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

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 ( η) which lead to the simu...

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Bibliographic Details
Published in:Electrochimica acta 2006-05, Vol.51 (20), p.4210-4217
Main Authors: Nava, J.L., Sosa, E., Carreño, G., Ponce-de-León, C., Oropeza, M.T.
Format: Article
Language:English
Subjects:
3D electrode
Concentration–time relationship
Copper
Diffusion-charge transfer mechanism
Effectiveness factor
Flow-by reactor
Mass transport
RVC
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Summary: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 ( η) which lead to the simulation of the concentration decay at different electrode polarisation conditions, i.e. −0.1, −0.3 and −0.59 V 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.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2005.12.002