公开(公告)号：US20190341624A1

公开(公告)日：2019-11-07

申请号：US16268856

申请日：2019-02-06

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

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

IPC: H01M4/92

Abstract: The present disclosure relates to a method for preparing a carbon-supported platinum-transition metal alloy nanoparticle catalyst. More particularly, the present disclosure provides a method for preparing a carbon-supported platinum-transition metal alloy nanoparticle catalyst using a stabilizer, the method including the steps of: (a) mixing a platinum precursor, a transition metal precursor, carbon, stabilizer and a reducing agent solution, and carrying out washing and drying to obtain carbon-supported platinum-transition metal alloy nanoparticles; (b) mixing the carbon-supported platinum-transition metal alloy nanoparticles with an acetic acid solution, and carrying out washing and drying to obtain acetic acid-treated nanoparticles; and (c) heat treating the acetic acid-treated nanoparticles. Thus, it is possible to obtain a carbon-supported platinum-transition metal alloy nanoparticle catalyst through a more simple and eco-friendly process as compared to the related art, and to apply the catalyst to a high-performance and high-durability fuel cell catalyst.

公开(公告)号：US20170051419A1

公开(公告)日：2017-02-23

申请号：US15241798

申请日：2016-08-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun JANG ,  Soo-Kil KIM ,  Sang Hyun AHN ,  Hyoung-Juhn KIM ,  Jin Young KIM ,  Sung Jong YOO ,  Dirk HENKENSMEIER ,  Jonghee HAN ,  Jaeyune RYU

IPC: C25B11/04 ,  C25D3/50 ,  C25D3/12 ,  C25B1/10 ,  C25B9/10

CPC classification number: C25B11/0478 ,  C23C18/54 ,  C25B1/10 ,  C25B9/10 ,  C25B11/0405 ,  C25B11/0415 ,  C25D3/12 ,  C25D5/54 ,  Y02E60/366

Abstract: Provided is an electrocatalyst for anion exchange membrane water electrolysis, including a carbonaceous material, and nickel electrodeposited on the carbonaceous material, wherein nickel is partially substituted with platinum and the substitution with platinum provides increased hydrogen evolution activity as compared to the same electrocatalyst before substitution with platinum. Also provided are a method for preparing the electrocatalyst and an anion exchange membrane water electrolyzer using the same. The nickel electrocatalyst coated with an ultralow loading amount of platinum for anion exchange membrane water electrolysis shows excellent hydrogen evolution activity and has a small thickness of catalyst, thereby providing high mass transfer and high catalyst availability. In addition, the electrocatalyst uses a particle-type electrode to facilitate emission of hydrogen bubbles generated during hydrogen evolution reaction and oxygen bubbles generated during oxygen evolution reaction, and requires low cost for preparation to provide high cost-efficiency.

Abstract translation: 本发明提供了一种阴离子交换膜水电解用电解质，包括碳质材料和电沉积在碳质材料上的镍，其中镍部分被铂取代，与铂取代相比，与铂取代相同的电催化剂相比，提供的析氢活性提高， 铂。 还提供了制备电极催化剂的方法和使用其的阴离子交换膜水电解槽。 涂覆有超低负载量的铂用于阴离子交换膜水电解的镍电催化剂显示出优异的析氢活性并具有小的催化剂厚度，从而提供高的传质和高的催化剂可用性。 此外，电极催化剂使用粒子型电极来促进放氢反应期间产生的氢气泡的发射和在析氧反应期间产生的氧气泡，并且需要低成本的制备以提供高成本效率。

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：US20190161868A1

公开(公告)日：2019-05-30

申请号：US16198286

申请日：2018-11-21

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun JANG ,  Seunghoe CHOE ,  Youngseung NA ,  Hye Jin LEE ,  Ahyoun LIM ,  Hyoung-Juhn KIM ,  Dirk HENKENSMEIER ,  Sung Jong YOO ,  Jin Young KIM ,  So Young LEE ,  Hyun Seo PARK

IPC: C25B1/10 ,  C25B11/03 ,  C25B11/04 ,  C25D9/04

Abstract: The present disclosure relates to an IrO2 electrodeposited porous titanium composite layer of a polymer electrolyte membrane water electrolysis apparatus serving as both a diffusion layer and an oxygen electrode, the apparatus including: a porous titanium (Ti) layer; and an electrodeposited iridium oxide (IrO2) layer on the porous Ti layer. The IrO2 layer may be uniformly deposited on a porous Ti layer through an electrolysis process, and the electrodeposited IrO2 layer may play multiple roles as not only a catalyst layer toward oxygen evolution reaction (OER) on the surface of the Ti layer, but also a corrosion-protection layer which prevents an inner Ti layer from corrosion.

公开(公告)号：US20150266762A1

公开(公告)日：2015-09-24

申请号：US14339884

申请日：2014-07-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Suk Woo NAM ,  Jaeyune RYU ,  Sung Jong YOO ,  Sung Pil YOON ,  Tae Hoon LIM ,  Eun Ae CHO ,  Insoo CHOI ,  Jonghee HAN ,  Jun Young HAN ,  Dirk HENKENSMEIER

IPC: C02F9/00 ,  C02F1/14 ,  C02F1/469

CPC classification number: C02F1/4693 ,  C02F1/14 ,  C02F2103/007 ,  C02F2103/08 ,  C02F2209/05 ,  Y02A20/128 ,  Y02A20/129 ,  Y02A20/134 ,  Y02A20/142 ,  Y02W10/37

Abstract: In a complex system including a desalination plant and a reverse electrodialysis equipment, a concentrated sea water discharged from the desalination plant having a salt concentration of about 50 to 75 g/L or about 50 to 60 g/L is provided as a high-concentration salt solution of the reverse electrodialysis equipment while low salinity water having a salt concentration of about 0.01 to 2 g/L, most preferably about 0.01 to 1 g/L, is provided as a low-concentration salt solution of the reverse electrodialysis equipment. Thereby, a recycling degree of a concentrated sea water may be enhanced as well as a power density produced by the complex system is significantly improved.

Abstract translation: 在包括脱盐设备和反电渗设备的复杂系统中，从盐水浓度为约50至75g / L或约50至60g / L的脱盐设备排出的浓缩海水作为高浓度 作为反电渗析设备的低浓度盐溶液，提供盐浓度为约0.01〜2g / L，最优选为0.01〜1g / L左右的低盐度水的逆电渗析设备的盐溶液。 由此，可以提高浓缩海水的再循环度，并且显着提高复合体系产生的功率密度。

公开(公告)号：US20140224124A1

公开(公告)日：2014-08-14

申请号：US13892548

申请日：2013-05-13

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

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

IPC: B01D71/62 ,  B01D67/00

CPC classification number: B01D71/62 ,  B01D53/228 ,  B01D67/0002 ,  B01D67/0095 ,  B01D2256/12 ,  B01D2257/102 ,  C01B13/0251 ,  C08G73/18

Abstract: Provided are cardo copolybenzimidazoles, a gas separation membrane using the same and a method for preparing the same. More particularly, provided are cardo copolybenzimidazoles obtained by introducing cardo groups and aromatic ether groups to a polybenzimidazole backbone, a gas separation membrane having significantly improved oxygen permeability by using the same, and a method for preparing the same. The cardo copolybenzimidazoles have improved solubility as compared to the polybenzimidazole polymers according to the related art, show excellent mechanical properties while maintaining thermal stability so as to be formed into a film shape, and provide a gas separation membrane having significantly improved gas permeability, particularly, oxygen permeability.

Abstract translation: 提供的是共聚苯并咪唑类，其使用的气体分离膜及其制备方法。 更具体地说，提供了通过将聚苯并咪唑主链导体基团和芳族醚基团引入的共聚苯并咪唑，通过使用它们具有显着改善的氧渗透性的气体分离膜及其制备方法。 与根据现有技术的聚苯并咪唑聚合物相比，卡诺共聚苯并咪唑具有改善的溶解性，显示优异的机械性能，同时保持热稳定性以形成膜状，并提供具有显着改善的气体渗透性的气体分离膜， 透氧性。

公开(公告)号：US20170187042A1

公开(公告)日：2017-06-29

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

IPC: H01M4/86 ,  H01M4/92 ,  H01M8/18 ,  H01M4/88

CPC classification number: H01M4/8657 ,  H01M4/8615 ,  H01M4/8807 ,  H01M4/8853 ,  H01M4/886 ,  H01M4/926 ,  H01M8/186 ,  Y02E60/528

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.

公开(公告)号：US20170005342A1

公开(公告)日：2017-01-05

申请号：US14979877

申请日：2015-12-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jin Young KIM ,  Sung Jong YOO ,  Dirk HENKENSMEIER ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Yeon Hun JEONG ,  Nayoung KIM ,  Chang Won YOON ,  Jonghee HAN ,  Suk Woo NAM ,  Tae Hoon LIM

IPC: H01M4/88 ,  H01M4/90

Abstract: Disclosed is a carbon support for a fuel cell catalyst that supports a metal. The carbon support includes a conductive carbon support and nitrogen atoms doped into the conductive carbon support. Also disclosed is a method for preparing the carbon support. Also disclosed is a catalyst including the carbon support. The catalyst has greatly improved degradation resistance compared to conventional catalysts for fuel cells. In addition, the catalyst is not substantially degraded even when applied to a single cell.

Abstract translation: 公开了一种用于支撑金属的燃料电池催化剂的碳载体。 碳载体包括导电碳载体和掺杂到导电碳载体中的氮原子。 还公开了一种制备碳载体的方法。 还公开了包括碳载体的催化剂。 与用于燃料电池的常规催化剂相比，催化剂具有显着改善的降解性能。 此外，即使施加到单个电池，催化剂也基本上不劣化。

公开(公告)号：US20130189605A1

公开(公告)日：2013-07-25

申请号：US13744527

申请日：2013-01-18

Applicant: Korea Institute of Science and Technology

Inventor： Shin Ae SONG ,  Sung Pil YOON ,  Seong Ahn HONG ,  Tae Hoon LIM ,  Jong Hee HAN ,  In Hwan OH ,  Suk Woo NAM ,  Hyoung Juhn KIM ,  Eun Ae CHO ,  Jong Hyun JANG ,  Dirk HENKENSMEIER ,  Thieu CAM-ANH

IPC: H01M8/12

CPC classification number: H01M8/126 ,  C04B35/50 ,  C04B2235/3203 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3244 ,  C04B2235/3298 ,  C04B2235/44 ,  C04B2235/442 ,  C04B2235/443 ,  C04B2235/656 ,  C04B2235/77 ,  H01M2300/0074 ,  Y02E60/525 ,  Y02P70/56

Abstract: Provided are a ceria-based composition including ceria or metal-doped ceria, lithium salt, and optionally, bismuth oxide, ceria-based composite electrolyte powder, and a sintering method and sintered body using the same. Particularly, the lithium salt is present in an amount more than 0 wt % and equal to or less than 5 wt %, and bismuth oxide is present in an amount more than 0 wt % and equal to or less than 10 wt %. It is possible to reduce sintering temperature by adding a low-melting point and/or volatile compound to a ceria-based material. In this manner, it is possible to ensure a high composite sintering density, for example, of 95% or more even at a temperature, for example, of 1000° C. or lower, which is significantly lower than the conventional sintering temperature of 1500° C. in the case of a ceria-based material alone.

Abstract translation: 提供了包括二氧化铈或金属掺杂的二氧化铈，锂盐和任选的氧化铋，二氧化铈类复合电解质粉末和使用其的烧结方法和烧结体的二氧化铈基组合物。 特别地，锂盐的存在量大于0重量％且等于或小于5重量％，并且氧化铋以大于0重量％且等于或小于10重量％的量存在。 可以通过向二氧化铈基材料中添加低熔点和/或挥发性化合物来降低烧结温度。 以这种方式，即使在例如1000℃以下的温度下也可以确保高的复合烧结密度，例如为95％以上，这明显低于常规烧结温度为1500 在仅有二氧化铈基材料的情况下。