公开(公告)号：US09156008B2

公开(公告)日：2015-10-13

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 ,  B01D53/22 ,  B01D67/00 ,  C08G73/18 ,  C01B13/02

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：US09799904B2

公开(公告)日：2017-10-24

申请号：US14016687

申请日：2013-09-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun Jang ,  Hee-young Park ,  Hyoung-Juhn Kim ,  Dirk Henkensmeier ,  Sung Pil Yoon ,  Suk Woo Nam ,  Hyung Chul Ham ,  Tae-Hoon Lim ,  Jonghee Han ,  Sung Jong Yoo ,  Eun Ae Cho

IPC: H01M8/10 ,  H01M8/1004 ,  H01M4/92

CPC classification number: H01M8/1004 ,  H01M4/921 ,  H01M4/923 ,  H01M4/926 ,  Y02P70/56

Abstract: A polymer electrolyte membrane fuel cell is provided. The polymer electrolyte membrane fuel cell includes a phosphoric acid-doped polyimidazole electrolyte membrane and a complex catalyst. In the complex catalyst, an alloy or mixture of a metal and a chalcogen element is supported on a carbon carrier. The polymer electrolyte membrane fuel cell exhibits further improved long-term operation, power generation efficiency, and operational stability at high temperature. The complex catalyst can be produced by a simple method.

公开(公告)号：US09413014B2

公开(公告)日：2016-08-09

申请号：US14171906

申请日：2014-02-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  GL MATERIALS INC.

Inventor： Sung Jong Yoo ,  Hee-young Park ,  Jong Hyun Jang ,  Hyoung-Juhn Kim ,  Tae-Hoon Lim ,  Sang Young Lee ,  Sang Hyun Ahn ,  Namgee Jung ,  Suk Woo Nam ,  Eun Ae Cho ,  Seok Keun Koh

IPC: B01J21/18 ,  B01J23/40 ,  B01J23/48 ,  B01J37/00 ,  H01M4/90 ,  H01M4/92

CPC classification number: H01M4/9083 ,  H01M4/9041 ,  H01M4/921 ,  H01M4/926 ,  Y02E60/50

Abstract: The present disclosure relates to a method and an apparatus for preparing nanosized metal or alloy nanoparticles by depositing metal or alloy nanoparticles with superior size uniformity on the surface of a powder as a base material by vacuum deposition and then dissolving or melting the base material using a solvent or heat. The method solves the problems of the existing expensive multi-step synthesis method based on chemical reduction and allows effective synthesis of metal or alloy nanoparticles with very uniform size and metal or alloy catalyst nanoparticles supported on carbon at low cost.

Abstract translation: 本公开内容涉及一种通过在真空沉积作为基材的粉末表面上沉积具有优异尺寸均匀性的金属或合金纳米颗粒来制备纳米尺寸金属或合金纳米颗粒的方法和装置，然后使用 溶剂或热量。 该方法解决了基于化学还原的现有昂贵的多步合成方法的问题，并且能够有效合成具有非常均匀尺寸的金属或合金纳米颗粒，并以低成本负载在碳上的金属或合金催化剂纳米颗粒。

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

IPC: B01J23/58 ,  H01M4/92

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.