Despite the fact that the amount and type of gas to be stored may vary in accordance with the type of substituent, metal-organic frameworks only using a terephthalic acid having substituents within the limited range have been produced conventionally. An object of the present invention is to provide a novel metal-organic framework using a 2,5-disubstituted terephthalic acid. A metal-organic framework comprising a carboxylate ion of formula (I) and a multivalent metal ion bound to each other is a novel metal-organic framework, enabling a gas such as hydrogen and nitrogen to be store efficiently. (wherein in formula (I), X is an unsubstituted or substituted cycloalkyl group, an unsubstituted or substituted aryl group, an unsubstituted or substituted heterocyclyl group or —Si(R.sup.1) (R.sup.2) (R.sup.3) ; and Y is a single bond, an alkylene group, —O—, —S—, —S(O)—, —SO.sub.2—, —N(R.sup.4)— or a group formed by a combination thereof; provided that X—Y— is a phenyl group, a benzyloxy group, a pyrazol-1-yl group or a group of formula (II) except for a case where m is 3, 6, 8, 9, 10, 11 and 12).

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A method for storing hydrogen gas includes the process steps pre-heating of an at least partially dehydrogenated hydrogen carrier material, storing the hydrogen gas in chemically bound form on the hydrogen carrier material as well as cooling and conditioning of the at least partially hydrogenated hydrogen carrier material.

A composite material is provided comprising a porous polymeric matrix having metal-organic framework (MOF) domains dispersed within the porous polymeric matrix, each of said MOF domains in fluid communication with the external environment through the pores in the porous polymeric matrix. A process of using the composite material to chemically modify or detoxify a chemical warfare agent or a toxic industrial chemical is also provided. The chemical warfare agent or the toxic industrial chemical is brought into contact with a MOF domain within the porous polymeric matrix so that the MOFs adsorb and chemically modify the chemical warfare agent or the toxic industrial chemical. A process for producing such a composite material is also disclosed.

The present invention relates to siloxane hydrogen carrier compounds and to a method for producing hydrogen from said siloxane hydrogen carrier compounds.

It is an object of the present invention to provide a storage material for a gas such as hydrogen, carbon dioxide, methane, or acetylene (excluding nitrogen gas) comprising a metal-organic framework comprising a hydroxamic acid group as a bonding site. A metal-organic framework comprising a multivalent metal ion and a molecule comprising an unsubstituted or substituted hydroxamic acid group and one or more sites capable of being bonded to the multivalent metal ion is contained. The molecule is preferably at least one compound selected from the group consisting of compounds of formulas (I) to (III).

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A device includes a catalytic system and an electromagnetic system. The catalytic system defines a catalysis chamber and includes a catalyst of a reaction to generate a gas from a liquid. The catalyst is housed in the catalysis chamber. The electromagnetic system includes a coil and a rod mobile relative to the coil, the rod being fixed to the catalytic system and including a magnet and a core. The electromagnetic system is configured to move the rod relative to the coil when an electrical current is passed through the coil, so as to dispose the catalytic system in an open position in which the catalysis chamber is in fluidic communication with the outside. The catalytic system is disposed in a closed position in which the catalysis chamber is hermetically closed in the absence of an electrical current through the coil.

The present disclosure relates to improved processes for the preparation of metal hydrides. The present disclosure also relates to metal hydrides, e.g., metal hydrides prepared by the processes described herein, that exhibit enhanced hydrogen storage capacity when used as hydrogen storage systems.

The present disclosure relates to a hydrogen gas production method including: a first step of generating a mixed gas containing hydrogen and carbon dioxide from a hydrogen storage agent by dehydrogenation reaction using a catalyst in a reactor; a second step of purifying the generated mixed gas to acquire a gas having a high hydrogen concentration; a third step of separating a solution in the reactor into a solution enriched with the catalyst and a permeate using a separation membrane unit; and a fourth step of supplying the solution enriched with the catalyst to the reactor for reusing in the first step.

The present invention relates to a synthesis of novel Zn(II)-based Metal Organic Frameworks having mixed organic ligands of 1,3,5-benzene tricarboxylic acid (BTC) and 2-methylimidazole (mIm) through a simple and economic solvothermal method. The synthesized MOFs has cuboids morphology having high surface area (1248 m2/g) capable of hydrogen adsorption at −10° C. to 25° C. temperature and 100 bar pressure. The hydrogen adsorption capabilities of the novel MOFs are in the range of 23-0.2 weight percent.

Provided is an operation management system configured to manage delivery of a raw material from a raw material production base where the raw material including a hydride is produced to a plurality of dehydrogenation bases where the raw material is subjected to a dehydrogenation reaction to obtain a hydrogen-containing gas. The operation management system includes: an information acquisition unit configured to acquire first information on a dehydrogenation status in the plurality of dehydrogenation bases; and a delivery plan creation unit configured to create a delivery plan for delivering the raw material to the plurality of dehydrogenation bases on the basis of the first information.