国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01J（3） C09K（3） C01B（2）
IPC B01J021/18（3）
发明人
公开年 2021（3）
申请年 2021（2） 
专利权人

Preparing nitrogen-doped carbon quantum dots used in metal probes, photoelectrocatalysis and bioimaging, involves dispersing urea, sodium citrate and graphene oxide in water and mixing them into uniform and clear liquid.

HUANG Q, LIU X, LIAO H, GAO H, GONG S

Rare earth carbide catalyst used in preparation of high-carbon friction material, is prepared by loading rare earth oxide on catalytic carrier.

ZHOU G, CHEN B, JIAO H, SHI W

Preparing fibrous mesoporous silica grown on surface of graphene oxide, involves adding graphene oxide to deionized water, dispersing, adding e.g. catalyst urea, adding n-pentanol to cyclohexane, adding tetraethyl orthosilicate, and drying.

WANG H, ZHOU B, MA W, ZHEN L, FU Y, YANG Y, DUAN X, ZHANG M