国家/地区 中国（5）
IPC部 C（5）
IPC大类 C01（5） B82（2）
IPC小类 C01B（5）
IPC C01B032/17（5）
发明人 LI Y（2）
公开年 2021（3） 2023（2）
申请年 2021（5）
专利权人 UNIV PEKING（2）

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

Recycling of nano-carbon material used in e.g. petroleum industries, involves placing magnesium-based composite material in crucible, heating, solidifying, soaking ingot in aqueous solution, drying and filtering.

WANG X, LI X

Method for preparing graphene-carbon nano-tube composite material useful as conductive additive in lithium ion battery comprises adding graphene oxide material completely oxidized into diluted acid solution, and performing acid washing operations.

ZHENG T, ZHANG M, MAO O, YE Z, CHENG L, XU H

Purifying water-dispersible carbon nanomaterial by adding sample of carbon nanomaterial flat-bottomed flask, adding potassium dichromate and sulfuric acid, heating, filtering dark green solution, drying carbon nanotubes, adding carbon nanomaterials to inorganic salt/alkali solution and centrifuging.

ZHAO F, XIE Y, WANG Z, YUAN Y