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

doi:10.1016/j.elecom.2010.03.003

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

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

111 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 language	English
Pages (from-to)	672-675
Number of pages	4
Journal	Electrochemistry Communications
Volume	12
Issue number	5
DOIs	https://doi.org/10.1016/j.elecom.2010.03.003
Publication status	Published - 2010 May 1

Keywords

Adsorption hysteresis
Ionic liquids
Pt
SFG spectroscopy

ASJC Scopus subject areas

Electrochemistry

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10.1016/j.elecom.2010.03.003

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Zhou, W., Inoue, S., Iwahashi, T., Kanai, K., Seki, K., Miyamae, T., Kim, D., Katayama, Y., & Ouchi, Y. (2010). 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. Electrochemistry Communications, 12(5), 672-675. https://doi.org/10.1016/j.elecom.2010.03.003

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 et al.
In: Electrochemistry Communications, Vol. 12, No. 5, 01.05.2010, p. 672-675.

Research output: Contribution to journal › Article › peer-review

Zhou, W, Inoue, S, Iwahashi, T, Kanai, K, Seki, K, Miyamae, T, Kim, D, Katayama, Y & Ouchi, Y 2010, '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', Electrochemistry Communications, vol. 12, no. 5, pp. 672-675. https://doi.org/10.1016/j.elecom.2010.03.003

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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.",

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AU - Zhou, Wei

AU - Inoue, Soya

AU - Iwahashi, Takashi

AU - Kanai, Kaname

AU - Seki, Kazuhiko

AU - Miyamae, Takayuki

AU - Kim, Doseok

AU - Katayama, Yasushi

AU - Ouchi, Yukio

PY - 2010/5/1

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N2 - 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.

AB - 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.

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KW - Ionic liquids

KW - Pt

KW - SFG spectroscopy

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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

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