国家/地区 中国（6）
IPC部 C（6）
IPC大类 C01（6）
IPC小类 C01B（6）
IPC C01B032/196（6）
发明人 ZHANG J（6）
公开年 2019（2） 2023（2）
申请年 2018（3）  2019（2） 
专利权人 BEIJING GRAP.（2） UNIV PEKING（2） UNIV WUHAN S.（2）

Direct manufacture of graphene from anthracite involves mixing pulverized coal sample of anthracite and copper chloride and drying to obtain mixed pulverized coal, grinding and irradiating to obtain coarse product of coal-based graphene, separating crude graphene product and purifying.

DONG W, LI J, ZHANG J, NIU H, KANG J, CHEN C, HUANG J, LI K

Removing impurities, used in hydrogen halide reduction-oxidation graphene film, involves using hot water to fumigate or multiple times to act on oxidized graphene film of hydrogen halide reduction, making water molecule enter into interlayer of graphene oxide, extruding halogen element to interlayer.

QU Y, GENG B, ZHANG J, GE M, TANG R, WU Y

Separating and purifying graphene comprises e.g. taking biomass carbon or resin-modified asphalt and heating with oxygen to obtain graphene-containing mixture, and taking mixture in solvent to separate graphene by liquid phase separation.

HU Y, WU L, ZHANG J, LIU Y, YANG X

Cleaning method of graphene comprises rolling the surface of graphene through curved body provided with adsorbent on curved surface.

LIU Z, PENG H, SUN L, LI Y, LIU X, LIN L, ZHANG J, JIA K

Cleaning graphene surface for preparing clean graphene used in e.g. transparent electrode, involves providing carbon nanomaterial, contacting nanomaterial with graphene surface, applying pressure and separating nanomaterial from graphene.

LIU Z, PENG H, LI Y, SUN L, WANG K, ZHANG J, JIA K, LIU X

Graphene separation and purification involves adding solvent to pulverized high-temperature carbonized product powder, dispersing at high speed to obtain mixed solution, and then separating mixed solution by centrifugation.

WU L, ZHANG J, HU Y, LIU Y, SHU S, XU J, LIU J, SONG Q, HUANG Z