Ternary layered double hydroxide oxygen evolution reaction electrocatalyst for anion exchange membrane alkaline seawater electrolysis

Yoo Sei Park; Jae Yeop Jeong; Myeong Je Jang; Chae Yeon Kwon; Geul Han Kim; Jaehoon Jeong; Ji hoon Lee; Jooyoung Lee; Sung Mook Choi

doi:10.1016/j.jechem.2022.08.011

Ternary layered double hydroxide oxygen evolution reaction electrocatalyst for anion exchange membrane alkaline seawater electrolysis

Yoo Sei Park, Jae Yeop Jeong, Myeong Je Jang, Chae Yeon Kwon, Geul Han Kim, Jaehoon Jeong, Ji hoon Lee, Jooyoung Lee, Sung Mook Choi

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

Anion exchange membrane (AEM) water electrolyzers are promising energy devices for the production of clean hydrogen from seawater. However, the lack of active and robust electrocatalysts for the oxygen evolution reaction (OER) severely impedes the development of this technology. In this study, a ternary layered double hydroxide (LDH) OER electrocatalyst (NiFeCo-LDH) is developed for high-performance AEM alkaline seawater electrolyzers. The AEM alkaline seawater electrolyzer catalyzed by the NiFeCo-LDH shows high seawater electrolysis performance (0.84 A/cm² at 1.7 V_cell) and high hydrogen production efficiency (77.6% at 0.5 A/cm²), thus outperforming an electrolyzer catalyzed by a benchmark IrO₂ electrocatalyst. The NiFeCo-LDH electrocatalyst greatly improves the kinetics of the AEM alkaline seawater electrolyzer, consequently reducing its activation loss and leading to high performance. Based on the results, this NiFeCo-LDH-catalyzed AEM alkaline seawater electrolyzer can likely surpass the energy conversion targets of the US Department of Energy.

Original language	English
Pages (from-to)	127-134
Number of pages	8
Journal	Journal of Energy Chemistry
Volume	75
DOIs	https://doi.org/10.1016/j.jechem.2022.08.011
State	Published - Dec 2022

Keywords

Alkaline seawater electrolysis
Anion exchange membranes water electrolysis
Hydrogen production
Oxygen evolution reactions

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10.1016/j.jechem.2022.08.011

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title = "Ternary layered double hydroxide oxygen evolution reaction electrocatalyst for anion exchange membrane alkaline seawater electrolysis",

abstract = "Anion exchange membrane (AEM) water electrolyzers are promising energy devices for the production of clean hydrogen from seawater. However, the lack of active and robust electrocatalysts for the oxygen evolution reaction (OER) severely impedes the development of this technology. In this study, a ternary layered double hydroxide (LDH) OER electrocatalyst (NiFeCo-LDH) is developed for high-performance AEM alkaline seawater electrolyzers. The AEM alkaline seawater electrolyzer catalyzed by the NiFeCo-LDH shows high seawater electrolysis performance (0.84 A/cm2 at 1.7 Vcell) and high hydrogen production efficiency (77.6% at 0.5 A/cm2), thus outperforming an electrolyzer catalyzed by a benchmark IrO2 electrocatalyst. The NiFeCo-LDH electrocatalyst greatly improves the kinetics of the AEM alkaline seawater electrolyzer, consequently reducing its activation loss and leading to high performance. Based on the results, this NiFeCo-LDH-catalyzed AEM alkaline seawater electrolyzer can likely surpass the energy conversion targets of the US Department of Energy.",

keywords = "Alkaline seawater electrolysis, Anion exchange membranes water electrolysis, Hydrogen production, Oxygen evolution reactions",

author = "Park, {Yoo Sei} and Jeong, {Jae Yeop} and Jang, {Myeong Je} and Kwon, {Chae Yeon} and Kim, {Geul Han} and Jaehoon Jeong and Lee, {Ji hoon} and Jooyoung Lee and Choi, {Sung Mook}",

note = "Publisher Copyright: {\textcopyright} 2022 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences",

year = "2022",

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doi = "10.1016/j.jechem.2022.08.011",

language = "English",

volume = "75",

pages = "127--134",

journal = "Journal of Energy Chemistry",

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TY - JOUR

T1 - Ternary layered double hydroxide oxygen evolution reaction electrocatalyst for anion exchange membrane alkaline seawater electrolysis

AU - Park, Yoo Sei

AU - Jeong, Jae Yeop

AU - Jang, Myeong Je

AU - Kwon, Chae Yeon

AU - Kim, Geul Han

AU - Jeong, Jaehoon

AU - Lee, Ji hoon

AU - Lee, Jooyoung

AU - Choi, Sung Mook

PY - 2022/12

Y1 - 2022/12

N2 - Anion exchange membrane (AEM) water electrolyzers are promising energy devices for the production of clean hydrogen from seawater. However, the lack of active and robust electrocatalysts for the oxygen evolution reaction (OER) severely impedes the development of this technology. In this study, a ternary layered double hydroxide (LDH) OER electrocatalyst (NiFeCo-LDH) is developed for high-performance AEM alkaline seawater electrolyzers. The AEM alkaline seawater electrolyzer catalyzed by the NiFeCo-LDH shows high seawater electrolysis performance (0.84 A/cm2 at 1.7 Vcell) and high hydrogen production efficiency (77.6% at 0.5 A/cm2), thus outperforming an electrolyzer catalyzed by a benchmark IrO2 electrocatalyst. The NiFeCo-LDH electrocatalyst greatly improves the kinetics of the AEM alkaline seawater electrolyzer, consequently reducing its activation loss and leading to high performance. Based on the results, this NiFeCo-LDH-catalyzed AEM alkaline seawater electrolyzer can likely surpass the energy conversion targets of the US Department of Energy.

AB - Anion exchange membrane (AEM) water electrolyzers are promising energy devices for the production of clean hydrogen from seawater. However, the lack of active and robust electrocatalysts for the oxygen evolution reaction (OER) severely impedes the development of this technology. In this study, a ternary layered double hydroxide (LDH) OER electrocatalyst (NiFeCo-LDH) is developed for high-performance AEM alkaline seawater electrolyzers. The AEM alkaline seawater electrolyzer catalyzed by the NiFeCo-LDH shows high seawater electrolysis performance (0.84 A/cm2 at 1.7 Vcell) and high hydrogen production efficiency (77.6% at 0.5 A/cm2), thus outperforming an electrolyzer catalyzed by a benchmark IrO2 electrocatalyst. The NiFeCo-LDH electrocatalyst greatly improves the kinetics of the AEM alkaline seawater electrolyzer, consequently reducing its activation loss and leading to high performance. Based on the results, this NiFeCo-LDH-catalyzed AEM alkaline seawater electrolyzer can likely surpass the energy conversion targets of the US Department of Energy.

KW - Alkaline seawater electrolysis

KW - Anion exchange membranes water electrolysis

KW - Hydrogen production

KW - Oxygen evolution reactions

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U2 - 10.1016/j.jechem.2022.08.011

DO - 10.1016/j.jechem.2022.08.011

M3 - Article

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SN - 2095-4956

VL - 75

SP - 127

EP - 134

JO - Journal of Energy Chemistry

JF - Journal of Energy Chemistry

ER -

Ternary layered double hydroxide oxygen evolution reaction electrocatalyst for anion exchange membrane alkaline seawater electrolysis

Abstract

Keywords

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