Two-dimensional coordination polymers

    公开(公告)号:US12281055B2

    公开(公告)日:2025-04-22

    申请号:US17841150

    申请日:2022-06-15

    Abstract: Octaaminonaphthalene and a method of synthesizing octaaminonaphthalene are described. A two-dimensional coordination polymer and a method of synthesizing the two-dimensional coordination polymer are described. The two-dimensional coordination polymer includes ligands including anchorage sites, and metal linkers, each metal linker including a metal and an organic moiety. Each metal linker is coupled to two ligands via the anchorage sites. Synthesizing the two-dimensional coordination polymer includes contacting a first liquid precursor with a second liquid precursor at an interface, reacting the metal linker and the water-soluble ligand to yield a two-dimensional coordination polymer at the interface, and removing the two-dimensional coordination polymer from the interface.

    SYSTEM, METHOD, AND DEVICE FOR CONTINUOUS CO2 CAPTURE USING A CO2 PUMP MEMBRANE

    公开(公告)号:US20240115989A1

    公开(公告)日:2024-04-11

    申请号:US18263691

    申请日:2022-02-01

    Abstract: A continuous CO2 capture system, method, and device are disclosed. The device includes a CO2 pump membrane including a moisture-swing material, and a cavity having a first fluid. The CO2 pump membrane separates the first fluid from a second fluid, the fluids creating a water concentration gradient across the membrane and transport of water through the membrane. The water concentration gradient creates a carbon concentration gradient across the membrane that decreases moving from outside the cavity to inside the cavity. As water is continuously transported from the first fluid to the second fluid through the CO2 pump membrane because of the water concentration gradient, carbon dioxide is continuously captured from the second fluid by the moisture-swing material of the CO2 pump membrane and continuously pumped along the carbon concentration gradient across the CO2 pump membrane and into the first fluid within the cavity.

    AMMONIUM-FUNCTIONALIZED POLYSULFONE COPOLYMERS FOR MOISTURE-SWING CO2 CAPTURE

    公开(公告)号:US20230038851A1

    公开(公告)日:2023-02-09

    申请号:US17793925

    申请日:2021-02-01

    Abstract: A quaternary ammonium-functionalized poly(arylene ether sulfone) copolymer for moisture-swing CO2 capture, and a method for producing the same, is disclosed. The copolymer includes a polysulfone copolymer having a copolymerization unit based on diallyl bisphenal A (DABA) and has quaternary ammonium functionalities. The method for preparation of a quaternary ammonium-functionalized poly(arylene ether sulfone) copolymer includes reacting diallyl bisphenol A (DABA) with bisphenol A (BPA) and 4,4'-difluorodiphenyl sulfone (DFDPS) to form an allyl-modified poly(arylene ether sulfone) (PAES-co-APAES) copolymer, then modifying the PAES-co-APAES copolymer to convert the allyl functionalities to tertiary amines, forming tertiary amine-modified PAES (PAES-co-TAPAES) copolymer. The method also includes converting the tertiary amine of the PAES-co-TAPAES copolymer to quaternary ammonium, forming quaternary ammonium-modified PAES. These quaternary ammonium-modified PAES may be processed into membranes, films, and hollow fibers.

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