http://hdl.handle.net/123456789/281 2026-05-14T08:52:58Z 2026-05-14T08:52:58Z Rachiy, Bogdan Kuzyshyn, M. Nykoliuk, M. Merena, R. Lisovskyi, R. Рачій, Богдан Іванович http://hdl.handle.net/123456789/5323 2025-05-28T08:58:45Z 2016-01-01T00:00:00Z

Title: The Influence Of Modification Of The Surface Of Nanoporous Carbon Material By The Oxides Of Metals Authors: Rachiy, Bogdan; Kuzyshyn, M.; Nykoliuk, M.; Merena, R.; Lisovskyi, R.; Рачій, Богдан Іванович Abstract: Nitrogen containing carbon materials with metal of oxides (Fe, Ni, Co) prepared by the chemical precipitation method have been shown to be outstanding novel materials for electrochemical capacitors. The electrochemical properties of the electrodes have been studied by considering the effect of the mole ratio of metals. Cyclic voltammetric measurements indicate that nickel, cobalt and iron oxides increase specific capacity of electrochemical capacitors up to 260 F/g in 30% KOH electrolyte. Impedance studies show that the enhanced electrical properties and high frequency response are attributed to the presence of Fe oxides.

2016-01-01T00:00:00Z Yaremiy, I. Tomyn, U. Yaremiy, S. Lukanyuk, M. Hodovska, H. Katrych, Yu. http://hdl.handle.net/123456789/5322 2023-03-14T13:55:33Z 2016-01-01T00:00:00Z

Title: Numerical Calculation Of Extinction Coefficient For Dislocation Loops With A Certain Orientation Authors: Yaremiy, I.; Tomyn, U.; Yaremiy, S.; Lukanyuk, M.; Hodovska, H.; Katrych, Yu. Abstract: Approximation formulas for the calculation of extinction coefficients in a wide range of radii and concentrations of dislocation loops oriented in certain directions were obtained. It was shown that received expressions make it possible to quickly calculate with satisfactory accuracy the angular dependence of extinction coefficient and speed up the calculation of theoretical rocking curves.

2016-01-01T00:00:00Z Sehin, Ya. M. Budzulyak, Ivan Morushko, O. V. Yablon, L. S. http://hdl.handle.net/123456789/5321 2020-08-10T07:50:43Z 2016-01-01T00:00:00Z

Title: Thermodynamic Parameters Of The Intercalation Reaction In Thermal And Laser Modified Nanodispersed Anatase Authors: Sehin, Ya. M.; Budzulyak, Ivan; Morushko, O. V.; Yablon, L. S. Abstract: It is modified matrix of anatase in turn of the thermal and laser treatments. The dependence of Gibbs energy change of the intercalation reaction of lithium with the guest load degree change was analyzed. Laser irradiation turned out to increase twice the value of maximum lithium “guest” loading, constricting heterophase area and changing contrarily concentration genesis of temperature dependence of entropy of lithium dilution. The optimal conditions of laser irradiation nanodispersive anatase (pulse energy E = 0,02 J, pulse duration τ = 15 ns repetition frequency f = 28 Hz, duration of exposure to 5 min.), at which specific energy characteristics of LPS, formed on its basis, increased by 55% is set.

2016-01-01T00:00:00Z Gorichok, I. Shevchuk, M. Boychuk, Volodymyra http://hdl.handle.net/123456789/5320 2021-12-20T10:19:53Z 2016-01-01T00:00:00Z

Title: Thermodynamics Of The Point Defects In The Metallic Phase Of The Samarium Monosulphide Authors: Gorichok, I.; Shevchuk, M.; Boychuk, Volodymyra Abstract: The equilibrial values of the vacancy concentration of chalcogen and antistructural samarium atoms in metallic phase of SmS were calculated by minimization the crystal thermodynamic potential. It was determined that the dominant defects are at the concentration of samarium 50,5-54 at. % and at the temperature of T=300-400 K. Also the concentration of negatively charged sulfur vacancies is less on 1-2 points. The concentric dependence of samarium monosulphide density was explained using this offered model.

2016-01-01T00:00:00Z