国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01J（2）
IPC B01J023/50（2）
发明人
公开年 2022（2）
申请年 2021（2） 
专利权人

Preparing metal nanoparticle comprises placing boron powder and metal in cleaned crucible, degassing, annealing single crystal metal sheet substrate, growing single layer of boron on substrate and depositing metal on boron-coated substrate by vacuum heating and forming metal dispersion.

DAI D, MA Z, ZHAO X, WANG H

Preparing nitrogen-doped graphene noble metal composite film, comprises coating mixture made of graphene oxide solution, water-soluble noble metal compound and water-soluble amine cross-linking agent e.g ethylenediamine, drying film, and heating under the protection of inert gas.

CHENG J, LI Y, ZHANG P, AN X