公开(公告)号：US20200230589A1

公开(公告)日：2020-07-23

申请号：US16534216

申请日：2019-08-07

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

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

IPC: B01J37/34 ,  B01J23/50 ,  B01J23/52 ,  B01J37/02

Abstract: Disclosed are a metal single-atom catalyst and a method for preparing the same. The method uses a minimal amount of chemicals and is thus environmentally friendly compared to conventional chemical and/or physical methods. In addition, the method enables the preparation of a single-atom catalyst in a simple and economical manner without the need for further treatment such as acid treatment or heat treatment. Furthermore, the method is universally applicable to the preparation of single-atom catalysts irrespective of the kinds of metals and supports, unlike conventional methods that suffer from very limited choices of metal materials and supports. Therefore, the method can be widely utilized to prepare various types of metal single-atom catalysts. All metal atoms in the metal single-atom catalyst can participate in catalytic reactions. This optimal atom utilization achieves maximum reactivity per unit mass and can minimize the amount of the metal used, which is very economical.

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：US20180102562A1

公开(公告)日：2018-04-12

申请号：US15719557

申请日：2017-09-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

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

IPC: H01M8/106 ,  H01M8/1039 ,  H01M8/1069

CPC classification number: H01M8/106 ,  H01M8/1039 ,  H01M8/1053 ,  H01M8/1069 ,  H01M2008/1095 ,  Y02P70/56

Abstract: Provided is a composite polymer electrolyte membrane for a fuel cell, including: a porous fluorinated polymer support; and a perfluorinated sulfonic acid polymer resin membrane which fills the inside of pores of the porous perfluorinated polymer support and covers an external surface of the porous fluorinated polymer support.

公开(公告)号：US20150340735A1

公开(公告)日：2015-11-26

申请号：US14718170

申请日：2015-05-21

Applicant: YOULCHON CHEMICAL CO., LTD. ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn KIM ,  Jong Hyub PARK ,  Jin Ho KIM ,  So Young LEE

IPC: H01M10/0565 ,  C08G75/20

CPC classification number: H01M10/0565 ,  C08G75/20 ,  C08G75/23

Abstract: As a polymerization solvent for use in the polymerization of monomers for a hydrocarbon-based electrolyte polymer, a mixed solvent containing a first solvent, such as dimethyl acetamide, N-methylpyrrolidone or dimethyl sulfoxide, and an alcohol as a second solvent is used instead of a dimethyl acetamide/toluene mixture or dimethyl acetamide alone according to the related art. By using the mixed solvent, it is possible to obtain a molecular weight of polymer equal to or higher than the molecular weight of polymer obtained from the method according to the related art, even when the reaction time is reduced. Therefore, the disclosed method and polymerization solvent is very useful for a mass production of a hydrocarbon-based electrolyte polymer.

Abstract translation: 作为用于烃系电解质聚合物的单体的聚合的聚合溶剂，可以使用含有第二溶剂如二甲基乙酰胺，N-甲基吡咯烷酮或二甲基亚砜的混合溶剂和作为第二溶剂的醇， 二甲基乙酰胺/甲苯混合物或二甲基乙酰胺单独根据现有技术。 通过使用混合溶剂，即使反应时间减少，也可以获得等于或高于由现有技术方法获得的聚合物的分子量的聚合物的分子量。 因此，所公开的方法和聚合溶剂对于大量生产烃类电解质聚合物是非常有用的。