国家/地区 中国（6）
IPC部 C（6） B（2） H（2）
IPC大类 C01（6） C09（2） H01（2）
IPC小类 C01B（6）
IPC C01B032/184（6）
发明人 ZHANG H（6）
公开年 2022（4） 2023（2）
申请年 2022（6）
专利权人 DRILLING ENG.（2） PLA ACAD MIL.（2） SINOPEC OILF.（2）

Preparing graphene by combustion synthesis comprises e.g. mixing extruded vermiculite powder and metal magnesium powder, then mixing with metal magnesium powder, passing carbon dioxide, adding into hydrochloric acid solution and adding into hydrofluoric acid solution and reacting.

MING H, CAO G, XIANG Y, ZHANG H, ZHANG W

Application of high-nitrogen heterographene nanosheet in oil-based drilling fluid e.g. white oil-based drilling fluid.

LIU S, GONG G, CHEN J, LI L, DENG Y, ZHANG Z, LI J, ZHOU C, LUO C, ZHANG H

General-purpose shielding material useful for direct/alternating current high-voltage cables comprises base resin, crosslinking agent, antioxidant, carbon black, doped graphene dispersant, where doped graphite is nitrogen-doped graphene, boron-doped graphene and boron-nitrogen co-doped graphene.

PEI C, LIU Z, CHANG X, ZHANG H, LIU J, WANG W, QI X, LIU H

Preparation method of pyrrole nitrogen doped graphene, involves cooling solid reaction product, taking out, stirring and soaking in hydrochloric acid, and using pure water to wash until pH is higher to obtain black nitrogen-doped graphene.

CAO G, MING H, XIANG Y, LAI R, ZHANG H, ZHANG W

Modifying aqueous and oil-based drilling fluids by aza-graphene nanosheets involves preparing aza-graphene nano-sheet with high nitrogen content into aqueous solution and then mixing with the existing aqueous or oil-based drilling fluid, and using inorganic salts.

LIU S, GONG G, CHEN J, LI L, DENG Y, ZHANG Z, LI J, ZHOU C, LUO C, ZHANG H

Rapid conversion of precursor molecules into graphene nanoribbons, involves placing carbon nanotubes with open ports and precursor organic molecules in sealed container, heat-treating at high temperature, and performing microwave heat-treatment on obtained carbon nanotubes filled with molecules.

LIN Z, ZHANG H, SHI L