Investigating the factors that influence resistance rise of PIM-1 membranes in nonaqueous electrolytes
© 2019 The Authors As redox active macromolecules are introduced to the materials repertoire of redox flow batteries (RFBs), nanoporous membranes, such as polymers of intrinsic microporosity (PIMs), are emerging as a viable separation strategy. Although their selectivity has been demonstrated, PIM-b...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Elsevier BV
2021
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| Online Access: | https://hdl.handle.net/1721.1/136446 |
| _version_ | 1811068469855125504 |
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| author | Gigli, Matteo Kowalski, Jeffrey A Neyhouse, Bertrand J D'Epifanio, Alessandra Brushett, Fikile R Licoccia, Silvia |
| author2 | Massachusetts Institute of Technology. Department of Chemical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Chemical Engineering Gigli, Matteo Kowalski, Jeffrey A Neyhouse, Bertrand J D'Epifanio, Alessandra Brushett, Fikile R Licoccia, Silvia |
| author_sort | Gigli, Matteo |
| collection | MIT |
| description | © 2019 The Authors As redox active macromolecules are introduced to the materials repertoire of redox flow batteries (RFBs), nanoporous membranes, such as polymers of intrinsic microporosity (PIMs), are emerging as a viable separation strategy. Although their selectivity has been demonstrated, PIM-based membranes suffer from time-dependent resistance rise in nonaqueous electrolytes. Here, we study this phenomenon as a function of membrane thickness, electrolyte flow rate, and solvent washing using a diagnostic flow cell configuration. We find that the rate and magnitude of resistance rise can be significantly reduced through the combination of low electrolyte flow rate and solvent prewash. Further, our results indicate that, since the increase is not associated with irreversible chemical and structural changes, the membrane performance can be recovered via ex-situ or in-situ solvent washes. |
| first_indexed | 2024-09-23T07:56:29Z |
| format | Article |
| id | mit-1721.1/136446 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T07:56:29Z |
| publishDate | 2021 |
| publisher | Elsevier BV |
| record_format | dspace |
| spelling | mit-1721.1/1364462023-02-17T19:48:53Z Investigating the factors that influence resistance rise of PIM-1 membranes in nonaqueous electrolytes Gigli, Matteo Kowalski, Jeffrey A Neyhouse, Bertrand J D'Epifanio, Alessandra Brushett, Fikile R Licoccia, Silvia Massachusetts Institute of Technology. Department of Chemical Engineering © 2019 The Authors As redox active macromolecules are introduced to the materials repertoire of redox flow batteries (RFBs), nanoporous membranes, such as polymers of intrinsic microporosity (PIMs), are emerging as a viable separation strategy. Although their selectivity has been demonstrated, PIM-based membranes suffer from time-dependent resistance rise in nonaqueous electrolytes. Here, we study this phenomenon as a function of membrane thickness, electrolyte flow rate, and solvent washing using a diagnostic flow cell configuration. We find that the rate and magnitude of resistance rise can be significantly reduced through the combination of low electrolyte flow rate and solvent prewash. Further, our results indicate that, since the increase is not associated with irreversible chemical and structural changes, the membrane performance can be recovered via ex-situ or in-situ solvent washes. 2021-10-27T20:35:24Z 2021-10-27T20:35:24Z 2019 2021-06-09T14:46:57Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/136446 en 10.1016/J.ELECOM.2019.106530 Electrochemistry Communications Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier BV Elsevier |
| spellingShingle | Gigli, Matteo Kowalski, Jeffrey A Neyhouse, Bertrand J D'Epifanio, Alessandra Brushett, Fikile R Licoccia, Silvia Investigating the factors that influence resistance rise of PIM-1 membranes in nonaqueous electrolytes |
| title | Investigating the factors that influence resistance rise of PIM-1 membranes in nonaqueous electrolytes |
| title_full | Investigating the factors that influence resistance rise of PIM-1 membranes in nonaqueous electrolytes |
| title_fullStr | Investigating the factors that influence resistance rise of PIM-1 membranes in nonaqueous electrolytes |
| title_full_unstemmed | Investigating the factors that influence resistance rise of PIM-1 membranes in nonaqueous electrolytes |
| title_short | Investigating the factors that influence resistance rise of PIM-1 membranes in nonaqueous electrolytes |
| title_sort | investigating the factors that influence resistance rise of pim 1 membranes in nonaqueous electrolytes |
| url | https://hdl.handle.net/1721.1/136446 |
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