Merouani Slimane, Dehane Aissa, Hamdaoui Oualid
Department of Chemical Engineering, Faculty of Process Engineering, University Salah Boubnider Constantine 3, P.O. Box 72, 25000 Constantine, Algeria.
Department of Process Engineering, Faculty of Process Engineering, University Salah Boubnider Constantine 3, P.O. Box 72, 25000 Constantine, Algeria.
Ultrason Sonochem. 2025 Oct;121:107552. doi: 10.1016/j.ultsonch.2025.107552. Epub 2025 Sep 6.
This review synthesizes recent developments in ultrasonication (US)/assisted and US/hybrid processes for hydrogen generation, with a focus on US/electrochemical techniques. It summarizes recent findings, discusses existing constraints, and suggests promising routes for further advancement. US/hybrid processes, including US/electrocatalytic techniques and other US-assisted methods, show great promise in improving efficiency and reducing the energy needed for hydrogen generation. The paper emphasizes how ultrasonication can accelerate electrochemical processes, improve mass transfer, and reduce overpotentials. Ultrasonication enhances the physical and chemical parameters of US/electrocatalytic processes by decreasing cell voltage and overpotentials while boosting overall energy efficiency. Other ultrasonication hybrid processes, such as sonocatalysis and US/photocatalysis, have demonstrated the potential to use ultrasonication to activate catalysts and increase hydrogen yields. Notwithstanding these progresses, difficulties remain, such as improving the understanding of the mechanisms underlying US-enhanced hydrogen generation; optimizing operating conditions (e.g., frequency, acoustic power, electrode materials, and solution temperature); and studying hydrogen production from non-aqueous solutions. This review provides a comprehensive framework for future investigation in this evolving field.
本综述综合了超声（US）辅助及超声混合制氢工艺的最新进展，重点关注超声电化学技术。它总结了近期的研究成果，讨论了现存的限制因素，并提出了进一步发展的可行途径。超声混合工艺，包括超声电催化技术及其他超声辅助方法，在提高制氢效率和降低所需能量方面展现出巨大潜力。本文强调了超声如何加速电化学过程、改善传质并降低过电位。超声通过降低电池电压和过电位，同时提高整体能量效率，增强了超声电催化过程的物理和化学参数。其他超声混合工艺，如声催化和超声光催化，已证明利用超声激活催化剂并提高氢气产量的潜力。尽管取得了这些进展，但仍存在困难，如增进对超声增强制氢背后机制的理解；优化操作条件（如频率、声功率、电极材料和溶液温度）；以及研究非水溶液制氢。本综述为这一不断发展的领域的未来研究提供了一个全面的框架。
