Isopotential points in square-wave voltammetry of reversible electrode reactions

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Title:Isopotential points in square-wave voltammetry of reversible electrode reactions
Creators:
Zelić, Marina
Lovrić, Milivoj
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 74, 10, pp. 1489-1501
Uncontrolled Keywords:Backward current, Square-wave voltammetry, Isopotential point, Reversible electrode reaction, Electrochemistry, Europium(III), Uranium(VI)

Abstract

Isopotential points in square-wave voltammetry are described for the first time. Model calculations and real measurements (performed with UO<sub>2</sub><sup>2+</sup> and Eu<sup>3+</sup> in perchlorate and bromide solutions, respectively) indicate that such an intersection could be observed when backward components of the net response, resulting from an increase in frequency or reactant concentration, are presented together. The electrode reaction should be fully reversible because quasireversible or slower electron transfer processes give the isopoints only at increasing reactant concentrations but not at increasing square-wave frequencies. The effect could be used as an additional diagnostic criterion for recognition of reversible electrode reactions where products remain dissolved in the electrolyte solution.

Title:Isopotential points in square-wave voltammetry of reversible electrode reactions
Creators:
Zelić, Marina
Lovrić, Milivoj
Uncontrolled Keywords:Backward current, Square-wave voltammetry, Isopotential point, Reversible electrode reaction, Electrochemistry, Europium(III), Uranium(VI)
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:74
Number:10
Page Range:pp. 1489-1501
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc2009068UNSPECIFIED
ID Code:4781
Item Type:Article
Deposited On:17 Dec 2009 12:41
Last Modified:17 Dec 2009 11:41

Citation

Zelić, Marina; Lovrić, Milivoj (2009) Isopotential points in square-wave voltammetry of reversible electrode reactions. Collection of Czechoslovak Chemical Communications, 74 (10). pp. 1489-1501. ISSN 0010-0765

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