国家/地区 中国（4）
IPC部 C（4）
IPC大类 C01（4）
IPC小类 C01B（4）
IPC C01B032/194（2） C01B032/198（2）
发明人 DUAN P（4）
公开年 2021（3）
申请年
专利权人

Preparing tin oxide/reduced graphene oxide nano-composite material modified by palladium for hydrogen sensor, involves providing micron-sized oxidizing graphene, mixing tin source, micron-sized oxidizing graphene and palladium source, adding acid, and ultrasonically dispersing.

WANG Q, PENG Q, XIAO H, DUAN Q, JIN K, DUAN P, SUN J

Producing concrete water reducing agent comprises e.g. adding graphene oxide solution and acrylamide polymer into methyl alkenyl polyoxyethylene ether and sodium styrene sulfonate solution, stirring, adjusting pH, cooling, adding calcium lignosulfonate and rutin, and mixing.

ZHANG Z, DUAN P

Preparing graphene doped with nitrogen and sulfur, comprises e.g. mixing graphene, nitrogen-sulfur doping source and agate ball, ball milling, washing, filtering, and freeze-drying to obtain nitrogen and sulfur double-doped graphene.

DUAN P, SHAN Y, YIN L, ZHANG X

Preparing porous graphene dispersion by electrochemical method, comprises e.g. preparing electrolyte, electrolytically peeling graphite material in electrolyte, and ultrasonically processing obtained graphite intercalation compound.

DING G, DUAN P, HE P, XIE X