{"title":"Effects of Cell Configurations and Operating Conditions on Cathode Gas-Phase Products of SO2-Depolarized Electrolyzers","authors":"Luyao Xie, Ru Tian, Peng Xiao, Yongshui Qu, Laijun Wang, Yingxia Li, Ping Zhang, Songzhe Chen","doi":"10.1155/er/7261641","DOIUrl":null,"url":null,"abstract":"<p>The hybrid sulfur (HyS) cycle is a promising process for “green hydrogen” production. As the hydrogen-producing step of HyS cycle, SO<sub>2</sub>-depolarized electrolysis (SDE) has the advantage of very low theoretical cell potential, while crossover of SO<sub>2</sub> and consequent side reactions undermine the purity of hydrogen and the current efficiency. In this study, the cathode gas products are collected and analyzed for SDE cells with different configurations and operated at various conditions. The effects of operating temperature, cell voltage, proton exchange membrane (PEM) thickness, and catalyst loading position on the byproducts and current efficiency are investigated. Optimization of cell configuration and operating parameters has shown promise in enhancing hydrogen purity and current efficiency to higher than 99% and 98%, respectively.</p>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3000,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/7261641","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Energy Research","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1155/er/7261641","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
The hybrid sulfur (HyS) cycle is a promising process for “green hydrogen” production. As the hydrogen-producing step of HyS cycle, SO2-depolarized electrolysis (SDE) has the advantage of very low theoretical cell potential, while crossover of SO2 and consequent side reactions undermine the purity of hydrogen and the current efficiency. In this study, the cathode gas products are collected and analyzed for SDE cells with different configurations and operated at various conditions. The effects of operating temperature, cell voltage, proton exchange membrane (PEM) thickness, and catalyst loading position on the byproducts and current efficiency are investigated. Optimization of cell configuration and operating parameters has shown promise in enhancing hydrogen purity and current efficiency to higher than 99% and 98%, respectively.
期刊介绍：
The International Journal of Energy Research (IJER) is dedicated to providing a multidisciplinary, unique platform for researchers, scientists, engineers, technology developers, planners, and policy makers to present their research results and findings in a compelling manner on novel energy systems and applications. IJER covers the entire spectrum of energy from production to conversion, conservation, management, systems, technologies, etc. We encourage papers submissions aiming at better efficiency, cost improvements, more effective resource use, improved design and analysis, reduced environmental impact, and hence leading to better sustainability.
IJER is concerned with the development and exploitation of both advanced traditional and new energy sources, systems, technologies and applications. Interdisciplinary subjects in the area of novel energy systems and applications are also encouraged. High-quality research papers are solicited in, but are not limited to, the following areas with innovative and novel contents:
-Biofuels and alternatives
-Carbon capturing and storage technologies
-Clean coal technologies
-Energy conversion, conservation and management
-Energy storage
-Energy systems
-Hybrid/combined/integrated energy systems for multi-generation
-Hydrogen energy and fuel cells
-Hydrogen production technologies
-Micro- and nano-energy systems and technologies
-Nuclear energy
-Renewable energies (e.g. geothermal, solar, wind, hydro, tidal, wave, biomass)
-Smart energy system
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