Application of double pulse theory for hemispherical microelectrodes to the experimental study of slow charge transfer processes

The use of differential pulse voltammetries to discriminate between the Butler–Volmer and the simple Marcus–Hush models for heterogeneous electron transfer: The electro-reduction of europium (III) in aqueous solution

“…For this system, very slow electron transfer has been reported with an a value considerably greater than 0.5, and no complications due to coupled chemical reactions or adsorption have been observed [34,37,38]. Therefore, this redox couple is an experimental system appropriate for the critical analysis of the Butler-Volmer and Marcus-Hush models, and the evaluation of the generality of the results previously obtained with electrochemical processes where a < 0.5.…”

“…Due to their one-dimensional symmetry, the use of electrodes of spherical geometry simplifies, and makes faster, numerical simulations, being possible to include ohmic drop and migration effects [30][31][32][33][34]. Moreover, given their small size, the charging current and ohmic drop effects are greatly reduced.…”

Additive Differential Pulse Voltammetry for the Study of Slow Charge Transfer Processes at Spherical Electrodes

“…The negligible effect of the iR-drop for the working conditions was also verified by numerical simulation [11].…”

Experimental comparison of the Butler–Volmer and Marcus–Hush–Chidsey formalisms of electrode kinetics: The reduction of cyclooctatetraene at mercury hemispherical electrodes via cyclic and square wave voltammetries

“…The possible occurrence of the uncompensated solution resistance (R u ) on the results in cyclic and square wave voltammetry was evaluated by digital simulation with a homemade program [40,41].…”