公开(公告)号：US20200061584A1

公开(公告)日：2020-02-27

申请号：US16268913

申请日：2019-02-06

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS

Inventor： Sung Jong YOO ,  Sehyun LEE ,  Hee-Young PARK ,  Jong Hyun JANG ,  Jin Young KIM ,  Hyoung-Juhn KIM ,  Jea-woo JUNG

IPC: B01J23/42 ,  B01J37/16

Abstract: Disclosed is a method for preparing a carbon-supported platinum-transition metal alloy nanoparticle catalyst using a stabilizer. According to the method, the transition metal on the nanoparticle surface and the stabilizer are simultaneously removed by treatment with acetic acid. Therefore, the method enables the preparation of a carbon-supported platinum-transition metal alloy nanoparticle catalyst in a simple and environmentally friendly manner compared to conventional methods. The carbon-supported platinum-transition metal alloy nanoparticle catalyst can be applied as a high-performance, highly durable fuel cell catalyst.

公开(公告)号：US20190134620A1

公开(公告)日：2019-05-09

申请号：US16177203

申请日：2018-10-31

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS

Inventor： Sung Jong YOO ,  Injoon JANG ,  So Young LEE ,  Hyun Seo PARK ,  Jin Young KIM ,  Jong Hyun JANG ,  Hyoung-Juhn KIM

IPC: B01J37/34 ,  B01J35/00 ,  B01J23/75 ,  B01J23/89

Abstract: Disclosed is a method for preparing a carbon-supported metal oxide and/or alloy nanoparticle catalyst. According to the method, a carbon-supported metal oxide and/or alloy nanoparticle catalyst is prepared by depositing metal oxide and/or alloy nanoparticles on a water-soluble support and dissolving the metal oxide and/or alloy nanoparticles deposited on the water-soluble support in an anhydrous polar solvent containing carbon dispersed therein to support the metal oxide and/or alloy nanoparticles on the carbon. The anhydrous polar solvent has much lower solubility for the water-soluble support than water and is used to dissolve the water-soluble support. The use of the anhydrous polar solvent instead of water can prevent the water-soluble support present at a low concentration in the solution from impeding the support of the nanoparticles on the carbon, thus providing a solution to the problems of environmental pollution, high cost, and complexity encountered in conventional chemical and physical synthetic methods.

公开(公告)号：US20190067721A1

公开(公告)日：2019-02-28

申请号：US15869031

申请日：2018-01-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn KIM ,  Jieon CHAE ,  So Young LEE ,  Suk Woo NAM ,  Jong Hyun JANG ,  Sung Jong YOO ,  Jin Young KIM ,  Hyun Seo PARK

IPC: H01M8/1004 ,  H01M8/1041 ,  H01M8/0239 ,  C08L101/06 ,  C08L81/06

Abstract: Disclosed is an alcohol mixture typed hydrocarbon based electrode binder for a polymer electrolyte membrane fuel cell. The binder may be directly applied to a hydrocarbon based electrolyte membrane of the same kind, and may exhibit a superior fuel cell performance over conventional hydrocarbon polymer binders using an organic solvent.

公开(公告)号：US20180241061A1

公开(公告)日：2018-08-23

申请号：US15885814

申请日：2018-02-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin Young KIM ,  Kyung-jin LEE ,  Kyungah LEE ,  Nayoung KIM ,  So Young LEE ,  Sung Jong YOO ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Jonghee HAN ,  Suk Woo NAM ,  Tae Hoon LIM

IPC: H01M8/1081 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1053 ,  H01M8/106 ,  H01M8/1067

CPC classification number: H01M8/1081 ,  B01D67/0088 ,  B01D69/02 ,  B01D69/10 ,  B01D71/36 ,  B01D2325/04 ,  B01D2325/14 ,  B01J35/0033 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1053 ,  H01M8/106 ,  H01M8/1067 ,  H01M2008/1095 ,  H01M2300/0082 ,  H01M2300/0094 ,  Y02P70/56

Abstract: A composite polymer electrolyte membrane for a fuel cell may be manufactured by the following method: partially or totally filling the inside of a pore of a porous support with a hydrogen ion conductive polymer electrolyte solution by performing a solution impregnation process; and drying the hydrogen ion conductive polymer electrolyte solution while completely filling the inside of the pore with the hydrogen ion conductive polymer electrolyte solution by performing a spin dry process on the porous support of which the inside of the pore is partially or totally filled with the hydrogen ion conductive polymer electrolyte solution.

公开(公告)号：US20170056858A1

公开(公告)日：2017-03-02

申请号：US15227001

申请日：2016-08-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jongsoo JURNG ,  Min Su KIM ,  Eun Seuk PARK ,  Hyoun Duk JUNG ,  Jin Young KIM

IPC: B01J23/28 ,  B01J37/02 ,  B01D53/86 ,  B01J35/04

CPC classification number: B01D53/8675 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/2073 ,  B01D2257/106 ,  B01D2258/06 ,  B01J21/18 ,  B01J23/22 ,  B01J23/34 ,  B01J35/04 ,  B01J35/1019 ,  B01J37/0045 ,  B01J37/0215 ,  B01J37/0219 ,  B01J37/0232 ,  B01J37/0236

Abstract: Disclosed is a catalyst filter, which includes a catalyst support and a nano metallic catalyst sprayed to a surface of the catalyst support. The catalyst filter uses catalyst slurry prepared by using a particulate catalyst, in which a small amount of nano metallic catalyst exhibiting a catalyst performance is sprayed to a surface of the catalyst support, different from an existing patent technique in which catalyst particles are formed and prepared as a support to consume a large amount of catalyst. Therefore, the specific surface area of the catalyst filter is not smaller than the specific surface area of the nano catalyst particles, and thus the catalyst filter may effectively remove and decompose ultra-low concentration gas-state contaminants in an indoor air.

Abstract translation: 公开了一种催化剂过滤器，其包括喷射到催化剂载体表面的催化剂载体和纳米金属催化剂。 催化剂过滤器使用与使用催化剂载体的表面喷出少量催化剂性能的少量纳米金属催化剂的颗粒催化剂制备的催化剂浆料，不同于其中形成和制备催化剂颗粒的现有专利技术 作为消耗大量催化剂的支持。 因此，催化剂过滤器的比表面积不小于纳米催化剂颗粒的比表面积，因此催化剂过滤器可以有效地去除和分解室内空气中的超低浓度气态污染物。

公开(公告)号：US20150371787A1

公开(公告)日：2015-12-24

申请号：US14511656

申请日：2014-10-10

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Min Jae KO ,  Bong Soo KIM ,  Jin Young KIM ,  Hong Gon KIM ,  Hae Jung SON ,  Doh-Kwon LEE ,  Jin Ah LEE ,  Hee Suk JUNG ,  Hwa Young JIN

IPC: H01G9/20 ,  H01G9/00 ,  H01G9/042 ,  H01L51/00

CPC classification number: H01G9/2059 ,  H01G9/2031 ,  H01L51/0086 ,  Y02E10/542 ,  Y02E10/549

Abstract: Disclosed is a method for adsorbing a dye for a dye-sensitized solar cell. The method includes: coating a paste including metal oxide nanoparticles on the upper surface of a titanium oxide thin film and calcining the coated paste to form a porous film; adding an additive to a sensitizing dye solution to promote the adsorption of the dye; and dipping the porous film in the sensitizing dye solution to adsorb the sensitizing dye onto the surface of the porous film. The sensitizing dye solution is a dispersion of the sensitizing dye in an organic solvent. Also disclosed are a working electrode prepared using the sensitizing dye solution and a dye-sensitized solar cell including the working electrode. The addition of the additive shortens the time of dye adsorption. Despite the shortened adsorption time, the dye does not undergo desorption in the long term as well as in the short term, ensuring long-term stability of the solar cell.

Abstract translation: 公开了一种吸附染料敏化太阳能电池用染料的方法。 该方法包括：在氧化钛薄膜的上表面上涂覆包含金属氧化物纳米颗粒的糊料，并煅烧涂覆的糊料以形成多孔膜; 向敏化染料溶液中加入添加剂以促进染料的吸附; 并将多孔膜浸渍在敏化染料溶液中以将敏化染料吸附到多孔膜的表面上。 敏化染料溶液是敏化染料在有机溶剂中的分散体。 还公开了使用敏化染料溶液和包含工作电极的染料敏化太阳能电池制备的工作电极。 添加添加剂可缩短染料吸附时间。 尽管吸附时间缩短，但染料长期以及短期内都不会脱附，确保太阳能电池的长期稳定性。

公开(公告)号：US20130269781A1

公开(公告)日：2013-10-17

申请号：US13739053

申请日：2013-01-11

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Min Jae KO ,  Doh-Kwon LEE ,  Hong Gon KIM ,  Jin Young KIM ,  Ki Cheon YOO ,  Se Jeong PARK ,  Bong Soo KIM

IPC: H01G9/20

CPC classification number: H01G9/2018 ,  H01G9/2013 ,  H01G9/2031 ,  H01G9/2059 ,  Y02E10/542

Abstract: Disclosed is a polymer gel electrolyte composition. The composition includes an aqueous solution of a polysaccharide-based polymer and a liquid electrolyte in which a redox derivative is mixed with an organic solvent. The composition is easy to inject. The composition is free from problems of leakage and volatilization, thus being environmentally friendly. Further disclosed is a highly efficient dye-sensitized solar cell using the composition. The dye-sensitized solar cell is stable for a long period of time and can be readily commercialized.

Abstract translation: 公开了一种聚合物凝胶电解质组合物。 组合物包括多糖类聚合物的水溶液和其中氧化还原衍生物与有机溶剂混合的液体电解质。 组合物易于注射。 该组合物没有泄漏和挥发的问题，因此是环保的。 进一步公开了使用该组合物的高效染料敏化太阳能电池。 染料敏化太阳能电池长期稳定，易于商业化。

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.