Hybrid energy harvesting enabled by a covalent organic framework membrane
The integration of water and thermal energy harvesting presents a promising solution to the intermittency issues associated with individual energy sources. In this study, we show a covalent organic framework (COF) membrane featuring subnanometer, one-dimensional ionic channels, which demonstrate rem...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2025-01-01
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| Series: | Advanced Membranes |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772823425000041 |
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| author | Jiaming Yi Zhuozhi Lai Qing Guo Zhiwei Xing Qi Sun |
| author_facet | Jiaming Yi Zhuozhi Lai Qing Guo Zhiwei Xing Qi Sun |
| author_sort | Jiaming Yi |
| collection | DOAJ |
| description | The integration of water and thermal energy harvesting presents a promising solution to the intermittency issues associated with individual energy sources. In this study, we show a covalent organic framework (COF) membrane featuring subnanometer, one-dimensional ionic channels, which demonstrate remarkable stability in both acidic and saline environments. The membrane exhibits exceptional permselectivity across various electrolyte solutions, enabling efficient osmotic energy harvesting from proton gradients via reverse electrodialysis. Under a 50-fold concentration gradient of H2SO4, the membrane achieved a peak output power density of 97.1 W m−2. Furthermore, the membrane facilitates thermo-osmotic energy conversion by selectively screening ionic charges driven by combined salinity and temperature gradients. Under simulated estuarine salinity conditions and a 30 K temperature gradient, the COF membrane achieved a maximum output power density of 91.4 W m−2—an 18-fold increase compared to the commercial benchmark (5 W m−2). This study underscores the significant potential of COF membranes for efficient energy conversion, enabling the effective harvesting of untapped osmotic and low-grade heat energy. |
| format | Article |
| id | doaj-art-fe42b2cf67fa4e1a8d2fc4213fd9c10a |
| institution | Kabale University |
| issn | 2772-8234 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Advanced Membranes |
| spelling | doaj-art-fe42b2cf67fa4e1a8d2fc4213fd9c10a2025-01-31T05:12:48ZengKeAi Communications Co. Ltd.Advanced Membranes2772-82342025-01-015100130Hybrid energy harvesting enabled by a covalent organic framework membraneJiaming Yi0Zhuozhi Lai1Qing Guo2Zhiwei Xing3Qi Sun4Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, ChinaZhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, ChinaZhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, ChinaZhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, ChinaCorresponding author.; Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, ChinaThe integration of water and thermal energy harvesting presents a promising solution to the intermittency issues associated with individual energy sources. In this study, we show a covalent organic framework (COF) membrane featuring subnanometer, one-dimensional ionic channels, which demonstrate remarkable stability in both acidic and saline environments. The membrane exhibits exceptional permselectivity across various electrolyte solutions, enabling efficient osmotic energy harvesting from proton gradients via reverse electrodialysis. Under a 50-fold concentration gradient of H2SO4, the membrane achieved a peak output power density of 97.1 W m−2. Furthermore, the membrane facilitates thermo-osmotic energy conversion by selectively screening ionic charges driven by combined salinity and temperature gradients. Under simulated estuarine salinity conditions and a 30 K temperature gradient, the COF membrane achieved a maximum output power density of 91.4 W m−2—an 18-fold increase compared to the commercial benchmark (5 W m−2). This study underscores the significant potential of COF membranes for efficient energy conversion, enabling the effective harvesting of untapped osmotic and low-grade heat energy.http://www.sciencedirect.com/science/article/pii/S2772823425000041Covalent organic framework membraneLow-grade heatOsmotic energy conversionIon separationWaste utilization |
| spellingShingle | Jiaming Yi Zhuozhi Lai Qing Guo Zhiwei Xing Qi Sun Hybrid energy harvesting enabled by a covalent organic framework membrane Advanced Membranes Covalent organic framework membrane Low-grade heat Osmotic energy conversion Ion separation Waste utilization |
| title | Hybrid energy harvesting enabled by a covalent organic framework membrane |
| title_full | Hybrid energy harvesting enabled by a covalent organic framework membrane |
| title_fullStr | Hybrid energy harvesting enabled by a covalent organic framework membrane |
| title_full_unstemmed | Hybrid energy harvesting enabled by a covalent organic framework membrane |
| title_short | Hybrid energy harvesting enabled by a covalent organic framework membrane |
| title_sort | hybrid energy harvesting enabled by a covalent organic framework membrane |
| topic | Covalent organic framework membrane Low-grade heat Osmotic energy conversion Ion separation Waste utilization |
| url | http://www.sciencedirect.com/science/article/pii/S2772823425000041 |
| work_keys_str_mv | AT jiamingyi hybridenergyharvestingenabledbyacovalentorganicframeworkmembrane AT zhuozhilai hybridenergyharvestingenabledbyacovalentorganicframeworkmembrane AT qingguo hybridenergyharvestingenabledbyacovalentorganicframeworkmembrane AT zhiweixing hybridenergyharvestingenabledbyacovalentorganicframeworkmembrane AT qisun hybridenergyharvestingenabledbyacovalentorganicframeworkmembrane |