国家/地区 美国（4） 世界知识产权组织（3） 欧洲专利局（EPO）（2）
IPC部 B（5）
IPC大类 B01（5）
IPC小类 B01D（5）
IPC B01D069/02（5）
发明人
公开年 2021（5）
申请年 2020（5） 
专利权人

Preparing gas selective separation filter involves providing graphene membrane on sacrificial support layer, subjecting graphene membrane to transient pressurized ozone gas pulse, purging ozone, and cooling down ozone treated graphene membrane.

AGRAWAL K V, HUANG S, HSU K, AGRAWAL K, HWANG S, HUSH K, XU G

Preparing graphene-containing mixed film, comprises e.g. using strong oxidant to oxidize layered graphite powder to form layered graphene oxide with carbonyl, carboxyl and epoxy groups, and mixing Dimethylformamide and graphene oxide.

LIN C, LIU T, CHUANG Y, WEI H, HSU N

Membrane e.g. graphene membrane for use in filter and filtration, has pores that includes relatively large and small pores, filler particles are lodged within relatively large pores and graphene platelets fill relatively small pores.

OGUNTUASE N

Nanoporous membrane used in filter, comprises two-dimensional material permeated by pores which are blocked by polymer derived from monomer and comprising population of pores having average pore diameter.

KIDAMBI P R, CHENG P

Multi-layered membrane useful for separating many ions or molecules in a fluid stream and in device for osmotic power generation, comprises a top layer, a bottom layer, and a spacer layer.

GARAJ S, SPINA M