Modelling of the concentration–time relationship based on global diffusion-charge transfer parameters in a flow-by reactor with a 3D electrode

Nava, J.L., Sosa, E., Carreno, G., Ponce de Leon Albarran, C.A. and Oropeza, M.T. (2006) Modelling of the concentration–time relationship based on global diffusion-charge transfer parameters in a flow-by reactor with a 3D electrode. Electrochimica Acta, 51 (20), 4210-4217. (doi:10.1016/j.electacta.2005.12.002).

Abstract

A concentration versus time relationship model based on the isothermal diffusion-charge transfer mechanism was developed for a flow-by reactor with a three-dimensional (3D) reticulated vitreous carbon (RVC) electrode. The relationship was based on the effectiveness factor (?) which lead to the simulation of the concentration decay at different electrode polarisation conditions, i.e.?0.1,?0.3 and?0.59V versus SCE; the charge transfer process was used for the former and mix and a mass transport control was used for the latter. Charge transfer and mass transport parameters were estimated from experimental data using Electrochemical Impedance Spectroscopy (EIS) and Linear Voltammetry (LV) techniques, respectively.

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Contributors

Author: C.A. Ponce de Leon Albarran

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