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公开(公告)号：EP4342583A1
公开(公告)日：2024-03-27
申请号：EP22804923.5
申请日：2022-05-13
发明人： ROH, Chiwoo , KIM, Hansung , KIM, Gil Ho , SONG, Kyu Ho
摘要： The present invention relates to: a method for preparing a reduction catalyst for water electrolysis using protective coating; a reduction electrode for alkaline water electrolysis comprising a reduction catalyst prepared thereby, and an alkaline water electrolysis system. The method for preparing a reduction catalyst for water electrolysis of the present invention applies a protective coating method and suppresses the growth of alloy particles in a subsequent high-temperature heat treatment step, and, thus, can prepare and provide a catalyst with a high alloying degree. As a result, a non-novel metal alloy catalyst prepared according to the method of the present invention has excellent catalytic characteristics by exhibiting hydrogen evolution reaction (HER) performance similar to that of platinum, which is a noble metal catalyst.
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公开(公告)号：EP4252904A1
公开(公告)日：2023-10-04
申请号：EP21898549.7
申请日：2021-11-23
发明人： KIM, Gil Ho , ROH, Chi Woo , SONG, Kyu Ho
IPC分类号： B01J23/00 , B01J23/10 , B01J23/75 , B01J35/02 , B01J35/10 , B01J35/00 , B01J37/03 , B01J37/08 , B01J37/00
摘要： Provided are an oxidation catalyst for anion exchange membrane water electrolysis exhibiting excellent catalytic activity and electrical conductivity, a uniform particle size distribution and a large surface area, and excellent durability, and a preparation method thereof, an anode for anion exchange membrane water electrolysis and an anion exchange membrane water electrolysis system, each including the oxidation catalyst.
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公开(公告)号：EP4245891A1
公开(公告)日：2023-09-20
申请号：EP21892325.8
申请日：2021-11-10
发明人： KIM, Gil Ho , LEE, Hyunjoo , ROH, Chi Woo , SONG, Kyu Ho , JEON, Sun Seo
IPC分类号： C25B11/091 , C25B1/04 , C25B9/23
摘要： The present disclosure provides an oxidization electrode for anion exchange membrane water electrolysis having low cost, high performance, and high stability.
Specifically, an embodiment of the present disclosure provides an oxidization electrode for anion exchange membrane water electrolysis, comprising: a nickel metal; and a layered double hydroxide (LDH) with a monolayer structure containing nickel and iron and disposed on one surface or both surfaces of the nickel metal.-
4.发明公开
公开(公告)号：EP4406644A1
公开(公告)日：2024-07-31
申请号：EP22873207.9
申请日：2022-09-23
发明人： KIM, Gil Ho , PARK, Joung Hoon , WOO, Wan Jong , SONG, Kyu Ho , ROH, Chiwoo
IPC分类号： B01J21/00 , B01J23/755 , B01J23/75 , B01J35/02 , B01J35/10 , B01J37/03 , B01J37/08 , B01J37/00 , C25B1/04
CPC分类号： Y02E60/36 , Y02P20/133 , B01J21/00 , B01J23/75 , B01J23/755 , B01J37/00 , B01J37/08 , B01J37/03 , C25B1/04 , B01J35/00 , B01J35/30 , B01J35/60
摘要： The present invention relates to an oxidation catalyst for anion exchange membrane water electrolysis that exhibits excellent catalytic activity, electrical conductivity and a large surface area, and a preparation method thereof, an anode for anion exchange membrane water electrolysis and an anion exchange membrane water electrolysis system, each including the same.
The oxidation catalyst for anion exchange membrane water electrolysis of the present invention includes a spinel-based oxide, and is prepared by precisely controlling the use of complexing agent and the pH using a co-precipitation method, whereby the oxidation catalyst can reduce the catalyst particle size to facilitate uniform dispersion of high viscosity and has a nano-sized flake structure, which makes it possible to uniformly coat the ionomer between flakes, and forms a porous structure, thereby widening the surface area and achieving excellent catalytic activity.
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