国家/地区 中国（4）
IPC部 B（4）
IPC大类 B01（4） C09（4） C02（2）
IPC小类 B01J（4）
IPC B01J037/08（4）
发明人
公开年 2021（4）
申请年 2020（3） 
专利权人

ytterbium-erbium co-doped ytterbium-erbium/graphene-dicyanocyanamide photocatalyst is useful in the catalytic degradation of organic dyes e.g. rhodamine B under visible light or near infrared light.

XIE J, YU Z, ZHANG K, GUAN B, WANG K, WANG J, MENG J, LIU W

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 a composite photocatalyst comprises e.g. dissolving gadolinium oxide, ytterbium oxide and terbium oxide in concentrated nitric acid, placing in an oven, drying and dissolving sodium hydroxide and vanadium oxide in deionized water.

GUO Y, ZHANG X, HAN W, LIU X, DING Y

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