dc.contributor.author
Rezaei, Majid
dc.contributor.author
Mitterwallner, Bernhard G.
dc.contributor.author
Loche, Philip
dc.contributor.author
Uematsu, Yuki
dc.contributor.author
Netz, Roland R.
dc.contributor.author
Bonthuis, Douwe Jan
dc.date.accessioned
2021-08-03T07:27:04Z
dc.date.available
2021-08-03T07:27:04Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/31496
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-31228
dc.description.abstract
The dielectric constant and the viscosity of water at the interface of hydrophilic surfaces differ from their bulk values, and it has been proposed that the deviation is caused by the strong electric field and the high ion concentration in the interfacial layer. We calculate the dependence of the dielectric constant and the viscosity of bulk electrolytes on the electric field and the salt concentration. Incorporating the concentration and field-dependent dielectric constant and viscosity in the extended Poisson–Boltzmann and Stokes equations, we calculate the electro-osmotic mobility. We compare the results to literature experimental data and explicit molecular dynamics simulations of OH-terminated surfaces and show that it is necessary to additionally include the presence of a subnanometer wide interfacial water layer, the properties of which are drastically transformed by the sheer presence of the interface. We conclude that the origin of the anomalous behavior of aqueous interfacial layers cannot be found in electrostriction or electroviscous effects caused by the interfacial electric field and ion concentration. Instead, it is primarily caused by the intrinsic ordering and orientation of the interfacial water layer.
en
dc.format.extent
12 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
Electric fields
en
dc.subject
Electrical properties
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.title
Interfacial, Electroviscous, and Nonlinear Dielectric Effects on Electrokinetics at Highly Charged Surfaces
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.1021/acs.jpcb.0c11280
dcterms.bibliographicCitation.journaltitle
Journal of Physical Chemistry B
dcterms.bibliographicCitation.number
18
dcterms.bibliographicCitation.pagestart
4767
dcterms.bibliographicCitation.pageend
4778
dcterms.bibliographicCitation.volume
125
dcterms.bibliographicCitation.url
https://doi.org/10.1021/acs.jpcb.0c11280
refubium.affiliation
Physik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
1520-5207
refubium.resourceType.provider
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