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Capillary Condensation of Ionic Liquid Solutions in Porous Electrodes

Szparaga, Ryan LU ; Woodward, Clifford E. and Forsman, Jan LU (2013) In Journal of Physical Chemistry C 117(4). p.1728-1734
Abstract
We use classical density functional theory to investigate room temperature ionic liquid + solvent mixtures in porous electrodes. We consider those mixtures that display a miscibility gap in the bulk fluid and hence have the capacity to undergo capillary condensation in pores which preferentially attract the ionic liquid component. A novel aspect of this transition is that, when the system is at or near the critical point for this transition, we find an extraordinary increase in the capacitance, which derives from the fact that the capacitance is a thermodynamic response function, diverging at spinodal points.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
117
issue
4
pages
1728 - 1734
publisher
The American Chemical Society
external identifiers
  • wos:000314492400024
  • scopus:84874442812
ISSN
1932-7447
DOI
10.1021/jp309794w
language
English
LU publication?
yes
id
7c0d27f6-ea73-4fee-bd77-ea1e9e295db1 (old id 3590016)
date added to LUP
2013-03-20 09:32:00
date last changed
2019-02-20 02:31:30
@article{7c0d27f6-ea73-4fee-bd77-ea1e9e295db1,
  abstract     = {We use classical density functional theory to investigate room temperature ionic liquid + solvent mixtures in porous electrodes. We consider those mixtures that display a miscibility gap in the bulk fluid and hence have the capacity to undergo capillary condensation in pores which preferentially attract the ionic liquid component. A novel aspect of this transition is that, when the system is at or near the critical point for this transition, we find an extraordinary increase in the capacitance, which derives from the fact that the capacitance is a thermodynamic response function, diverging at spinodal points.},
  author       = {Szparaga, Ryan and Woodward, Clifford E. and Forsman, Jan},
  issn         = {1932-7447},
  language     = {eng},
  number       = {4},
  pages        = {1728--1734},
  publisher    = {The American Chemical Society},
  series       = {Journal of Physical Chemistry C},
  title        = {Capillary Condensation of Ionic Liquid Solutions in Porous Electrodes},
  url          = {http://dx.doi.org/10.1021/jp309794w},
  volume       = {117},
  year         = {2013},
}