Abstract: The present disclosure discloses a carbon dioxide capture agent and a carbon dioxide capture and reduction system using the same. The system includes an electrochemical reaction unit including a reduction electrode, an oxidation electrode, and a separation membrane separating the reduction electrode and the oxidation electrode; a carbon dioxide capture unit capturing carbon dioxide and supplying a carbon dioxide capture solution to the reduction electrode of the electrochemical reaction unit; and an oxidation reaction electrolyte unit supplying an aqueous solution to the oxidation electrode of the electrochemical reaction unit, and the carbon dioxide capture unit includes the carbon dioxide capture agent. The carbon dioxide capture agent can be regenerated through a subsequent electrochemical reaction after capturing carbon dioxide.

Abstract: A method for preparing and separating alkylene carbonate using carbon dioxide in air is disclosed herein. The method comprises the steps of: injecting air containing carbon dioxide into an amine solution containing a diamine compound to obtain a solution in which carbon dioxide is captured; adding alkylene oxide, a catalyst, and a solvent to the solution in which carbon dioxide is captured, and reacting to obtain a solution in which alkylene carbonate is produced; and separating alkylene carbonate from the solution in which alkylene carbonate is produced.

Abstract: Provided are a basic electrocatalyst applied to a carbon dioxide reduction and ethylene production system, a basic electrocatalyst electrode and an apparatus each including the same, and a method of manufacturing the basic electrocatalyst electrode. The basic electrocatalyst electrode for for carbon dioxide reduction and ethylene production includes: catalyst particles each including copper hydroxide (Cu(OH)2); and a basic compound. Since the basic electrocatalyst electrode has high carbon dioxide reduction performance and high ethylene selectivity, the basic electrocatalyst electrode may be applied to a reduction electrode of a carbon dioxide reduction and ethylene production apparatus and may exhibit high current density and high ethylene selectivity. The basic electrocatalyst electrode may be manufactured by a simple method, and may be applied to a large-area electrode.

Abstract: A catalyst electrode for production of 2,5-furandicarboxylic acid according to an embodiment of the present invention includes: a first metal substrate; and a second metal hydroxide coating layer located on a surface of the first metal substrate, wherein the first metal substrate includes one or more micro-sized first metal particles on the surface thereof, and the second metal hydroxide coating layer may be located on a surface of the first metal particles.

Abstract: Exemplary embodiments of the present invention may provide a continuous production system for 2,5-furandicarboxylic acid (FDCA), the continuous production system including: raw material supply units supplying an aqueous 5-hydroxymethylfurfural (HMF) solution and a basic aqueous solution, respectively; a micro-mixing unit mixing the aqueous HMF solution and the basic aqueous solution supplied from the raw material supply units, respectively, to form a raw material mixture; an electrochemical reaction unit synthesizing FDCA while passing the raw material mixture introduced from the micro-mixing unit in a single pass; and a product storage unit storing a product discharged from the electrochemical reaction unit.

Abstract: Proposed is a CO2-reduction membrane electrode assembly (MEA), which is a novel MEA capable of changing a reaction condition to an alkaline condition from a problematic acidic condition unfavorable to reactions on a cathode side during catalytic reactions using a cation exchange membrane (CEM) as a separator. In addition, the MEA can reduce a hydrogen evolution reaction (HER), which is a side reaction. In addition, a method of manufacturing the MEA, and a CO2-reduction assembly including the MEA are also proposed.

Abstract: According to one embodiment of the present invention, there is provided a catalyst compound, which comprises a compound of Chemical Formula 1 below and catalyzes the process of oxidizing 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA): NiCoxPy??[Chemical Formula 1] (wherein x and y are the molar ratio for Ni contained in the catalyst compound, 0<x<1, 0<y<1).

Abstract: Provided are a basic electrocatalyst applied to a carbon dioxide reduction and ethylene production system, a basic electrocatalyst electrode and an apparatus each including the same, and a method of manufacturing the basic electrocatalyst electrode. The basic electrocatalyst electrode for for carbon dioxide reduction and ethylene production includes: catalyst particles each including copper hydroxide (Cu(OH)2); and a basic compound. Since the basic electrocatalyst electrode has high carbon dioxide reduction performance and high ethylene selectivity, the basic electrocatalyst electrode may be applied to a reduction electrode of a carbon dioxide reduction and ethylene production apparatus and may exhibit high current density and high ethylene selectivity. The basic electrocatalyst electrode may be manufactured by a simple method, and may be applied to a large-area electrode.

Abstract: A chalcopyrite compound-based thin film in which an alkali metal is incorporated, and a method of fabricating the same are provided. The chalcopyrite compound-based thin film in which an alkali metal is incorporated may have improved film characteristics such as excellent chalcopyrite crystal characteristics and improved surface characteristics, and may exhibit improved optical characteristics by control of the distribution of constituent elements in the chalcopyrite compound layer. Accordingly, performance of a solar cell including the chalcopyrite compound-based thin film may be improved. The chalcopyrite compound-based thin film may be easily fabricated through a solution process.