Abstract
The rate and kinetics of electrochemical reduction of Cu2+ ions in aqueous and aqueous methylpyrrolidone electrolytes are found to depend on the structure of organic additives, which were derivatives of N-(2′-hydroxybenzyl)aniline with electron-donating or electron-withdrawing substituents. An increase in the content of cyclic lactam in the electrolyte is shown to result in the efficiency of all the additives studied, especially Cl-substituted compound. Electron microscopic studies revealed the substantial improvement of the microstructure of deposits obtained from aqueous methylpyrrolidone electrolytes containing aniline derivatives. Tribological and elastic characteristics of the coatings are improved, and microhardness increases in certain cases.
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