国家/地区 中国（12）
IPC部 C（12）
IPC大类 C01（12） B32（2）
IPC小类 C01B（12）
IPC C01B032/184（12）
发明人 DUAN Y（12）
公开年 2021（3） 2022（3） 2017（2） 2018（2）
申请年 2022（3）  2017（2） 
专利权人 UNIV QINGDAO.（4） CHINESE ACAD.（2） CHONGQING GR.（2） SICHUAN JINY.（2）

Preparing high modulus, highly elastic graphene foam material for stretchable conductor, smart sensor or aerospace field, involves fixing compressed graphene oxide foam material with clamp, burning flame completely, removing fixture, and heat-treating burned product in inert atmosphere.

ZHANG J, DUAN Y, ZHANG X, LIU X, LIU L, YANG H

Removing impurities in graphene preparation process comprises e.g. sieving graphene oxide containing metal impurities and non-metal impurities, placing in reaction kettle, stirring, adding soda ash, filtering, rinsing by deionized water, absorbing and processing by sodium hydroxide solution.

DUAN Y

Preparation device of metal layered graphene on solid carbon source, has heat compression chamber that is provided with auxiliary gas path mechanism introducing auxiliary gas into sample chamber, growth chamber and compression chamber.

SHAO L, LI X, ZHANG Y, LI Z, HUANG D, SHI H, DUAN Y

Conductive control graphene of metal laminated composite material used in electronic, conduction and other technical fields, has graphene step and hot press forming step, graphene metal laminated composite material is prepared by hot pressing and sintering.

SHAO L, HUANG D, DUAN Y, JIANG H, YU J, XU X, MA J, SHI H, LI X

Removing impurities during preparation of graphene involves repeatedly sieving graphene oxide containing metallic impurities and non-metallic impurities during sieving process, and adsorbing some metallic impurities by magnets.

DUAN Y

Preparing highly conductive and internally continuous graphene hybrid film, comprises hybridizing graphene oxide with metal nanoparticles, graphene oxide sheets cross-linked by metal nanoparticles reusing and thermally reducing hybrid film.

WANG B, ZHU Y, DUAN Y, XIAO H, MING Y

Graphene aerogel modification process comprises e.g. orderly adding reducing agent and modifying agent into graphene oxide dispersion liquid, reacting, washing, then placing in aqueous alcohol solution for dialysis treatment, freeze-drying.

ZHANG J, LI J, DUAN Y

Preparing graphene quantum dot involves adding 1,3,6-trinitrotoluene into sodium hydroxide solution, using ultrasonic cell and crushing ultrasonically then transferring polytetrafluoroethylene into reaction kettle for hydrothermal reaction.

ZHU X, DUAN Y, ZHANG H, WU Q, DONG J, XIANG B, CUI X

Preparation of porous graphene used as e.g. cathode material of lithium ion battery, involves mixing carbon source with sheet-like template agent, carbonizing, acid-washing, and purifying to obtain flaky porous carbon, and calcining.

HUANG X, LI J, DUAN Y, TONG P

Preparation of aqueous dispersion of graphene comprises dispersing graphene sheet layer in solvent in single or number of layers, where dispersion further comprises surfactant and, chitin nanocrystals and/or chitin nanofibers.

ZHANG J, WANG K, DUAN Y, LIU L