国家/地区 中国（13）
IPC部 C（13） B（2） D（2）
H（2）
IPC大类 C01（13） C02（2） D01（2）
H01（2）
IPC小类 C01B（13）
IPC C01B032/198（13）
发明人 ZHANG Y（13）
公开年 2021（12）
申请年 2021（13）
专利权人 GAOBEIDIAN L.（2） UNIV BEIJING.（2）

Preparation of graphene oxide dispersion includes mixing sulfuric acid and nitric acid in graphite powder, adding potassium chlorate powder, washing reaction product with deionized water and hydrochloric acid solution, dispersing graphite oxide in polar solvent and performing ultrasonic treatment.

YU Z, DENG Z, ZHANG Y, TANG P, ZHANG H

Method for separating graphite flake layer, involves adding potassium permanganate aqueous solution or nitric acid into electrophoresis tank, putting graphite powder into anode region of tank, and introducing direct current to tank.

ZHANG Y

Preparing oxygen reduction catalyst of cobalt dimethyl imidazole combined with nickel-aluminum layered double hydroxide-graphene oxide used in microbial fuel cell, involves mixing nickel chloride hexahydrate.

WEI Q, WANG Y, YANG D, YANG Y, WANG R, ZHANG Y, WANG X, LIU Y, YANG J, CHEN J

Graphene oxide film used as e.g. selective transmission film, includes main portion formed of graphene oxide with lamellar structure with oxygen-containing functional groups, where oxygen-containing functional group includes hydroxyl functional group, epoxy group and carbonyl functional group.

YU Z, ZHAO Z, TANG P, ZHANG Y, ZHANG H

Preparation of graphene oxide-based porous photothermal material capable of generating solar steam used for seawater desalination includes dispersing graphene oxide and polyvinyl alcohol in deionized water, freeze drying solidified product to obtain graphene oxide precursor and carbonizing.

GUO Y, SU X, XIAO C, ZHANG Y, CHEN L, HASIQIMEIGE

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

Three-dimensional bouquet-like structure nanomaterial compounded with zinc sulfide on graphene oxide used for preparing lithium ion battery and photocatalyst, comprises graphene oxide sphere with three-dimensional bouquet-like structure.

WANG L, LI W, HE B, LI B, XIANG Z, HU X, CHEN S, ZHU L, GUO H, ZHANG Y

Preparing graphene-glass wool composite board useful in aircraft, comprises e.g. reacting graphene oxide with halogenated alkyl group, mixing alkylated graphene, epoxy resin and curing agent, and coating composite coating on glass-wool.

YANG H, ZHANG Y

Preparation of zero-valent iron loaded on graphene hollow nanosphere nanomaterial by preparing silica-graphene oxide nanosphere, adding to nano-zero-valent iron dispersion system, stirring, ultrasonicating, centrifuging, and vacuum drying.

WU Q, SUN M, GU Q, ZHANG Y, ZHANG J, GUO W, WU H

Producing graphene oxide by microwave one-step dry method involves using expandable graphite as a raw material, adding solid exfoliating oxidant and rare earth catalyst in proportion, and mixing and irradiating in a microwave oven.

JIA W, AN Y, ZHANG Y