A review on the integration of ultrasonication in hybrid systems for enhanced hydrogen yield

IF 9.7 1区 化学 Q1 ACOUSTICS
Slimane Merouani , Aissa Dehane , Oualid Hamdaoui
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引用次数: 0

Abstract

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.
超声在混合系统中集成提高产氢率的研究进展
本文综述了超声/辅助和超声/混合制氢工艺的最新进展,重点介绍了超声/电化学技术。它总结了最近的发现,讨论了现有的制约因素,并提出了进一步发展的有希望的途径。美国/混合工艺,包括美国/电催化技术和其他美国辅助的方法,在提高效率和减少制氢所需的能量方面显示出很大的希望。本文着重介绍了超声波如何加速电化学过程,改善传质,降低过电位。超声波通过降低电池电压和过电位来提高US/电催化过程的物理和化学参数,同时提高整体能源效率。其他超声波混合工艺,如声催化和光催化,已经证明了使用超声波激活催化剂和提高氢气产量的潜力。尽管取得了这些进展,但困难仍然存在,例如提高对美国增强制氢机制的理解;优化操作条件(例如,频率、声功率、电极材料和溶液温度);研究非水溶液中氢气的生成。这篇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。
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来源期刊
Ultrasonics Sonochemistry
Ultrasonics Sonochemistry 化学-化学综合
CiteScore
15.80
自引率
11.90%
发文量
361
审稿时长
59 days
期刊介绍: Ultrasonics Sonochemistry stands as a premier international journal dedicated to the publication of high-quality research articles primarily focusing on chemical reactions and reactors induced by ultrasonic waves, known as sonochemistry. Beyond chemical reactions, the journal also welcomes contributions related to cavitation-induced events and processing, including sonoluminescence, and the transformation of materials on chemical, physical, and biological levels. Since its inception in 1994, Ultrasonics Sonochemistry has consistently maintained a top ranking in the "Acoustics" category, reflecting its esteemed reputation in the field. The journal publishes exceptional papers covering various areas of ultrasonics and sonochemistry. Its contributions are highly regarded by both academia and industry stakeholders, demonstrating its relevance and impact in advancing research and innovation.
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