ELECTRODEPOSITION OF GOLD IN AMMONIACAL MEDIUM - INFLUENCE OF SUBSTRATE AND TEMPERATURE

Authors
TREJO G GIL AF GONZALEZ I
Citation
G. Trejo et al., ELECTRODEPOSITION OF GOLD IN AMMONIACAL MEDIUM - INFLUENCE OF SUBSTRATE AND TEMPERATURE, Journal of Applied Electrochemistry, 26(12), 1996, pp. 1287-1294
Citations number
22
Categorie Soggetti
Electrochemistry
Journal title
Journal of Applied Electrochemistry → ACNP
ISSN journal
0021891X
Volume
26
Issue
12
Year of publication
1996
Pages
1287 - 1294
Database
ISI
SICI code
0021-891X(1996)26:12<1287:EOGIAM>2.0.ZU;2-H
Abstract
Gold electrodeposition was studied on glassy carbon and platinum elect rodes from Au(I) ammoniacal solution. The current transients obtained from potential step perturbations, show a typical metallic nucleation growth controlled by diffusion. This process is influenced by adsorpti on of the different chemical species on the surface. Change in the typ e of nucleation and morphology of the deposit was observed when the na ture of the substrate was changed. It was also found that increase in temperature produces modification of the nucleation mechanism.