国家/地区 中国（4）
IPC部 C（4）
IPC大类 C01（4）
IPC小类 C01B（4）
IPC C01B032/192（4）
发明人 ZHANG L（4）
公开年 2020（2） 2021（2）
申请年 2021（2） 
专利权人

Preparing large graphene used in e.g. medicine, involves dissolving potassium persulfate, putting graphite, stirring, oxidizing, centrifuging to obtain graphene solution and expandable graphite suspension, adding expanded graphite to mixed solvent for intercalation and dispersion, and centrifuging.

XIE C, XU Z, XIA G, HAN C, LIU J, ZHANG L, TANG Z, XU L

Preparation of graphene-based composite for supercapacitor, involves reacting concentrated sulfuric acid, graphite powder and sodium nitrate, adding potassium permanganate, heating, adding hydrogen peroxide, and dissolving potassium permanganate in upper layer graphene oxide suspension.

MA J, DU W, MEI J, ZHANG L

Preparation of graphene heat dissipation film involves preparing modified graphite oxide slurry using e.g. graphite oxide and hydrogen peroxide, applying on permeable nylon cloth, drying, peeling, heating, cooling, calendaring and cutting.

BAO N, WENG C, ZHANG L, LI C

Preparing nitrogen-doped graphene by adding graphite powder, sodium nitrate, concentrated sulfuric acid and potassium permanganate, heating, adding hydrogen peroxide, washing precipitate, dialyzing, adding urea, freeze-drying and heating.

SHENG Z, WEI K, YIN J, ZHONG H, ZHANG L