Isopotential points in square-wave voltammetry of reversible electrode reactions (CROSBI ID 157303)
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Podaci o odgovornosti
Zelić, Marina ; Lovrić, Milivoj
engleski
Isopotential points in square-wave voltammetry of reversible electrode reactions
Isopotential points in square-wave voltammetry are described for the first time. Model calculations and real measurements (performed with UO22+ and Eu3+ 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.
square-wave voltammetry ; reversible electrode reaction ; backward current ; isopotential point ; Uranium(VI) ; Europium(III) ; electrochemistry
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Podaci o izdanju
74 (10)
2009.
1489-1501
objavljeno
0010-0765
10.1135/cccc2009068