Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7520
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dc.contributor.authorŞen, Tümcan-
dc.contributor.authorBarışık, Murat-
dc.date.accessioned2019-12-24T11:36:05Z-
dc.date.available2019-12-24T11:36:05Z-
dc.date.issued2018en_US
dc.identifier.citationŞen, T., and Barışık, M. (2018). Size dependent surface charge properties of silica nano-channels: Double layer overlap and inlet/outlet effects. Physical Chemistry Chemical Physics, 20(24), 16719-16728. doi:10.1039/c8cp01906aen_US
dc.identifier.issn1463-9076-
dc.identifier.issn1463-9084-
dc.identifier.issn1463-9076-
dc.identifier.urihttps://doi.org/10.1039/c8cp01906a-
dc.identifier.urihttps://hdl.handle.net/11147/7520-
dc.description.abstractTransport inside nano-channels and tubes is highly dependent on their surface charge properties. While previous studies assume that the charge density of a surface is a material property and independent of confinement size, this study properly characterized the surface charge of a nanochannel as a function of channel height and length under various solution conditions. By calculating the local surface charge based on local ionic concentrations, the surface charge of a nano-channel was studied by considering the effects of both overlapping electrical double layers (EDLs) and inlet/outlet regions. First, the surface charge of silica decreased with the increase in EDL overlap, which is characterized by the ratio of EDL thickness to channel height. Second, the local surface charge showed variation at the inlet/outlet regions where the channel’s electrokinetics was in development. We defined a general entrance length as a function of EDL thickness for the electrokinetically developing part of different cases, after which the surface charge reached its equilibrium value and remained constant. Based on such length scales, we extended the existing theory to include nano-effects. A phenomenological model was developed, which can predict the average nano-channel surface charge as a function of EDL thickness, pH, channel length and channel height.en_US
dc.description.sponsorshipIzmir Institute of Technology (2017-IYTE-49)en_US
dc.language.isoenen_US
dc.publisherRoyal Society of Chemistryen_US
dc.relation.ispartofPhysical Chemistry Chemical Physicsen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectElectrical double layersen_US
dc.subjectNanoporesen_US
dc.subjectSilica nano-channelsen_US
dc.titleSize dependent surface charge properties of silica nano-channels: Double layer overlap and inlet/outlet effectsen_US
dc.typeArticleen_US
dc.authorid0000-0002-2413-1991en_US
dc.institutionauthorŞen, Tümcan-
dc.institutionauthorBarışık, Murat-
dc.departmentİzmir Institute of Technology. Mechanical Engineeringen_US
dc.identifier.volume20en_US
dc.identifier.issue24en_US
dc.identifier.startpage16719en_US
dc.identifier.endpage16728en_US
dc.identifier.wosWOS:000436032900043en_US
dc.identifier.scopus2-s2.0-85049040762en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1039/c8cp01906a-
dc.identifier.pmid29881843en_US
dc.relation.doi10.1039/c8cp01906aen_US
dc.coverage.doi10.1039/c8cp01906aen_US
dc.identifier.wosqualityQ1-
dc.identifier.scopusqualityQ1-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.openairetypeArticle-
item.languageiso639-1en-
item.fulltextWith Fulltext-
crisitem.author.dept01. Izmir Institute of Technology-
crisitem.author.dept03.10. Department of Mechanical Engineering-
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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