国家/地区 韩国（4）
IPC部 B（4）
IPC大类 B01（4）
IPC小类 B01J（4） C01B（2） C25B（2）
C25F（2）
IPC B01J023/755（4）
发明人
公开年
申请年 2021（2） 
专利权人 HANWHA AEROS.（2） HANWHA TECHW.（2） SAMSUNG TECH.（2）

Photocatalyst useful for carbon dioxide reduction under visible light irradiation on photocatalyst to form formaldehyde comprises nickel(II) oxide/cerium(IV) oxide/reduced graphene oxide heterostructure nanocomposite.

SOO K Y, PARKHONGYEOL

Electrode catalyst useful for water electrolysis including for oxygen evolution reaction and hydrogen evolution reaction in alkaline seawater, comprises first transition metal foam, and metal double hydroxide/metal oxide mixed layer.

LEE H Y, AMOL Z, AMOL J, LEE H

Manufacturing graphene film involves preparing catalyst metal having at least surface on which graphene is formed, forming support layer on graphene, and isolating graphene and support layer from catalyst metal.

NA D, LEE E, YOON J, NA D H, LEE E K, YOON J H, LI Y

Manufacture of graphene for, e.g. organic LEDs, involves preparing structure with graphene on surfaces and catalyst, arranging carriers on graphene, and removing catalyst while winding up carriers by rotating rolls facing each other.

KIM N, RYU J, YEONG K N, CHEOL R J, KIM N Y, RYU J C