国家/地区 中国（3） 世界知识产权组织（2）
IPC部 C（5）
IPC大类 C01（5）
IPC小类 C01B（5）
IPC C01B031/04（5）
发明人 ZHANG L（5）
公开年 2014（3）
申请年 2014（4） 
专利权人 SHENZHEN CAN.（2）

Preparation of graphene quantum dots involves adding monolayer graphene oxide to solvent, adding zinc oxide and stabilizing agent, hydrothermally reacting, adding acid, filtering, extracting, and removing extracting agent by evaporation.

ZHANG L, ZHANG M

Large-scale preparation graphene quantum dots, comprises adding graphene oxide into first solvent to obtain first dispersion solution, adding reducing agent, reacting, carrying out solid-liquid separation and cooling to obtain crude product.

ZHANG M, ZHANG L

Preparation of coal-based graphene quantum dots involves taking natural coal, crushing, mixing with strong acid, performing ultrasonic treatment, freezing, adding sodium nitrite, stirring, centrifuging, neutralizing and dialyzing.

SU Y, ZHANG L, ZHANG Y

Preparation of graphene quantum dots involves uniformly dispersing graphene oxide in solvent, reacting with reducing agent, cooling, separating solid, mixing with reducing polyhydroxyaldehyde and organic acid, and Lewis acid, and dispersing.

ZHANG L, ZHANG M

Preparation of graphene quantum dots for, e.g. FETs, involves dispersing carbon material in sulfuric acid, adding potassium permanganate and hydrogen peroxide, filtering, dialyzing, evaporating water, and reducing formed oxide dots.

FAN T, LIU Y, MIN Y, SONG J, TONG S, ZHANG L