国家/地区 中国（3）
IPC部 C（3）
IPC大类 C01（3）
IPC小类 C01B（3）
IPC C01B032/17（2）
发明人 LI Y（2）
公开年 2023（3）
申请年 2021（3） 
专利权人 UNIV PEKING（3）

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

Method for manufacturing clean surface carbon nano-tube for use in nano-electronics field, involves preparing a multi-wall carbon nano tube, cutting outer tube of multi-wall carbon nano tube, and exposing clean inner tube to obtain carbon nano-tube with clean surface.

CHEN Y, LI Y

Transferring method of film graphene, involves attaching side of graphene film/silicon resin layer/organic adhesive layer/graphene film composite to target substrate, and removing organic adhesive layer with organic solvent, removing metal substrate to obtain polymer film/silicon resin /glue layer.

LIN L, DING Q, ZHONG H, LIU Z