Bias-Dependent Molecular-Level Structure of Electrical Double Layer in Ionic Liquid on Graphite

被引：142

作者：

Black, Jennifer M. ^{[1
]}

Walters, Deron ^{[2
]}

Labuda, Aleksander ^{[2
]}

Feng, Guang ^{[3
]}

Hillesheim, Patrick C. ^{[4
]}

Dai, Sheng ^{[4
]}

Cummings, Peter T. ^{[3
]}

Kalinin, Sergei V. ^{[1
]}

Proksch, Roger ^{[2
]}

Balke, Nina ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA

[2] Asylum Res, Santa Barbara, CA 93117 USA

[3] Vanderbilt Univ, Nashville, TN 37235 USA

[4] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA

来源：

NANO LETTERS | 2013年 / 13卷 / 12期

关键词：

Ionic liquid; highly ordered pyrolytic graphite; electrochemical double layer; atomic force microscopy; force-distance curve; ATOMIC-FORCE MICROSCOPY; CAPACITANCE; INTERFACE; SIMULATIONS; AFM; SUPERCAPACITORS; ELECTRODE; ENERGY; STM; TIP;

D O I：

10.1021/nl4031083

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Here we report the bias-evolution of the electrical double layer structure of an ionic liquid on highly ordered pyrolytic graphite measured by atomic force microscopy. We observe reconfiguration under applied bias and the orientational transitions in the Stern layer. The synergy between molecular dynamics simulation and experiment provides a comprehensive picture of structural phenomena and long and short-range interactions, which improves our understanding of the mechanism of charge storage on a molecular level.

引用

页码：5954 / 5960

页数：7

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