Metal-inorganic frameworks (“MIFs”) having enhanced adsorption capabilities to hydrogen, CO, CO.sub.2, hydrocarbons, and a variety of other guest molecules are disclosed. All linkers in the MIFs contain metal complexes, comprising metal atoms and inorganic or organic ligands, instead of only organic ligands as linkers in metal-organic frameworks (MOFs). Compared to their MOF counterparts, MIFs with carbon-free or carbon-deficient chemical structure are expected to possess enhanced thermal stability, higher catalytic activity, and higher gas affinity and selectivity.

A method of storing gas comprises providing a recipient for receiving the gas and providing a porous gas storage material. The gas storage material comprises a cross-linked polymeric framework and a plurality of pores for gas sorption. The cross-linked polymeric framework comprises aromatic ring-containing monomeric units comprising at least two aromatic rings. The aromatic ring-containing monomeric units are linked by covalent cross-linking between aromatic rings to form a stable, rigid nanoporous material for storing the gas at pressures significantly greater than the atmospheric pressure, for example in excess of 100 bar. A possible application is the storage and transportation of compressed natural gas.

Disclosed are metal organic frameworks (MOFs) for adsorbing guest species, methods for the separation of gases using the MOFs, and systems comprising the MOFs. The MOFs comprise a plurality of secondary building units (SBUs), each SBU comprising a repeating unit of one metal cation connected to another metal cation via a first moiety of an organic linker; a layer of connected adjacent SBUs in which a second moiety of the linker in a first SBU is connected to a metal cation of an adjacent SBU, and wherein adjacent layers are connected to each other via linker-to-linker bonding interactions

The present disclosure pertains to materials for CO.sub.2 adsorption at pressures above 1 bar, where the materials include a porous material with a surface area of at least 2,800 m.sup.2/g, and a total pore volume of at least 1.35 cm.sup.3/g, where a majority of pores of the porous material have diameters of less than 2 nm as measured from N.sub.2 sorption isotherms using the BET (Brunauer-Emmett-Teller) method. The present disclosure also pertains to materials for separation of CO.sub.2 from natural gas at partial pressures of either component above 1 bar, where the materials include a porous material with a surface area of at least 2,200 m.sup.2/g, and a total pore volume of at least 1.00 cm.sup.3/g, where a majority of pores of the porous material have diameters of greater than 1 nm and less than 2 nm as measured from N.sub.2 sorption isotherms using the BET method.

The present invention relates to a device for the reversible adsorption of carbon dioxide from a gas mixture, comprising at least one adsorbent vessel comprising one or a plurality of gas permeable cartridge vessels of an inert and dimensionally stable material, and each cartridge comprising a suitable polymeric particular adsorbent having a primary amino functionality; to an arrangement including the device, and to a method for adand desorption of carbon dioxide.

Provided are a core material for a vacuum insulation panel including porous aluminosilicate, and a vacuum insulation panel provided with the same. The core material for the vacuum insulation panel according to the present disclosure has superior long-term durability and improved gas adsorption ability (particularly, superior water absorption ability) while requiring a low raw material cost. The vacuum insulation panel including the core material may exhibit more improved insulation performance by minimizing a reduction in the vacuum degree without an additional getter or absorbent.

A separation membrane structure comprises a porous support, a first separation membrane formed on the porous support, and a second separation membrane formed on the first separation membrane. The first separation membrane has an average pore diameter of greater than or equal to 0.32 nm and less than or equal to 0.44 nm. The second separation membrane includes addition of at least one of a metal cation or a metal complex that tends to adsorb nitrogen in comparison to methane.

The present disclosure provides for a porous gas sorbent monolith with superior gravimetric working capacity and volumetric capacity, a gas storage system including a porous gas sorbent monolith of the present disclosure, methods of making the same, and method for storing a gas. The porous gas sorbent monolith includes a gas adsorbing material and a non-aqueous binder.

[Object]To provide an adsorbent, an adsorbent sheet, and a carbon/polymer composite for adsorbing a virus having further improved virus adsorption capability. [Solving Means] An adsorbent for adsorbing a virus according to the present invention has a specific surface area value as measured by the nitrogen BET method of 10 m.sup.2/g or more and a pore volume as measured by the BJH method of 0.1 cm.sup.3/g or more. An adsorbent sheet for adsorbing a virus according to the present invention includes a porous carbonaceous material having a specific surface area value as measured by the nitrogen BET method of 10 m.sup.2/g or more and a pore volume as measured by the BJH method of 0.1 cm.sup.3/g or more. A carbon/polymer composite for adsorbing a virus according to the present invention includes a porous carbonaceous material having a specific surface area value as measured by the nitrogen BET method of 10 m.sup.2/g or more and a pore volume as measured by the BJH method of 0.1 cm.sup.3/g or more; and a binder.

The aluminum silicate of the invention has: an element ratio of Si and Al, represented by Si/Al, of from 0.3 to 1.0 by molar ratio; a peak at approximately 3 ppm in a .sup.27Al-NMR spectrum; peak A at approximately −78 ppm and peak B at approximately −85 ppm in a .sup.29Si-NMR spectrum; and a peak at approximately 2θ=26.9° and a peak at approximately 2θ=40.3° in a powder X-ray diffraction spectrum. The aluminum silicate has an area ratio of peak B with respect to peak A of from 2.0 to 9.0, or does not include a tubular substance having a length of 50 nm or more as observed in a transmission electron microscope (TEM) photograph of the aluminum silicate taken at a magnification of 100,000. The aluminum silicate is produced by a method comprising: subjecting a reaction product of a silicate ion solution and an aluminum ion solution to desalting and solid separation; subjecting a resultant to a thermal treatment in an aqueous medium in the presence of an acid under concentration conditions in an aqueous medium such that a silicon atom concentration is 100 mmol/L or more and an aluminum atom concentration is 100 mmol/L or more; and subjecting a resultant to further desalting and solid separation.