国家/地区 中国（3）
IPC部 B（3）
IPC大类 C01（3） B01（2） C07（2）
IPC小类 C01B（3）
IPC C01B032/194（2） C01B032/198（2）
发明人 GUO H（3）
公开年 2023（2）
申请年 2022（3）
专利权人

Synthesizing caprolactam comprises using catalyst to catalyze reaction raw material comprising cyclohexanone oxime to carry out Beckmann gas-phase rearrangement reaction to obtain caprolactam.

GUO Y, HAN M, DAI Y, KONG M, XU L, DING K, GUO H, WANG G

Preparing graphene oxide/chitosan/polyvinyl alcohol composite microsphere immobilized copper catalyst comprises e.g. adding graphene oxide into chitosan solution, ultra-sonicating, adding polyvinyl alcohol and glutaraldehyde, sonicating, adding copper(II) sulfate aqueous solution and reaction.

LI W, LI B, FU C, ZHU L, HU X, GUO H, ZHANG Y

Preparation of graphene nanopores for, e.g. biosensors, involves preparing graphene, transferring to silicon nitride chip with pores to form graphene suspended membrane structure, controlling defect density, reducing breakdown voltage, and crushing film by setting increasing pulse current.

TIAN J, GUO H, LIU Z