG J, YU X, ZHANG S

Preparing large-scale graphene oxide class involves adding graphene oxide and the catalyst to water respectively, and obtaining the solution after stirring uniformly, adding a pH regulator to the solution to adjust the pH value, and illuminating solution after adjusting the pH value.

JIN R, ZHANG C

System for continuously recycling concentrated sulfuric acid to prepare oxidized graphene, comprises reaction kettle connected with ultrasonic device and filter through discharging pipeline, and homogenizing machine.

ZHANG C, LI C, WANG J, YU X, ZHANG S

Preparing graphene oxide by recycling concentrated sulfuric acid comprises mixing flake graphite and concentrated sulfuric acid, performing ultrasonic treatment, performing solid-liquid separation on reaction material to obtain recovered concentrated sulfuric acid and solid material, homogenizing.

ZHANG C, LI C, WANG J, YU X, ZHANG S

Preparing tunable wettability composite surface comprises e.g. ultrasonically cleaning titanium sheet in absolute ethanol, preparing graphene oxide, drop-coating graphene oxide on cleaned titanium sheet, focusing laser on surface of titanium sheet, femtosecond laser processing and heat treating.

CHEN Z, ZHANG C, LIU H, CHEN J, GU G

Preparing graphene, comprises drying and crushing graphene oxide before reduction of graphene oxide to obtain graphene oxide with mesh number corresponding to specific surface area requirement of graphene, where graphene is prepared by reducing graphene oxide.

GUO B, QU Y, FANG G, ZHANG C, XU Y, ZHANG J