Double layer structure and adsorption/desorption hysteresis of neat ionic liquid on Pt electrode surface - an in-situ IR-visible sum-frequency generation spectroscopic study

Wei Zhou, Soya Inoue, Takashi Iwahashi, Kaname Kanai, Kazuhiko Seki, Takayuki Miyamae, Doseok Kim, Yasushi Katayama, Yukio Ouchi

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

The electrochemical interface between a polycrystalline Pt electrode and the ionic liquid 1-butyl-3-methylimidazolium trifluoromethanesulfonate ([bmim][OTf]) has been studied by in-situ IR-visible sum-frequency generation (SFG) spectroscopy. Potential dependent adsorption/desorption processes of OTf anions has been monitored within the electrochemical window. SFG results indicate that the ions form a double layer structure at the interface. Significant adsorption/desorption hysteresis has been observed for the anions on the Pt surface.

Original languageEnglish
Pages (from-to)672-675
Number of pages4
JournalElectrochemistry Communications
Volume12
Issue number5
DOIs
Publication statusPublished - 2010 May

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Ionic Liquids
Ionic liquids
Anions
Hysteresis
Desorption
Negative ions
Adsorption
Electrodes
Spectroscopy
Ions
1-butyl-3-methylimidazolium trifluoromethanesulfonate

Keywords

  • Adsorption hysteresis
  • Ionic liquids
  • Pt
  • SFG spectroscopy

ASJC Scopus subject areas

  • Electrochemistry

Cite this

Double layer structure and adsorption/desorption hysteresis of neat ionic liquid on Pt electrode surface - an in-situ IR-visible sum-frequency generation spectroscopic study. / Zhou, Wei; Inoue, Soya; Iwahashi, Takashi; Kanai, Kaname; Seki, Kazuhiko; Miyamae, Takayuki; Kim, Doseok; Katayama, Yasushi; Ouchi, Yukio.

In: Electrochemistry Communications, Vol. 12, No. 5, 05.2010, p. 672-675.

Research output: Contribution to journalArticle

Zhou, Wei ; Inoue, Soya ; Iwahashi, Takashi ; Kanai, Kaname ; Seki, Kazuhiko ; Miyamae, Takayuki ; Kim, Doseok ; Katayama, Yasushi ; Ouchi, Yukio. / Double layer structure and adsorption/desorption hysteresis of neat ionic liquid on Pt electrode surface - an in-situ IR-visible sum-frequency generation spectroscopic study. In: Electrochemistry Communications. 2010 ; Vol. 12, No. 5. pp. 672-675.
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AU - Kanai, Kaname

AU - Seki, Kazuhiko

AU - Miyamae, Takayuki

AU - Kim, Doseok

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