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：
中国博士后科学基金; 中国国家自然科学基金;
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
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  • [41] Liang J., Li Z., He X., Luo Y., Zheng D., Wang Y., Li T., Ying B., Sun S., Cai Z., Electrocatalytic seawater splitting: nice designs, advanced strategies, challenges and perspectives, Mater. Today, 69, (2023)
  • [42] Xiao X., Yang L., Sun W., Chen Y., Yu H., Li K., Jia B., Zhang L., Ma T., Electrocatalytic water splitting: from harsh and mild conditions to natural seawater, Small, 18, (2022)
  • [43] Singh R., Membrane Technology and Engineering for Water Purification: Application, Systems Design and Operation, (2014)
  • [44] Yusuf A., Sodiq A., Giwa A., Eke J., Pikuda O., De Luca G., Di Salvo J.L., Chakraborty S., A review of emerging trends in membrane science and technology for sustainable water treatment, J. Clean. Prod., 266, (2020)
  • [45] Bundschuh J., Kaczmarczyk M., Ghaffour N., Tomaszewska B., State-of-the-art of renewable energy sources used in water desalination: present and future prospects, Desalination, 508, (2021)
  • [46] Caldera U., Breyer C., Learning curve for seawater reverse osmosis desalination plants: capital cost trend of the past, present, and future, Water Resour. Res., 53, (2017)
  • [47] Liu G., Xu Y., Yang T., Jiang L., Recent advances in electrocatalysts for seawater splitting, Nano Mater. Sci., 5, (2023)
  • [48] Zhang D., Cheng H., Hao X., Sun Q., Zhang T., Xu X., Ma Z., Yang T., Ding J., Liu X., Stable seawater oxidation at high-salinity conditions promoted by low iron-doped non-noble-metal electrocatalysts, ACS Catal., 13, (2023)
  • [49] Ren J.-T., Chen L., Tian W.-W., Song X.-L., Kong Q.-H., Wang H.-Y., Yuan Z.-Y., Rational synthesis of core-shell-structured nickel sulfide-based nanostructures for efficient seawater electrolysis, Small, 19, (2023)
  • [50] Gaur A., Enkhbayar E., Sharma J., Mhin S., Han H., Chloride-ion blocking in seawater electrolysis: narrating the tale of likes and dislikes between anode and ions, Energy Environ. Mater., 8, (2025)
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