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

  • Jennifer M. Black
  • , Deron Walters
  • , Aleksander Labuda
  • , Guang Feng*
  • , Patrick C. Hillesheim
  • , Sheng Dai
  • , Peter T. Cummings
  • , Sergei V. Kalinin
  • , Roger Proksch
  • , Nina Balke
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)5954-5960
Number of pages7
JournalNano Letters
Volume13
Issue number12
DOIs
Publication statusPublished - 11 Dec 2013

Keywords

  • atomic force microscopy
  • electrochemical double layer
  • force-distance curve
  • highly ordered pyrolytic graphite
  • Ionic liquid

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering

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