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Документ Electrodeposited cobalt alloys as materials for energy technology(Cambridge University Press, 2013) Glushkova, M. A.; Bairachna, T.; Ved, M. V.; Sakhnenko, N. D.The influence of electrodeposition parameters on chemical composition, morphology and functional properties of such binary cobalt alloys as CoAg, CoW, and CoFe has been investigated. The alloys are shown to possess catalytic properties. Catalytic actuvity was preliminary estimated in the electrolytic hydrogen evolution reaction and tested by CO to CO2 conversion during the catalytic benzene oxidation.Документ Особливості одержання металоксидних каталітичних систем плазмово-електролітичним оксидуванням алюмінію та титану в пірофосфатних електролітах(НТУ "ХПІ", 2016) Сахненко, Микола Дмитрович; Ведь, Марина Віталіївна; Каракуркчі, Ганна Володимирівна; Горохівський, Андрій Сергійович; Галак, Олександр ВалентиновичВ роботі розглянуті особливості формування конверсійних покривів на сплавах алюмінію та титану методом плазмово-електролітичного оксидування у пірофосфатних електролітах. Досліджено вплив концентрації і співвідношення компонентів електроліту та режимів обробки на склад та морфологію поверхневих шарів. Визначено чинники, які забезпечують каталітичні властивості окремих і змішаних оксидних систем та окреслено перспективи їх використання у технологіях знешкодження токсичних речовин.Документ Functional properties of electrolytic alloys of Cobalt with Molybdenum and Zirconium(Institute for Single Crystals, 2016) Ved, M.; Koziar, M.; Sakhnenko, N. D.; Slavkova, M.Functional electrolytic alloy coatings Co-Mo and Co-Mo-Zr were deposited on substrates steel 3 from polyligand citrate-pyrophosphate bath using pulsed current. It was shown that the alloying components content, their distribution on the surface, morphology and topography of the coatings are depended on the electrolysis energetic parameters. It was established that the functional properties of the binary and ternary electrolytic cobalt alloys (corrosion resistance, catalytic activity in hydrogen evolution and carbon II oxide oxidation) are predetermined by material composition, morphology and relief of the surface. Stability Co-Mn, and Co-Mo-Zr systems in aggressive media due to increased susceptibility to passivity when the molybdenum and zirconium are in the coating is a prerequisite of their use for corrosion protection. The high level of the catalytic properties of Co-Mn, and Co-Mo-Zr associated with different affinities for alloying metals to oxygen and hydrogen evolution mechanism verification allows to recommend them for platinum metals replacement in heterogeneous catalysis.Документ Electrodeposition of catalytic ternary cobalt based coatings(Украинский государственный химико-технологический университет, 2015) Ved, M. V.; Sakhnenko, N. D.; Glushkova, M. A.; Hapon, Yu. K.; Kozyar, M. A.Consistent patterns for electrodeposition of Co-Mo-W and Co-Mo-Zr coatings from polyligand citrate-pyrophosphate bath were investigated. The effect of both current density amplitude and pulse on/off time on the quality, composition and surface topography of the galvanic alloys were determined. It was established the coating Co-Mo-Zr enrichment by alloying components with current density increasing as well as the rising of pulse time promotes the content of zirconium, and pause – molybdenum because of subsequent chemical reduction of its intermediate oxides by hydrogen ad-atoms. It was found that the content of the refractory metals in the coating Co-Mo-W depends on the current density and on/off times extremely and maximum Mo and W content corresponds to the current density interval 12–18 A·dm−2, on-/off-time 5–10 msec. It was shown that Co-Mo-W alloys exhibits the greatest level of catalytic properties as cathode material for hydrogen electrolytic production from acidic media which is not inferior a platinum electrode. The galvanic alloys Co-Mo-Zr with zirconium content 1.5–2.0 wt.% demonstrate high catalytic properties in the carbon oxide (II) oxidation. This confirms the efficiency of materials as catalysts for the gaseous wastes purification and gives the reason to recommend them as catalysts for hydrocarbon combustion.