The effect of periodic modulation on the aperiodic current in linear-scan and cyclic voltammetries

• Published in: Journal of electroanalytical chemistry (Lausanne, Switzerland) Vol. 516; no. 1; pp. 2 - 9
• Main Authors: Gavaghan, David J, Myland, Jan C, Oldham, Keith B
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 14.12.2001; Elsevier Science
• Subjects: Ac voltammetry; Chemistry; Cyclic voltammetry; Electrochemistry; Exact sciences and technology; General and physical chemistry; Linear-scan voltammetry; Modulated ramps; Sawtooth-wave voltammetry; Square-wave voltammetry; Staircase voltammetry; Cyclic voltammetry; Linear-scan voltammetry; Modulated ramps; Square-wave voltammetry; Ac voltammetry; Staircase voltammetry; Sawtooth-wave voltammetry; Sawtooth; Current time characteristic; Direct current; Modulation; Square wave

The modulation of a ramped potential applied to a voltammetric electrode evokes two responses: a quasiperiodic ‘ac’ current of the same periodicity as the modulation, and a perturbation of the underlying dc current. The latter is the subject of this article. Reasoning by analogy with an analytical r...