Abstract: Compositions are provided for efficient uranium extraction, for example from wastewater, seawater, or other water sources. The compositions can include a functionalized porous organic polymer functionalized with one or more uranium binding moieties, e.g. having a plurality of amidoxime or amidrazone groups covalently attached thereto. The compositions can include covalent organic frameworks, porous aromatic frameworks, and various porous organic polymers, especially those having a hierarchical pore size distribution over a range of pore sizes. The compositions can have functional groups such as amidoxime or an amidrazone covalently attached thereto. The hierarchical pore size distribution can be determined based upon at least 60% of the pore sizes in the range of pore sizes having a pore volume of at least 0.01 cm3 g?1 in the pore size distribution at 77 K. Methods of making the compositions and methods of using the compositions are also provided.

Abstract: A method is provided for capturing CO2 from a gas mixture comprising CO2. The method includes contacting the gas mixture with a sorbent comprising a porous polymer. The porous polymer selectively binds CO2 in the gas mixture to yield bound CO2, thereby removing CO2 from the gas. Upon exposure to moisture, the porous polymer releases the bound CO2 to yield a recycled porous polymer.

Abstract: A variety of superhyrdophobic porous materials are provided including a covalent organic framework having a plurality of perfluoroalkyl or perfluorheteroalkyl moieties covalently attached thereto. The materials can include a polymeric foam matrix made of a three-dimensional network of polymer fibers, and the covalent organic framework can be made encasing at least a portion of the polymer fibers. The covalent organic framework can be intertwined within the polymeric foam matrix such that the covalent organic framework encasing the portion of the polymer fibers is stable to mechanical compression of the polymeric foam matrix. Surfaces and other articles are provided including the superhyrdophobic porous materials are also provided, as are methods of making the superhyrdophobic porous materials, and methods of use for oil recovery among other things.

Abstract: A composition can comprise a metal-organic framework (MOF) nanoparticle for oral protein administration, wherein the MOF comprises a nano-scale acid-resistant MOF; a small molecular protein/polypeptide drug and a targeting molecule, wherein the MOF is loaded with the small molecular protein/polypeptide; and targeting molecules, wherein a surface of the MOF is coated with the targeting molecules.

Abstract: Described herein are compositions composed of frustrated Lewis pairs impregnated in porous materials such as, for example, metal-organic frameworks, and their uses thereof. These compositions may allow new applications of frustrated Lewis pairs in catalysis by sequestering and protecting the frustrated Lewis pair within the nanospace of the porous material. Also provided are methods of hydrogenating an organic compound having at least one unsaturated functional group comprising using the compositions described herein.

Abstract: A contactor includes: a terminal group including a first terminal and a second terminal; a conductive strip including a first conduction section and a second conduction section that are movably connected, where the first conduction section is connected to the first terminal; a microswitch connected to the second conduction section, where at least two microswitches, at least two conductive strips, and at least two terminal groups are arranged and in a one-to-one correspondence; and a driving component configured to drive the at least two microswitches to rotate for driving to implement selective disconnection or connection between corresponding second conduction sections and second terminals. The present disclosure also discloses a charging and distribution system, a vehicle, and a charging pile. The contactor can implement synchronous on-off of multiple high-voltage circuits, and reduce the number of parts of the driving component.

Abstract: Compositions are provided for efficient uranium extraction, for example from wastewater, seawater, or other water sources. The compositions can include a functionalized porous organic polymer functionalized with one or more uranium binding moieties, e.g. having a plurality of amidoxime or amidrazone groups covalently attached thereto. The compositions can include covalent organic frameworks, porous aromatic frameworks, and various porous organic polymers, especially those having a hierarchical pore size distribution over a range of pore sizes. The compositions can have functional groups such as amidoxime or an amidrazone covalently attached thereto. The hierarchical pore size distribution can be determined based upon at least 60% of the pore sizes in the range of pore sizes having a pore volume of at least 0.01 cm3 g?1 in the pore size distribution at 77 K. Methods of making the compositions and methods of using the compositions are also provided.

Abstract: A variety of compositions and materials are provided for water purification and remediation. The compositions including multiple functionalities for treating a variety of pollutants or contaminants. The compositions can include a porous organic polymer with one or more of a variety of functional groups for binding the contaminants and with a hierarchical pore size distribution over a range of pore sizes to facilitate enhanced removal of the contaminants. Functional groups can include one, two, or more different functional groups such as amines, halides, ammoniums, pyridiuiums, thiols, imidazoliums, salts thereof, or others. The range of pore sizes can be about 1 nm to 10 nm or more. Contaminants can include antimony, arsenic, barium, beryllium, cadmium, chromium, copper, lead, mercury, selenium, technetium, thallium, uranium, radium, urea, and phosphate. Methods of removing the contaminants from water using the compositions are also provided.

Abstract: Described herein are corrole-based frameworks and methods for making the same. The corrole-based frameworks have unique structural and physical properties, which lends them to be versatile in a number of different applications and uses such as in gas storage/separation, proton conduction, biomedicine, sensing, and catalysis. In one aspect, the corrole-based frameworks are organic frameworks. In other aspects, the corrole-based frameworks are metal-organic frameworks.

Abstract: Compositions are provided for efficient uranium extraction, for example from wastewater, seawater, or other water sources. The compositions can include a functionalized porous organic polymer functionalized with one or more uranium binding moieties, e.g. having a plurality of amidoxime or amidrazone groups covalently attached thereto. The compositions can include covalent organic frameworks, porous aromatic frameworks, and various porous organic polymers, especially those having a hierarchical pore size distribution over a range of pore sizes. The compositions can have functional groups such as amidoxime or an amidrazone covalently attached thereto. The hierarchical pore size distribution can be determined based upon at least 60% of the pore sizes in the range of pore sizes having a pore volume of at least 0.01 cm3 g?1 in the pore size distribution at 77 K. Methods of making the compositions and methods of using the compositions are also provided.

Abstract: organic frameworks that include catalytic components incorporated throughout the framework. These covalent organic frameworks have unique structural and physical properties, which lend these frameworks to be versatile and useful in a number of different applications and uses and chemical reactions. In one, the covalent organic frameworks include a plurality of fused aromatic groups or polyaromatic groups and ligands, where catalytic components such as transition metal catalysts are coordinated by the ligand to the frameworks.

Abstract: Described herein are covalent organic frameworks. The covalent organic frameworks have unique structural and physical properties, which lends them to be versatile in a number of different applications and uses. In one aspect, the covalent organic frameworks are composed of a plurality of fused aromatic groups and electron-deficient chromophores. The covalent organic frameworks are useful as photocatalysts in a number of different applications.

Abstract: Described herein are corrole-based frameworks and methods for making the same. The corrole-based frameworks have unique structural and physical properties, which lends them to be versatile in a number of different applications and uses such as in gas storage/separation, proton conduction, biomedicine, sensing, and catalysis. In one aspect, the corrole-based frameworks are organic frameworks. In other aspects, the corrole-based frameworks are metal-organic frameworks.

Abstract: Described herein are compositions composed of frustrated Lewis pairs impregnated in porous materials such as, for example, metal-organic frameworks, and their uses thereof. These compositions may allow new applications of frustrated Lewis pairs in catalysis by sequestering and protecting the frustrated Lewis pair within the nanospace of the porous material. Also provided are methods of hydrogenating an organic compound having at least one unsaturated functional group comprising using the compositions described herein.

Abstract: A variety of amphiphobic porous materials are provided. The materials can include a variety of porous frameworks that have an outer surface functionalized by a plurality of perfluoroalkyl moieties. By careful selection of appropriate perfluoralkyl moieties, hydrophobic properties can be imparted to the exterior surface of the porous materials without significantly impacting the wetting properties of the porous interior. This can be used to create a variety of highly amphiphobic porous materials. Methods of making and using the amphiphobic porous materials are also provided.

Abstract: Described herein is a simple and versatile synthetic strategy for the preparation of metal-organic frameworks comprising a carbon matrix doped with nitrogen atoms, wherein transition metal ions are bonded to the carbon matrix via the nitrogen atoms. This strategy is applicable for the synthesis of single metal catalysts or multi metal catalysts rich with atomically dispersed metal active sites. The metal-organic frameworks provided herein have numerous application when used in fuel cells.

Abstract: Compositions are provided for binding mercury based in porous organic polymers having (i) a plurality of repeat units having heavy metal chelator moieties covalently attached thereto and (ii) a plurality of pores having a hierarchical pore size distribution over a range of pore sizes. In some aspects, the range of pore sizes is about 5 nm to 10 nm. The compositions can have a maximum mercury uptake capacity of 1,000 mg g?1 to 2,000 mg g?1 at 1 atm and 296 K and has a mercury uptake capacity that is stable and recyclable. Methods of making the compositions and methods of using the compositions for uptake of mercury are also provided.

Abstract: Compositions are provided for efficient uranium extraction, for example from wastewater, seawater, or other water sources. The compositions can include a functionalized porous organic polymer functionalized with one or more uranium binding moieties, e.g. having a plurality of amidoxime or amidrazone groups covalently attached thereto. The compositions can include covalent organic frameworks, porous aromatic frameworks, and various porous organic polymers, especially those having a hierarchical pore size distribution over a range of pore sizes. The compositions can have functional groups such as amidoxime or an amidrazone covalently attached thereto. The hierarchical pore size distribution can be determined based upon at least 60% of the pore sizes in the range of pore sizes having a pore volume of at least 0.01 cm3 g?1 in the pore size distribution at 77 K. Methods of making the compositions and methods of using the compositions are also provided.

Abstract: A variety of compositions and materials are provided for water purification and remediation. The compositions including multiple functionalities for treating a variety of pollutants or contaminants. The compositions can include a porous organic polymer with one or more of a variety of functional groups for binding the contaminants and with a hierarchical pore size distribution over a range of pore sizes to facilitate enhanced removal of the contaminants. Functional groups can include one, two, or more different functional groups such as amines, halides, ammoniums, pyridiuiums, thiols, imidazoliums, salts thereof, or others. The range of pore sizes can be about 1 nm to 10 nm or more. Contaminants can include antimony, arsenic, barium, beryllium, cadmium, chromium, copper, lead, mercury, selenium, technetium, thallium, uranium, radium, urea, and phosphate. Methods of removing the contaminants from water using the compositions are also provided.

Abstract: A variety of superhyrdophobic porous materials are provided including a covalent organic framework having a plurality of perfluoroalkyl or perfluorheteroalkyl moieties covalently attached thereto. The materials can include a polymeric foam matrix made of a three-dimensional network of polymer fibers, and the covalent organic framework can be made encasing at least a portion of the polymer fibers. The covalent organic framework can be intertwined within the polymeric foam matrix such that the covalent organic framework encasing the portion of the polymer fibers is stable to mechanical compression of the polymeric foam matrix. Surfaces and other articles are provided including the superhyrdophobic porous materials are also provided, as are methods of making the superhyrdophobic porous materials, and methods of use for oil recovery among other things.