国家/地区 中国（8） 世界知识产权组织（2）
IPC部 C（8）
IPC大类 C01（8） C09（2） H01（2）
IPC小类 C01B（8）
IPC C01B032/198（8）
发明人 LI C（8）
公开年 2022（8）
申请年 2022（5）  2021（3） 
专利权人 GUANGDONG BR.（3） HUNAN BRUNP .（3） HUNAN BRUNP .（3） SHANDONG HAI.（3）
HUNAN BRUNP .（2）

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 graphene oxide by using waste graphene film leftover material, involves collecting leftover material of waste graphite film, soaking treated by soaking in liquid nitrogen to obtain film-made graphite, and mixing with conventional graphite to obtain recycled graphite.

ZHAO Y, ZHOU W, LI C, GENG B

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 nitrogen-doped carbon dot-graphene oxide composite material that is used for detecting heavy metal ion, and electrochemical sensor, involves mixing carbon source and nitrogen source, performing hydrothermal reaction, performing solid-liquid separation to obtain nitrogen-doped carbon dot.

LI C, GONG Q, LIU Y, CAO K, WANG M, YANG J

Preparing graphite alkenyl sodium ion battery cathode material involves adding graphene oxide into absolute ethyl alcohol, and ultrasonic processing at certain temperature to obtain oxidized graphite alcohol dispersion liquid.

LI C, ZHANG X, LI A, XIE Y, YU H

Cathode material for sodium ion battery used in electric vehicle industry and renewable energy, comprises graphene oxide.cerium dioxide/carbon nanosheet.

LI C, LU Z, ZHANG X, XIE Y, LI A, YU H

Preparing graphene oxide aerogel, comprises dispersing graphene oxide in hydroalcoholic solution to form uniform graphene oxide dispersion, and then lyophilizing the graphene oxide dispersion to obtain final product.

FU Q, YA F, YUAN X, WANG H, WANG J, WANG X, LI C, CUI X, YU S