国家/地区 中国（28） 韩国（2） 世界知识产权组织（2）
IPC部 C（31）
IPC大类 C01（31）
IPC小类 C01B（31）
IPC C01B032/196（31）
发明人 LIU Y（2） ZHOU Z（2）
公开年 2021（31）
申请年 2020（16）  2021（15） 
专利权人

Method for preparing graphene by electrochemical anode stripping suitable for industrial production, involves purifying electrolytic solution containing te graphene precursor to obtain graphene dispersion liquid.

WU J, YAN L

Graphene quantum dot used for preparing formulation, fiber product or in vivo implant for providing antibacterial effect, is prepared by mixing trinitrorylene with o-phenylenediamine, adding water and sodium hydroxide to obtain reaction system, uniformly mixing and performing hydrothermal reaction.

SHAN J, OU L, WU Z, XIA W, QI L

Refining device of high purity graphene powder comprises reaction tank provided with rotating shaft, where upper end of rotating shaft is set on reaction tank in upper half part of reaction chamber is set in reaction chamber.

LIU J, HUANG D, LIN Z

Preparation of single-layer graphene involves preparing graphene nanosheets, mixing graphene nanosheets, nickel and absolute ethanol, centrifuging, placing graphene on copper foil, reacting for preset time, and forming layers of graphene.

LI J, CHEN J, YE L, YU M

Method for de-acidifying graphene material liquid, involves entering liquid into ceramic film device through ceramic film nanofiltration filtering and deacidifying, fully filtering to obtain ceramic film concentrated solution.

SHI Z, LIN X, LAN Y, ZHENG X

Purification of graphene oxide in e.g. cyclone separation, involves dispersing graphene oxide sample, slowly adding liquid dispersant having preset viscosity, precipitating, taking upper dispersion liquid, washing, filtering, and drying.

ZHANG Y, MA F, WANG L

Preparing three-dimensional graphene material with high conductivity and high elasticity, comprises preparing the material by hydrothermal reduction method, and putting metal aluminum powder and the material at low and high temperature areas.

BI H, QIAN J, HUANG F

Recycling of nano-carbon material used in e.g. petroleum industries, involves placing magnesium-based composite material in crucible, heating, solidifying, soaking ingot in aqueous solution, drying and filtering.

WANG X, LI X

High temperature sublimation device for removing high specific surface graphene iron element, has reciprocating cylinder fixedly connected on outer tank wall of sublimation tank, where outer tank wall of tank is connected with fixed pulley.

CHENG Z

Purifying water-dispersible carbon nanomaterial by adding sample of carbon nanomaterial flat-bottomed flask, adding potassium dichromate and sulfuric acid, heating, filtering dark green solution, drying carbon nanotubes, adding carbon nanomaterials to inorganic salt/alkali solution and centrifuging.

ZHAO F, XIE Y, WANG Z, YUAN Y