国家/地区 欧洲专利局（EPO）（7） 美国（7） 中国（5） 日本（5） 世界知识产权组织（5） 韩国（4） 加拿大（2） 西班牙（2）
IPC部 C（9）
IPC大类 C01（9） B82（7） H01（5）
B01（2）
IPC小类 C01B（9）
IPC C01B031/04（9）
发明人 ZHANG L（2） ZHANG M（2）
公开年 2013（6） 2015（3）
申请年 2013（9）
专利权人 CARBON NANO .（2） SHENZHEN CAN.（2）

Preparing anthracite based graphene oxide comprises e.g. preparing ultra-clean anthracite powder, adding dispersant, carrying out ultrasonication to prepare dispersion liquid, and preparing graphene oxide colloid solution.

ZHANG L, ZHANG M

Preparing graphene oxide based on mixed acid system comprises e.g. washing graphite, drying, smashing, passing through sieve, preparing graphite powder, adding plugging agent, preparing first acid system and then second acid system.

ZHANG L, ZHANG M

Preparation of graphene foam used for cigarette tar harm reduction by preprocessing amino or thiol-surface treated graphene, adding into polymeric microsphere suspension by mechanical stirring or ultrasonic dispersing, and calcining.

WANG L, YANG G

Graphene powder for preparing lithium ion battery electrode, comprises compound having catechol group that adsorbs on graphene, e.g. catechol, dopamine hydrochloride, 3,4-dihydroxyphenylalanine, noradrenalin, and caffeic acid.

SUN P, LIU G, WU Z, WU G, TAMAKI E, KUBOTA Y

Making graphene powder useful in carbon-based electrical devices involves preparing graphene solution in which graphene particles are dispersed in a solvent; aggregating the particles; separating aggregated particles from solvent and drying.

LEE S, LEE D, SEO B, BYUN N

New imidazolidine-type compound used for mixed ionic liquid for preparation of graphene dispersion liquid for electronic component e.g. energy storage electrical appliance and lithium-ion secondary battery.

AIDA TAKUZO, PARK CHIYOUNG, RAVI SAISUWAN, MATSUMOTO MICHIO, AIDA T, PARK C, RAVI S, MATSUMOTO M

Preparing graphene comprises providing graphite monoxide powder, placing graphite oxide powder into solvent and then heat treating to prepare graphene oxide dispersion liquid, introducing hydrogen sulfide gas of the graphene and reacting.

KANG F, LI B, LV W, TAO Y, WEI W, YANG Q, ZHANG C, ZHENG X

Chemical reduction of graphene oxide useful in industrial application for its increased electrical conductance involves using hypophosphorous acid and/or hypophosphite ions as reducing agents and sulfur dioxide, sulfurous acid as catalyst.

LIPINSKA L, JAGIELLO J, KOZINSKI R, BATIJEWSKI R, NAJDEKER E

Production of graphene and graphite nanoplatelet structures involves passing current through cell comprising graphitic negative electrode; optionally graphitic positive electrode; and electrolyte with organic ions and metal ions as cations.

DRYFE R A W, KINLOCH I A, ABDELKADER A M, JEFF R A W