Cyclic normal pulse voltammetry in the study of EC reactions (CROSBI ID 597291)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Jadreško, Dijana ; Zelić, Marina
engleski
Cyclic normal pulse voltammetry in the study of EC reactions
In this communication a theory of cyclic normal pulse voltammetry (CNPV) of a simple reversible electron transfer followed by irreversible chemical reaction is presented: Ox + ne- <---> Red - kf -> P where kf is the rate constant of chemical reaction. The effect of dimensionless chemical kinetic parameter, Kc = kf∙tp (where tp is the pulse duration), on CNP voltammogram was examined. Chemical reaction (i.e. increasing the value of Kc) changes the appearance of forward branch of voltammogram from wave to peak. The relationship between diffusion and maximum reduction current ratio and logarithm of Kc is analysed theoretically and the criterion for recognition of the EC mechanism is given. Experimentally, the value of kf can be estimated from the linear relationship of id/imax on log(tp).
cyclic normal pulse voltammetry; EC mechanism; theory
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Podaci o prilogu
114-114.
2013.
objavljeno
Podaci o matičnoj publikaciji
Fourth Regional Symposium on Electrochemistry South- East Europe
Milošev, I., Gaberšček, M.
Ljubljana: National Institute of Chemistry Ljubljana
978-961-6104-23-4
Podaci o skupu
Fourth Regional Symposium on Electrochemistry South- East Europe
poster
26.05.2013-30.05.2013
Ljubljana, Slovenija