Abstract: This disclosure relates to EMM-41 materials, methods for making it, and processes for its use. This disclosure also relates to the structure directing agents used in the methods for making the EMM-41 material as well as the synthesis method used to prepare such structure directing agents.

Abstract: Systems and methods are provided for synthesizing multi-ring disalicylate linkers. The systems and methods can allow for synthesis of disalicylate linkers while using a reduced or minimized amount of solvent (such as down to potentially having no separate solvent) in the reaction environment. The synthesis can be performed by starting with a compound such as 4,4?-biphenol as a starting reagent. The 4,4?-biphenol (and/or other alcohol-substituted biphenyl compound) can then be exposed in a reaction environment to pressurized CO2 in the presence of a base. The temperature and pressure in the reaction environment can be increased to achieve either supercritical conditions for the CO2 (based on a phase diagram for neat CO2) and/or sub-critical conditions that are substantially similar to supercritical conditions. This can allow for conversion of the 4,4?-biphenol (or other alcohol-substituted biphenyl compound) into a multi-ring disalicylate linker.

Abstract: A method can include heating an aqueous reaction mixture comprising a silicon source and a boron source and/or an aluminum source in the presence of a quaternary structure directing agent to a temperature of at least 75° C. to produce a zeolite. A composition can include a borosilicate zeolite, an aluminosilicate zeolite, or an aluminoborosilicate zeolite having a framework symmetry of C2/m and a unit cell with measurements of a of 3.5 ? to 4.5 ?, b of 20.1 ? to 21.1 ?, c of 15.5 to 16.5 ?, and ? of 97° to 98°.

Abstract: Functionalized polymer compositions are provided that can have beneficial properties for CO2 sorption and/or desorption. The functionalized polymer compositions can be based on polymers of intrinsic microporosity. The polymers of intrinsic microporosity can then be at least partially reacted to form polymers functionalized with guanidine and/or amidine derivatives where at least a portion of the polymeric repeat units have a substituent that includes a guanidine derivative and/or amidine derivative as a functional group. Optionally, the functionalized polymers of intrinsic microporosity can be further reacted in order to further modify the guanidine derivative and/or amidine derivative that is substituted at one or more locations of a polymeric repeat unit.

Abstract: Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers. MOFs having ambient condition stability may comprise a plurality of metal clusters comprising one or more M4O clusters (M is a metal), and a plurality of 4-pyrazolecarboxylate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. The MOFs may have a Pa3 symmetry, which upon activation may convert into Fm3m symmetry.

Abstract: A method can include heating an aqueous reaction mixture comprising a silicon source and a boron source and/or an aluminum source in the presence of a diquaternary structure directing agent to a temperature of at least 75° C. to produce a zeolite. A composition can include a borosilicate zeolite, an aluminosilicate zeolite, or an aluminoborosilicate zeolite having a framework symmetry of C2/m and a unit cell with measurements of a of 3.5 ? to 4.5 ?, b of 20.1 ? to 21.1 ?, c of 15.5 to 16.5 ?, and ? of 97° to 98°.

Abstract: Systems and methods are provided for using a multi-stage capture process for capture of CO2 from air. A first or initial sorption process is used to sorb CO2 from air. After sorption from the air is complete, the desorption step of the initial stage is used to form a secondary CO2-containing stream that is passed into one or more additional sorption stages. This secondary CO2-containing stream can be at a concentration of roughly 1.0 vol % or more. Sorption of CO2 from the secondary CO2-containing stream is performed using a different contacting method, such as a contacting method that is higher efficiency. The second or later CO2 sorption stage can produce a CO2-containing output stream with a CO2 concentration of 80 vol % or more, or 90 vol % or more, or 95 vol % or more. This high purity output stream can then be sequestered and/or used for further processing.

Abstract: Provided herein are methods of novel methods of synthesizing a metal-organic framework system by vapor-phase appending of a plurality of ligands appended to a metal-organic framework. Also, provided are methods of recycling metal-organic framework systems by detaching the ligand and re-appending the same ligand or appending a different ligand to the metal-organic framework to provide a recycled or repurposed metal-organic framework system.

Abstract: The present application relates to absorbents comprising tetraamine ligands grafted onto metal-organic frameworks and a method for using same for CO2 capture from fossil fuel combustion sources to reduce emissions. In particular, this application relates to capturing >90% by volume, preferable >99% by volume, CO2 emissions such that the emissions are negative, essentially removing CO2 from the combustion air.

Abstract: Methods are provided for appending amines to metal organic framework (MOF) compositions. In some aspects, the methods can allow for appending of amines in the solution or synthesis solution used for synthesizing a MOF. In such aspects, an amine-appended MOF can be formed without having to first separate and dry the underlying non-amine-appended MOF composition. In other aspects, amines can be appended to an existing MOF composition by exposing the MOF to a suitable amine in a protic solvent, such as water or an alcohol.

Abstract: Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers. MOFs having ambient condition stability may comprise a plurality of metal clusters comprising one or more M4O clusters (M is a metal), and a plurality of 4-pyrazolecarboxylate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. The MOFs may have a Pa3 symmetry, which upon activation may convert into Fm3m symmetry.

Abstract: Contactor structures are provided that can allow for improved heat management while reducing or minimizing the potential for contamination of process gas streams with heat transfer fluids. The contactor structures can include one or more sets of flow channels for process gas flows, such as gas flows introduced to allow adsorption of components from a gas stream or gas flows introduced to facilitate desorption of previously adsorbed components into a purge gas stream. The process gas flow channels can correspond to flow channels defined by a structural material of unitary structure. The unitary structure can correspond to the entire contactor, or the unitary structure can correspond to a monolith that forms a portion of the contactor. The contactor structures can also include one or more sets of flow channels for heat transfer fluids. The heat transfer flow channels can also be defined by the structural material of a unitary structure.

Abstract: Ink compositions are provided for using solvent-based additive manufacturing (SBAM) techniques to form contactor structures and/or structures for use in an adsorption or absorption contactor. Methods forming a contactor using SBAM are also provided. The ink compositions can include a substantial content of adsorbent particles to provide enhanced adsorption by a contactor. Metal organic framework (MOF) structures and zeotype framework structures are examples of types of adsorbent particles that can be incorporated into an ink composition for forming a contactor structure by SBAM. The ink can further include a polymeric component that can serve as the structural component of a polymeric structural material produced by the additive manufacturing method. Such a structural material can correspond to a polymeric material with incorporated adsorbent particles. In some aspects, the polymeric structural material and/or the adsorbent particles can have selectivity for adsorption of CO2 from a process fluid flow.

Abstract: Fiber compositions are provided that incorporate metal organic framework (MOF) materials into the polymeric matrix of the fiber. The metal organic framework materials can be incorporated by including MOF particles into a “dope” or synthesis solution used to form the fiber. The dope solution can then be used to form fibers that include 5.0 wt % or more of MOF in the resulting polymeric structural material of the fiber, relative to a weight of the fibers. In some aspects, the metal organic framework material can correspond to a MOF with selectivity for adsorption of CO2.

Abstract: A method can include heating an aqueous reaction mixture comprising a silicon source and a boron source and/or an aluminum source in the presence of a diquaternary structure directing agent to a temperature of at least 75° C. to produce a zeolite. A composition can include a borosilicate zeolite, an aluminosilicate zeolite, or an aluminoborosilicate zeolite having a framework symmetry of C2/m and a unit cell with measurements of a of 3.5 ? to 4.5 ?, b of 20.1 ? to 21.1 ?, c of 15.5 to 16.5 ?, and ? of 97° to 98°.

Abstract: Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers, typically as a coordination polymer. Some highly porous MOFs lack stability at ambient conditions. MOFs having ambient condition stability may comprise a plurality of metal clusters (M4O clusters, M=a metal), and a plurality of 4-(1H-pyrazol-4-yl)benzoate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores.

Abstract: Provided herein are adsorption materials comprising a metal-organic framework comprising metal ions of metals, a plurality of organic linkers and one or more modulator where each modulator forms a localized defect. Each organic linker in the plurality of organic linkers creates a bridge between metal ions. Each modulator is connected to only one metal chain. The adsorption material further comprises one or more ligands. Each ligand in the plurality of ligands can be an amine or other Lewis base (electron donor) appended to a metal ion of the metal-organic framework.

Abstract: Systems and methods are provided for regenerating a bed containing absorbed and/or adsorbed CO2 using a low value steam stream. The steam stream can have a pressure of 10 kPa-a to 50 kPa-a and a temperature of 46° C. to 81° C. The steam stream can be used to displace CO2 from the bed, resulting in formation of a low pressure stream including water vapor and CO2. The stream containing water vapor and CO2 is then passed through a liquid ring pump that includes an associated ring cooler. The ring pump provides the suction necessary to draw the low value steam stream through the bed to displace the CO2. Due to the nature of operation of the liquid ring pump, the majority of water in the steam containing H2O and CO2 can be removed within the liquid ring pump, resulting in production of a stream comprising 90 vol % or more of CO2 at a pressure of 90 kPa-a or more.

Abstract: Disclosed are zeolitic imidazolate framework (ZIF) compositions in which at least a portion of the ligands in its shell have been exchanged with other ligands, and methods of making such shell-ligand-exchanged ZIFs. Also disclosed is the use of such shell-ligand-exchanged ZIFs in hydrocarbon separation processes.

Abstract: Provided herein are adsorption materials comprising a mixed-metal mixed-organic framework comprising metal ions of two or more distinct metals and a plurality of organic linkers. Each organic linker in the plurality of organic linkers is connected to a metal ion. The adsorption material further comprises a plurality of ligands. In an aspect, each respective ligand in the plurality of ligands is an amine or other Lewis base (electron donor) appended to a metal ion in the two of more distinct elements of the mixed-metal organic framework to provide a mixed-metal mixed-organic framework system.