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Communication

An amorphous FeMoO4 nanorod array enabled high-efficiency oxygen evolution electrocatalysis in alkaline seawater

Jie Tang1,§, Shengjun Sun2,§, Xun He2, Hui Zhang2, Chaoxin Yang2, Min Zhang2, Meng Yue2, Hefeng Wang2, Yuntong Sun2, Yonglan Luo3, Sulaiman Alfaifi4, Asmaa Farouk5, Mohamed S. Hamdy5, Xuping Sun2,3( ), Huiqing Wang6( ), Binwu Ying1( )
Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia
Medical Simulation Centre, West China Second University Hospital, Sichuan University, Chengdu 610041, China

§ Jie Tang and Shengjun Sun contributed equally to this work.

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Abstract

The development of highly efficient and durable oxygen evolution reaction (OER) catalysts for seawater electrolysis is of great importance for applications. Here, an amorphous FeMoO4 nanorod array on Ni foam is reported as a highly active OER electrocatalyst in alkaline seawater, requiring only overpotentials of 303 and 332 mV to achieve 100 and 300 mA·cm−2, respectively. Moreover, it shows strong long-term electrochemical durability for at least 50 h.

Graphical Abstract

An amorphous FeMoO4 nanorod array on Ni foam acts as a high-efficiency and durable water oxidation electrocatalyst in alkaline seawater, requiring an overpotential of only 332 mV to achieve 300 mA·cm−2.

Keywords

amorphous materialFeMoO4 nanorod arrayelectrocatalystseawater electrolysisoxygen evolution reaction

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Nano Research
Volume 17 Issue 4,
April 2024
Pages 2270-2275
DOI: 10.1007/s12274-023-6087-y

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Cite this article:
Tang J, Sun S, He X, et al. An amorphous FeMoO4 nanorod array enabled high-efficiency oxygen evolution electrocatalysis in alkaline seawater. Nano Research, 2024, 17(4): 2270-2275. https://doi.org/10.1007/s12274-023-6087-y
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Oxygen evolution reaction

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Received: 28 June 2023
Revised: 30 July 2023
Accepted: 13 August 2023
Published: 31 August 2023
© Tsinghua University Press 2023