Rezumat
CZU 541.138.2+620.3
The purpose of the given research has been to specify the route of formation of Co-W coatings. To this end, the gel permeation chromatographic separation of boron-gluconate electrolyte has been used, as well as the photocolorimentric determination of the composition of the separation products, and the evaluation of the electrochemical activity of these complexes in the pH range 4.0 to 8.0. As a result, it has been found out that the composition of the Co-W coatings thus formed is defined by the relation of the rates of the reduction of those heterometallic complexes (with the Co-W ratio 1:1) and Co complexes, as well as the reaction of hydrogen reduction, dependent on both the electrolyte pH and hydrodynamic conditions.
Keywords: nanocrystal coatings, heterometallic complexes, gel permeation chromatographic separation, Co-W, electrolytic coatings, induced codeposition, cyclic voltamperometry.