Mean-Field Theory of Electrical Double Layer In Ionic Liquids with Account of Short-Range Correlations

被引：127
作者：
Goodwin, Zachary A. H. [1 ]
Feng, Guang [2 ]
Kornyshev, Alexei A. [1 ]
机构：
[1] Imperial Coll London, Dept Chem, Imperial Coll Rd, London SW7 2AZ, England
[2] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Sch Energy & Power Engn, Wuhan 430074, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2017年 / 225卷
基金：
英国工程与自然科学研究理事会;
关键词：
Ionic liquids; Double layer; short-range correlations; ion pairing; DIFFERENTIAL CAPACITANCE; GRAPHITE-ELECTRODES; HYDRATION FORCES; MOLTEN-SALT; ELECTROCHEMICAL INTERFACES; SOLVATION FORCES; MODEL; SURFACE; ELECTROLYTES; CARBON;
D O I：
10.1016/j.electacta.2016.12.092
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
We develop the theory of the electrical double layer in ionic liquids as proposed earlier by Kornyshev (2007). In the free energy function we keep the so called short-range correlation terms which were omitted there. With some simplifying assumptions, we arrive at a modified expression for differential capacitance, which makes differential capacitance curves less sharply depending on electrode potential and having smaller values at extrema than in the previous theory. This brings the results closer to typical experimental observations, and makes it appealing to use this formalism for treatment of experimental data. Implications on Debye length and the extent of ion paring in ionic liquids are then briefly discussed. (C) 2016 Elsevier Ltd. All right reserved.
引用
收藏
页码：190 / 197
页数：8
相关论文
共 50 条
  • [1] Development of mean-field electrical double layer theory
    Huang, Yike
    Liu, Xiaohong
    Li, Shu
    Yan, Tianying
    CHINESE PHYSICS B, 2016, 25 (01)
  • [2] Development of mean-field electrical double layer theory
    黄一珂
    刘晓红
    李姝
    言天英
    Chinese Physics B, 2016, (01) : 286 - 292
  • [3] Theory for Anomalous Electric Double-Layer Dynamics in Ionic Liquids
    Singh, Maibam Birla
    Kant, Rama
    JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (17) : 8766 - 8774
  • [4] A mean-field theory on the differential capacitance of asymmetric ionic liquid electrolytes
    Han, Yining
    Huang, Shanghui
    Yan, Tianying
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2014, 26 (28)
  • [5] Water in the Electrical Double Layer of Ionic Liquids on Graphene
    Zheng, Qianlu
    Goodwin, Zachary A. H.
    Gopalakrishnan, Varun
    Hoane, Alexis G.
    Han, Mengwei
    Zhang, Ruixian
    Hawthorne, Nathaniel
    Batteas, James D.
    Gewirth, Andrew A.
    Espinosa-Marzal, Rosa M.
    ACS NANO, 2023, 17 (10) : 9347 - 9360
  • [6] Short-range correlations and neutrinoless double beta decay
    Kortelainen, M.
    Civitarese, O.
    Suhonen, J.
    Toivanen, J.
    PHYSICS LETTERS B, 2007, 647 (2-3) : 128 - 132
  • [7] Gelation, clustering, and crowding in the electrical double layer of ionic liquids
    Goodwin, Zachary A. H.
    McEldrew, Michael
    de Souza, J. Pedro
    Bazant, Martin Z. Z.
    Kornyshev, Alexei A. A.
    JOURNAL OF CHEMICAL PHYSICS, 2022, 157 (09)
  • [8] Molecular dynamics simulation of the electrical double layer in ionic liquids
    Kislenko, S. A.
    Amirov, R. H.
    Samoylov, I. S.
    7TH INTERNATIONAL CONFERENCE ON APPLIED ELECTROSTATICS (ICAES-2012), 2013, 418
  • [9] The Electrical Double Layer of Dicationic Ionic Liquids at Onion-like Carbon Surface
    Li, Song
    Van Aken, Katherine L.
    McDonough, John K.
    Feng, Guang
    Gogotsi, Yury
    Cummings, Peter T.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (08) : 3901 - 3909
  • [10] Differential capacitance of the electric double layer: mean-field modeling approaches
    May, Sylvio
    CURRENT OPINION IN ELECTROCHEMISTRY, 2019, 13 : 125 - 131
12345