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：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.