Electrochemical reduction of lead chloride on some solid electrodes in fused NaCl-KCl mixtures |
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| Authors: | M E Lima J Bouteillon |
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| Affiliation: | 1. Departmento de Quimica, Universidade Federal da Para?ba, 58050, Joao-Pb, Brasil
2. Centre de Recherche en Electrochimie Minérale et Génie des Procédés, (URA CNRS 1212), Université Joseph Fourier, B.P. 75, 38402, Saint-Martin D'Heres, France
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| Abstract: | The electrochemical reduction of PbCl2 has been studied in a fused NaCl–KCl mixture with tungsten, molybdenum and nickel electrodes. Experiments were conducted in the 700–850°C temperature range using voltammetric and chronopotentiometric techniques. Poor lead adhesion to the electrode surface made the study with the nickel electrode impossible and the results obtained with the tungsten electrode somewhat doubtful. Lead adhesion to the molybdenum surface was good but the experimental curves had to be corrected for a cathodic residual current. The lead chloride reduction appears to occur reversibly according to the reaction.
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