国家/地区 中国（2）
IPC部 B（3） C（3）
IPC大类 B01（3）
IPC小类 B01J（3）
IPC B01J035/10（3）
发明人
公开年 2021（3）
申请年 2020（2） 
专利权人

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

Composite used for forming catalyst for e.g. oxygen reduction reaction, comprises graphene hydrogel, and boron-doped carbon quantum dots dispersed in and on surface of graphene hydrogel.

CHOI W M, TRAN V T

Preparing cigarette butt based graphene composite material, comprises e.g. purifying waste cigarette butt, and reacting with nickel foam, methacrylic acid, manganese(II) chloride hydrate and iron(III) nitrate nonahydrate.

LI W, WU Y, ZHANG J, ZHAO D