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Competitive Interactions at Electrolyte/Octanol Interfaces - A Molecular Perspective

submitted on 09.01.2020, 00:54 and posted on 10.01.2020, 11:23 by Nitesh Kumar, Michael J. Servis, Zhu Liu, Aurora Clark

Much is understood about electrolyte liquid/liquid interfaces, yet the relationships between ion solvation, adsorption, and the instantaneous surface have not been the topic of signicant study. The thermally corrugated capillary wave characteristics of the instantaneous aqueous surface contribute to heterogeneous interfacial structural and dynamic properties. Those properties are sensitive the nature of the immiscible nonpolar solvent. In this work, we examine the role of interfacial heterogeneity upon ion behavior and further, how this is inuenced by a partially polar solvent relative to a vapor phase analog. We compare and contrast ion solvation in electrolyte/vapor and electrolyte/octanol biphasic systems, focusing upon the changes to interfacial heterogeneity in the presence of the octanol solvent and the variations of ion concentration at dierent interfacial regions. The interplay between competing forces introduced by strong octanol water interactions at the interface is examined, with a new understanding of how such competition may lead to tailored interfacial properties.


Bespoke Liquid/Liquid Interfaces that Modulate Solute Transport Mechanisms in Solvent Extraction

Basic Energy Sciences

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Email Address of Submitting Author


Washington State University



ORCID For Submitting Author


Declaration of Conflict of Interest

There are no conflicts of interest to declare

Version Notes

This is the first version.


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in The Journal of Physical Chemistry C