Abstract:
PURPOSE: A reduction reaction apparatus of carbon dioxide and a method thereof are provided to be able to efficiently manufacture liquid fuel such as CO, hydrocarbon, ketones, aldehydes, alcohols by carbon dioxide reduction, to occur no environmental contamination as hydrogen for reducing carbon dioxide is produced by decomposition of water using a solar cell, and to be able to improve the reduction of carbon dioxide by additionally adding water in the reduction process of carbon dioxide. CONSTITUTION: A reduction reaction apparatus of carbon dioxide comprises a photoreactor(200); a reactor for decomposing water including a solar cell(400). Photocatalyst(100) is loaded in the photoreactor. The reactor for decomposing water is connected to a reactant supply part(300). Carbon dioxide and hydrogen are reacted by injecting carbon dioxide gas and hydrogen gas produced by decomposition of water in the reactor for decomposing water to the photoreactor through the reactant supply part. The hydrogen gas is produced by electrolysis of water with a solar cell within the reactor for decomposing water under the irradiation of sunlight. Water is further injected to the photoreactor. [Reference numerals] (AA,BB) Solar light
Abstract:
PURPOSE: A zeolite core/silica zeolite shell compound, a manufacturing method thereof, and a catalyst including the same are provided to solve a problem in which AI flows out from a zeolite and lowers the hydrocarbon reaction in a reaction process generated in case that an existing AI-containing zeolite is used as the catalyst of a reaction for a hydrocarbon conversion. CONSTITUTION: A manufacturing method of a zeolite core/silica zeolite shell compound includes a step growing a silica zeolite shell having a crystal structure coherent to the zeolite seed crystal by crystallizing after adding a zeolite seed crystal in a gel solution containing a silicon-source compound, a structure-directing agent, and a fluorine anion-source compound. The fluorine anion-compound is selected from a group consisting of HF, NH4F, (NH4)2SiF6, and combinations thereof. The mole ratio of a silicon-source compound contained in the gel solution: a structure-directing agent: a fluorine anion-source compound: water is 2- 5:1.5-2.5:0.1-1.5:50-100. [Reference numerals] (AA) Original seed crystal; (BB) Newly grown crystal
Abstract:
PURPOSE: A reduction method of carbon dioxide using solar rays, and an apparatus using the same are provided to increase the reduction efficiency of the carbon dioxide by adding water additionally to hydrogen and the carbon dioxide. CONSTITUTION: A reduction method of carbon dioxide using solar rays comprises the following steps. A complex catalyst containing a metal(200), a metal compound(100), and a photosensitizer(300) is loaded into a reactor. The gas with hydrogen gas and carbon dioxide gas is inserted to the reactor to react the hydrogen gas and the carbon dioxide gas under irradiation. The metal compound is selected from the group consisting of a metal oxide, a metal carbide, a metal oxycarbide, and a combination thereof. The gas, inserted into the reactor containing the hydrogen gas and the carbon dioxide gas, additionally contains water(H2O).
Abstract:
PURPOSE: A hydrogen ion transferring membrane, a hydrogen generating membrane, and a manufacturing method of the same are provided to improve the efficiency of hydrogen generation and the rate of hydrogen ion transference by using a porous thin film with a plurality of holes. CONSTITUTION: A hydrogen ion transferring membrane(100) includes a porous thin film(110) and a hydrogen ion transferring material(120). The porous thin film includes a plurality of holes which is regularly arranged. The hydrogen ion transferring material is injected into the holes of the porous thin film. The hydrogen generating membrane includes a photocatalyst layer, a hydrogen ion transferring material, and a cocatalyst layer.
Abstract:
PURPOSE: Copper silicate molecular sieve and a method for manufacturing the same are provided to improve the yield of copper silicate molecular sieve without an oxidizer. CONSTITUTION: A method for manufacturing copper silicate molecular sieve includes a process in which a reaction mixture containing silica sources, copper sources, alkali metal sources, basic materials, and water, without an oxidizer, is hydrothermal reacted to form copper silicate molecular sieve. The pH value of the reaction mixture is in a range between 8 and 12. The temperature of the hydrothermal reaction is in a range between 100 and 300 degrees Celsius.
Abstract:
PURPOSE: A method for dispersing and stabilizing quantum dots or quantum wires in zeolite and quantum dot-containing or quantum wire-containing zeolite based on the method are provided to uniformly disperse quantum dots or quantum wires in the cage of the zeolite. CONSTITUTION: Zeolite containing quantum dots or quantum wires is treated with basic gas. The quantum dots or the quantum wires are uniformly dispersed in the pores of the zeolite. The quantum dots or the quantum wires are based on metals, oxides, or compound semiconductors. The compound semiconductors are selected from a group including CdS, CdO, CdSe, CdTe, ZnS, ZnO, ZnSe, ZnTe, MnS, MnO, MnSe, MnTe, MgO, MgS, MgSe, MgTe, CaO, CaS, CaSe, CaTe, SrO, SrS, SrSe, SrTe, BaO, BaS, BaSe, BaTE, HgO, HgS, HgSe, HgTe, Al_2O_3, Al_2S_3, Al_2Se_3, Al_2Te_3, Ga_2O_3, Ga_2S_3, Ga_2Se_3, Ga_2Te_3, In_2O_4, In_2S_3, In_2Se_3, In_2Te_3, SiO_2, GeO_2, SnO_2, SnS, SnSe, SnTe, PbO, PbO2, PbS, PbSe, PbTe, AlN, AlP, AlAs, AlSb, GaN, GaP, GaAs, GaSb, InN, InP, InAs, InSb, BP, Si, Ge, or the combination of the same.
Abstract:
본원은 이산화티타늄 입자의 신규 제조방법 및 상기 방법에 의해 제조되는 이산화티타늄 입자에 관한 것으로서, 구체적으로, 실온 이하의 온도에서의 반응에 의하여 균일한 입자 크기를 가지는 이산화티타늄 입자를 제조할 수 있으며 또한 이산화티타늄 입자의 크기를 용이하게 조절할 수 있는 이산화티타늄 입자의 신규 제조방법 및 상기 방법에 의해 제조되는 균일한 크기를 가지는 이산화티타늄 입자에 관한 것이다.
Abstract:
PURPOSE: A porous thin film with holes and a method for manufacturing the same are provided to rapidly implement manufacturing processes by using the array layer of particles as a template. CONSTITUTION: A method for manufacturing a porous thin film(180) with holes includes the following: an array layer(150) of particles is formed on a first substrate; the first substrate is in contact with a second substrate(200) to transfer the array layer to the second substrate; the transferred array layer is coated with a first thin film forming material(160) to form a particle-first thin film composite(170); a part of the first thin film is eliminated from the particle-first thin film composite to form a plurality of holes; and particles are eliminated through the holes.
Abstract:
PURPOSE: A diamond shaped titanate nano sheet and a manufacturing method thereof are provided to effectively control the size of the nano sheet, and to mass-produce the nano sheet. CONSTITUTION: A diamond shaped titanate nano sheet includes a diamond shape with the diagonal length of 1~500 nanometers. The manufacturing method of the titanate nano sheet comprises the following steps: mixing a titanium precursor material with a basic solution; refluxing the mixture; and obtaining the titanate nano by inducing the precipitation reaction to the refluxed mixture. The titanium precursor material is either titanium, alkoxide, titanium halogen compound or titanyl sulfate. The size of the nano sheet is controlled by adjusting the time of the refluxing step.
Abstract:
본 발명은 초음파를 이용하는 기질-분자체막 복합체의 제조방법 및 이에 사용되는 제조장치에 관한 것으로서, 더욱 상세하게는 기질, 연결화합물 및 분자체 입자가 결합되어 형성되는 기질-분자체막 복합체의 제조방법에 있어서, 단순 환류 대신에 15 KHz ∼ 100 MHz의 초음파를 사용하여 기질과 연결화합물, 분자체 입자와 연결화합물, 연결화합물과 연결화합물 또는 연결화합물과 중간 연결화합물 사이의 공유, 이온, 배위 또는 수소결합을 유도함으로써, 다양한 방법으로 기질과 분자체 입자를 결합시킬 수 있을 뿐만 아니라 시간과 에너지를 절약하면서 현저히 높은 부착속도, 부착세기, 부착정도 및 조밀도를 가지며, 연결화합물이 결합된 기질과 그렇지 않은 기질이 혼합되어 있는 경우에는 선택적으로 연결화합물이 결합된 기질 모두에만 고르게 분자체 입자를 부착시킬 수 있어서 기질-분자체막 복합체의 대량 생산이 가능하도록 개선된, 초음파를 이용하는 기질-분자체막 복합체의 제조방법 및 이에 사용되는 제조장치에 관한 것이다. 초음파, 기질-분자체막 복합체, 부착강도, 부착속도, 조밀도, 대량생산