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Electrochemical Roughening of Thin-Film Platinum Macro and Microelectrodes
Published on: June 30, 2019
Non-linear sweep voltammetry of adsorbed species: theory and a method to determine formal potentials
Enno Kätelhön1, Richard G Compton
1Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University South Parks Road, Oxford, OX1 3QZ, UK.
Abstract:
Recent literature revealed the hitherto unexploited opportunities offered by unconventional cyclic voltammetry with non-triangular potential sweeps. We here investigate the implications of such techniques for the equilibrium voltammetry of surface-bound analytes and expose rather counter-intuitive effects: if only slightly different potential waveforms are applied, distinct and characteristic features arise in the voltammogram that can be readily exploited for quantitative analysis. Our work comprises a theoretical analysis and suggests initially a simple method to determine formal potentials.
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