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公开(公告)号：US10710877B2
公开(公告)日：2020-07-14
申请号：US15326118
申请日：2015-01-27
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Chang Won Yoon , Suk Woo Nam , Yeong Cheon Kim , Jonghee Han , Sung Pil Yoon , Hyoung-Juhn Kim , Taekhyun Oh , Tae Hoon Lim , Jin Young Kim , Sun-Hee Choi , Hyung Chul Ham
IPC: C01B3/22 , B01J8/00 , B01D53/26 , B01J23/44 , B01J27/24 , B01J35/00 , B01J37/08 , B01J37/18 , B01D5/00 , B01J27/26 , B01J8/20
Abstract: The present invention provides a hydrogen generating apparatus and a hydrogen generating method, wherein the hydrogen generating apparatus generates hydrogen by dehydrating formic acid, and comprises: a reactor for containing water and a heterogeneous catalyst; a formic acid feeder for feeding formic acid into the reactor; and a moisture remover for removing moisture generated from the reactor.
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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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公开(公告)号：US09954240B2
公开(公告)日：2018-04-24
申请号：US15132011
申请日：2016-04-18
Inventor： Dirk Henkensmeier , Jong Hyun Jang , Hyoung-Juhn Kim , Jin Young Kim , Sung Pil Yoon , Jonghee Han , Suk Woo Nam , Ngoc My Hanh Duong , Artur Michalak , Karol Dyduch , Mateusz Brela
IPC: H01M8/103 , H01M8/1004 , H01M8/12 , H01M8/1027 , C08G65/40 , C08G65/48 , C08G65/00 , H01M8/1018
CPC classification number: C08G65/40 , C08G65/007 , C08G65/4037 , C08G65/48 , H01M8/1004 , H01M8/1025 , H01M8/1027 , H01M8/103 , H01M8/12 , H01M2008/1095 , Y02P70/56
Abstract: Disclosed are a 5-(2,6-dioxyphenyl)tetrazole-containing polymer, a method for preparing the same, a membrane containing the same and an electrochemical device, particularly a high temperature polymer electrolyte membrane fuel cell, including the membrane. The membrane containing the 5-(2,6-dioxyphenyl)tetrazole-containing polymer is capable of providing high proton conductivity and exhibiting good mechanical properties, thereby capable of providing superior fuel cell performance. Accordingly, the membrane may be usefully used in an electrochemical device, particularly a fuel cell, more particularly a high temperature polymer electrolyte membrane fuel cell.
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公开(公告)号：US09806346B2
公开(公告)日：2017-10-31
申请号：US14791656
申请日：2015-07-06
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sung Pil Yoon , Hyoung-Juhn Kim , Chang Won Yoon , Seong Cheol Jang , Sun-Hee Choi , Jonghee Han , Hyung Chul Ham
CPC classification number: H01M4/9033 , C04B35/47 , C04B2235/327 , C04B2235/768 , C04B2235/9669 , H01M8/145 , H01M2008/147 , Y02E60/526 , Y02P70/56
Abstract: Disclosed is a homogeneous catalyst having a single phase of Perovskite oxide, wherein at least one doping element is substituted at site A, site B or sites A and B in ABO3 Perovskite type oxide so that the wettability with a liquid molten carbonate electrolyte may be decreased. The catalyst may have high catalytic activity, inhibit catalyst poisoning caused by creepage and evaporation of a liquid molten carbonate electrolyte, maintain high reaction activity for a long time, provide high methane conversion, and allow production of synthetic gas having a high proportion of hydrogen.
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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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公开(公告)号：US09431664B2
公开(公告)日：2016-08-30
申请号：US14043263
申请日：2013-10-01
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyung Chul Ham , Shin Ae Song , Seong Cheol Jang , Yong Min Kim , Jonghee Han , Hyoung-Juhn Kim , Tae Hoon Lim , Suk Woo Nam , Sung Pil Yoon , Chang Won Yoon , Yeong Cheon Kim
CPC classification number: H01M4/905 , B22F5/006 , B22F9/20 , B22F2999/00 , C22C1/0433 , H01M4/8621 , H01M4/8803 , B22F2201/20
Abstract: Provided is a method for preparing nickel-aluminum alloy powder at low temperature, which is simple and economical and is capable of solving the reactor corrosion problem. The method for preparing nickel-aluminum alloy powder at low temperature includes: preparing a powder mixture by mixing nickel powder and aluminum powder in a reactor and adding aluminum chloride into the reactor (S1); vacuumizing the inside of the reactor and sealing the reactor (S2); and preparing nickel-aluminum alloy powder by heat-treating the powder mixture in the sealed reactor at low temperature (S3).
Abstract translation: 提供一种在低温下制备镍 - 铝合金粉末的方法，其简单经济且能够解决反应器腐蚀问题。 在低温下制备镍 - 铝合金粉末的方法包括：通过将镍粉和铝粉混合在反应器中并向反应器中加入氯化铝来制备粉末混合物（S1）; 抽真空反应器内部并密封反应器（S2）; 并通过在密封反应器中在低温下热处理粉末混合物来制备镍 - 铝合金粉末（S3）。
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18.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：US11936052B2
公开(公告)日：2024-03-19
申请号：US16850750
申请日：2020-04-16
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jin Young Kim , Jong Min Kim , Hee-Young Park , So Young Lee , Hyun Seo Park , Sung Jong Yoo , Jong Hyun Jang , Hyoung-Juhn Kim , Chang Won Yoon , Jonghee Han
CPC classification number: H01M4/925 , C01G19/02 , D01F9/08 , H01M4/8673 , C01P2002/54 , C01P2004/13 , D01D5/0007
Abstract: Provided is a fluorine-doped tin oxide support, a platinum catalyst for a fuel cell having the same, and a method for producing the same. Also described is a high electrical conductivity and electrochemical durability by doping fluorine to the tin oxide-based support through an electrospinning process. Thus, while resolving a degradation issue of the carbon support in the conventional commercially available platinum/carbon (Pt/C) catalyst, what is designed is to minimize an electrochemical elution of dopant or tin, which is a limitation of the tin oxide support itself and has excellent performance as a catalyst for a fuel cell.
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公开(公告)号：US11799093B2
公开(公告)日：2023-10-24
申请号：US17677723
申请日：2022-02-22
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun Jang , Hyun Seo Park , Hee-Young Park , Katie Heeyum Lim , Oh Sub Kim , Hyoung-Juhn Kim , Jin Young Kim , Sung Jong Yoo , Dirk Henkensmeir , So Young Lee
CPC classification number: H01M4/926 , H01M4/8652 , H01M4/8828 , H01M4/8892 , H01M4/9016
Abstract: Disclosed are a catalyst electrode for a fuel cell, a method for fabricating the catalyst electrode, and a fuel cell including the catalyst electrode. The presence of an ionomer-ionomer support composite in the catalyst electrode prevents the porous structure of the catalyst electrode from collapsing due to oxidation of a carbon support to avoid an increase in resistance to gas diffusion and can stably secure proton channels. The presence of carbon materials with high conductivity is effective in preventing the electrical conductivity of the electrode from deterioration resulting from the use of a metal oxide in the ionomer-ionomer support composite and is also effective in suppressing collapse of the porous structure of the electrode to prevent an increase in resistance to gas diffusion in the electrode. Based on these effects, the fuel cell exhibits excellent performance characteristics and prevents its performance from deteriorating during continuous operation.
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