The Impact of CO2 Regeneration Positions on Electrochemical CO2 Reduction
Implementing electrochemical CO2 reduction can decarbonize practical chemical and fuel production. However, in a typical CO2 electrolyzer, electrochemical CO2 capture (i.e., CO2 reacts with electrochemically produced OH− to form (bi)carbonates that are subsequently regenerated to CO2 by the H+ flux...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-08-01
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| Series: | ChemElectroChem |
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| Online Access: | https://doi.org/10.1002/celc.202500200 |
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| author | Zhuo Chen Yuesheng Zhang Huiying Deng Yuhang Wang |
| author_facet | Zhuo Chen Yuesheng Zhang Huiying Deng Yuhang Wang |
| author_sort | Zhuo Chen |
| collection | DOAJ |
| description | Implementing electrochemical CO2 reduction can decarbonize practical chemical and fuel production. However, in a typical CO2 electrolyzer, electrochemical CO2 capture (i.e., CO2 reacts with electrochemically produced OH− to form (bi)carbonates that are subsequently regenerated to CO2 by the H+ flux in the reactor) commences in parallel with its electroreduction. Such a phenomenon is observed in various electrolyzer configurations with different electrolyte compositions. This concept begins with a brief discussion on how CO2 capture occurs in CO2 electrolyzers and focuses on the impact of CO2 regeneration locations, including the anode, the electrolyte, and the ion‐exchange membrane, on CO2 electrolysis performance. It is shown that the key to overcoming the low CO2 utilization and operational lifetime is positioning CO2 regeneration on ion‐exchange membranes. The goal is to highlight the essential role of the ion flow management approach in designing high‐performance CO2 electrolyzers. It would contribute to commercializing CO2 electrolyzers for carbon‐neutral chemical synthesis. |
| format | Article |
| id | doaj-art-82bef64f35614d5f971f651671e67c21 |
| institution | Kabale University |
| issn | 2196-0216 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemElectroChem |
| spelling | doaj-art-82bef64f35614d5f971f651671e67c212025-08-21T07:07:36ZengWiley-VCHChemElectroChem2196-02162025-08-011216n/an/a10.1002/celc.202500200The Impact of CO2 Regeneration Positions on Electrochemical CO2 ReductionZhuo Chen0Yuesheng Zhang1Huiying Deng2Yuhang Wang3State Key Laboratory of Bioinspired Interfacial Materials Science Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University 199 Ren'ai Road Suzhou Jiangsu 215123 ChinaState Key Laboratory of Bioinspired Interfacial Materials Science Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University 199 Ren'ai Road Suzhou Jiangsu 215123 ChinaState Key Laboratory of Bioinspired Interfacial Materials Science Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University 199 Ren'ai Road Suzhou Jiangsu 215123 ChinaState Key Laboratory of Bioinspired Interfacial Materials Science Institute of Functional Nano & Soft Materials (FUNSOM) Soochow University 199 Ren'ai Road Suzhou Jiangsu 215123 ChinaImplementing electrochemical CO2 reduction can decarbonize practical chemical and fuel production. However, in a typical CO2 electrolyzer, electrochemical CO2 capture (i.e., CO2 reacts with electrochemically produced OH− to form (bi)carbonates that are subsequently regenerated to CO2 by the H+ flux in the reactor) commences in parallel with its electroreduction. Such a phenomenon is observed in various electrolyzer configurations with different electrolyte compositions. This concept begins with a brief discussion on how CO2 capture occurs in CO2 electrolyzers and focuses on the impact of CO2 regeneration locations, including the anode, the electrolyte, and the ion‐exchange membrane, on CO2 electrolysis performance. It is shown that the key to overcoming the low CO2 utilization and operational lifetime is positioning CO2 regeneration on ion‐exchange membranes. The goal is to highlight the essential role of the ion flow management approach in designing high‐performance CO2 electrolyzers. It would contribute to commercializing CO2 electrolyzers for carbon‐neutral chemical synthesis.https://doi.org/10.1002/celc.202500200CO2 captureCO2 electrolysisCO2 regenerationion flowmembrane engineering |
| spellingShingle | Zhuo Chen Yuesheng Zhang Huiying Deng Yuhang Wang The Impact of CO2 Regeneration Positions on Electrochemical CO2 Reduction ChemElectroChem CO2 capture CO2 electrolysis CO2 regeneration ion flow membrane engineering |
| title | The Impact of CO2 Regeneration Positions on Electrochemical CO2 Reduction |
| title_full | The Impact of CO2 Regeneration Positions on Electrochemical CO2 Reduction |
| title_fullStr | The Impact of CO2 Regeneration Positions on Electrochemical CO2 Reduction |
| title_full_unstemmed | The Impact of CO2 Regeneration Positions on Electrochemical CO2 Reduction |
| title_short | The Impact of CO2 Regeneration Positions on Electrochemical CO2 Reduction |
| title_sort | impact of co2 regeneration positions on electrochemical co2 reduction |
| topic | CO2 capture CO2 electrolysis CO2 regeneration ion flow membrane engineering |
| url | https://doi.org/10.1002/celc.202500200 |
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