The investigation and modeling of two metals codeposition process
By Piotr M. Skita? and Przemys?aw T. Sanecki and Dorota Saletnik
Published in Journal of Electroanalytical Chemistry
2016
Abstract
A codeposition of bismuth and lead from Bi3+/Bi2+/Bi+/Bi0 and Pb2+/Pb+/Pb0 systems in 0.5 M \KNO3\ (pH = 1) was investigated by cyclic voltammetry technique. The process was recognized as electrocatalytic and depicted by the two-plate model including Brunauer, Emmett and Teller (BET) adsorption expression. The model recreates all of the not resolved responses of two electronation/deelectronation couples. An alteration of electrode surface throughout electrode reaction is integrated with the model. It was proved that cyclic voltammetry (CV) method and two-plate approach is adequate to achieve a complete depiction of considered codeposition process. The estimated values of electrochemical kinetic parameters as well as the two-plate model with its \BET\ adsorption expression were validated and discussed.