Journal of Electroanalytical Chemistry and Interfacial Electrochemistry
Linear sweep voltammetry. Ohmic drop and chemical polarization
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2022, Electrochimica ActaCitation Excerpt :Our model neglected the current response based on a partial charge transfer [36,37], a change in the double-layer capacitance, and the iR drop [41,42]. The Faradaic CV was obtained by cancelling the iR drop through electronic feedback to subtract the capacitive current [38–40]. A Faradaic CV can be obtained using macro-electrodes at low scan rates (<10 V/s) and micro-electrodes at high scan rates (>10 V/s) [26], which increase the current response.
Further investigation of the equivalence of staircase and linear scan voltammograms. II - Effects of electron transfer kinetics, Ohmic drop and double-layer charging
2017, Journal of Electroanalytical ChemistryElectrochemical processes for the environmental remediation of toxic Cr(VI): A review
2016, Electrochimica ActaCitation Excerpt :For a thermodynamically feasible reaction, the equilibrium cell potential (Ecell) must be positive to obtain negative free energy (ΔG) as illustrated in equation 12 [65,66], where n is the number of electrons transferred per mole and F is Faraday constant (96,485C/mol). However, the passage of current flow causes the shift of potential, which is called polarization [67]. It stems from three underlying causes: ohmic (ionic and electronic resistance), activation (reaction kinetics) and concentration (mass transport), leading to formation of overpotential (ŋ) as shown in equation 14.