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1.发明授权公开(公告)号：US09413014B2
公开(公告)日：2016-08-09
申请号：US14171906
申请日：2014-02-04
Inventor： Sung Jong Yoo , Hee-young Park , Jong Hyun Jang , Hyoung-Juhn Kim , Tae-Hoon Lim , Sang Young Lee , Sang Hyun Ahn , Namgee Jung , Suk Woo Nam , Eun Ae Cho , Seok Keun Koh
CPC classification number: H01M4/9083 , H01M4/9041 , H01M4/921 , H01M4/926 , Y02E60/50
Abstract: The present disclosure relates to a method and an apparatus for preparing nanosized metal or alloy nanoparticles by depositing metal or alloy nanoparticles with superior size uniformity on the surface of a powder as a base material by vacuum deposition and then dissolving or melting the base material using a solvent or heat. The method solves the problems of the existing expensive multi-step synthesis method based on chemical reduction and allows effective synthesis of metal or alloy nanoparticles with very uniform size and metal or alloy catalyst nanoparticles supported on carbon at low cost.
Abstract translation: 本公开内容涉及一种通过在真空沉积作为基材的粉末表面上沉积具有优异尺寸均匀性的金属或合金纳米颗粒来制备纳米尺寸金属或合金纳米颗粒的方法和装置，然后使用 溶剂或热量。 该方法解决了基于化学还原的现有昂贵的多步合成方法的问题，并且能够有效合成具有非常均匀尺寸的金属或合金纳米颗粒，并以低成本负载在碳上的金属或合金催化剂纳米颗粒。
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公开(公告)号：US11799089B2
公开(公告)日：2023-10-24
申请号：US17571662
申请日：2022-01-10
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： So Young Lee , Seung Ju Lee , Jin Hyeon Choi , Jeawoo Jung , Hyoung-Juhn Kim , Sung Jong Yoo , Hee-Young Park , Bora Seo , Jin Young Kim , Jong Hyun Jang
IPC: H01M4/86 , H01M8/1004 , H01M4/90 , H01M4/92 , H01M8/1018 , H01M8/10
CPC classification number: H01M4/8663 , H01M4/8605 , H01M4/9041 , H01M4/9083 , H01M4/926 , H01M8/1004 , H01M8/1018 , H01M2008/1095 , H01M2300/0082
Abstract: The present disclosure relates to antioxidant for a polymer electrolyte membrane fuel cell electrode catalyst, which includes cerium hydrogen phosphate (HCe2(PO4)3(H2O)) in the form of a nanofiber, and an electrode and a membrane-electrode assembly including the same. The electrode for a polymer electrolyte membrane fuel cell of the present disclosure, wherein the antioxidant is dispersed, can improve the mechanical strength of an electrode catalyst layer and can minimize deterioration of chemical durability even after long-term operation. And, a fuel cell including the same can exhibit high output performance and can operate stably even after long-term operation.
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公开(公告)号：US11342565B2
公开(公告)日：2022-05-24
申请号：US16841371
申请日：2020-04-06
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hee-Young Park , Jong Hyun Jang , Hyean-Yeol Park , Jea-Woo Jung , Katie Heeyum Lim , Hyoung-Juhn Kim , Dirk Henkensmeir , Sung Jong Yoo , Jin Young Kim , Hyun Seo Park , So Young Lee
IPC: H01M4/92 , H01M8/1004 , H01M4/88
Abstract: The present disclosure relates to a fuel cell catalyst and a manufacturing method thereof. The fuel cell catalyst can be used to manufacture a membrane electrode assembly having a catalyst layer of high density and high dispersion by solving the problem of aggregation of catalyst particles occurring during the formation of the catalyst layer, by using a catalyst including a polydopamine-coated support. In addition, the method for manufacturing the fuel cell catalyst does not require a solvent because the catalyst including the polydopamine-coated support, wherein from 0.1 to 1% of the hydroxy groups contained in catechol groups of the polydopamine are replaced by halide atoms, in solid phase are simply heat-treated by solid-to-solid dry synthesis which allows manufacturing of a fuel cell catalyst in a short time by eliminating the need for a washing process using a solvent and an extraction process for sampling after the synthesis.
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公开(公告)号：US10461350B2
公开(公告)日：2019-10-29
申请号：US15686689
申请日：2017-08-25
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun Jang , Hyoung-Juhn Kim , Sung Jong Yoo , Jin Young Kim , Hyung Chul Ham , Dirk Henkensmeier , So Young Lee , Hyun Seo Park , Youngseung Na , Min Gwan Ha
IPC: C25B3/04 , C25B13/08 , C25B11/04 , C25B9/08 , H01M8/1018 , H01M8/00 , H01M8/0276
Abstract: Disclosed is an electrochemical reaction cell enhancing a reduction reaction. The electrochemical reaction cell enhancing a reduction reaction comprises: a membrane electrode assembly including a polymer electrolytic membrane, a cathode formed by sequentially stacking a first gas diffusion layer and a first catalyst layer on one surface of the electrolytic membrane, and an anode formed by sequentially stacking a second catalyst layer and a second gas diffusion layer on the other surface of the electrolytic membrane; a first distribution plate stacked on the first catalyst layer to supply a reaction gas and a cathode electrolytic solution dissolved with the reaction gas to the first catalyst layer along separate channels; and a second distribution plate stacked on the second gas diffusion layer to supply an anode electrolytic solution to the second gas diffusion layer.
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公开(公告)号：US10236527B2
公开(公告)日：2019-03-19
申请号：US14983439
申请日：2015-12-29
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Dirk Henkensmeier , Dickson Joseph , Jong Hyun Jang , Jin Young Kim , Hyoung-Juhn Kim , Jonghee Han , Suk Woo Nam , Sung Pil Yoon
IPC: H01M8/1023 , H01M8/1039 , H01M8/1053 , H01M8/1067 , H01M8/1081
Abstract: Provided are a method for preparing a Nafion membrane having a through-pore free monolithic porous structure throughout the bulk of the membrane through a one-step process very easily and a Nafion membrane having a through-pore free monolithic porous structure obtained from the method. The Nafion membrane having such a porous structure may have an increased surface area, and thus may improve the membrane/catalyst interfacial area and transport characteristics.
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Patent Agency Ranking
公开(公告)号：US10186712B2
公开(公告)日：2019-01-22
申请号：US15790051
申请日：2017-10-23
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyung Chul Ham , Jinwon Cho , Hyun Seo Park , Jong Hyun Jang , Sung Jong Yoo , Chang Won Yoon , Hyoung-Juhn Kim , Sung Pil Yoon , Jonghee Han , Suk Woo Nam
IPC: H01M4/92 , H01M12/06 , C22C38/04 , B01J25/00 , B01J23/62 , B01J23/644 , C22C5/04 , H01M4/86 , H01M8/1018
Abstract: Provided is a catalyst for an oxygen reduction reaction, including an alloy in which two metals are mixed, in which the corresponding alloy is an alloy of iridium (Ir); and silicon (Si), phosphorus (P), germanium (Ge), or arsenic (As). The corresponding catalyst for the oxygen reduction reaction may have excellent price competitiveness while exhibiting a catalytic activity which is equal to or similar to that of an existing Pt catalyst. Accordingly, when the catalyst is used, the amount of platinum catalyst having low price competitiveness may be reduced, so that a production unit cost of a system to which the corresponding catalyst is applied may be lowered.
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7.发明授权Dibenzylated polybenzimidazole based polymer and method for preparing the same 有权二苯基化聚苯并咪唑类聚合物及其制备方法公开(公告)号：US09509008B2
公开(公告)日：2016-11-29
申请号：US14627945
申请日：2015-02-20
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyoung-Juhn Kim , Jin Young Kim , Sung Jong Yoo , Jong Hyun Jang , Eun Ae Cho , Sun-Hee Choi , Jonghee Han , Hyung Chul Ham , Dirk Henkensmeier
CPC classification number: H01M8/103 , C08G73/18 , C08J5/22 , C08J5/2256 , C08J2379/04 , H01M8/083 , H01M8/1072 , H01M2008/1095 , H01M2300/0082 , Y02E60/521 , Y02P70/56
Abstract: A polybenzimidazole based polymer in which substituted or non-substituted benzyl groups are introduced to the two nitrogen atoms of benzimidazole ring. The benzimidazole ring is not decomposed by the attack of hydroxide ions but shows excellent alkali resistance, and thus maintains high ion conductivity. The polybenzimidazole based polymers are particularly useful for not only solid alkali exchange membrane fuel cells (SAEMFC) but also various industrial fields in which polybenzimidazole based polymers are used.
Abstract translation: 将取代或未取代的苄基引入苯并咪唑环的两个氮原子的聚苯并咪唑基聚合物。 苯并咪唑环不被氢氧根离子的侵蚀分解，但耐碱性优异，因此保持高的离子传导性。 基于聚苯并咪唑的聚合物不仅可用于固体碱交换膜燃料电池（SAEMFC），还可用于其中使用聚苯并咪唑的聚合物的各种工业领域。
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8.发明授权Cardo copolybenzimidazoles, gas separation membranes and preparation method thereof 有权卡托共聚苯并咪唑，气体分离膜及其制备方法公开(公告)号：US09156008B2
公开(公告)日：2015-10-13
申请号：US13892548
申请日：2013-05-13
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyoung-Juhn Kim , Jun Young Han , Jong Hyun Jang , Eun Ae Cho , Jonghee Han , Suk Woo Nam , Tae-Hoon Lim , Sung Pil Yoon , Sung Jong Yoo , Dirk Henkensmeier
CPC classification number: B01D71/62 , B01D53/228 , B01D67/0002 , B01D67/0095 , B01D2256/12 , B01D2257/102 , C01B13/0251 , C08G73/18
Abstract: Provided are cardo copolybenzimidazoles, a gas separation membrane using the same and a method for preparing the same. More particularly, provided are cardo copolybenzimidazoles obtained by introducing cardo groups and aromatic ether groups to a polybenzimidazole backbone, a gas separation membrane having significantly improved oxygen permeability by using the same, and a method for preparing the same. The cardo copolybenzimidazoles have improved solubility as compared to the polybenzimidazole polymers according to the related art, show excellent mechanical properties while maintaining thermal stability so as to be formed into a film shape, and provide a gas separation membrane having significantly improved gas permeability, particularly, oxygen permeability.
Abstract translation: 提供的是共聚苯并咪唑类，其使用的气体分离膜及其制备方法。 更具体地说，提供了通过将聚苯并咪唑主链导体基团和芳族醚基团引入的共聚苯并咪唑，通过使用它们具有显着改善的氧渗透性的气体分离膜及其制备方法。 与根据现有技术的聚苯并咪唑聚合物相比，卡诺共聚苯并咪唑具有改善的溶解性，显示优异的机械性能，同时保持热稳定性以形成膜状，并提供具有显着改善的气体渗透性的气体分离膜， 透氧性。
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公开(公告)号：US11522200B2
公开(公告)日：2022-12-06
申请号：US16710336
申请日：2019-12-11
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sung Jong Yoo , Hee-Young Park , So Young Lee , Hyun Seo Park , Jin Young Kim , Jong Hyun Jang , Hyoung-Juhn Kim , Pil Kim , Yeonsun Sohn , Jiho Lee
Abstract: The present disclosure is a method for manufacturing a catalyst for a fuel cell using the blood of slaughtered livestock. The method for manufacturing a catalyst for a fuel cell using the blood of slaughtered livestock of the present disclosure allows preparation of a catalyst for a fuel cell exhibiting high redox reaction activity and very superior durability as compared to a commercially available platinum catalyst through a very simple process of purification of the blood of slaughtered livestock and hydrothermal synthesis. In addition, the method is very economical in that a catalyst is prepared using the pure blood of livestock only without an artificial additive, waste disposal cost can be reduced by recycling the blood of livestock and a high-performance catalyst capable of replacing the expensive platinum catalyst can be prepared.
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公开(公告)号：US11214497B2
公开(公告)日：2022-01-04
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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