| US 10,975,476 B2 | ||
| Iridium oxide electrodeposited porous titanium composite layer of polymer electrolyte membrane water electrolysis apparatus, method for preparing the same, and polymer electrolyte membrane water electrolysis apparatus using the same | ||
| Jong Hyun Jang, Seoul (KR); Seunghoe Choe, Seoul (KR); Youngseung Na, Seoul (KR); Hye Jin Lee, Seoul (KR); Ahyoun Lim, Seoul (KR); Hyoung-Juhn Kim, Seoul (KR); Dirk Henkensmeier, Seoul (KR); Sung Jong Yoo, Seoul (KR); Jin Young Kim, Seoul (KR); So Young Lee, Seoul (KR); and Hyun Seo Park, Seoul (KR) | ||
| Assigned to KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR) | ||
| Filed by KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, Seoul (KR) | ||
| Filed on Nov. 21, 2018, as Appl. No. 16/198,286. | ||
| Claims priority of application No. 10-2017-0161523 (KR), filed on Nov. 29, 2017. | ||
| Prior Publication US 2019/0161868 A1, May 30, 2019 | ||
| Int. Cl. C25B 1/04 (2021.01); C25D 9/06 (2006.01); C25B 9/23 (2021.01); C25B 11/031 (2021.01); C25B 11/075 (2021.01); C25B 11/063 (2021.01); C25B 11/052 (2021.01); C25D 9/04 (2006.01) | ||
| CPC C25B 1/04 (2013.01) [C25B 9/23 (2021.01); C25B 11/031 (2021.01); C25B 11/052 (2021.01); C25B 11/063 (2021.01); C25B 11/075 (2021.01); C25D 9/04 (2013.01); C25D 9/06 (2013.01)] | 14 Claims |
| 1. 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 comprising: a porous titanium (Ti) layer; and
an electrodeposited iridium oxide (IrO2) layer on the porous Ti layer;
wherein the porous Ti layer is in a form of titanium mesh having a porosity of 60% to 70%;
wherein the electrodeposited IrO2 layer comprises amorphous iridium oxide having a density of 7 to 9 g/cm3; and
wherein the electrodeposited IrO2 layer has a thickness of 10 to 210 nm.
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