Why Direct or Reversed Hofmeister Series? Interplay of Hydration, Non-electrostatic Potentials, and Ion Size
-
Altmetric Citations
Parsons, Drew; Bostrom, Mathias Anders; Maceina, T.J.; Salis, Andrea; Ninham, Barry
Description
A modified Poisson-Boltzmann analysis is made of the double layer interaction between two silica surfaces and two alumina surfaces in chloride electrolyte. The analysis incorporates nonelectrostatic ion-surface dispersion interactions based on ab initio ionic excess polarizabilities with finite ion sizes. A hydration model for the tightly held hydration shell of kosmotropic ions is introduced. A direct Hofmeister series (K > Na > Li) is found at the silica surface while the reversed series (Li...[Show more]
dc.contributor.author | Parsons, Drew | |
---|---|---|
dc.contributor.author | Bostrom, Mathias Anders | |
dc.contributor.author | Maceina, T.J. | |
dc.contributor.author | Salis, Andrea | |
dc.contributor.author | Ninham, Barry | |
dc.date.accessioned | 2015-12-10T22:28:58Z | |
dc.identifier.issn | 0743-7463 | |
dc.identifier.uri | http://hdl.handle.net/1885/54681 | |
dc.description.abstract | A modified Poisson-Boltzmann analysis is made of the double layer interaction between two silica surfaces and two alumina surfaces in chloride electrolyte. The analysis incorporates nonelectrostatic ion-surface dispersion interactions based on ab initio ionic excess polarizabilities with finite ion sizes. A hydration model for the tightly held hydration shell of kosmotropic ions is introduced. A direct Hofmeister series (K > Na > Li) is found at the silica surface while the reversed series (Li > Na > K) is found at alumina, bringing theory in line with experiment for the first time. Calculations with unhydrated ions also suggest that surface-induced dehydration may be occurring at the alumina surface. | |
dc.publisher | American Chemical Society | |
dc.source | Langmuir | |
dc.subject | Keywords: Ab initio; Alumina surface; Chloride electrolytes; Double-layer interaction; Electrostatic potentials; Hofmeister series; Hydration shell; In-line; Ion size; Poisson-Boltzmann analysis; Polarizabilities; Silica surface; Surface dispersion; Chlorine compou | |
dc.title | Why Direct or Reversed Hofmeister Series? Interplay of Hydration, Non-electrostatic Potentials, and Ion Size | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | Article ASAP | |
dc.date.issued | 2009 | |
local.identifier.absfor | 030603 - Colloid and Surface Chemistry | |
local.identifier.ariespublication | u9210271xPUB307 | |
local.type.status | Published Version | |
local.contributor.affiliation | Parsons, Drew, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Bostrom, Mathias Anders, Linkoping University | |
local.contributor.affiliation | Maceina, T.J., Linkoping University | |
local.contributor.affiliation | Salis, Andrea, Universita di Cagliari | |
local.contributor.affiliation | Ninham, Barry, College of Physical and Mathematical Sciences, ANU | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | web release Oct 2009 | |
local.bibliographicCitation.startpage | 6 | |
local.identifier.doi | 10.1021/la903061h | |
dc.date.updated | 2016-02-24T11:55:40Z | |
local.identifier.scopusID | 2-s2.0-77749255800 | |
local.identifier.thomsonID | 000274636900053 | |
Collections | ANU Research Publications |
Download
File | Description | Size | Format | Image |
---|---|---|---|---|
01_Parsons_Why_Direct_or_Reversed_2009.pdf | 235.08 kB | Adobe PDF | Request a copy |
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.
Updated: 17 November 2022/ Responsible Officer: University Librarian/ Page Contact: Library Systems & Web Coordinator