国家/地区 中国（4）
IPC部 C（4）
IPC大类 C01（4）
IPC小类 C01B（4）
IPC C01B032/198（3）
发明人 TANG R（4）
公开年 2023（4）
申请年 2020（2） 
专利权人 SIXTH ELEMEN.（4） UNIV SCI TE.（2）

Preparation of single-layer graphene oxide for e.g. microelectronics, involves adding pretreated graphite powder to intercalation agent to obtain suspension, drying, sieving, adding oxidizing agent for intercalation reaction, separating, dispersing filter cake, adding quenching agent and separating.

QU Y, TANG R, YIN S, WU Y, ZHENG Y, YUAN H, ZHU Y

Preparing oxidized graphene by recycling oxidant, involves adding pre-processed graphite powder and intercalating agent, adding oxidant to completely dissolve, and adding hydrogen peroxide to not generate bubbles,carrying out solid-liquid separation to the oxidized graphene suspension,centrifuging.

QU Y, ZHENG Y, TANG R, WU Y, YUAN H, ZHU Y

Preparing graphene oxide involves mixing graphite with concentrated sulfuric acid, adding expansion agent, vacuumizing, reacting under vacuum, adding oxidant, reacting, filtering and washing.

QU Y, TANG R, SUN X, QIAN C, JI L

Removing impurities, used in hydrogen halide reduction-oxidation graphene film, involves using hot water to fumigate or multiple times to act on oxidized graphene film of hydrogen halide reduction, making water molecule enter into interlayer of graphene oxide, extruding halogen element to interlayer.

QU Y, GENG B, ZHANG J, GE M, TANG R, WU Y