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Articolul precedent |
Articolul urmator |
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SM ISO690:2012 BELEVSKII, Stanislav, BURAVETZ, Vladislav, YUSHCHENKO, Serghei, ZGARDAN, I., DIKUSAR, Aleksandr. Gel-chromatographic separation of boron-gluconate electrolyte for obtaining nano-crystalline Co–W coatings: Composition and electrochemical activity of components. Part I.. In: Surface Engineering and Applied Electrochemistry, 2016, nr. 4(52), pp. 350-355. ISSN 1068-3755. DOI: https://doi.org/10.3103/S1068375516040049 |
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Surface Engineering and Applied Electrochemistry | ||||||
Numărul 4(52) / 2016 / ISSN 1068-3755 /ISSNe 1934-8002 | ||||||
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DOI:https://doi.org/10.3103/S1068375516040049 | ||||||
Pag. 350-355 | ||||||
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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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Cuvinte-cheie boron-gluconate electrolyte, Co–W coatings, Electrodeposition, gel-chromotography, gel-filtration, induced codeposition |
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