Modulating selectivity and stability of the direct seawater electrolysis for sustainable green hydrogen production

被引：0
作者：
Yao, Dazhi [1 ]
Liu, Chun [2 ]
Zhang, Yanzhao [3 ]
Wang, Shuhao [1 ]
Nie, Yan [1 ]
Qiao, Man [2 ]
Zhu, Dongdong [2 ]
机构：
[1] School of Chemistry, University of New South Wales (UNSW Sydney)
[2] School of Chemistry and Materials Science, Institute of Advanced Materials and Flexible Electronics (IAMFE), Nanjing University of Information Science and Technology, Nanjing
[3] School of Chemical Engineering, University of Queensland
来源：
Materials Today Catalysis | 2025年 / 8卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Chloride chemistry; Direct seawater electrolysis; Green hydrogen; Precipitation; Water electrolyzer;
D O I：
10.1016/j.mtcata.2025.100089
中图分类号：
学科分类号：
摘要：
Direct seawater electrolysis (DSE) has emerged as a compelling route to sustainable hydrogen production, leveraging the vast global reserves of seawater. However, the inherently complex composition of seawater—laden with halide ions, multivalent cations (Mg2+, Ca2+), and organic/biological impurities—presents formidable challenges in maintaining both selectivity and durability. Chief among these obstacles is mitigating chloride corrosion and suppressing chlorine evolution reaction (ClER) at the anode, while also preventing the precipitation of magnesium and calcium hydroxides at the cathode. This review consolidates recent advances in material engineering and cell design strategies aimed at controlling undesired side reactions, enhancing electrode stability, and maximizing energy efficiency in DSE. We first outline the fundamental thermodynamic and kinetic hurdles introduced by Cl− and other impurities. This discussion highlights how these factors accelerate catalyst degradation and drive suboptimal reaction pathways. We then delve into innovative approaches to improve selectivity and durability of DSE—such as engineering protective barrier layers, tuning electrolyte interfaces, developing corrosion-resistant materials, and techniques to minimize Mg/Ca-related precipitations. Finally, we explore emerging reactor configurations, including asymmetric and membrane-free electrolyzers, which address some barriers for DSE commercialization. Collectively, these insights provide a framework for designing next-generation DSE systems, which can achieve large-scale, cost-effective, and environmentally benign hydrogen production. © 2025 The Authors
引用
收藏
相关论文
共 157 条
  • [1] Bouckaert S., Pales A.F., McGlade C., Remme U., Wanner B., Varro L., Ambrosio D.D., Spencer T., International Energy Agency, Net Zero by 2050: A Roadmap for the Global Energy Sector, (2021)
  • [2] Lee B., Wang L., Wang Z., Cooper N.J., Elimelech M., Directing the research agenda on water and energy technologies with process and economic analysis, Energy Environ. Sci., 16, (2023)
  • [3] Harichandan S., Kar S.K., Financing the hydrogen industry: exploring demand and supply chain dynamics, Environ. Sci. Pollut. Res., (2023)
  • [4] Wappler M., Unguder D., Lu X., Ohlmeyer H., Teschke H., Lueke W., Building the green hydrogen market – current state and outlook on green hydrogen demand and electrolyzer manufacturing, Int. J. Hydrog. Energy, 47, (2022)
  • [5] Tang J., Xu X., Tang T., Zhong Y., Shao Z., Perovskite-based electrocatalysts for cost-effective ultrahigh-current-density water splitting in anion exchange membrane electrolyzer cell, Small Methods, 6, (2022)
  • [6] Zhang Y., Yao D., Liu J., Wang Z., Wang L., Advancing strategies on green H<sub>2</sub> production via water electrocatalysis: bridging the benchtop research with industrial scale-up, Microstructures, 4, (2024)
  • [7] Wang N., Song S., Wu W., Deng Z., Tang C., Bridging laboratory electrocatalysts with industrially relevant alkaline water electrolyzers, Adv. Energy Mater., 14, (2024)
  • [8] Razmjooei F., Morawietz T., Taghizadeh E., Hadjixenophontos E., Mues L., Gerle M., Wood B.D., Harms C., Gago A.S., Ansar S.A., Friedrich K.A., Increasing the performance of an anion-exchange membrane electrolyzer operating in pure water with a nickel-based microporous layer, Joule, 5, (2021)
  • [9] Hao S., Sheng H., Liu M., Huang J., Zheng G., Zhang F., Liu X., Su Z., Hu J., Qian Y., Torsion strained iridium oxide for efficient acidic water oxidation in proton exchange membrane electrolyzers, Nat. Nanotechnol., 16, (2021)
  • [10] Kundu J., Kwon T., Lee K., Choi S.-I., Exploration of metal-free 2D electrocatalysts toward the oxygen electroreduction, Exploration, 4, (2024)
12345678910