国家/地区 中国（5） 韩国（4） 美国（4） 欧洲专利局（EPO）（3） 日本（3） 世界知识产权组织（3） 台湾（2）
IPC部 C（6）
IPC大类 C01（6）
IPC小类 C01B（6）
IPC C25D003/38（6）
发明人
公开年 2021（2）
申请年 2021（2）  2022（2） 
专利权人

Method for preparing high-conductivity nanometer graphene colloid useful in field of printed circuit board involves mixing nano-graphene material with additive, dissolving in water, and performing ball milling and ultrasonic dispersion treatment.

ZHAO Y, CHAI X, HU C, YANG G

Preparing negative charge oxidation graphene, comprises adding concentrated sulfuric acid in reaction container, adding graphite powder, persulfate and phosphorus oxide, and adding concentrated sulfuric acid into graphite solution.

SONG T, CHEN W, PAN Z, LIU Z

Preparing high-flexibility graphite material or graphene material radiating component, comprises plasma cleaning graphite, mixing components of activating agent, preparing activating catalyst, washing and drying raw product electroplated with copper layer.

PANG M, PANG M X, MACING F

Producing composite material used for e.g., electrocatalysis by impregnating a two-dimensional (2D)-material based aerogel with impregnation solvent, performing a solvent/water exchange, performing precursor diffusion and passing a current.

YANG W, MOISSINAC F, BARG S, BYUN J J, FRANCIS M, BARGZUELEN, GRADE S

Electrolytic copper foil used for producing graphene, has preset ratio of surface roughness of copper foil and surface roughness of copper foil after heat treatment.

JO T J, LEE S H, PARK S, SONG K D, TAE J J, SUNHYOUNG L, SEULKI P, KIDEOK S, JO T, LEE S, SONG K

Graphene film used in an electrode is obtainable by epitaxially growing metal layer on surface of substrate, peeling off the metal layer, and depositing graphene onto surface of metal layer.

WODTKE A, YU H K, ALEC W, HAK KI Y, YU H, YUK H K, YUK H