The interface between Au(1 0 0) and 1-butyl-3-methyl-imidazolium-bis(trifluoromethylsulfonyl)imide

Claus Müller, Soma Vesztergom, T. Pajkossy, Timo Jacob

Research output: Article

21 Citations (Scopus)

Abstract

The electrochemical interface of Au(1 0 0) and an ionic liquid, BMITf2N, has been characterized by cyclic voltammetry, electrochemical impedance spectroscopy and in situ STM with the aim to compare this particular electrochemical system with the Au(1 0 0)|BMIPF6 electrode. It is demonstrated that the two systems share the same electrochemical features: the capacitance spectra around the pztc show a double-arc structure on the complex plane, and the high frequency capacitance limits are practically the same in both systems. The double layer rearrangement processes are very slow; they proceed with time constants of minutes. Ordered adlayers of cations and anions have been imaged by in situ STM.

Original languageEnglish
Pages (from-to)218-225
Number of pages8
JournalJournal of Electroanalytical Chemistry
Volume737
DOIs
Publication statusPublished - jan. 15 2015

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ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry

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