Abstract
A cell has been constructed which enables the observation by microscopy of the electrochemical formation of Na2S x on graphite fibres in a thin layer of liquid sulphur. The polysulphide phase initially forms only on the graphite surface although later other small droplets of this phase are deposited in the bulk of liquid sulphur. In contrast to the mechanisms in the literature the formation of these droplets by an electrochemical route is suggested. It is probably due to electronic conduction by dissolved sodium in the liquid sulphur.
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References
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Suski, L., Kolacz, J. Morphology of sodium polysulphides formed electrolytically on graphite fibres in molten sulphur. J Appl Electrochem 10, 683–686 (1980). https://doi.org/10.1007/BF00615493
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DOI: https://doi.org/10.1007/BF00615493