国家/地区 世界知识产权组织（4） 中国（3） 欧洲专利局（EPO）（3） 日本（3） 韩国（3） 美国（3）
IPC部 B（4）
IPC大类 B01（4）
IPC小类 B01J（4）
IPC C01B032/05（4）
发明人
公开年 2015（2）
申请年
专利权人

Preparation of sulfonated graphene used for e.g. transparent electroconductive electrode and thermal conductive material, involves contacting reaction medium containing oxidative sulfonating agent with organic material, and heating.

HAO J, JIANG Y, LI J

Graphite-type carbon raw material used as graphene precursor, has rhombohedral system graphite layer and hexagonal system graphite layer in ratio more than preset value, as measured using peak intensities specific planes of layers.

HASEGAWA S, KAMIYA N, SHOJI H, NAGISA K, HASEGAWA SHOJI, KAMIYA NAGISA, SHEN Y

Carbonaceous material for solid acid for hydrolyzing cellulose and adsorption agent, comprises amorphous carbon containing graphene sheet and has sulfo group and specified peak temperature in ammonia temperature-programmed desorption.

YAMAGUCHI D

Preparing dispersion of graphene particles/sheets in liquid medium comprises providing bar/block of solid material made of graphite, rubbing material on substrate surface and dipping substrate in medium and subjecting medium to ultrasound.

JANOWSKA I, BEGIN D, CHIZARI K, ERSEN O, BERNHARDT P, ROMERO T, LEDOUX M, PHAMHUU CUONG, PHAM H C, PHAMHUU C