Bubble evolution dynamics in alkaline water electrolysis
It is anticipated that alkaline water electrolysis (AWE) technology will assume a significant role in the future energy sector, facilitating the integration of renewable energy and hydrogen production. Regrettably, the efficiency of AWE is not yet optimal. In particular, the inefficiency caused by b...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2025-07-01
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| Series: | eScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667141724001526 |
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| author | Lingao Deng Liming Jin Luyu Yang Chenchen Feng An Tao Xianlin Jia Zhen Geng Cunman Zhang Xiangzhi Cui Jianlin Shi |
| author_facet | Lingao Deng Liming Jin Luyu Yang Chenchen Feng An Tao Xianlin Jia Zhen Geng Cunman Zhang Xiangzhi Cui Jianlin Shi |
| author_sort | Lingao Deng |
| collection | DOAJ |
| description | It is anticipated that alkaline water electrolysis (AWE) technology will assume a significant role in the future energy sector, facilitating the integration of renewable energy and hydrogen production. Regrettably, the efficiency of AWE is not yet optimal. In particular, the inefficiency caused by bubbles at increased current density is often overlooked, necessitating a detailed understanding of the intricate relationship between bubble evolution and electrolytic reactions. This paper presents a comprehensive review of the fundamental theory and recent research on bubbles, and outlines the primary challenges and research directions for bubble dynamics in AWE. First, the theory of bubble nucleation, growth, and detachment is reviewed and summarized. Subsequently, the impact of bubbles on the diverse processes occurring during the electrolysis reaction is meticulously delineated and examined. The following section presents a thorough compilation and categorization of the methods employed to remove bubbles, with a detailed analysis of the strategies deployed to mitigate the impact of gas bubble traffic. Additionally, an in-depth exploration of the research methodology employed at each stage of the bubble evolution process is provided. Finally, the review concludes with a summary and outlook on the opportunities and challenges associated with studying bubble dynamics in AWE, offering insights into innovative avenues for efficient electrolytic hydrogen production. |
| format | Article |
| id | doaj-art-3ba1f6284a724b548869cd3f2693ccd0 |
| institution | DOAJ |
| issn | 2667-1417 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | eScience |
| spelling | doaj-art-3ba1f6284a724b548869cd3f2693ccd02025-08-20T02:39:59ZengKeAi Communications Co. Ltd.eScience2667-14172025-07-015410035310.1016/j.esci.2024.100353Bubble evolution dynamics in alkaline water electrolysisLingao Deng0Liming Jin1Luyu Yang2Chenchen Feng3An Tao4Xianlin Jia5Zhen Geng6Cunman Zhang7Xiangzhi Cui8Jianlin Shi9School of Automotive Studies and Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, ChinaSchool of Automotive Studies and Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China; Corresponding author.School of Automotive Studies and Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, ChinaSchool of Automotive Studies and Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, ChinaPowerChina Huadong Engineering Corporation Limited, Hangzhou 311100, ChinaPowerChina Huadong Engineering Corporation Limited, Hangzhou 311100, ChinaSchool of Automotive Studies and Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, ChinaSchool of Automotive Studies and Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China; Corresponding author.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; Corresponding author.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, ChinaIt is anticipated that alkaline water electrolysis (AWE) technology will assume a significant role in the future energy sector, facilitating the integration of renewable energy and hydrogen production. Regrettably, the efficiency of AWE is not yet optimal. In particular, the inefficiency caused by bubbles at increased current density is often overlooked, necessitating a detailed understanding of the intricate relationship between bubble evolution and electrolytic reactions. This paper presents a comprehensive review of the fundamental theory and recent research on bubbles, and outlines the primary challenges and research directions for bubble dynamics in AWE. First, the theory of bubble nucleation, growth, and detachment is reviewed and summarized. Subsequently, the impact of bubbles on the diverse processes occurring during the electrolysis reaction is meticulously delineated and examined. The following section presents a thorough compilation and categorization of the methods employed to remove bubbles, with a detailed analysis of the strategies deployed to mitigate the impact of gas bubble traffic. Additionally, an in-depth exploration of the research methodology employed at each stage of the bubble evolution process is provided. Finally, the review concludes with a summary and outlook on the opportunities and challenges associated with studying bubble dynamics in AWE, offering insights into innovative avenues for efficient electrolytic hydrogen production.http://www.sciencedirect.com/science/article/pii/S2667141724001526Alkaline water electrolysisBubble evolution dynamicsMass transferPorous electrode engineering |
| spellingShingle | Lingao Deng Liming Jin Luyu Yang Chenchen Feng An Tao Xianlin Jia Zhen Geng Cunman Zhang Xiangzhi Cui Jianlin Shi Bubble evolution dynamics in alkaline water electrolysis eScience Alkaline water electrolysis Bubble evolution dynamics Mass transfer Porous electrode engineering |
| title | Bubble evolution dynamics in alkaline water electrolysis |
| title_full | Bubble evolution dynamics in alkaline water electrolysis |
| title_fullStr | Bubble evolution dynamics in alkaline water electrolysis |
| title_full_unstemmed | Bubble evolution dynamics in alkaline water electrolysis |
| title_short | Bubble evolution dynamics in alkaline water electrolysis |
| title_sort | bubble evolution dynamics in alkaline water electrolysis |
| topic | Alkaline water electrolysis Bubble evolution dynamics Mass transfer Porous electrode engineering |
| url | http://www.sciencedirect.com/science/article/pii/S2667141724001526 |
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