公开(公告)号：US20150196897A1

公开(公告)日：2015-07-16

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

IPC: B01J23/52

CPC classification number: H01M4/926 ,  H01M4/921

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.

Abstract translation: 本公开内容涉及在一氧化碳（CO）存在下热处理的PtAu纳米颗粒催化剂及其制备方法。 由于在CO气氛下热处理的PtxAuy纳米粒子催化剂具有高的Pt表面积和优异的氧还原反应（ORR）活性，所以可以通过将催化剂应用于燃料电池来实现高效率，高质量的燃料电池。

公开(公告)号：US20130209286A1

公开(公告)日：2013-08-15

申请号：US13657457

申请日：2012-10-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun JANG ,  Soo Jin KIM ,  Hyoung-Juhn KIM ,  Eun Ae CHO ,  Dirk HENKENSMEIER ,  Suk Woo NAM ,  Tae-Hoon LIM ,  Jonghee HAN ,  Sung Pil YOON

IPC: F04D13/02 ,  H01M8/02

CPC classification number: C01B3/50 ,  C01B2203/0475 ,  C01B2203/066 ,  H01M8/0681

Abstract: Disclosed is a hydrogen pump system operable without external electric power supply. The hydrogen pump system is capable of separating or purifying hydrogen without an external electric power supply.

Abstract translation: 公开了一种在没有外部电源的情况下可操作的氢泵系统。 氢泵系统能够在没有外部电源的情况下分离或净化氢气。

公开(公告)号：US20230006216A1

公开(公告)日：2023-01-05

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 ,  H01M8/1018 ,  H01M4/90 ,  H01M4/92

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.

公开(公告)号：US20220181646A1

公开(公告)日：2022-06-09

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

IPC: H01M4/92 ,  H01M4/86 ,  H01M4/88 ,  H01M4/90

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.

公开(公告)号：US20210332486A1

公开(公告)日：2021-10-28

申请号：US17038331

申请日：2020-09-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young LEE ,  Hyoung-Juhn KIM ,  Sae Yane BAEK ,  Taekyung LEE ,  Sung Jong YOO ,  Jong Hyun JANG ,  Hee-Young PARK ,  Jin Young KIM ,  Hyun S. PARK

IPC: C25B9/10 ,  C25B1/10 ,  C25B13/02 ,  C25B13/08 ,  C25B11/04 ,  B01D67/00 ,  B01D71/06

Abstract: The present disclosure discloses an asymmetric electrolyte membrane, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same. More particularly, it discloses an asymmetric electrolyte membrane having a porous layer and a dense layer at the same time, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same.

公开(公告)号：US20210119237A1

公开(公告)日：2021-04-22

申请号：US16859712

申请日：2020-04-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： So Young LEE ,  Seung Ju LEE ,  Min Jae LEE ,  Hyun Seo PARK ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Suk Woo NAM ,  Young Suk JO ,  Yeong Cheon KIM

IPC: H01M8/1051 ,  H01M8/103 ,  H01M8/1072

Abstract: The present disclosure relates to a polymer electrolyte membrane for medium and high temperature, a preparation method thereof and a high-temperature polymer electrolyte membrane fuel cell including the same, more particularly to a technology of preparing a composite membrane including an inorganic phosphate nanofiber incorporated into a phosphoric acid-doped polybenzimidazole (PBI) polymer membrane by adding an inorganic precursor capable of forming a nanofiber in a phosphoric acid solution when preparing phosphoric acid-doped polybenzimidazole and using the same as a high-temperature polymer electrolyte membrane which is thermally stable even at high temperatures of 200-300° C. without degradation of phosphoric acid and has high ion conductivity.

公开(公告)号：US20210066741A1

公开(公告)日：2021-03-04

申请号：US16814619

申请日：2020-03-10

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun Seo PARK ,  Ahyoun LIM ,  Ju Sung LEE ,  Hee-Young PARK ,  So Young LEE ,  Jin Young KIM ,  Sung Jong YOO ,  Dirk HENKENSMEIER ,  Jong Hyun JANG ,  Hyoung-Juhn KIM

IPC: H01M8/18 ,  H01M8/1004 ,  H01M8/1231 ,  H01M4/90 ,  H01M4/92 ,  H01M4/86

Abstract: Disclosed is a high temperature-type unitized regenerative fuel cell using water vapor, which exhibits high hydrogen (H2) production efficiency and superior power generation ability.

公开(公告)号：US20180138534A1

公开(公告)日：2018-05-17

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: H01M8/1018 ,  H01M8/00 ,  H01M8/0276

CPC classification number: H01M8/1018 ,  H01M8/006 ,  H01M8/0258 ,  H01M8/0271 ,  H01M8/0276 ,  H01M8/1009 ,  H01M2008/1095

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.

公开(公告)号：US20160222488A1

公开(公告)日：2016-08-04

申请号：US14918486

申请日：2015-10-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Jong YOO ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Namgee JUNG ,  Suk Woo NAM ,  Jonghee HAN ,  Sung Pil YOON ,  Jaeyune RYU ,  Tae Hoon LIM ,  Jin Young KIM

IPC: C22C5/04

CPC classification number: C22C5/04

Abstract: Provided is a catalyst for oxygen reduction reaction comprising an alloy comprising at least one selected from Pt, Pd and Ir supported on a carbon carrier functionalized with poly(N-isopropylacrylamide) (PNIPAM). The catalyst for oxygen reduction reaction has electronic ensemble effects by virtue of the carbon carrier functionalized with poly(N-isopropylacrylamide) (PNIPAM), and thus shows improved oxygen reduction activity and durability as compared to conventional catalysts supported on carbon.

Abstract translation: 提供了一种氧还原反应的催化剂，其包含合金，其包含负载在用聚（N-异丙基丙烯酰胺）（PNIPAM）官能化的碳载体上的Pt，Pd和Ir中的至少一种。 用于氧还原反应的催化剂由于通过聚（N-异丙基丙烯酰胺）（PNIPAM）官能化的碳载体而具有电子集合效应，因此与负载在碳上的常规催化剂相比显示出改善的氧还原活性和耐久性。

公开(公告)号：US20160036065A1

公开(公告)日：2016-02-04

申请号：US14812289

申请日：2015-07-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seung Jun HWANG ,  Soo-Kil KIM ,  Sung Jong YOO ,  Jong Hyun JANG ,  Eun Ae CHO ,  Hyoung-Juhn KIM ,  Suk-Woo NAM ,  Tae Hoon LIM

IPC: H01M4/90

CPC classification number: H01M4/9041 ,  B82Y30/00 ,  B82Y40/00 ,  H01M4/921 ,  H01M4/926

Abstract: Disclosed is a method for producing a core-shell structured electrocatalyst for a fuel cell. The method includes uniformly supporting nano-sized core particles on a support to obtain a core support, and selectively forming a shell layer only on the surface of the core particles of the core support. According to the method, the core and the shell layer can be formed without the need for a post-treatment process, such as chemical treatment and heat treatment. Further disclosed is a core-shell structured electrocatalyst for a fuel cell produced by the method. The core-shell structured electrocatalyst has a large amount of supported catalyst and exhibits superior catalytic activity and excellent electrochemical properties. Further disclosed is a fuel cell including the core-shell structured electrocatalyst.