Gold-Reducing Cathode Reactions Kinetics in Acid Thiourea Electrolytes
Affiliation:
1 National Technical University "Kharkiv Polytechnic Institute"
2, Kyrpychova St., 61002 Kharkiv, Ukraine
2 O.M. Beketov National University of Urban Economy in Kharkiv
17, Marshal Bazhanov St., 61002 Kharkiv, Ukraine
oleleo1970@gmail.com; opilipenko1984@gmail.com
DOI:
https://doi.org/10.23939/chcht17.02.237
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Abstract:
The kinetics of cathode reactions occurring on a gold electrode in acidic thiourea-citrate electrolytes has been studied. Using classical electrochemical methods (potentiometry, chronovoltammetry, electrogravimetry) and graphic-analytical calculations, the following were established: the instability constant of gold complexes, the type of kinetics, the nature of the delayed stage, and the main kinetic characteristics of the electrochemical reaction during gold deposition.
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