Kinetics of a Simple Charge Transfer Reaction at a Slurry Electrode

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Abstract
A theoretical treatment is presented for an electrochemical cell in which a suspension of catalytically active particles and fuel stream through the anodic compartment. The overall rate of discharge of the particles at the collector electrode is supposedly controlled either by electrochemical oxydation of chemisorbed species on the particle surface (case of hydrogen reaction) or by charge transfer through a resistance at the contact‐making spot between the collector electrode and the catalyst particle. Special emphasis is given to hydrodynamic determination of collision frequencies with the collector electrode of suspended particles, as a function of their dimension and of the state of turbulency, in order to derive current efficiencies of slurry electrodes under various experimental conditions.

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