Abstract
This work describes a method for synthesizing sodium peroxocarbonate by electoxidation of carbonate on conductive-diamond thin film electrodes in a sodium carbonate solution at room temperature. The effect of several parameters including: electrolyte concentration, current intensity, addition of Na2SiO3 as a stabilizing agent, and increments in temperature for sodium peroxocarbonate formation has been studied in an electrochemical H cell of two compartments separated by a cation-exchange membrane. The oxidant formation has been confirmed by cyclic voltammetry and in situ reduction during water electrolysis. The optimal experimental conditions are: the current density of 34.3 mA cm−2, an electrolyte concentration of 1 M, and the addition of 4 g/L of sodium metasilicate in the two compartments of the electrochemical cell.
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Ruiz-Ruiz, E.J., Meas, Y., Ortega-Borges, R. et al. Electrochemical production of peroxocarbonate at room temperature using conductive diamond anodes. Surf. Engin. Appl.Electrochem. 50, 478–484 (2014). https://doi.org/10.3103/S106837551406009X
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DOI: https://doi.org/10.3103/S106837551406009X