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Oleksandra Yevtushenko, Vladyslav Piskarov, Harald Natter, Rolf Hempelmann

Electrochemical Nucleation and Growth Kinetics of Nanostructured Gold on Rotating Disc and Stationary Electrodes

Keywords: Nucleation, Kinetics, Growth, nanostructure

The kinetics of the electrocrystallization of nanostructured gold is investigated on both rotating disc and stationary glassy carbon electrodes. A possible mechanism of gold deposition is presented. A general expression of the current-time transient for the superposition of adsorption, three-dimensional nucleation and mixed charge transfer/diffusion controlled growth based on existing theories is reported for the kinetics on stationary electrodes. The experimentally recorded current-time transients are analyzed in terms of this model. Kinetic parameters are determined and their consequence is discussed.

Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0942-9352
Volume: 221, 09/2007
Pages: 1191 - 1207

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