Time Differential Surface Plasmon Resonance Measurements Applied for Electrochemical Analysis

Yuzuru Iwasaki, Tsutomu Horiuchi, Masao Morita, Osamu Niwa

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The processes of oxide film formation and ion adsorption on gold electrodes were monitored by the simultaneous measurement of electrochemical potential scanning voltammetry and surface plasmon resonance (SPR) condition. The time differential of the SPR incident angle was used for the analysis of the surface reactions of the gold electrode. Each stage of oxide film formation on the sputtered gold electrodes and anion adsorption/ desorption was clearly detected by this method and directly correlated to the current. SPR is sensitive to the surface adsorbate while the electrode current reflects the overall electrochemical process. This difference was used to separate adsorption from the diffusion process under different hydrodynamic conditions.

Original languageEnglish
Pages (from-to)1239-1241
Number of pages3
JournalElectroanalysis
Volume9
Issue number16
DOIs
Publication statusPublished - 1997 Jan 1
Externally publishedYes

Keywords

  • Gold electrode
  • Oxide formation
  • Surface plasmon resonance

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

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