国家/地区 中国（2）
IPC部 C（2）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC C09K011/65（2）
发明人 ZHANG Q（2）
公开年 2017（2）
申请年 2017（2） 
专利权人

Preparation of water-dispersible nitrogen doped graphene quantum dot involves taking graphite oxide, reducing agent and nitrogen source, dispersing in water, ultrasonicating, performing hydrothermal reaction, and freeze drying.

LI Y, XIE H, HOU C, WANG H, ZHANG Q

Preparation of graphene quantum dot used for photoluminescence diode involves taking natural graphite powder, adding sodium nitrate, concentrated sulfuric acid and potassium permanganate, stirring, heating, filtering, washing and drying.

CHEN W, ZHANG Q, HUANG Z, XIANG C, QIN Y, ZHENG Z, ZHANG W, ZHANG B