公开(公告)号：US20190071786A1

公开(公告)日：2019-03-07

申请号：US16122640

申请日：2018-09-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

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

IPC: C25B11/04 ,  C25B1/10 ,  C25B9/08

Abstract: Provided is a membrane electrode assembly for a proton exchange membrane water electrolyzer, including: an oxygen electrode including an iridium oxide (IrO2) layer which is an electrodeposited oxygen electrode layer on a titanium (Ti) layer which is a diffusion layer; a hydrogen electrode in which a hydrogen electrode layer is formed on a diffusion layer; and an electrolyte membrane placed between the oxygen electrode layer and the hydrogen electrode layer, in which a portion of the pores of the Ti diffusion layer are filled with an electrolyte of the electrolyte membrane.

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.