Advancements in hydrogen production using alkaline electrolysis systems: A short review on experimental and simulation studies

IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Current Opinion in Electrochemistry Pub Date : 2024-06-08 DOI:10.1016/j.coelec.2024.101552
Lucía Paula Campo Schneider , Maryem Dhrioua , Dirk Ullmer , Franz Egert , Hans Julian Wiggenhauser , Kamal Ghotia , Nicolas Kawerau , Davide Grilli , Fatemeh Razmjooei , Syed Asif Ansar
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Abstract

Although alkaline water electrolysis (AWE) is a highly mature technology for hydrogen production, its potential is hindered by relatively low efficiencies at high current densities. On the other hand, to conform with “RePowerEU” directives, coupling electrolyzers with new renewable energy sources (RES) is highly demanded. However, integrating fluctuating RES poses challenges for the AWE due to increasing gas impurity as the current density decreases. Herein, we revised the most promising recent developments in materials, cell design, and system integration aimed at conquering the aforementioned challenges. It is shown that the implementation of advanced components and control strategies, e.g. electrolyte management, is vital to enhance the efficiency at high current densities and expand the load range of operation by maintaining the high gas purity.

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利用碱性电解系统制氢的进展:实验和模拟研究简评
尽管碱性水电解法(AWE)是一项非常成熟的制氢技术,但其潜力却因高电流密度下相对较低的效率而受到阻碍。另一方面,为了符合 "RePowerEU "指令,将电解槽与新的可再生能源(RES)结合起来的要求很高。然而,由于气体杂质会随着电流密度的降低而增加,整合波动的可再生能源给 AWE 带来了挑战。在此,我们对材料、电池设计和系统集成方面最有前景的最新发展进行了修订,旨在克服上述挑战。研究表明,实施先进的组件和控制策略(如电解质管理)对于提高高电流密度下的效率以及通过保持高气体纯度来扩大运行负载范围至关重要。
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来源期刊
Current Opinion in Electrochemistry
Current Opinion in Electrochemistry Chemistry-Analytical Chemistry
CiteScore
14.00
自引率
5.90%
发文量
272
审稿时长
73 days
期刊介绍: The development of the Current Opinion journals stemmed from the acknowledgment of the growing challenge for specialists to stay abreast of the expanding volume of information within their field. In Current Opinion in Electrochemistry, they help the reader by providing in a systematic manner: 1.The views of experts on current advances in electrochemistry in a clear and readable form. 2.Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications. In the realm of electrochemistry, the subject is divided into 12 themed sections, with each section undergoing an annual review cycle: • Bioelectrochemistry • Electrocatalysis • Electrochemical Materials and Engineering • Energy Storage: Batteries and Supercapacitors • Energy Transformation • Environmental Electrochemistry • Fundamental & Theoretical Electrochemistry • Innovative Methods in Electrochemistry • Organic & Molecular Electrochemistry • Physical & Nano-Electrochemistry • Sensors & Bio-sensors •
期刊最新文献
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