国家/地区 中国（5）
IPC部 B（5）
IPC大类 C09（5）
IPC小类 C10M（5） B82Y（4） C09K（4）
C10N（4） C01B（3） C09C（3）
B01J（2） B29B（2） B33Y（2）
C04B（2） C08K（2） C08L（2）
C09D（2） H01B（2） H01G（2）
IPC C10M125/02（5）
发明人 HASEGAWA S（2） HASEGAWA SHOJI（2） KAMIYA N（2）
KAMIYA NAGISA（2） NAGISA K（2） SHEN Y（2）
SHOJI H（2）
公开年 2015（2）
申请年
专利权人 GRAPHENE PLA.（2） GRAPHENE PLA.（2）

Preparing hydrophobic multi-element modified graphene quantum dot useful in e.g. preparation of lubricant additives, comprises sequentially adding non-aqueous solvent and carbon source into reactor, stirring, refluxing, performing solid-liquid separation and removing non-aqueous solvent.

WU J, ZENG Q, HE X, TIE S, HE K

Extracting graphene quantum dots comprises e.g. co-processing a derived nitrogen-containing and sulfur-containing coal-based material with a mixture of concentrated sulfuric acid and concentrated nitric acid using coal-based material.

CAO Y

Graphite-based carbon material used as graphene precursor for preparing graphene dispersion, comprises rhombohedral graphite layer and hexagonal graphite layer, and has specified rate calculated based on X-ray diffraction method.

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

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

Synthesizing graphene comprises refluxing reaction mixture of solvent e.g. water and carbonaceous material promoting polycyclic aromatic hydrocarbon formation, collecting and directing obtained vapors to substrate and recovering graphene.

SHANKMAN R S, HANKMAN R S