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.

公开(公告)号：US20130216935A1

公开(公告)日：2013-08-22

申请号：US13761322

申请日：2013-02-07

Applicant: Korea Institute Of Science And Technology

Inventor： Hyoung-Juhn KIM ,  Eun Ae CHO ,  Jong Hyun JANG ,  Dae Ki CHOI ,  Chang Won YOON ,  Suk-Woo NAM ,  Dirk HENKENSMEIER ,  Tae Hoon LIM

IPC: H01M8/10

CPC classification number: H01M8/103 ,  C08G73/18 ,  C08G73/22 ,  C08L79/04 ,  H01M8/1048 ,  Y02E60/521 ,  Y02P70/56

Abstract: Provided is poly(benzimidazole-co-benzoxazole) having polybenzimidazole to which benzoxazole units are introduced, as a polymer electrolyte material. The polymer electrolyte material has both high proton conductivity and excellent mechanical properties even when it is obtained by in-situ phosphoric acid doping. The polymer electrolyte material may substitute for the conventional phosphoric acid-doped polybenzimidazole in a polymer electrolyte membrane fuel cell, particularly in a high-temperature polymer electrolyte membrane fuel cell.

Abstract translation: 提供具有导入苯并恶唑单元的聚苯并咪唑的聚（苯并咪唑 - 共苯并恶唑）作为聚合物电解质材料。 即使通过原位磷酸掺杂获得，聚合物电解质材料也具有高质子传导性和优异的机械性能。 聚合物电解质材料可以在聚合物电解质膜燃料电池中，特别是在高温聚合物电解质膜燃料电池中替代常规磷酸掺杂的聚苯并咪唑。