国家/地区 中国（6）
IPC部 C（6） B（2）
IPC大类 C01（6）
IPC小类 C01B（6）
IPC C01B032/196（6）
发明人 LI Y（6）
公开年 2019（2） 2022（2） 2023（2）
申请年 2018（2）  2021（2）  2022（2） 
专利权人 UNIV PEKING（3） BEIJING GRAP.（2）

Preparing and purifying nanoparticles of plasma ammoniated graphene-magnetic core structure, comprises placing nanoparticles of graphene-magnetic core structure in processing chamber, carrying out ammonia modification of nanoparticles, and removing non-magnetic free graphene.

LI Y, WANG M, MA Z, WANG Q

Removing metal impurities in carbon material involves performing heat treatment, mixing carbon material and metal salt, and sequentially washing heat-treated mixture with acid and washing with water to obtain purified carbon material.

ZHU S, LI Y

Removing poly(methyl methacrylate) on graphene surface involves carrying out metal surface etching on the copper-based monolayer graphene that is coated with poly(methyl methacrylate), and obtaining poly(methyl methacrylate)/graphene film.

ZHAO X, LI Y, SUN L, WANG P, ZHANG X, GUO X, YU F

Preparing magnetic graphene quantum dot for preparing imaging contrast agent and in-vitro diagnostic probe, involves subjecting ferrous ascorbate aqueous solution to hydrothermal reaction, where contrast agent is nuclear magnetic resonance-fluorescence double-mode enhanced imaging contrast agent.

XIE X, DING G, DONG H, YANG S, LI Y

Cleaning method of graphene comprises rolling the surface of graphene through curved body provided with adsorbent on curved surface.

LIU Z, PENG H, SUN L, LI Y, LIU X, LIN L, ZHANG J, JIA K

Cleaning graphene surface for preparing clean graphene used in e.g. transparent electrode, involves providing carbon nanomaterial, contacting nanomaterial with graphene surface, applying pressure and separating nanomaterial from graphene.

LIU Z, PENG H, LI Y, SUN L, WANG K, ZHANG J, JIA K, LIU X