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公开(公告)号：US09926266B2
公开(公告)日：2018-03-27
申请号：US15292106
申请日：2016-10-12
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyoung-Juhn Kim , Eun Ki Kim , So Young Lee , Jong Hyun Jang , Jin Young Kim , Sung Jong Yoo , Dirk Henkensmeier , Dae Ki Choi , Jonghee Han , Suk Woo Nam
IPC: C07C303/44 , C07C303/32 , C07C309/24
CPC classification number: C07C303/44 , C07C303/32 , C07C309/24
Abstract: Disclosed are a method for preparing a pure isophthalaldehyde bisulfite adduct free from impurities through a specific purification process, and use thereof as a starting material for polymerizing polybenzimidazole under a mild condition. According to the present disclosure, it is possible to obtain a pure isophthalaldehyde bisulfite adduct free from impurities, such as unreacted materials or byproducts. In addition, it is possible to accomplish industrial mass production of a high-molecular weight polybenzimidazole by using the adduct as a starting material for polymerizing polybenzimidazole under a mild condition in an organic solvent.
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32.发明授权Ceria-based composition including bismuth oxide, ceria-based composite electrolyte powder including bismuth oxide, method for sintering the same and sintered body made thereof 有权包含氧化铋的二氧化铈基组合物，包括氧化铋的氧化铈复合电解质粉末，其烧结方法和由其制成的烧结体公开(公告)号：US09252448B2
公开(公告)日：2016-02-02
申请号：US13929954
申请日：2013-06-28
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sung Pil Yoon , Jonghee Han , Shin Ae Song , Tae Hoon Lim , Hyoung-Juhn Kim , Jong Hyun Jang , Dirk Henkensmeier , Eun Ae Cho , Suk Woo Nam , Seong Ahn Hong , Thieu Cam-Anh
IPC: H01M8/12 , C04B35/50 , C04B35/626
CPC classification number: H01M8/126 , C04B35/50 , C04B35/62675 , C04B35/62685 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3244 , C04B2235/3298 , C04B2235/77 , C04B2235/85 , H01M8/1266 , H01M2300/0074 , H01M2300/0091 , Y02E60/521 , Y02E60/525 , Y02P70/56
Abstract: Provided are a ceria-based composition having an undoped or metal-doped ceria and an undoped or metal-doped bismuth oxide, wherein the undoped or metal-doped bismuth oxide is present in an amount equal to or more than about 10 wt % and less than about 50 wt % based on the total weight of the ceria-based composition, and at least one selected from the ceria and the bismuth oxide is metal-doped. The ceria-based composition may ensure high sintering density even at a temperature significantly lower than the known sintering temperature of about 1400° C., i.e., for example at a temperature of about 1000° C. or lower, and increase ion conductivity as well.
Abstract translation: 提供了一种具有未掺杂或金属掺杂的二氧化铈和未掺杂或金属掺杂的氧化铋的二氧化铈基组合物，其中未掺杂或金属掺杂的氧化铋以等于或大于约10重量％的量存在 相对于二氧化铈基组合物的总重量为约50重量％，并且选自二氧化铈和氧化铋中的至少一种是金属掺杂的。 即使在显着低于约1400℃的已知烧结温度的温度下，即例如在约1000℃或更低的温度下，二氧化铈基组合物也可确保高的烧结密度，并且还增加离子传导性 。
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33.发明授权公开(公告)号：US09214692B2
公开(公告)日：2015-12-15
申请号：US13761322
申请日：2013-02-07
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyoung-Juhn Kim , Eun Ae Cho , Jong Hyun Jang , Dae Ki Choi , Chang Won Yoon , Suk-Woo Nam , Dirk Henkensmeier , Tae Hoon Lim
CPC classification number: H01M8/103 , C08G73/18 , C08G73/22 , C08L79/04 , H01M8/1048 , Y02E60/521 , Y02P70/56
Abstract: Provided is poly(benzimidazole-co-benzoxazole) having polybenzimidazole to which benzoxazole units are introduced, as a polymer electrolyte material. The polymer electrolyte material has both high proton conductivity and excellent mechanical properties even when it is obtained by in-situ phosphoric acid doping. The polymer electrolyte material may substitute for the conventional phosphoric acid-doped polybenzimidazole in a polymer electrolyte membrane fuel cell, particularly in a high-temperature polymer electrolyte membrane fuel cell.
Abstract translation: 提供具有导入苯并恶唑单元的聚苯并咪唑的聚（苯并咪唑 - 共苯并恶唑）作为聚合物电解质材料。 即使通过原位磷酸掺杂获得，聚合物电解质材料也具有高质子传导性和优异的机械性能。 聚合物电解质材料可以在聚合物电解质膜燃料电池中，特别是在高温聚合物电解质膜燃料电池中替代常规磷酸掺杂的聚苯并咪唑。
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公开(公告)号：US11695147B2
公开(公告)日：2023-07-04
申请号：US17013918
申请日：2020-09-08
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： So Young Lee , Seung Ju Lee , Hyun Seo Park , Jin Young Kim , Sung Jong Yoo , Jong Hyun Jang , Hyoung-Juhn Kim , Hee-Young Park
IPC: H01M8/1051 , H01M8/1039 , C08K3/32 , C08K7/08 , C08F14/18 , H01M8/10
CPC classification number: H01M8/1051 , C08F14/185 , C08K3/32 , C08K7/08 , H01M8/1039 , C08K2003/328 , C08K2201/003 , C08K2201/011 , H01M2008/1095 , H01M2300/0082
Abstract: Disclosed is an antioxidant for a polymer electrolyte membrane of a fuel cell including cerium hydrogen phosphate (CeHPO4). The presence of cerium hydrogen phosphate in the antioxidant enhances the dissolution stability of cerium and improves the ability to capture water, leading to an increase in proton conductivity. In addition, the cerium hydrogen phosphate has a crystal structure composed of smaller cerium particles. This crystal structure greatly improves the ability of the antioxidant to prevent oxidation of the electrolyte membrane. Also disclosed are an electrolyte membrane including the antioxidant, a fuel cell including the electrolyte membrane, a method for preparing the antioxidant, a method for producing the electrolyte membrane, and a method for fabricating the fuel cell.
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公开(公告)号：US11430996B2
公开(公告)日：2022-08-30
申请号：US16802206
申请日：2020-02-26
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sung Jong Yoo , Injoon Jang , Hee-Young Park , So Young Lee , Hyun Seo Park , Jin Young Kim , Jong Hyun Jang , Hyoung-Juhn Kim
Abstract: A method is disclosed for preparing a metal single-atom catalyst for a fuel cell including the steps of depositing metal single atoms to a nitrogen precursor powder, mixing the metal single atom-deposited nitrogen precursor powder with a carbonaceous support, and carrying out heat treatment. The step of depositing metal single atoms is carried out by sputtering, thermal evaporation, E-beam evaporation or atomic layer deposition. The method uses a relatively lower amount of chemical substances as compared to conventional methods, is eco-friendly, and can produce a single-atom catalyst at low cost. In addition, unlike conventional methods which are limited to certain metallic materials, the present method can be applied regardless of the type of metal.
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Patent Agency Ranking
36.发明授权公开(公告)号：US11090634B2
公开(公告)日：2021-08-17
申请号：US16268913
申请日：2019-02-06
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY , GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS
Inventor： Sung Jong Yoo , Sehyun Lee , Hee-Young Park , Jong Hyun Jang , Jin Young Kim , Hyoung-Juhn Kim , Jea-woo Jung
Abstract: Disclosed is a method for preparing a carbon-supported platinum-transition metal alloy nanoparticle catalyst using a stabilizer. According to the method, the transition metal on the nanoparticle surface and the stabilizer are simultaneously removed by treatment with acetic acid. Therefore, the method enables the preparation of a carbon-supported platinum-transition metal alloy nanoparticle catalyst in a simple and environmentally friendly manner compared to conventional methods. The carbon-supported platinum-transition metal alloy nanoparticle catalyst can be applied as a high-performance, highly durable fuel cell catalyst.
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公开(公告)号：US10975476B2
公开(公告)日：2021-04-13
申请号：US16198286
申请日：2018-11-21
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun Jang , Seunghoe Choe , Youngseung Na , Hye Jin Lee , Ahyoun Lim , Hyoung-Juhn Kim , Dirk Henkensmeier , Sung Jong Yoo , Jin Young Kim , So Young Lee , Hyun Seo Park
IPC: C25B1/04 , C25D9/06 , C25B9/23 , C25B11/031 , C25B11/075 , C25B11/063 , C25B11/052 , C25D9/04
Abstract: The present disclosure relates to an IrO2 electrodeposited porous titanium composite layer of a polymer electrolyte membrane water electrolysis apparatus serving as both a diffusion layer and an oxygen electrode, the apparatus including: a porous titanium (Ti) layer; and an electrodeposited iridium oxide (IrO2) layer on the porous Ti layer. The IrO2 layer may be uniformly deposited on a porous Ti layer through an electrolysis process, and the electrodeposited IrO2 layer may play multiple roles as not only a catalyst layer toward oxygen evolution reaction (OER) on the surface of the Ti layer, but also a corrosion-protection layer which prevents an inner Ti layer from corrosion.
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公开(公告)号：US10850270B2
公开(公告)日：2020-12-01
申请号：US16177203
申请日：2018-10-31
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY , GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS
Inventor： Sung Jong Yoo , Injoon Jang , So Young Lee , Hyun Seo Park , Jin Young Kim , Jong Hyun Jang , Hyoung-Juhn Kim
Abstract: Disclosed is a method for preparing a carbon-supported metal oxide and/or alloy nanoparticle catalyst. According to the method, a carbon-supported metal oxide and/or alloy nanoparticle catalyst is prepared by depositing metal oxide and/or alloy nanoparticles on a water-soluble support and dissolving the metal oxide and/or alloy nanoparticles deposited on the water-soluble support in an anhydrous polar solvent containing carbon dispersed therein to support the metal oxide and/or alloy nanoparticles on the carbon. The anhydrous polar solvent has much lower solubility for the water-soluble support than water and is used to dissolve the water-soluble support. The use of the anhydrous polar solvent instead of water can prevent the water-soluble support present at a low concentration in the solution from impeding the support of the nanoparticles on the carbon, thus providing a solution to the problems of environmental pollution, high cost, and complexity encountered in conventional chemical and physical synthetic methods.
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公开(公告)号：US20200283307A1
公开(公告)日：2020-09-10
申请号：US16534294
申请日：2019-08-07
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY , INDUSTRIAL COOPERATION FOUNDATION CHONBUK NATIONAL UNIVERSITY , GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS
Inventor： Sung Jong YOO , Sehyun Lee , Hee-Young Park , So Young Lee , Hyun Seo Park , Jin Young Kim , Jong Hyun Jang , Hyoung-Juhn Kim , Pil Kim , Jae Young Jung , Yeonsun Sohn
Abstract: Disclosed are a perovskite compound, a method for producing the perovskite compound, a catalyst for a fuel cell including the perovskite compound, and a method for producing the catalyst. The perovskite compound overcomes the low stability of palladium due to its perovskite structural properties. Therefore, the perovskite compound can be used as a catalyst material for a fuel cell. In addition, the use of palladium in the catalyst instead of expensive platinum leads to an improvement in the price competitiveness of fuel cells. The catalyst is highly durable and catalytically active due to its perovskite structure.
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40.发明授权公开(公告)号：US10601075B2
公开(公告)日：2020-03-24
申请号：US14718170
申请日：2015-05-21
Inventor： Hyoung-Juhn Kim , Jong Hyub Park , Jin Ho Kim , So Young Lee
IPC: C08G75/23 , C08G75/20 , H01M10/0565
Abstract: As a polymerization solvent for use in the polymerization of monomers for a hydrocarbon-based electrolyte polymer, a mixed solvent containing a first solvent, such as dimethyl acetamide, N-methylpyrrolidone or dimethyl sulfoxide, and an alcohol as a second solvent is used instead of a dimethyl acetamide/toluene mixture or dimethyl acetamide alone according to the related art. By using the mixed solvent, it is possible to obtain a molecular weight of polymer equal to or higher than the molecular weight of polymer obtained from the method according to the related art, even when the reaction time is reduced. Therefore, the disclosed method and polymerization solvent is very useful for a mass production of a hydrocarbon-based electrolyte polymer.
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