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Product distribution in preparative-scale electrolysis:Part VIII. Transition between fast and slow chemical kinetics. Application to mechanisms involving one or two first-order consecutive chemical steps

Authors
Journal
Journal of Electroanalytical Chemistry
0022-0728
Publisher
Elsevier
Publication Date
Volume
236
Identifiers
DOI: 10.1016/0022-0728(87)88016-6
Disciplines
  • Chemistry

Abstract

Abstract The variations of the product distribution in preparative-scale electrolysis with the various experimental parameters are an important tool for both mechanistic studies and yield optimization in cases where competing chemical reactions are coupled with the initial electron transfer steps. Two limiting situations have been treated so far, involving respectively fast chemical reactions taking place in a thin reaction layer, thinner than the diffusion layer, or, conversely, slow chemical reactions taking place exclusively outside the diffusion layer. The intermediate case of moderately fast reactions and thus the passage from one situation to the other is investigated for two reaction schemes involving one and two irreversible follow-up chemical steps. The variations of the product concentrations with time are discussed as functions of a minimal number of dimensionless rate parameters.

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