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公开(公告)号：US12202726B2
公开(公告)日：2025-01-21
申请号：US18387793
申请日：2023-11-07
Inventor： Pyung Soon Kim , Jin Woo Choung , Jihui Seo , Suk Woo Nam , Young Suk Jo , Hyangsoo Jeong , Jaewon Kirk , Chang Won Yoon , Yongmin Kim
IPC: C01B3/06 , B01J19/00 , H01M8/04082 , H01M8/065
Abstract: An operating method is disclosed for a dehydrogenation reaction system. The method includes providing a system having: an acid aqueous solution tank including an acid aqueous solution; a dehydrogenation reactor including a chemical hydride of a solid state and receiving an acid aqueous solution from the acid aqueous solution tank to react the chemical hydride with the acid aqueous solution to generate hydrogen; and a fuel cell stack receiving hydrogen generated from the dehydrogenation reactor to be reacted with oxygen to generate water and simultaneously to generate electrical energy. The method also includes recycling the water generated from the fuel cell stack to one or all of the acid aqueous solution tank, the dehydrogenation reactor, and a separate water tank. The acid is formic acid and, in in the dehydrogenation reactor, the temperature is in a range of 10° C. to 400° C. and the pressure is in a range of 1 bar to 100 bar.
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公开(公告)号：US20240076182A1
公开(公告)日：2024-03-07
申请号：US18387793
申请日：2023-11-07
Inventor： Pyung Soon Kim , Jin Woo Choung , Jihui Seo , Suk Woo Nam , Young Suk Jo , Hyangsoo Jeong , Jaewon Kirk , Chang Won Yoon , Yongmin Kim
IPC: C01B3/06 , B01J19/00 , H01M8/04082 , H01M8/065
CPC classification number: C01B3/065 , B01J19/0013 , H01M8/04216 , H01M8/065 , B01J2219/00051 , B01J2219/00162 , C01B2203/085 , C01B2203/0872
Abstract: An operating method is disclosed for a dehydrogenation reaction system. The method includes providing a system having: an acid aqueous solution tank including an acid aqueous solution; a dehydrogenation reactor including a chemical hydride of a solid state and receiving an acid aqueous solution from the acid aqueous solution tank to react the chemical hydride with the acid aqueous solution to generate hydrogen; and a fuel cell stack receiving hydrogen generated from the dehydrogenation reactor to be reacted with oxygen to generate water and simultaneously to generate electrical energy. The method also includes recycling the water generated from the fuel cell stack to one or all of the acid aqueous solution tank, the dehydrogenation reactor, and a separate water tank. The acid is formic acid and, in in the dehydrogenation reactor, the temperature is in a range of 10° C. to 400° C. and the pressure is in a range of 1 bar to 100 bar.
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公开(公告)号：US20230294057A1
公开(公告)日：2023-09-21
申请号：US17972698
申请日：2022-10-25
Inventor： Pyung Soon Kim , Jin Woo Choung , Yongwoo Kim , Jihui Seo , Jaeyong Lee , Yongmin Kim , Suk Woo Nam , Hyuntae Sohn , Hyangsoo Jeong , Dong Gyun Kang , Arash Badakhsh , Donghyun Song
CPC classification number: B01J19/0013 , B01J16/005 , B01J19/243 , C01B3/0015 , B01D53/002 , B01J2219/00099 , B01J2219/00135 , B01J2219/00157
Abstract: A dehydrogenation reaction apparatus and a system including the same are disclosed. The dehydrogenation reaction apparatus includes: a main housing; and a dehydrogenation reactor which is provided inside of the main housing and has a catalyst provided inside. In particular, the dehydrogenation reactor generates hydrogen from a liquid organic hydrogen carrier (LOHC). The dehydrogenation reaction apparatus further includes: a heating device provided inside of the main housing and configured to apply heat to the dehydrogenation reactor through a phase change material, where the phase change material is provided between the main housing, and the dehydrogenation reactor and the heating device.
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公开(公告)号：US11594744B2
公开(公告)日：2023-02-28
申请号：US17348578
申请日：2021-06-15
Inventor： Jihui Seo , Jin Woo Choung , Pyung Soon Kim , Suk Woo Nam , Hyangsoo Jeong , Yongmin Kim , Jaewon Kirk , Chang Won Yoon
IPC: H01M8/0612 , B01J19/24 , H01M8/065 , C01B3/00 , C01B3/06
Abstract: A hybrid dehydrogenation reaction system includes: an acid aqueous solution tank having an acid aqueous solution; an exothermic dehydrogenation reactor including a chemical hydride of a solid state and receiving the acid aqueous solution from the acid aqueous solution tank for an exothermic dehydrogenation reaction of the chemical hydride and the acid aqueous solution to generate hydrogen; an LOHC tank including a liquid organic hydrogen carrier (LOHC); and an endothermic dehydrogenation reactor receiving the liquid organic hydrogen carrier from the LOHC tank and generating hydrogen through an endothermic dehydrogenation reaction of the liquid organic hydrogen carrier by using heat generated from the exothermic dehydrogenation reactor.
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公开(公告)号：US10601052B2
公开(公告)日：2020-03-24
申请号：US15360034
申请日：2016-11-23
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun Jang , Byungseok Lee , Hee-Young Park , Hyoung-Juhn Kim , Dirk Henkensmeier , Sung Jong Yoo , Jin Young Kim , So Young Lee , Jaeyune Ryu , Sung Pil Yoon , Jonghee Han , Suk Woo Nam
Abstract: Disclosed are a reversible fuel cell oxygen electrode in which IrO2 is electrodeposited and formed on a porous carbon material and platinum is applied thereon to form a porous platinum layer, a reversible fuel cell including the same, and a method for preparing the same. According to the corresponding reversible fuel cell oxygen electrode, as the loading amounts of IrO2 and platinum used in the reversible fuel cell oxygen electrode can be lowered, it is possible to exhibit excellent reversible fuel cell performances (excellent fuel cell performance and water electrolysis performance) by improving the mass transport of water and oxygen while being capable of reducing the loading amounts of IrO2 and platinum. Further, it is possible to exhibit a good activity of a catalyst when the present disclosure is applied to a reversible fuel cell oxygen electrode and to reduce corrosion of carbon.
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Patent Agency Ranking
公开(公告)号：US20200086302A1
公开(公告)日：2020-03-19
申请号：US16216287
申请日：2018-12-11
Applicant: Korea Institute of Science and Technology
Inventor： Hyun Seo Park , Kahyun Hur , Min-Soek Kim , Jimin Kong , Jong Hyun Jang , Chang Won Yoon , Hyung Chul Ham , Suk Woo Nam , Jonghee Han , Ara Jo
Abstract: The present disclosure relates to a catalyst for electrochemical ammonia synthesis and a method for producing the same. The catalyst has an ammonia synthesis activity up to several times to several tens of times of the activity of the existing single metal or metal oxide catalysts. Thus, when using the catalyst, it is possible to provide a method for electrochemical ammonia synthesis having an improved ammonia production yield and rate.
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公开(公告)号：US10435296B2
公开(公告)日：2019-10-08
申请号：US15713698
申请日：2017-09-25
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Chang Won Yoon , Dajung Han , Yeong Cheon Kim , Hyun Seo Park , Hyung Chul Ham , Sung Pil Yoon , Jonghee Han , Tae Hoon Lim , Suk Woo Nam
IPC: C01B3/00 , C01B3/54 , C07C15/16 , B01J23/44 , B01J23/46 , C07C15/14 , C07C5/42 , B01J35/00 , B01J21/04 , B01J27/26 , C01B3/22
Abstract: Provided is a liquid hydrogen storage material including 1,1′-biphenyl and 1,1′-methylenedibenzene, the liquid hydrogen storage material including the corresponding 1,1′-biphenyl and 1,1′-methylenedibenzene at a weight ratio of 1:1 to 1:2.5. The corresponding liquid hydrogen storage material has excellent hydrogen storage capacity value by including materials having high hydrogen storage capacity, and is supplied in a liquid state, and as a result, it is possible to minimize initial investment costs and the like required when the corresponding liquid hydrogen storage material is used as a hydrogen storage material in a variety of industries.
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公开(公告)号：US20180202970A1
公开(公告)日：2018-07-19
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
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：US09993806B2
公开(公告)日：2018-06-12
申请号：US15708132
申请日：2017-09-19
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Chang Won Yoon , Yeong Cheon Kim , Hyun Seo Park , Hyung Chul Ham , Sung Pil Yoon , Jonghee Han , Suk Woo Nam , Seong Cheol Jang
IPC: B01J21/18 , B01J23/44 , B01J23/755 , B01J23/89 , B01J27/24 , B01J35/00 , B01J37/02 , B01J37/08 , C01B3/22
CPC classification number: B01J23/892 , B01J27/24 , B01J35/0006 , B01J35/0013 , B01J37/0215 , B01J37/084 , B01J37/088 , C01B3/22 , C01B2203/0277 , C01B2203/1064 , C01B2203/1082
Abstract: Provided is a method for preparing a catalyst for a dehydrogenation reaction of formic acid, the method including: preparing a nitrogen-doped carbon support; forming a mixed solution including a first aqueous metal precursor solution which includes palladium (Pd) and a second aqueous metal precursor solution which includes nickel (Ni); and forming a catalyst for a dehydrogenation reaction of formic acid by stirring the nitrogen-doped carbon support with the mixed solution, and then immobilizing alloy particles of Pd and Ni on the nitrogen-doped carbon support.
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40.发明授权公开(公告)号：US09793552B2
公开(公告)日：2017-10-17
申请号：US14193083
申请日：2014-02-28
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun Jang , Yung-Eun Sung , Hee-young Park , Hyoung-Juhn Kim , Dirk Henkensmeier , Suk Woo Nam , Hyung Chul Ham , Tae-Hoon Lim , Sung Jong Yoo , Eun Ae Cho , Kug-Seung Lee
Abstract: The present disclosure relates to a PtAu nanoparticle catalyst heat-treated in the presence of carbon monoxide (CO) and a method for preparing same. Since the PtxAuy nanoparticle catalyst heat-treated under CO atmosphere has high Pt surface area and superior oxygen reduction reaction (ORR) activity, a high-efficiency, high-quality fuel cell can be achieved by applying the catalyst to a fuel cell.
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