Potential step cyclic voltammetry for the study of electrode reaction mechanisms

A general computational strategy is presented for the calculation of the chronoamperometric responses arising from potential-step experiments at rotating disc electrodes. The method is applicable to a wide range of electrode reaction mechanisms and theoretical results are given for single- and double-potential-step experiments for ECE, DISP1, DISP2, EC' and CE reactions. For the last, the treatment is extended to cover the case where reactants have grossly unequal diffusion coefficients. Steadystate behaviour is also deduced. The extent to which the various mechanistic pathways can be distinguished is identified and the necessary experiments defined.

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Theory and application of potential-step transmission chronoabsorptometry of long-pathlength spectroelectrochemical cells: single reversible electrode reaction

Analytical Chemistry ◽

10.1021/ac00062a013 ◽

1993 ◽

Vol 65 (14) ◽

pp. 1888-1892 ◽

Cited By ~ 10

Author(s):

Qingji. Xie ◽

Wanzhi. Wei ◽

Lihua. Nie ◽

Shouzhuo. Yao

Keyword(s):

Electrode Reaction ◽

Potential Step

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Automatically Identifying Electrode Reaction Mechanisms Using Deep Neural Networks

Analytical Chemistry ◽

10.1021/acs.analchem.9b01891 ◽

2019 ◽

Vol 91 (19) ◽

pp. 12220-12227 ◽

Cited By ~ 1

Author(s):

Gareth F. Kennedy ◽

Jie Zhang ◽

Alan M. Bond

Keyword(s):

Neural Networks ◽

Reaction Mechanisms ◽

Deep Neural Networks ◽

Electrode Reaction

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Identifying Electrode Reaction Mechanisms with a Cyclic form of Osteryoung Square Wave Voltammetry

ECS Meeting Abstracts ◽

10.1149/ma2006-01/31/1060 ◽

2006 ◽

Keyword(s):

Reaction Mechanisms ◽

Square Wave Voltammetry ◽

Electrode Reaction ◽

Cyclic Form ◽

Square Wave ◽

Wave Voltammetry

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Hammett-Streitwieser Reaction Constants for the Electroreduction of Diaryl Ketones in Aprotic Media

Australian Journal of Chemistry ◽

10.1071/ch9960901 ◽

1996 ◽

Vol 49 (8) ◽

pp. 901 ◽

Cited By ~ 3

Author(s):

E Wagnerczauderna ◽

MK Kalinowski

Keyword(s):

Cyclic Voltammetry ◽

Dimethyl Sulfoxide ◽

Propylene Carbonate ◽

Radical Anion ◽

Electrode Reaction ◽

Hexamethylphosphoric Triamide ◽

Ketyl Radical ◽

Donor Numbers ◽

Reaction Constants ◽

Solvent Acidity

Cyclic voltammetry has been used to measure formal potentials of seven aromatic ketone/ketyl radical anion systems in benzonitrile, acetonitrile , propylene carbonate, acetone, N,N- dimethylformamide, N-methylpyrrolidin-2-one, dimethyl sulfoxide and hexamethylphosphoric triamide. The values measured in each solvent obey the Hammett- Streitwieser equation; the reaction constants were found to depend on the solvent acidity and basicity expressed by acceptor and donor numbers, respectively. The results are discussed in terms of the solvation of the products and reactants of the electrode reaction.

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