Ionic liquid near a charged wall: structure and capacitance of electrical double layer

The Journal of Physical Chemistry. B
Maxim V Fedorov, Alexei A Kornyshev

Abstract

We study the effects of ion size asymmetry and short-range correlations on the electrical double layer in ionic liquids: we perform molecular dynamics simulations of a model ionic liquid between two "electrodes" and calculate the differential capacitance of each as a function of the electrode potential. The capacitance curve has an asymmetric "bell-shape" character, in qualitative agreement with recent experiments and the mean- field theory (MFT) which takes into account the limitation on the maximal local density of ions. The short-range ionic correlations, not included in the MFT, lead to an overscreening effect which changes radically the structure of the double layer at small and moderate charging. With the radius of cations taken to be twice as large as anions, the position of the main capacitance maximum is shifted positively from the potential of zero charge (PZC), as predicted by MFT. An extension of the theory (EMFT), however, reproduces the simulated capacitance curve almost quantitatively. Capacitance curves for real ionic liquids will be affected by nonspherical shape of ions and sophisticated pair potentials, varying from liquid to liquid. But understanding the capacitance behavior of such model system is a basis f...Continue Reading

References

Dec 6, 1993·Physical Review Letters·M E Fisher, Y Levin
Sep 28, 2004·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Marisa C BuzzeoRichard G Compton
Feb 14, 2007·The Journal of Physical Chemistry. B·Carlos PinillaR M Lynden-Bell
Mar 16, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Mustafa Sabri KilicArmand Ajdari
May 2, 2007·The Journal of Physical Chemistry. B·Alexei A Kornyshev

❮ Previous
Next ❯

Citations

Nov 12, 2010·Journal of the American Chemical Society·Yixian WangMichael V Mirkin
Nov 13, 2013·Nano Letters·Emre O Polat, Coskun Kocabas
Oct 30, 2013·Nature Communications·C MerletM Salanne
Feb 11, 2010·Physical Chemistry Chemical Physics : PCCP·Mark N Kobrak, Hualin Li
Feb 11, 2010·Physical Chemistry Chemical Physics : PCCP·Hongtao LiuJinghong Li
Jun 24, 2010·Physical Chemistry Chemical Physics : PCCP·W Ronald Fawcett, Peter J Ryan
Aug 20, 2010·Physical Chemistry Chemical Physics : PCCP·Vera LockettJohn Ralston
May 17, 2011·Chemical Communications : Chem Comm·Susan PerkinNitya Nand Gosvami
May 14, 2011·Physical Chemistry Chemical Physics : PCCP·S KondratA A Kornyshev
Jan 21, 2012·Physical Chemistry Chemical Physics : PCCP·Maxim V Fedorov, R M Lynden-Bell
Jan 19, 2012·Physical Chemistry Chemical Physics : PCCP·R M Lynden-BellM V Fedorov
Feb 4, 2012·Physical Chemistry Chemical Physics : PCCP·Susan Perkin
Jul 19, 2012·Physical Chemistry Chemical Physics : PCCP·Jun Cheng, Michiel Sprik
Mar 6, 2012·Physical Chemistry Chemical Physics : PCCP·Frank Endres
Aug 30, 2013·Physical Chemistry Chemical Physics : PCCP·Ramesh SinghFrancisco R Hung
Aug 30, 2013·Physical Chemistry Chemical Physics : PCCP·Céline MerletMathieu Salanne
May 30, 2013·Proceedings of the National Academy of Sciences of the United States of America·Matthew A GebbieJacob N Israelachvili
Jan 1, 2013·Faraday Discussions·Alexander M SmithSusan Perkin
Mar 5, 2014·Physical Chemistry Chemical Physics : PCCP·Ryan BurtX S Zhao
Mar 5, 2014·Chemical Reviews·Maxim V Fedorov, Alexei A Kornyshev
Apr 14, 2013·The Journal of Chemical Physics·Douglas HendersonJianzhong Wu
Jan 15, 2014·The Journal of Chemical Physics·Stanisław LamperskiDouglas Henderson
Aug 18, 2012·The Journal of Chemical Physics·Vincent DémeryRudolf Podgornik
Dec 3, 2008·The Journal of Chemical Physics·R M Lynden-Bell
Dec 15, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Fereshte TaherianNico F A van der Vegt
Jun 2, 2015·Chemical Reviews·Robert HayesRob Atkin
Aug 16, 2015·The Journal of Physical Chemistry Letters·Alexander M SmithSusan Perkin
Oct 17, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Matthew A BrownSylvio May
Jan 1, 2015·Materials for Renewable and Sustainable Energy·Lorie TrognkoPatrice Simon
Feb 14, 2015·Physical Chemistry Chemical Physics : PCCP·Volker LeschJens Smiatek
Oct 29, 2015·The Journal of Physical Chemistry. B·Sophia N SuarezJames F Wishart
Oct 6, 2015·Molecular Informatics·Julian E FuchsRobert C Glen
Jan 13, 2015·Scientific Reports·O Y FajardoM Urbakh
Jun 16, 2012·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Rajdeep Singh Payal, Sundaram Balasubramanian
Jan 4, 2012·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Natalia BorisenkoFrank Endres
Apr 5, 2012·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Xiujuan SiTianying Yan
Aug 19, 2010·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Yu-Zhuan SuBing-Wei Mao
Oct 17, 2015·The Journal of Chemical Physics·R CapozzaE Tosatti

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.