国家/地区 中国（3） 美国（2） 世界知识产权组织（2）
IPC部 B（4）
IPC大类 B82（4）
IPC小类 B82Y（4）
IPC C01B031/04（4）
发明人 ZHAO C（4）
公开年
申请年
专利权人 UNIV EAST CH.（2）

Preparation of graphene oxide sheet involves cooling concentrated sulfuric acid, adding successively graphite, potassium permanganate and sodium nitrate, heating, stirring, centrifuging and drying.

TAN G, XIA A, ZHAO C, REN H

Producing patterned graphene comprises irradiating focal point on metal substrate surface with laser beam in the presence of carbon dioxide and moving the beam relative to surface so that focal point is displaced along the pattern.

ZHAO C, DONG J, DONG X, QIAN X

Making metal oxide-graphene composite, comprises providing composition comprising graphene oxide and elemental metal dispersed in liquid medium, and heating composition in sealed chamber at temperature above nominal boiling point of medium.

ZHAO C

Preparing graphene used in the field of electrochemistry, comprises reacting graphite oxide solution with metal liquid ammonia, purifying, and separating to obtain product.

FENG J, WU Z, ZHANG J, ZHANG Z, ZHAO C