Abstract
Abstract A theoretical analysis of linear sweep voltammetry (LSV) in flooded-porous electrodes is treated for reversible (Nernstian) and first-order irreversible reactions. At low sweep rates, the ohmic potential drop within the electrode is negligible and concentration gradients are predominantly in the axial direction. The solution to the reversible case is mathematically simple, but the results are presented to understand the influence external mass-transfer resistance has on the voltammogram. For irreversible kinetics, a Green’s function technique is used to obtain an analytical solution to the diffusion equation. An analytical solution for the current as a function of the electrode dimensions, sweep rate and reaction kinetic parameters allows one to predict the voltammogram over a wide range of conditions. The analytical solution is used to develop correlations that enable the kinetic parameters (i.e. exchange current density per unit volume and the transfer coefficient) to be easily extracted from experimental data.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
