The combined influences of solution resistance and charge-transfer kinetics on microelectrode cyclic voltammetry

Internal flow in sessile droplets induced by substrate oscillation: towards enhanced mixing and mass transfer in microfluidic systems

“…If the electrodes were in the same space, the counter and working electrodes form a generator-collector system 55 in which the concentration of the analyte ([Fe (CN) 6 ] 3− ) near the working electrode is disturbed. A cyclic voltammetry test is used first to check the connectivity of the channel by comparing CV curves in the separated and merged conditions 56 . The CV is conducted using a 10 mmol/L K 3 [Fe (CN) 6 ]/K 4 [Fe (CN) 6 ] (1:1) in 0.5 mol/L KCl solution, with a scan window of −0.3 V to 0.6 V vs. Ag/AgCl reference electrode, and a scan rate of 0.1 V/s.…”

An improved algorithm for the numerical simulation of cyclic voltammetric curves affected by the ohmic potential drops and its application to the kinetics of bis(biphenyl)chromium(I) electroreduction

“…doi:10.1016/j.jelechem.2004. 10.001 methods of digital simulation of the electrode processes [5][6][7][8] for the integration of FickÕs diffusion equations. In turn, for the solutions based solely on a digital simulation, two different approaches can be distinguished, in which either the currents are calculated iteratively for a given potential [5][6][7] or the explicit, non-iterative calculation of the faradaic current is coupled with the calculation of the capacitive current, charging the electrode to the actual potential E [8] (a similar approach was used earlier by Rosenmund and Doblhofer [9] for the simulation of the chronoamperometric experiment with the emission of electrochemiluminescence).…”

Theory of stationary current—potential curves at interdigitated microarray electrodes for quasi‐reversible and totally irreversible electrode reactions

“…Because they minimize uncompensated resistance, they are useful for the determination of kinetic parameters. Most studies on the electrode kinetics at microelectrodes have been directed to meamrements of time-dependent responses in pulse voltammetry [ l , 21, ac voltammetry [3-51, and cyclic voltammetry [6][7][8][9][10][11][12][13][14]. When the contribution of the lateral diffusion is large enough to establish a steady state, kinetic data can be obtained from the stationary voltammograms without using the transient response.…”