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Gold-Reducing Cathode Reactions Kinetics in Acid Thiourea Electrolytes

Olha Smirnova1, Nataliia Rudachenko1, Oleksij Pylypenko2
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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Keywords:

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.
References: 

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