国家/地区
IPC部 B（3） C（3）
IPC大类 B01（3）
IPC小类 B01J（3） C25B（3）
IPC B01J037/16（3）
发明人
公开年 2022（3）
申请年 2022（2） 
专利权人

Catalyst used for preparing beta-carotene from vitamin A triphenylphosphine salt by electrochemistry, is a graphene-supported metal ferrite and a metal oxide catalyst.

ZHANG T, SONG J, SHEN H, JIE J, WANG J, ZHANG Y

Preparing amorphous nickel-boron film used in bifunctional catalyst, comprises preparing nickel precursor solution, reducing agent solution and stabilizing solution, and preparing film by dipping substrate in precursor solution in six beakers in sequence.

SADIQ J A, BAPUSAHEB S R, YADAV J B

Preparing cobalt catalyst useful in electrodes and membrane electrode assembly for water electrolysis, comprises preparing reduced graphene oxide in which cobalt oxide is dispersed, carrying out primary oxidation and secondary oxidation.

PARK S, HAN H, KIM I