Abstract: Porous organic-inorganic hybrid materials with crystallinity and a method for preparing the same are provided. The method comprises preparing a reaction solution containing a mixture of at least one inorganic metal precursor, at least one organic compound which may act as a ligand, and a solvent (step 1); and forming porous organic-inorganic hybrid materials with crystallinity by reacting the reaction solution (step 2), wherein the reaction is carried out under the pressure of about 3 atm or less.

Abstract: A method for preparing a chalcopyrite-type semiconductor compound which is widely used as a sunlight-absorbing material. More specifically, disclosed is a method for preparing a chalcopyrite-type compound, in which microwaves are used as heat sources in the preparation of the chalcopyrite-type compound, and the chalcopyrite-type compound can be produced in a large amount in a short reaction time using a batch or continuous reactor.

Abstract: The present disclosure relates to an apparatus for treating air. More particularly, the present disclosure provides an apparatus for treating air comprising porous organic-inorganic hybrid materials formed by binding a central metal ion with an organic ligand.

Abstract: The present invention relates to a synthesis method of porous hybrid inorganic-organic materials that can be applied for adsorbents, gas storages, sensors, membranes, functional thin films, catalysts, catalyst supports, encapsulating guest molecules and separation of molecules by the pore structures. More specifically, the present invention relates to the synthesis method of nanocrystalline porous hybrid inorganic-organic materials.

Abstract: Disclosed herein is a method for producing monohydric alcohols from monocarboxylic acids or derivatives thereof using a catalyst comprising ruthenium (Ru) and tin (Sn) using zinc oxide (ZnO) as both a catalyst support and an active promoter; a catalyst prepared by adding an inorganic binder such as silica, alumina or titania in a limited range to the catalyst comprising the above components in order to impart a shaping ability to the catalyst; or, a modified catalyst reformed by adding at least one reducing component selected from the group consisting of Co, Ni, Cu, Ag, Rh, Pd, Re, Ir, and Pt to the catalyst in order to improve the reducing ability of the catalyst.

Abstract: The present disclosure discloses a catalyst for directly producing a lactide which is a cyclic ester used as a monomer for polylactides, and a method for directly producing a lactide using the catalyst, the method including the transesterification reaction between two molecules of an ester of lactic acid or a mixture containing the ester of lactic acid with a small amount of lactic acid and oligomer of lactic acid under an inert environment in the presence of a titanium-based catalyst or a catalyst mixture containing the titanium-based catalyst so as to produce lactide while simultaneously removing an alcohol (ROH) generated as a by-product.

Abstract: Disclosed herein is a method of surface-functionalizing a porous organic-inorganic hybrid material or a organic-inorganic mesoporous material, in which organic substances, inorganic substances, ionic liquids and organic-inorganic hybrid substances are selectively functionalized on the coordinatively unsaturated metal sites of a porous organic-inorganic hybrid material or organic-inorganic mesoporous material, and thus the porous organic-inorganic hybrid material can be used for adsorbents, gas storage devices, sensors, membranes, functional thin films, catalysts, catalytic supports, and the like, and the applications of the surface-functionalized porous organic-inorganic hybrid material prepared using the method to catalytic reactions.

Abstract: A method for preparing a chalcopyrite-type semiconductor compound which is widely used as a sunlight-absorbing material. More specifically, disclosed is a method for preparing a chalcopyrite-type compound, in which microwaves are used as heat sources in the preparation of the chalcopyrite-type compound, and the chalcopyrite-type compound can be produced in a large amount in a short reaction time using a batch or continuous reactor.

Abstract: Disclosed herein is a method for producing monohydric alcohols from monocarboxylic acids or derivatives thereof using a catalyst comprising ruthenium (Ru) and tin (Sn) using zinc oxide (ZnO) as both a catalyst support and an active promoter; a catalyst prepared by adding an inorganic binder such as silica, alumina or titania in a limited range to the catalyst comprising the above components in order to impart a shaping ability to the catalyst; or, a modified catalyst reformed by adding at least one reducing component selected from the group consisting of Co, Ni, Cu, Ag, Rh, Pd, Re, Ir, and Pt to the catalyst in order to improve the reducing ability of the catalyst.

Abstract: The present invention relates to an adsorbent using the porous organic-inorganic hybrid material(s) containing iron having a large surface area and a high pore volume, in particular, a water adsorbent. Also, it relates to an adsorbent that can be used in humidifiers, dehumidifiers, coolers/heaters, a refrigerating machine or an air conditioner, etc., which can easily absorb or desorb at 100° C. and below, and has a great adsorption amount per weight of the adsorbent. Also, the present invention relates to a novel preparation method of porous organic-inorganic hybrid material(s), in particular, a preparation method characterized by not using hydrofluoric acid, porous organic-inorganic hybrid material(s) prepared by said preparation method, and a use as an adsorbent thereof.

Abstract: The present invention relates to a method for preparing iron-containing porous organic-inorganic hybrid materials where the organic compound ligand is bonded to a central metal and has a large surface area and pores of molecular size or nano size, by irradiating microwaves instead of heat treatments such as the conventional electric heating, etc. as the heat source of the hydrothermal or solvothermal synthesis reaction, after reacting a metal or metal salt and organic compound to form crystal nuclei by a predetermined pre-treatment operation in the presence of a solvent. In another aspect, a method of the present invention further comprises the step of purifying the obtained porous organic-inorganic hybrid materials by treating them with inorganic salt. In particular, a method of the present invention is characterized by not using a hydrofluoric acid.

Abstract: The present invention relates to a synthesis method of porous hybrid inorganic-organic materials that can be applied for adsorbents, gas storages, sensors, membranes, functional thin films, catalysts, catalyst supports, encapsulating guest molecules and separation of molecules by the pore structures. More specifically, the present invention relates to the synthesis method of nanocrystalline porous hybrid inorganic-organic materials.

Abstract: The present invention relates to an adsorbent obtained by using porous hybrid inorganic-organic materials that have high surface area, and have pore with the size of molecules or nanometers. More specifically, the present invention relates to a water adsorbent showing facile adsorption-desorption even below 100° C., having high adsorption capacity, and having high desorption capacity when it is heated up to the temperature below 100° C. The adsorbent of the present invention can be applied to a humidifier, dehumidifier, cooler and heater. The present invention also relates to a technology to control humidity using the adsorbent.

Abstract: The present invention relates to a process for preparing nanoporous VSB-5 molecular sieves, and more particularly, to a process for preparing nanoporous VSB-5 molecular sieves useful as a hydrogen storage material, a catalyst, a catalyst supporter and an adsorbent, performed in such a manner that low-cost inorganic base or monoamine instead of a template essential in the conventional process is, as a pH modifier, incorporated into raw materials comprised of nickel and phosphorous compounds and crystallized to give VSB-5 molecular sieves in an economical and efficient manner.

Abstract: The present invention relates to a composition of metal-incorporated VSB-5 molecular sieve with nanopores and its preparation method, in particular, to a composition of a metal-incorporated VSB-5 molecular sieve with a framework of VSB-5 molecular sieve comprising nickel, phosphorous, oxygen and metal, which is useful in various fields such as a hydrogen storage material, an optical and electric/electronic material, a sensor, a catalyst, a catalyst supporter and an adsorbent, and its preparation method performed in such a manner that a specific metal component is added in a predetermined mole ratio to a reaction mixture comprised of nickel and phosphorous compounds and the resultant mixture is crystallized in the presence of inorganic or organic base as a pH modifier to yield a metal-incorporated VSB-5 molecular sieves in an economical and efficient manner.

Abstract: Disclosed is a method to prepare porous materials, which can not only be used for a catalyst, an adsorbent, a catalytic support, in ion exchange and gas storage, and the like, but can also be used to reserve or separate guest molecules with spaces (nanometer spaces) of nanometer size, and mixed metal oxides used as functional ceramics. More particularly, there is disclosed a preparation method, in which microwave energy is used as a heat source and a continuous stirred type reactor is used, the temperature is controlled by directly measuring the temperature of the slurry composed of the reactants, solvent and the product, and the pressure is controlled by measuring the pressure of the gas to thereby improve the stability of operation and the reproducibility, and it is easy to control the residence time and increase of the productivity, and the like can be accomplished.

Abstract: Disclosed herein is a method for the preparation of porous materials, which can be used not only for a catalyst, an adsorbent, a catalytic support, ion exchange and gas storage, but also for adsorbent of guest molecules due to nanometer spaces (nanospaces), and of mixed metal oxides which are used as functional ceramic materials. More particularly, disclosed is a method for the preparation of porous materials and mixed metal oxides, in which microwave energy is used as a heating source, and a tube free of connection portions is used as a reactor, and the pressure within the reactor is controlled by measuring the pressure of gas remaining after the separation of solid and liquid, so that the method has increased operational stability and reproducibility, makes the control of residence time easy, and can achieve an increase in productivity. Also, disclosed is an apparatus for the continuous preparation of porous materials and mixed metal oxides, which can perform the preparation method.

Abstract: The present invention relates to a process for preparing nanoporous VSB-5 molecular sieves, and more particularly, to a process for preparing nanoporous VSB-5 molecular sieves useful as a hydrogen storage material, a catalyst, a catalyst supporter and an adsorbent, performed in such a manner that low-cost inorganic base or monoamine instead of a template essential in the conventional process is, as a pH modifier, incorporated into raw materials comprised of nickel and phosphorous compounds and crystallized to give VSB-5 molecular sieves in an economical and efficient manner.

Abstract: The present invention relates to a composition of metal-incorporated VSB-5 molecular sieve with nanopores and its preparation method, in particular, to a composition of a metal-incorporated VSB-5 molecular sieve with a framework of VSB-5 molecular sieve comprising nickel, phosphorous, oxygen and metal, which is useful in various fields such as a hydrogen storage material, an optical and electric/electronic material, a sensor, a catalyst, a catalyst supporter and an adsorbent, and its preparation method performed in such a manner that a specific metal component is added in a predetermined mole ratio to a reaction mixture comprised of nickel and phosphorous compounds and the resultant mixture is crystallized in the presence of inorganic or organic base as a pH modifier to yield a metal-incorporated VSB-5 molecular sieves in an economical and efficient manner.

Abstract: The present invention relates to a method for catalytic dehydrogenation of alkylaromatic hydrocarbons and more particularly, to a method for catalytic dehydrogenation of alkylaromatic hydrocarbons using carbon dioxide as a soft oxidant in the presence of a heterogeneous catalyst comprising both vanadium and iron, which allows operation at a lower reaction temperature due to improved thermodynamic equilibrium and provides an enhanced conversion of hydrocarbons and energy saving.