Controlling ion transport with pattern structures on ion exchange membranes in electrodialysis
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Joonhyeon | - |
dc.contributor.author | Kim, Sangha | - |
dc.contributor.author | Kwak, Rhokyun | - |
dc.date.accessioned | 2021-08-02T08:26:48Z | - |
dc.date.available | 2021-08-02T08:26:48Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2021-02 | - |
dc.identifier.issn | 0011-9164 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/8002 | - |
dc.description.abstract | In electrodialysis (ED), ion transport through ion exchange membranes governs its desalination performance. In this paper, we decipher the effects of non-conductive pattern structures on the membrane in ED and identify two factors to control conductive/convective ion transports: i) electric "view factor" (deduced from the analogy of view factor of radiative heat flux) representing the possibility of ion conduction, and ii) vortex intensity representing the strength of ion convection. To do this, we build a two-dimensional ED platform with six different pattern structures on the membrane, and then visualize in situ ion concentration and fluid flow over these patterns in Ohmic, limiting, and overlimiting current regimes. In the Ohmic-limiting regime (V 2 V), the electric view factor determines current, Ohmic conductance, and salt removal. In the overlimiting regime (V 2 V), electroconvection (EC) occurs on the membranes, so the vortex intensity of EC determines current and salt removal. Moreover, overlimiting conductance can be predicted by the density of this vortex intensity. Lastly, taken together, we develop new scaling law for the electric Nusselt number, which presents the degree of ion convection vs. ion conduction, as a function of the pattern shape and EC strength. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.title | Controlling ion transport with pattern structures on ion exchange membranes in electrodialysis | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kwak, Rhokyun | - |
dc.identifier.doi | 10.1016/j.desal.2020.114801 | - |
dc.identifier.scopusid | 2-s2.0-85095782853 | - |
dc.identifier.wosid | 000596028900008 | - |
dc.identifier.bibliographicCitation | DESALINATION, v.499, pp.1 - 10 | - |
dc.relation.isPartOf | DESALINATION | - |
dc.citation.title | DESALINATION | - |
dc.citation.volume | 499 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 10 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Water Resources | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.relation.journalWebOfScienceCategory | Water Resources | - |
dc.subject.keywordPlus | SPACER-FILLED CHANNELS | - |
dc.subject.keywordPlus | OF-THE-ART | - |
dc.subject.keywordPlus | REVERSE-ELECTRODIALYSIS | - |
dc.subject.keywordPlus | MASS-TRANSFER | - |
dc.subject.keywordPlus | DESALINATION | - |
dc.subject.keywordPlus | ELECTROCONVECTION | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | SYSTEMS | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordAuthor | Electrodialysis | - |
dc.subject.keywordAuthor | Electroconvection | - |
dc.subject.keywordAuthor | Spacer | - |
dc.subject.keywordAuthor | Ion exchange membrane | - |
dc.subject.keywordAuthor | Patterned membrane | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S001191642031479X?via%3Dihub | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea+82-2-2220-1365
COPYRIGHT © 2021 HANYANG UNIVERSITY.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.