Scalability of nanopore osmotic energy conversion
Abstract Artificial nanofluidic networks are emerging systems for blue energy conversion that leverages surface charge‐derived permselectivity to induce voltage from diffusive ion transport under salinity difference. Here the pivotal significance of electrostatic inter‐channel couplings in multi‐nan...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-04-01
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| Series: | Exploration |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/EXP.20220110 |
| _version_ | 1827278647883464704 |
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| author | Makusu Tsutsui Wei‐Lun Hsu Kazumichi Yokota Iat Wai Leong Hirofumi Daiguji Tomoji Kawai |
| author_facet | Makusu Tsutsui Wei‐Lun Hsu Kazumichi Yokota Iat Wai Leong Hirofumi Daiguji Tomoji Kawai |
| author_sort | Makusu Tsutsui |
| collection | DOAJ |
| description | Abstract Artificial nanofluidic networks are emerging systems for blue energy conversion that leverages surface charge‐derived permselectivity to induce voltage from diffusive ion transport under salinity difference. Here the pivotal significance of electrostatic inter‐channel couplings in multi‐nanopore membranes, which impose constraints on porosity and subsequently influence the generation of large osmotic power outputs, is illustrated. Constructive interference is observed between two 20 nm nanopores of 30 nm spacing that renders enhanced permselectivity to osmotic power output via the recovered electroneutrality. On contrary, the interference is revealed as destructive in two‐dimensional arrays causing significant deteriorations of the ion selectivity even for the nanopores sparsely distributed at an order of magnitude larger spacing than the Dukhin length. Most importantly, a scaling law is provided for deducing the maximal membrane area and porosity to avoid the selectivity loss via the inter‐pore electrostatic coupling. As the electric crosstalk is inevitable in any fluidic network, the present findings can be a useful guide to design nanoporous membranes for scalable osmotic power generations. |
| first_indexed | 2024-04-24T08:04:40Z |
| format | Article |
| id | doaj.art-233ff545652b403684bac72a59e17317 |
| institution | Directory Open Access Journal |
| issn | 2766-8509 2766-2098 |
| language | English |
| last_indexed | 2024-04-24T08:04:40Z |
| publishDate | 2024-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Exploration |
| spelling | doaj.art-233ff545652b403684bac72a59e173172024-04-17T12:18:39ZengWileyExploration2766-85092766-20982024-04-0142n/an/a10.1002/EXP.20220110Scalability of nanopore osmotic energy conversionMakusu Tsutsui0Wei‐Lun Hsu1Kazumichi Yokota2Iat Wai Leong3Hirofumi Daiguji4Tomoji Kawai5The Institute of Scientific and Industrial Research Osaka University Ibaraki Osaka JapanDepartment of Mechanical Engineering The University of Tokyo Bunkyo‐ku Tokyo JapanHealth and Medical Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Takamatsu Kagawa JapanThe Institute of Scientific and Industrial Research Osaka University Ibaraki Osaka JapanDepartment of Mechanical Engineering The University of Tokyo Bunkyo‐ku Tokyo JapanThe Institute of Scientific and Industrial Research Osaka University Ibaraki Osaka JapanAbstract Artificial nanofluidic networks are emerging systems for blue energy conversion that leverages surface charge‐derived permselectivity to induce voltage from diffusive ion transport under salinity difference. Here the pivotal significance of electrostatic inter‐channel couplings in multi‐nanopore membranes, which impose constraints on porosity and subsequently influence the generation of large osmotic power outputs, is illustrated. Constructive interference is observed between two 20 nm nanopores of 30 nm spacing that renders enhanced permselectivity to osmotic power output via the recovered electroneutrality. On contrary, the interference is revealed as destructive in two‐dimensional arrays causing significant deteriorations of the ion selectivity even for the nanopores sparsely distributed at an order of magnitude larger spacing than the Dukhin length. Most importantly, a scaling law is provided for deducing the maximal membrane area and porosity to avoid the selectivity loss via the inter‐pore electrostatic coupling. As the electric crosstalk is inevitable in any fluidic network, the present findings can be a useful guide to design nanoporous membranes for scalable osmotic power generations.https://doi.org/10.1002/EXP.20220110interpore interactionsion selectivitymultiporeosmotic powerreverse electrodialysis |
| spellingShingle | Makusu Tsutsui Wei‐Lun Hsu Kazumichi Yokota Iat Wai Leong Hirofumi Daiguji Tomoji Kawai Scalability of nanopore osmotic energy conversion Exploration interpore interactions ion selectivity multipore osmotic power reverse electrodialysis |
| title | Scalability of nanopore osmotic energy conversion |
| title_full | Scalability of nanopore osmotic energy conversion |
| title_fullStr | Scalability of nanopore osmotic energy conversion |
| title_full_unstemmed | Scalability of nanopore osmotic energy conversion |
| title_short | Scalability of nanopore osmotic energy conversion |
| title_sort | scalability of nanopore osmotic energy conversion |
| topic | interpore interactions ion selectivity multipore osmotic power reverse electrodialysis |
| url | https://doi.org/10.1002/EXP.20220110 |
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