Abstract
Thiocyanide ion adsorption on Pt and Ni electrode surfaces was investigated by confocal Raman microscopy. The effects on the adsorption behavior of SCN− by the electrolyte anion, concentration and applied potential were studied. The potential has a significant effect on the frequency shift of SCN− as a result of the electrochemical Stark effect. The adsorbability of the electrolyte anion has a significant influence on the surface Raman intensity of SCN−; the intensity follows the order Cl− <ClO4− <F−. It can be explained in terms of competitive adsorption between the SCN− and the anion. It has been shown that surface Raman spectroscopy can be a sensitive tool for the in-situ analysis of the surface species and its configuration, such as surface complexes and films on transition metal electrodes.
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Ren, B., Huang, QJ., Xie, Y. et al. Analyzing the Adsorption Behavior of Thiocyanide on Pure Pt and Ni Electrode Surfaces by Confocal Microprobe Raman Spectroscopy. ANAL. SCI. 16, 225–230 (2000). https://doi.org/10.2116/analsci.16.225
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DOI: https://doi.org/10.2116/analsci.16.225