Solar-Powered AEM Electrolyzer via PGM-Free (Oxy)hydroxide Anode with Solar to Hydrogen Conversion Efficiency of 12.44

Jun Seok Ha; Youngtae Park; Jae-Yeop Jeong; Seung Hun Lee; Sung Jun Lee; In Tae Kim; Seo Hyun Park; Hyunsoo Jin; Soo Min Kim; Suwon Choi; Chiho Kim; Sung Mook Choi; Bong Kyun Kang; Hyuck Mo Lee; Yoo Sei Park

doi:10.1002/advs.202401782

Solar-Powered AEM Electrolyzer via PGM-Free (Oxy)hydroxide Anode with Solar to Hydrogen Conversion Efficiency of 12.44

Adv Sci (Weinh). 2024 Apr 24:e2401782. doi: 10.1002/advs.202401782. Online ahead of print.

Authors

Jun Seok Ha¹, Youngtae Park^{2

3}, Jae-Yeop Jeong^{4

5}, Seung Hun Lee⁵, Sung Jun Lee^{1

6}, In Tae Kim^{1

6}, Seo Hyun Park^{1

6}, Hyunsoo Jin⁷, Soo Min Kim⁸, Suwon Choi⁵, Chiho Kim⁴, Sung Mook Choi^{4

9}, Bong Kyun Kang^{10

11}, Hyuck Mo Lee², Yoo Sei Park^{1

6}

Affiliations

¹ Department of Advanced Material Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Chungbuk, 28644, Republic of Korea.
² Department of Materials Science and Engineering, Korea Advanced Institute of Science and Engineering (KAIST), Daejeon, 34141, Republic of Korea.
³ Hydrogen Research Department, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea.
⁴ Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea.
⁵ Department of Materials Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea.
⁶ Department of Urban, Energy, and Environmental Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Chungbuk, 28644, Republic of Korea.
⁷ Department of Mechanical & Materials Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA, 01609, USA.
⁸ Nano Electronic Materials and Components Research Center, Gumi Electronics and Information Technology Research Institute, Sandongmyeon, Gumi 39171, Republic of Korea.
⁹ Advanced Materials Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea.
¹⁰ Department of Electronic Materials, Devices, and Equipment Engineering, Soonchunhyang University, 22, Soonchunhyang-ro, Asan City, Chungnam, 31538, Republic of Korea.
¹¹ Department of Display Materials Engineering, Soonchunhyang University, 22, Soonchunhyang-ro, Asan City, Chungnam, 31538, Republic of Korea.

PMID: 38654698
DOI: 10.1002/advs.202401782

Abstract

Water electrolyzers powered by renewable energy are emerging as clean and sustainable technology for producing hydrogen without carbon emissions. Specifically, anion exchange membrane (AEM) electrolyzers utilizing non-platinum group metal (non-PGM) catalysts have garnered attention as a cost-effective method for hydrogen production, especially when integrated with solar cells. Nonetheless, the progress of such integrated systems is hindered by inadequate water electrolysis efficiency, primarily caused by poor oxygen evolution reaction (OER) electrodes. To address this issue, a NiFeCo─OOH has developed as an OER electrocatalyst and successfully demonstrated its efficacy in an AEM electrolyzer, which is powered by renewable electricity and integrated with a silicon solar cell.

Keywords: anion exchange membrane water electrolysis; electrocatalysis; hydrogen energy; solar to hydrogen; water splitting.

Abstract

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