Exploring and understanding the internal voltage losses through catalyst layers in proton exchange membrane water electrolysis devices
文献类型：期刊论文
| 作者 | Kang, Zhenye2; Wang, Hao3; Liu, Yanrong3; Mo, Jingke1; Wang, Min4; Li, Jing2; Tian, Xinlong2 |
| 刊名 | Applied Energy
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 317 |
| ISSN号 | 3062619 |
| 关键词 | Catalysts - Cathodes - Digital storage - Ohmic contacts - Electrolysis |
| DOI | 10.1016/j.apenergy.2022.119213 |
| 英文摘要 | Proton exchange membrane water electrolysis (PEMWE) technology has been regarded as one of the most promising ways to fulfill a sustainable energy system when coupled with renewable energies. Understanding the working mechanisms and losses in PEMWE devices is critical for achieving the desired performance and durability that targets wide commercial applications. This work demonstrates a novel four-wire sensing technique for acquiring the internal voltage losses in an operating PEMWE cell, which deconvolutes the total cell voltage into five parts. Most importantly, the ohmic resistances on anode and cathode catalyst layers are in-situ and operando measured. The two catalyst layer resistances show completely different values and trends under the same operating conditions, which is mainly due to the electrical conductivity difference between the two layers. The ohmic resistance of the anode catalyst shows an exponential decay with current density, which is in accordance with previously published visualization results, and shows a dependency on temperature; while the ohmic resistance of the cathode catalyst layer is a constant and not related to operating conditions. With the adoption of the technique, a phenomenon in which the ohmic resistance of the anode catalyst changes dynamically during the cell testing is captured and recorded for the first time. These findings provide very valuable data and results for understanding the catalyst layer working mechanisms, and also help to optimize the future catalyst layer. The four-wire sensing technique developed in this study is a promising tool for diagnosis, analysis, and optimization not only for PEMWE devices, but also potentially for other energy storage and conversion devices. 漏 2022 Elsevier Ltd |
| 学科主题 | Anodes |
| 项目编号 | This work was supported by the Hainan Province Science and Technology Special Fund (ZDYF2021GXJS207, ZDYF2020037, 2020207), the National Natural Science Foundation of China (22109034, 11902080), the Scientific Research and Cultivation Project for Young Teachers of Hainan University (RZ2100004464), the Start-up Research Foundation of Hainan University (KYQD(ZR)20008, and KYQD(ZR)21124). |
| 出版者 | Elsevier Ltd |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61307]  |
| 作者单位 | 1.Department of Aeronautics and Astronautics, Fudan University, Shanghai; 200433, China 2.State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou; 570228, China 3.Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 4.Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Guangdong Province, Shenzhen; 518055, China |
| 推荐引用方式 GB/T 7714 | Kang, Zhenye,Wang, Hao,Liu, Yanrong,et al. Exploring and understanding the internal voltage losses through catalyst layers in proton exchange membrane water electrolysis devices[J]. Applied Energy,2022,317. |
| APA | Kang, Zhenye.,Wang, Hao.,Liu, Yanrong.,Mo, Jingke.,Wang, Min.,...&Tian, Xinlong.(2022).Exploring and understanding the internal voltage losses through catalyst layers in proton exchange membrane water electrolysis devices.Applied Energy,317. |
| MLA | Kang, Zhenye,et al."Exploring and understanding the internal voltage losses through catalyst layers in proton exchange membrane water electrolysis devices".Applied Energy 317(2022). |
入库方式： OAI收割
来源：过程工程研究所
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