Differential Capacitance of Room Temperature Ionic Liquids: The Role of Dispersion Forces

Martin Trulsson; Jenny Algotsson; Jan Forsman; Clifford E. Woodward

doi:10.1021/jz900412t

Differential Capacitance of Room Temperature Ionic Liquids: The Role of Dispersion Forces

Martin Trulsson, Jenny Algotsson, Jan Forsman, Clifford E. Woodward

Computational Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

We investigate theoretical models of room temperature ionic liquids, and find that the experimentally observed camel-shape of the differential capacitance is strongly related to dispersion interactions in these systems. At low surface charge densities, the loss of dispersion interactions in the vicinity of the electrodes generates depleted densities, with a concomitant drop of the differential capacitance. This behavior is not observed in models where dispersion interactions have been removed.

Original language	English
Pages (from-to)	1191-1195
Journal	The Journal of Physical Chemistry Letters
Volume	1
Issue number	8
DOIs	https://doi.org/10.1021/jz900412t
Publication status	Published - 2010

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Theoretical Chemistry (S) (011001039)

Subject classification (UKÄ)

Theoretical Chemistry (including Computational Chemistry)

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10.1021/jz900412t

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title = "Differential Capacitance of Room Temperature Ionic Liquids: The Role of Dispersion Forces",

abstract = "We investigate theoretical models of room temperature ionic liquids, and find that the experimentally observed camel-shape of the differential capacitance is strongly related to dispersion interactions in these systems. At low surface charge densities, the loss of dispersion interactions in the vicinity of the electrodes generates depleted densities, with a concomitant drop of the differential capacitance. This behavior is not observed in models where dispersion interactions have been removed.",

author = "Martin Trulsson and Jenny Algotsson and Jan Forsman and Woodward, \{Clifford E.\}",

note = "The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Theoretical Chemistry (S) (011001039)",

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AU - Algotsson, Jenny

AU - Forsman, Jan

AU - Woodward, Clifford E.

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Theoretical Chemistry (S) (011001039)

PY - 2010

Y1 - 2010

N2 - We investigate theoretical models of room temperature ionic liquids, and find that the experimentally observed camel-shape of the differential capacitance is strongly related to dispersion interactions in these systems. At low surface charge densities, the loss of dispersion interactions in the vicinity of the electrodes generates depleted densities, with a concomitant drop of the differential capacitance. This behavior is not observed in models where dispersion interactions have been removed.

AB - We investigate theoretical models of room temperature ionic liquids, and find that the experimentally observed camel-shape of the differential capacitance is strongly related to dispersion interactions in these systems. At low surface charge densities, the loss of dispersion interactions in the vicinity of the electrodes generates depleted densities, with a concomitant drop of the differential capacitance. This behavior is not observed in models where dispersion interactions have been removed.

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U2 - 10.1021/jz900412t

DO - 10.1021/jz900412t

M3 - Article

SN - 1948-7185

VL - 1

SP - 1191

EP - 1195

JO - The Journal of Physical Chemistry Letters

JF - The Journal of Physical Chemistry Letters

IS - 8

ER -

Differential Capacitance of Room Temperature Ionic Liquids: The Role of Dispersion Forces

Abstract

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