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Electroanalytical study of dopamine oxidation on carbon electrodes: from the macro- to the micro-scale

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Abstract

The oxidation of dopamine in strongly acidic (pH = 0) solution is investigated using microdisc, microcylinder and macro-electrodes together with a range of voltage scan rates. Kinetic and mechanistic analysis over the full range of mass transport conditions show a behaviour consistent with an ECE process with a fast chemical step and in which the second electron transfer is thermodynamically more favourable than the first step. Accordingly the reaction effectively behaves as an EE process.

Graphical abstract: Electroanalytical study of dopamine oxidation on carbon electrodes: from the macro- to the micro-scale

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Publication details

The article was received on 03 Nov 2017, accepted on 22 Nov 2017 and first published on 04 Dec 2017


Article type: Paper
DOI: 10.1039/C7CP07450F
Citation: Phys. Chem. Chem. Phys., 2018, Advance Article
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    Electroanalytical study of dopamine oxidation on carbon electrodes: from the macro- to the micro-scale

    C. Lin, L. Chen, E. E. L. Tanner and R. G. Compton, Phys. Chem. Chem. Phys., 2018, Advance Article , DOI: 10.1039/C7CP07450F

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