国家/地区 中国（6）
IPC部 C（6）
IPC大类 C01（6）
IPC小类 C01B（6）
IPC C01B032/19（3） C01B032/184（2）
发明人 DAI Y（2） LIANG F（2） MA W（2）
YANG B（2） YAO Y（2） ZHANG D（2）
公开年 2018（4） 2017（2）
申请年 2017（6）
专利权人 UNIV KUNMING SCI TECHNOLOGY（6）

Preparing nitrogen-doped graphene carbon material useful as e.g. cathode catalyst of a hydrogen-oxygen fuel cell, comprises e.g. adding transition metal salt into halogen element strong oxidizing acid, stirring and ultrasonically processing.

YANG X, WEI Q, TAN F, LI W, ZHANG Y, SUN P, MIN C

Preparation of graphene, involves reacting graphite, oxidant, strong acid, deionized water and hydrogen peroxide to obtain mixture, washing mixture with deionized water and dilute hydrochloric acid, and ultrasonically reacting.

LIANG F, ZHANG D, YAO Y, MA W, YANG B, DAI Y

Preparation of porous graphene involves heating graphite, sodium nitrate, strong acid, oxidizing agent and hydrogen peroxide solution, adding ionic water, deionized water, strong alkali solution and reducing agent and processing.

LIANG F, ZHANG D, CHEN L, ZHANG J, YAO Y, MA W, YANG B, DAI Y

Method for improving water dispersibility of graphene, involves adding concentrated nitric acid and concentrated sulfuric acid, adding graphite powder, mixing potassium hydroxide, adding oxidant solution, washing with distilled water.

LI K, MA L, WANG C, SUN X

Ball milling device for providing pure shearing and peeling graphene, has rotating cylinder which is provided as polish tube and grooves which are installed above inner wall to connect with main shaft of ball mill to transmit torque.

ZHAO M, WEI J

Preparation of nanohydroxyapatite/graphene-based composite material used e.g. for bone tissue repair involves adding graphene oxide powder to calcium salt, stirring adjusting pH, dripping phosphate solution, reacting, aging and filtering.

CHEN Q, YANG Z, YAN T, LIU J