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Non-equilibrium effects in the nickel hydroxide electrode

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Abstract

The electrochemical reaction Ni(OH)2=NiOOH+H++e occurring under potentiodynamic conditions in 1 N KOH using complex triangular potential sweep revealed the existence of non-equilibrium effects of both reactant and products which cause the splitting of the anodic current peak already known. By a suitable choice of the perturbation variables, the rate of the chemical change the Ni(OH)2 species undergoes can be estimated. The reaction presenting the nickel hydroxide electrode is interpreted as two parallel electron transfer steps coupled to two chemical reactions through a square-type reaction model.

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Authors and Affiliations

  1. División Electroquímica, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas, Sucursal 4, Casilla de Correo 16, 1900, La Plata, Argentina

    R. S. Schrebler Guzmán, J. R. Vilche & A. J. Arvía

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  1. R. S. Schrebler Guzmán
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  2. J. R. Vilche
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  3. A. J. Arvía
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Guzmán, R.S.S., Vilche, J.R. & Arvía, A.J. Non-equilibrium effects in the nickel hydroxide electrode. J Appl Electrochem 9, 183–189 (1979). https://doi.org/10.1007/BF00616088

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  • DOI: https://doi.org/10.1007/BF00616088

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