Patents Assigned to Korea Institute of Energy Research
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Publication number: 20240359997Abstract: The present invention relates to lithium metal oxide nanoparticles and a method for preparing the same and provides lithium metal oxide nanoparticles each having a shape of a hexahedron with a square outer cross section or a hexahedron with at least one chamfered corner and comprising a hollow of which a cross section is a square or a square having at least one chamfered corner, and a method for preparing the same, so that the lithium metal oxide nanoparticles can be utilized as an electrode material of a next-generation electronic device in which a contact area between an electrode and an electrolyte is increased to improve the charge and discharge rate characteristics and improve the conductivity.Type: ApplicationFiled: April 28, 2023Publication date: October 31, 2024Applicants: KOREA INSTITUTE OF ENERGY RESEARCH, Center for Advanced Meta-MaterialsInventors: Hyun Uk KIM, Seong Ok HAN, Tae Woo KIM, Se Gi BYUN, Jung Joon YOO, IYAN SUBIYANTO, Hak Joo LEE
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Publication number: 20240351880Abstract: Provided is a method for preparing single-walled carbon nanotubes (SWCNTs), including the steps of: (a) depositing a metal catalyst in the form of single atom or atomic cluster on a catalyst support to prepare a single-atom catalyst or an atomic cluster catalyst; and (b) growing carbon nanotubes on the single-atom catalyst or the atomic cluster catalyst to prepare single-walled carbon nanotubes (SWCNTs). According to the method, it is possible to uniformly mass-produce single-walled carbon nanotubes (SWCNTs) having excellent heat conductivity, electroconductivity, mechanical strength, dispersibility, or the like.Type: ApplicationFiled: April 10, 2024Publication date: October 24, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Hee-yeon KIM, Cha-heon KIM, So Jung KIM
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Publication number: 20240288157Abstract: The present disclosure relates to relates to an industrial premixed gas combustor using internal exhaust gas recirculation and an operating method thereof.Type: ApplicationFiled: December 13, 2022Publication date: August 29, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Min-Jung LEE, Young-tae GUAHK, Chang-bog KO, Eun-kyung LEE, Dae Keun LEE, Seung-gon KIM, Woo-Nam JUNG, Hookyung LEE, Dong Myung SEO, Nam Su KIM
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Publication number: 20240286108Abstract: The present invention is to provide a carbon dioxide adsorbent that can collect carbon dioxide generated during a natural gas reforming process at a high concentration and has an excellent adsorption working capacity, a manufacturing method of the same, and a device and process using the same. The carbon dioxide adsorbent according to various examples of the present invention is characterized by including X-type or Y-type zeolite in which at least a part of alkali metal cations or alkali earth metal cations is replaced with H+ ions.Type: ApplicationFiled: April 23, 2024Publication date: August 29, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Jong-ho PARK, Hyung Jin YOON, Hee-tae BEUM, Sang-sup HAN, Jongkee PARK, Ko-yeon CHOO
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Publication number: 20240253026Abstract: Provided are a core-shell catalyst with improved durability and a manufacturing method thereof including irradiating ultrasonic waves to a solution containing a reducing solvent, a noble metal precursor, a transition metal precursor, and a carbon support to form a cavity due to the irradiation of the ultra-waves and forming transition metal precursor core and noble metal precursor shell particles due to a difference in vapor pressure; and nitriding the transition metal precursor core and noble metal precursor shell particles at a temperature of 450 to 550° C. and a pressure condition of 60 to 100 bar under a gaseous nitrogen source, in which the transition metal may be any one selected from the group consisting of Y, La, Ce, Zn, and Mn or combinations thereof.Type: ApplicationFiled: January 12, 2024Publication date: August 1, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Gu-Gon PARK, Eunjik LEE, Sung-Dae YIM, Seok-Hee PARK, Minjin KIM, Young-Jun SOHN, Byungchan BAE, Seung-Gon KIM, Dongwon SHIN, Seung Wook CHOI, Hwangyeong OH, Seung Hee WOO, So Jeong LEE, Hyejin LEE, Yoon Young CHOI, Yun Sik KANG, Won-Yong LEE, Tae-Hyun YANG
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Publication number: 20240253135Abstract: According to an embodiment of the invention, there is provided a partial dismantling device of a photovoltaic module, including: a worktable on which the photovoltaic module is loaded and which has a first transport unit that transports the loaded photovoltaic module; a first cutting unit, having a plurality of first cutters spaced apart from each other, that cuts a part of the photovoltaic module through a relative movement with respect to the photovoltaic module loaded on the worktable; and a second cutting unit, having a plurality of second cutters spaced apart from each other, that is disposed at the rear of the first cutting unit and cuts other parts of the photovoltaic module transported rearward without being cut by the first cutting unit.Type: ApplicationFiled: March 10, 2023Publication date: August 1, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Jin-seok Lee, Gi-hwan Kang, Young-soo Ahn
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Publication number: 20240216894Abstract: The present invention provides a composite catalyst for diminishing energy demand during carbon dioxide absorbent regeneration and a method for producing the same. The present invention more particularly relates to a composite catalyst in which the surface or inside of activated carbon activated carbon used as a porous carrier is modified with oxides of one or more metals selected from a transition metal group consisting of Fe, Ni, and Mo, and a method for producing the composite catalyst. The activated carbon composite catalyst modified with a metal of the present invention is able to regenerate MEA (monoethanolamine) at a low temperature of 100° C. or below to diminish heat consumption, can decrease the heat duty by increasing the carbon dioxide desorption rate at a low temperature of 100° C.Type: ApplicationFiled: February 2, 2023Publication date: July 4, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Sung Chan NAM, Il Hyun BAEK, Jong Tak JANG
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Publication number: 20240201214Abstract: An automated liquid sample device is disclosed.Type: ApplicationFiled: August 6, 2021Publication date: June 20, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Dong Hyun CHUN, Min Hye YOUN, Geun Bae RHIM
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Publication number: 20240181436Abstract: A single atom catalyst for carbon dioxide conversion which allows mass production at low cost without performing a pretreatment of a carbon support and a post-treatment of a final synthesized catalyst is prepared. The single atom catalyst for carbon dioxide conversion was confirmed to have a low metal content to reduce production costs, and to have high carbon monoxide selectivity, carbon monoxide production rate, and stability.Type: ApplicationFiled: November 27, 2023Publication date: June 6, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Young-eun KIM, Wonhee LEE, You Na KO, Hak-joo KIM
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Publication number: 20240188428Abstract: The present invention discloses a conductive substrate, a perovskite substrate using the conductive substrate, and a solar cell using the perovskite substrate. The conductive substrate, the perovskite substrate, and the solar cell of the present invention include a conductive base and a conductive compound stacked on the conductive base. The conductive compound is represented by Formula 1, 2 or 3. The conductive compound is capable of multi-electron redox reactions, possesses p-type organic molecular properties, and has an oxidation potential or highest occupied molecular orbital (HOMO) matching the valence band of perovskite so that holes generated in an absorber layer are selectively separated for the application of the perovskite material, achieving enhanced photoelectric conversion efficiency of the solar cell and a significantly reduced difference between the forward and reverse conversion efficiencies (hysteresis index) of the solar cell.Type: ApplicationFiled: October 29, 2021Publication date: June 6, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Sung-jun HONG, Chi-hwan HAN, Se-jin AHN, Inyoung JEONG, Asmat ULLAH
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Publication number: 20240157351Abstract: An example of the present invention provides a metal composite catalyst for ammonia decomposition and hydrogen production including a carrier; and Ni metal particles dispersed on a surface of the carrier or inside a pore, in which a content of the Ni metal particle is 15 to 70 parts by weight with reference to 100 parts by weight of the metal composite catalyst, and a diameter of the Ni metal particle is 60 nm or less. More specifically, the metal composite catalyst according to an example of the present invention is manufactured by an ultrasonic method, includes an aging step, and exhibits high efficiency and economy in ammonia decomposition and hydrogen production processes.Type: ApplicationFiled: September 5, 2023Publication date: May 16, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Kee Young KOO, Ji Yu KIM, Un Ho JUNG, Yong Ha PARK
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Patent number: 11947029Abstract: The present disclosure relates to a system and method for detecting occupants, and more specifically, to a system and method for accurately detecting positions of occupants in a building using beacon signals.Type: GrantFiled: October 28, 2021Date of Patent: April 2, 2024Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Yu Jin Song, Yoon Dong Sung, Kuk Yeol Bae, Gi Hwan Yoon
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Publication number: 20240100469Abstract: The present disclosure relates to a pressure swing adsorption apparatus for hydrogen purification from decomposed ammonia gas and a hydrogen purification method using the same, and more particularly, the pressure swing adsorption apparatus of the present disclosure includes a plurality of adsorption towers including a pretreatment unit and a hydrogen purification unit wherein the adsorption towers of the pretreatment unit and the hydrogen purification unit are packed with different adsorbents, thereby achieving high purity hydrogen purification from mixed hydrogen gas produced after ammonia decomposition, making it easy to replace the adsorbent for ammonia removal, minimizing the likelihood that the lifetime of the adsorbent in the hydrogen purification unit is drastically reduced by a very small amount of ammonia, and actively responding to a large change in ammonia concentration in the raw material.Type: ApplicationFiled: April 11, 2022Publication date: March 28, 2024Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Hyung-chul YOON, Sang-sup HAN, Hee-tae BEUM, Kanghee CHO, Sun Hyung KIM, Hyung Kuk JU
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Publication number: 20240106222Abstract: An embodiment of the present disclosure provides an arc risk management method comprising: pre-processing measurement values of currents flowing into an electric apparatus; estimating a level of arc energy in the electric apparatus by inputting the measurement values into one artificial intelligence network comprising a first layer including a dilated convolutional neural network and a second layer including a recurrent neural network; and indicating an arc risk to the electric apparatus in a quantitative way according to the level of arc energy.Type: ApplicationFiled: September 12, 2023Publication date: March 28, 2024Applicant: Korea Institute of Energy ResearchInventors: Yoon Dong SUNG, Gi Hwan YOON, Kuk-Yeol BAE, Suk In PARK, Mo Se KANG, Hak Geun JEONG, Hye Jin KIM
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Publication number: 20240075432Abstract: Provided are a hollow fiber composite membrane for water vapor separation, comprising a hollow fiber membrane including two or more pores and a coating layer in which an interfacial polymer obtained from interfacial polymerization of water-soluble monomer and an organic monomer is coated on a surface of the hollow fiber membrane, and a chemical resistant substance is introduced in the interfacial polymer, and a method for manufacturing the same.Type: ApplicationFiled: November 16, 2022Publication date: March 7, 2024Applicants: KOREA INSTITUTE OF ENERGY RESEARCH, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jae Deok JEON, Soon Jin KWON, Won Kil CHOI, So Jung PARK
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Patent number: 11897903Abstract: The present invention relates to a metal-organic framework and an energy storage system having the same, and more specifically, to an energy storage system that is capable of providing excellent electrical conductivity and electrochemical capacity properties, especially excellent electrochemical performance at low temperatures, by means of a novel one-dimensional metal-organic framework having thianthrene-based organic ligands.Type: GrantFiled: November 2, 2022Date of Patent: February 13, 2024Assignees: KOREA INSTITUTE OF ENERGY RESEARCH, CENTER FOR ADVANCED META-MATERIALSInventors: Hyun Uk Kim, Seong Ok Han, Jung Joon Yoo, Tae Woo Kim, Se Gi Byun, Hak Joo Lee, Young Hoon Seong, Yogendra Kumar
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Patent number: 11872519Abstract: Disclosed is a carbon dioxide absorbent and a carbon dioxide separation method using the same that greatly reduces energy consumption due to a small amount of latent heat required in regeneration of absorbents, enhances CO2 absorption rate, undergoes almost no thermal denaturation even at high temperatures while absorbing carbon dioxide, and results in a considerable reduction of the cost associated with absorption of carbon dioxide.Type: GrantFiled: October 16, 2018Date of Patent: January 16, 2024Assignees: SOGANG UNIVERSITY RESEARCH FOUNDATION, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, KOREA CARBON CAPTURE & SEQUESTRATION R&D CENTER, KOREA INSTITUTE OF ENERGY RESEARCHInventors: Kwang Soon Lee, Hoon Sic Kim, Hui Yong Kim, Jung Hwan Kim, Sung June Hwang, Ja Yeop Kim, Shin Young Bae, Su Jin Na, Sang Do Park, Tae Sung Park, Yun Je Lee, Jong Kyun You
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Publication number: 20230420696Abstract: The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by including the steps of adsorbing carbon monoxide on a transition metal for a core, and reacting carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent to form particles with a core-shell structure having a reduced metal shell layer formed on a transition metal core.Type: ApplicationFiled: September 12, 2023Publication date: December 28, 2023Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Gu-gon PARK, Eun Jik LEE, Kyunghee KIM, Sung-dae YIM, Seok-hee PARK, Min-ji KIM, Young-jun SOHN, Byungchan BAE, Seung-gon KIM, Dongwon SHIN, Hwanyeong OH, Seung Hee WOO, So Jeong LEE, Hyejin LEE, Yoon Young CHOI, Won-yong LEE, Tae-hyun YANG
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Publication number: 20230420691Abstract: Disclosed is a method of manufacturing a cathode for a solid oxide fuel cell (SOFC) including preparing an electrode composition containing urea, ultrasonically spraying the electrode composition onto a GDC scaffold, and drying the scaffold. By using urea, calcination (?700° C.) after each infiltration cycle can be omitted, the next infiltration cycle is performed immediately after the drying (?100° C.), and thus the cathode manufacturing process time can be greatly reduced. Disclosed is also a solid oxide fuel cell including an anode support, an anode functional layer disposed on the anode support, an electrolyte disposed on the anode functional layer, and a cathode disposed on the electrolyte, wherein the cathode is formed by ultrasonic spraying using an electrode composition containing urea.Type: ApplicationFiled: February 22, 2023Publication date: December 28, 2023Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Seung Bok LEE, Rak Hyun SONG, Seok Joo PARK, Tak Hyoung LIM, Jong Eun HONG, Dong Woo JOH, Hye Sung KIM, SAEED UR REHMAN
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Publication number: 20230402619Abstract: A method for preparing a platinum alloy catalyst using an oxide coating according to an embodiment of the present disclosure comprises: a first step of preparing a dispersion by mixing a commercial platinum catalyst and a transition metal precursor with a solvent; a second step of preparing a catalyst by putting an ultrasonic tip into the dispersion prepared through the first step and performing an ultrasonic process; a third step of performing a primary heat treatment process on the catalyst prepared through the second step; a fourth step of performing an acid treatment process on the catalyst that has undergone the primary heat treatment process through the third step; and a fifth step of preparing a platinum alloy catalyst by performing a secondary heat treatment process on the catalyst that has undergone the acid treatment process through the fourth step.Type: ApplicationFiled: March 23, 2023Publication date: December 14, 2023Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Eun Jik LEE, Gu-gon PARK, DongJe LEE, Sung-dae YIM, Seok-hee PARK, Min-jin KIM, Young-jun SOHN, Byungchan BAE, Seung-gon KIM, Dongwon SHIN, Hwanyeong OH, Seung Hee WOO, So Jeong LEE, Hyejin LEE, Yoon Young CHOI, Yun Sik KANG, Won-yong LEE, Tae-hyun YANG