Electrochemical double-layer structure of Pt electrode/ionic liquids interface studied by in situ IR-visible sum frequency generation spectroscopy

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

The electrochemical interface between a polycrystalline Pt electrode and an ionic liquid 1-butyl-3-methylimidazolium trifluoromethane sulfonate ([bmim]OTf) has been studied by in situ sum frequency generation (SFG) spectroscopy. Potential dependent adsorption and desorption processes of OTf anion as well as [bmim] cation have been observed. A double-layer model of the interface structure has been suggested based on the behavior of both the anion and the cation in the electrochemical potential window. Hysteresis effect has been observed during the desorption and the re-adsorption processes of both the anion and the cation on the Pt surface.

Original languageEnglish
Title of host publicationECS Transactions - Molten Salts and Ionic Liquids 16 - 214th ECS Meeting
Pages545-557
Number of pages13
Edition49
DOIs
Publication statusPublished - 2008 Dec 1
EventMolten Salts and Ionic Liquids 16 - 214th ECS Meeting - Honolulu, HI, United States
Duration: 2008 Oct 122008 Oct 17

Publication series

NameECS Transactions
Number49
Volume16
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherMolten Salts and Ionic Liquids 16 - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period08/10/1208/10/17

ASJC Scopus subject areas

  • Engineering(all)

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