Naslov
Theory of square-wave voltammetry of two electrode reactions coupled by reversible chemical reaction

Autori
Komorsky-Lovrić, Šebojka ; Lovrić, Milivoj

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zbornik sažetaka 4. Dan Elektrokemije / Komorsky-Lovrić, Šebojka ; Vukosav, Petra ; Jadreško, Dijana - Zagreb : Institut Ruđer Bošković, 2014, 20-21

Skup
4. Dan Elektrokemije

Mjesto i datum
Zagreb, Hrvatska, 04.04.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
square-wave voltammetry; two electrode reactions coupled by reversible chemical reaction

Sažetak
Two electrode reactions are coupled by a chemical reaction if the product of the first electrode reaction is the reactant of chemical reaction and the product of the latter is a reactant of the second electrode reaction [1]. This mechanism is marked by the acronym ECE. In this communication the following reactions are investigated: A B+ + e- (1) B+ + X- C (2) C D+ + e- (3) It is assumed that the compound X- is present in great excess, so that the variation of its concentration can be neglected. If both electrode reactions (1) and (3) are fast and reversible, square-wave voltammograms of the ECE mechanism depend on the difference in standard potentials and and on the dimensionless constant K1, which is the product of the equilibrium constant of chemical reaction (2) and the concentration of compound X-. For equal standard potentials the responses are split in two peaks if either K1 > 100 or K1 < 0.01.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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