国家/地区 中国（2）
IPC部 B（2）
IPC大类
IPC小类
IPC
发明人 GENG B（2）
公开年 2016（2）
申请年 2016（2） 
专利权人

Preparation of nickel-iron alloy nanoparticle/graphene composite used in catalytic oxygen evolution reaction, involves dispersing nickel salt, ferrous salt, and graphene oxide in water, and hydrothermally reacting with hydrazine hydrate.

GENG J, KUAI L, GENG B

Extraction of graphene quantum dots from coffee grounds solid waste, involves adding recovered coffee residue to dilute hydrochloric acid, stirring, carrying out ultrasonic surface activation, filtering and washing with deionized water.

LI W, PAN D, WANG L, GENG B, GUO Y