Abstract
Studies of boron-gluconate electrolyte for obtaining nanocrystalline Co–W coatings and its separation by molecular weights of the components is carried out by gel filtration. It is shown that boric acid (as a buffer agent) and sodium chloride (as the agent increasing conductivity) after being introduced into the electrolyte form certain gluconate complexes in the solution. The boron-gluconate complex has a larger molecular weight. Three fractions with different molecular weights including the fractions that contain Co-boron-gluconate and W-boron-gluconate complexes were obtained. It is shown that the formation of certain macromolecular complexes is a slow process, the consequence of which is the dependence of the bulk properties of the electrolyte on time.
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Original Russian Text © S.S. Belevskii, V.A. Buravets, S.P. Yushchenko, I.M. Zgardan, A.I. Dikusar, 2016, published in Elektronnaya Obrabotka Materialov, 2016, No. 4, pp. 38–43.
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Belevskii, S.S., Buravets, V.A., Yushchenko, S.P. et al. Gel-chromatographic separation of boron-gluconate electrolyte for obtaining nano-crystalline Co–W coatings: Composition and electrochemical activity of components. Part I. Gel-chromatographic study of electrolyte, separation and composition of components. Surf. Engin. Appl.Electrochem. 52, 350–355 (2016). https://doi.org/10.3103/S1068375516040049
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DOI: https://doi.org/10.3103/S1068375516040049