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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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公开(公告)号：US11056693B2
公开(公告)日：2021-07-06
申请号：US15879237
申请日：2018-01-24
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun Jang , Hee-Young Park , Hyoung-Juhn Kim , Dirk Henkensmeier , Sung Jong Yoo , Jin Young Kim , So Young Lee , Hyun Seo Park
Abstract: An aryne-grafted carbon-supported catalyst and a method of preparing the same, and particularly to a carbon-supported catalyst having an organic anchor formed on the surface of a carbon support through aryne cycloaddition in order to improve the durability of a fuel cell catalyst, and a method of preparing the same. It is possible to form a covalent bonding selectively to a carbon support of a fuel cell catalyst in a solution by using 2-(trimethylsilyl)phenyl triflate or the like. In addition, the formed anchor prevents adhesion of metal catalyst particles of a fuel cell, and thus improves the durability of a fuel cell catalyst.
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公开(公告)号：US10458943B2
公开(公告)日：2019-10-29
申请号：US15861998
申请日：2018-01-04
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： So Young Lee , Hyoung-Juhn Kim , Young Seung Na , Jin Young Kim , Sung Jong Yoo , Jong Hyun Jang , Jonghee Han , Suk Woo Nam
IPC: G01N27/62 , G01K13/00 , G01R27/26 , H01M8/0247 , H01M8/0258 , H01M8/1067
Abstract: An ionic conductivity measurement device of an electrolytic membrane includes a humidification chamber configured to accommodate an ion-conductive electrolytic membrane and having concave grooves respectively formed at both sides thereof which face the electrolytic membrane to form a measurement space for measuring ionic conductivity of the electrolytic membrane; a plurality of channels formed at a bottom surface of each of the concave grooves; a gas distribution unit detachably coupled to each of the concave grooves with the electrolytic membrane being interposed therebetween; and a plurality of electrodes provided in contact with one side of the electrolytic membrane and supported by the gas distribution unit, the plurality of electrodes being disposed side by side to measure an impedance of the electrolytic membrane.
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公开(公告)号：US10435802B2
公开(公告)日：2019-10-08
申请号：US15910270
申请日：2018-03-02
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sung Jong Yoo , Injoon Jang , So Young Lee , Jin Young Kim , Jong Hyun Jang , Hyoung-Juhn Kim , Jonghee Han , Hyun Seo Park
IPC: B01J35/00 , B01J23/28 , B01J23/72 , B01J23/74 , B01J23/881 , B01J23/882 , B01J23/883 , B01J23/885 , B01J37/08 , B01J37/34 , C25B11/04 , C25B1/04
Abstract: Provided are a cathode catalyst for water electrolysis devices and a method for preparing the same. More specifically, provided are a cathode catalyst for water electrolysis devices that exhibits both high activity and high electrical conductivity, compared to conventional transition metal phosphide catalysts, and a method for preparing the same.
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Patent Agency Ranking
公开(公告)号：US09799904B2
公开(公告)日：2017-10-24
申请号：US14016687
申请日：2013-09-03
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun Jang , Hee-young Park , Hyoung-Juhn Kim , Dirk Henkensmeier , Sung Pil Yoon , Suk Woo Nam , Hyung Chul Ham , Tae-Hoon Lim , Jonghee Han , Sung Jong Yoo , Eun Ae Cho
IPC: H01M8/10 , H01M8/1004 , H01M4/92
CPC classification number: H01M8/1004 , H01M4/921 , H01M4/923 , H01M4/926 , Y02P70/56
Abstract: A polymer electrolyte membrane fuel cell is provided. The polymer electrolyte membrane fuel cell includes a phosphoric acid-doped polyimidazole electrolyte membrane and a complex catalyst. In the complex catalyst, an alloy or mixture of a metal and a chalcogen element is supported on a carbon carrier. The polymer electrolyte membrane fuel cell exhibits further improved long-term operation, power generation efficiency, and operational stability at high temperature. The complex catalyst can be produced by a simple method.
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7.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：US11608276B2
公开(公告)日：2023-03-21
申请号：US17036726
申请日：2020-09-29
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Dong Won Chun , Sung Jong Yoo , Jaeyoung Hong , Hee-Young Park , Young-Su Lee , Jin-Yoo Suh , Jee-Hwan Bae , Min Kyung Cho
Abstract: According to an embodiment of the present invention, the method includes: (a) preparing a liquid cell containing a palladium precursor solution; (b) applying electron beams to the palladium precursor solution contained in the liquid cell; and (c) generating palladium hydride nanoparticles having the hcp crystal structure in the palladium precursor solution.
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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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