ISSN:
1572-8838
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Electrical Engineering, Measurement and Control Technology
Notes:
Abstract An extractive electrochemical reaction, which uses an extractive liquid (β) to separate the adherent product (S) on the electrode surface (e) in order to allow the continuation of the reaction (R) occurring electrochemically in a reacting phase (α), was investigated with the aim of studying the kinetics and reactor design. A kinetic model based on the competitive surface coverage (θ) by the reactant and the product, was developed to describe the performance in a parallel-plate reactor. The electrochemical reaction rate, defined asKmAX α/e(1-θ)(C R/α-C R/e), is equal to the extraction rate, defined asKdAX β/Seθ(C S β/sat -C S/β) under steady-state conditions whereX is the dispersion function andA is the specific surface area. Simulation under limiting current conditions reveals that this system is dependent on the volume ratio of the two liquids, the dispersion effect and the reactor geometry and diffusion coefficients. Three dimensionless parametersΦ k(=K m/K d),Φ x (=X α/e/X β/Se) andΦ v ( =X β/X α) were used to describe this extractive electrochemical reaction.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01084121
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