Abstract
Modulation and photon counting Raman spectroelectrochemical methods have been applied for studying amorphous carbon electrode surfaces during the electrolysis of HgCl2 in LiCl−KCl eutectic at 370°C. A new Raman band measured at 152 cm−1 was attributed to subvalent Hg2Cl2 species. The Raman signal arises from the melt solvent having appreciable Hg2Cl2 concentrations in the vicinity of the cathode.
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Papatheodorou, G.N., Boviatsis, I.V. & Voyiatzis, G.A. In situ Raman spectra of electrode products during electrolysis of HgCl2 in molten LiCl-KCl eutectic. J Appl Electrochem 22, 517–521 (1992). https://doi.org/10.1007/BF01024091
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DOI: https://doi.org/10.1007/BF01024091