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dc.contributor.authorJiang, Jiafei
dc.contributor.authorTang, Jing
dc.contributor.authorAl-Anzi, Bader
dc.contributor.authorHan, Jongyoon
dc.contributor.authorLi, Zirui
dc.date.accessioned2022-06-30T15:49:23Z
dc.date.available2022-06-30T15:49:23Z
dc.date.issued2021
dc.identifier.urihttps://hdl.handle.net/1721.1/143610
dc.description.abstractIon selective membrane (ISM) is widely used in electrochemical engineering and micro-fluidic processes, yet accurate modeling of the ISM is still challenging due to many scientific issues. So far, assumptions on the "ideal ISM"have been used in most simulation studies involving ion transport and electrokinetic flow in ion concentration polarization systems, but the validity or accuracy of those assumptions has never been investigated. In this paper, using a two-dimensional nanochannel system with practical significance, we verify the validity of the ideal ISM model by making comparisons between the idealized ISM system and a more realistic permselective nanochannel system in terms of simplifications over the electrical potential, counter-ion concentration, and zero co-ion flux. Our results show that the simplifications of fixed voltage and fixed counter-ion concentration in the ideal ISM model are largely accurate in most situations, especially under high applied voltage and/or with high charge density inside the ISM. However, zero co-ion flux simplification is not exactly accurate in most occasions. Significant errors may be incurred by the zero co-ion flux assumption when steady state solutions are sought using the ISM model. Some discussions over the influences of structures of the nanochannel system are also added. The obtained results will help in obtaining detailed understanding of the transport features inside the nanoporous ISM, especially when the comparison between simulation and experimental data is necessary.en_US
dc.language.isoen
dc.publisherAIP Publishingen_US
dc.relation.isversionof10.1063/5.0037961en_US
dc.rightsCreative Commons Attribution 4.0 International licenseen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.sourceAmerican Institute of Physics (AIP)en_US
dc.titleOn the validity of ion selective membrane simplification in concentration polarizationen_US
dc.typeArticleen_US
dc.identifier.citationJiang, Jiafei, Tang, Jing, Al-Anzi, Bader, Han, Jongyoon and Li, Zirui. 2021. "On the validity of ion selective membrane simplification in concentration polarization." AIP Advances, 11 (3).
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
dc.relation.journalAIP Advancesen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2022-06-30T15:31:54Z
dspace.orderedauthorsJiang, J; Tang, J; Al-Anzi, B; Han, J; Li, Zen_US
dspace.date.submission2022-06-30T15:31:58Z
mit.journal.volume11en_US
mit.journal.issue3en_US
mit.licensePUBLISHER_CC
mit.metadata.statusAuthority Work and Publication Information Neededen_US


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