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Anodic oxidation of cyanide on a reticulated three-dimensional electrode

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Abstract

The preparation of a three-dimensional electrode suitable for the oxidation of dilute solutions of cyanide, by the electrodeposition of Pb02 on a reticulated vitreous carbon substrate is described. The electrode obtained (RVC-Pb02) is corrosion resistant and allows the oxidation of less than 5 p.p.m. of CN− with a faradaic yield estimated at 50%. The mass transfer coefficient for the oxidation of the potassium ferrocyanide and the specific surface area of the RVC-Pb02 electrode has been determined.

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Abbreviations

n :

number of electrons

v :

linear velocity of the electrolyte (ms−1)

i L :

limiting current (A)

Q v :

volumetric flow (m3 s−1)

C e :

concentration (mol m−3)

A e :

specific surface area of the electrode (m−1)

L :

length of the electrode (m)

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Authors and Affiliations

  1. Département de Chimie Minérale, Analytique et Appliquée, Université de Genève, 30 Quai E. Ansermet, CH-1211, Geneva 4, Switzerland

    P. Tissot & M. Fragniere

Authors
  1. P. Tissot
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  2. M. Fragniere
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Tissot, P., Fragniere, M. Anodic oxidation of cyanide on a reticulated three-dimensional electrode. J Appl Electrochem 24, 509–512 (1994). https://doi.org/10.1007/BF00249850

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  • DOI: https://doi.org/10.1007/BF00249850

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