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Discrete and Continuum Analyses of Confinement Effects of an Ionic Liquid on the EDL Structure and the Pressure Acting on the Wall

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dc.contributor.authorYu Dong Yang-
dc.contributor.authorGi Jong Moon-
dc.contributor.authorJung Min Oh-
dc.contributor.authorIn Seok Kang-
dc.date.available2019-05-02T08:09:51Z-
dc.date.created2019-02-18-
dc.date.issued2019-01-
dc.identifier.issn1932-7447-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/5752-
dc.description.abstractWe use both molecular dynamics (MD) and continuum models to analyze the electric double layer structure and pressure acting on the wall of a symmetrically valenced ionic liquid in a nanoconfinement. The nanoslit width varies from 20 times ion size to an ion size, in which the Bazant, Storey, and Kornyshev model may not be compatible. However, the comparison with the MD model shows that the continuum model can successfully predict the averaged charge density and decay of the pressure. The continuum model also shows the exact location of the first and second layer of ions from the confinement wall when considering both steric and correlation effects. However, the continuum model does not account for the oscillatory behaviors of the ion density and the pressure due to the typical characteristics of ionic discreteness, and it slightly overestimates the counterion concentrations compared with the MD analysis. In conclusion, the continuum model can be used to estimate the overall tendency of the pressure acting on the wall when ionic liquid is confined in nanometer thickness, though the oscillatory behavior of the pressure, which originates from the discreteness of ions, cannot be predicted exactly. It can provide useful information in designing nanoporous structures for various electrochemical applications. © Copyright 2019 American Chemical Society-
dc.description.uri1-
dc.language영어-
dc.publisherAMER CHEMICAL SOC-
dc.titleDiscrete and Continuum Analyses of Confinement Effects of an Ionic Liquid on the EDL Structure and the Pressure Acting on the Wall-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000457816600052-
dc.identifier.scopusid2-s2.0-85060960563-
dc.identifier.rimsid67034-
dc.contributor.affiliatedAuthorJung Min Oh-
dc.identifier.doi10.1021/acs.jpcc.8b09630-
dc.identifier.bibliographicCitationJOURNAL OF PHYSICAL CHEMISTRY C, v.123, no.4, pp.2516 - 2525-
dc.citation.titleJOURNAL OF PHYSICAL CHEMISTRY C-
dc.citation.volume123-
dc.citation.number4-
dc.citation.startPage2516-
dc.citation.endPage2525-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusDOUBLE-LAYER STRUCTURE-
dc.subject.keywordPlusMOLECULAR-DYNAMICS-
dc.subject.keywordPlusAQUEOUS NACL-
dc.subject.keywordPlusCAPACITANCE-
dc.subject.keywordPlusELECTROLYTES-
dc.subject.keywordPlusSURFACES-
dc.subject.keywordPlusDENSITY-
dc.subject.keywordPlusSLIT-
dc.subject.keywordPlusENHANCEMENT-
dc.subject.keywordPlusPARTITION-
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > 1. Journal Papers (저널논문)
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