Abstract
This paper describes experimental investigations on electroless deposition of silver from an aqueous bath containing AgNO3 and N2H4 as the precursor for silver and the reductant, respectively. The kinetics and mechanism of the electrochemical oxidation and reduction processes are studied through the partial polarization plots using the concept of mixed potential theory. Behaviors of cathodic and anodic equilibrium potentials were determined with respect to [Ag+] and [N2H4], respectively. Thermodynamic expressions for the mixed potential Em and kinetic expressions for the mixed current im were derived by considering specific segments in superimposed cathodic and anodic partial polarization curves and from it to understand the mechanism of the process.
Published Version
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