In situ surface-enhanced raman analysis of water librationon silver electrode in various alkali hydroxide aqueous solutions

Takashi Itoh, Tetsuya Kajita, Toshiteru Maeda, Atsuo Kasuya

Research output: Contribution to journalArticle

Abstract

Water libration on a silver electrode in various alkali hydroxides (MOH, M = Li, Na, K or Cs) aqueous solutions was examined through simultaneous experiments using surface-enhanced Raman scattering (SERS) and electrochemical analysis. This technique, referred to as SERS spectroelectrochemistry, reveals the Raman spectral band between 200 and 750cm-1, assignable to water libration on the electrode surface, through electrode potential scanning. The Raman intensity in this spectral band changes with the electrode potential. The variation in Raman intensity of water libration observed when scanning the electrode potential is discussed in terms of water molecules at the electrode interface in various alkali hydroxide aqueous solutions.

Original languageEnglish
Pages (from-to)396-400
Number of pages5
JournalElectrochemistry
Volume82
Issue number5
DOIs
Publication statusPublished - 2014 May

Keywords

  • In situ raman spectroelectrochemistry
  • SERS
  • Solid-liquid interface
  • Water molecules

ASJC Scopus subject areas

  • Electrochemistry

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