Zobrazeno 1 - 10
of 36
pro vyhledávání: '"V. M. Boychuk"'
Autor:
V. M. Boychuk, R.I. Zapukhlyak, R.G. Abaszade, V.O. Kotsyubynsky, M.A. Hodlevsky, B.I. Rachiy, L.V. Turovska, A.M. Dmytriv, S.V. Fedorchenko
Publikováno v:
Фізика і хімія твердого тіла, Vol 23, Iss 4, Pp 815-824 (2022)
Ultrafine NiFe2O4 (T0) and NiFe2O4 / rGO composites have been synthesized by solution combustion method. The presence of rGO in the composite (33 wt.% (T1) or 66 wt.% (T2)) causes a decrease in the average particle size of the oxide phase from 16 to
Externí odkaz:
https://doaj.org/article/bf7a91b337bc4cfb9f5c80198f0e8b4f
Publikováno v:
Фізика і хімія твердого тіла, Vol 20, Iss 1, Pp 63-68 (2019)
The paper presents the experimental results of the hydrothermal synthesis composite materials based on the MoS2 and carbon using different types of detergents (cetyltrimethylammonium bromide and Triton-X) or microporous carbon. The synthesized materi
Externí odkaz:
https://doaj.org/article/e457e00d300a4b32882832ebb4721dda
Publikováno v:
Фізика і хімія твердого тіла, Vol 16, Iss 2, Pp 271-275 (2016)
Using cluster models for cubic sphalerite for stoichiometric ZnX, X = S, Se, Te crystal was spentcalculation of values of thermodynamic parameters under normal conditions, and was defined the analyticalexpressions of temperature dependences of energy
Externí odkaz:
https://doaj.org/article/32545f8f3f384fd081734243916bba29
Publikováno v:
Journal of Vasyl Stefanyk Precarpathian National University, Vol 3, Iss 1, Pp 65-70 (2016)
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 co
Externí odkaz:
https://doaj.org/article/86326a566de245a69cf35e8e000f0bba
Publikováno v:
Фізика і хімія твердого тіла, Vol 17, Iss 4, Pp 504-506 (2017)
Energy substitution of cations and anions in ZnTe i CdTe by atoms from first and seventh group of the periodic table were calculated using the method of bonding orbitals. Based on the results conclusions about the most likely types of defects by dopi
Externí odkaz:
https://doaj.org/article/eff572b494e5430599e37204f607c8ee
Autor:
M.A. Hodlevskyi, I. M. Budzulyak, Ruslan Zapukhlyak, L.V. Turovska, A. I. Kachmar, V. M. Boychuk, V.O. Kotsyubynsky, M.A. Hodlevska
Publikováno v:
Фізика і хімія твердого тіла, Vol 22, Iss 2, Pp 372-379 (2021)
The aim of this paper is to compare the structural, morphological and electrical properties of the CuFe2O4 and CuFe2O4 / reduced graphene oxide composite. XRD and Mossbauer studies have shown that joint hydrothermal synthesis of cubic copper ferrite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::389bb139180ab639763b3733c74b4692
https://doi.org/10.15330/pcss.22.2.372-379
https://doi.org/10.15330/pcss.22.2.372-379
Autor:
Denys S. Butenko, Nickolai I. Klyui, P. I. Kolkovsky, I. V. Zatovsky, Shilin Li, V. M. Boychuk, Volodymyr Kotsyubynsky, V.I. Dubinko, N.A. Liedienov, Wei Han
Publikováno v:
International Journal of Hydrogen Energy. 46:21462-21474
The creation of carbon matrices with a high surface area for effective catalytic activity is an urgent task today, especially in the field of electrocatalysis. In this study, microporous carbon (MPS) with a surface area of about 1300 m2 g−1 was pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18a08f8b5b7b32dd61a97def39357fdd
https://doi.org/10.1016/j.ijhydene.2021.03.242
https://doi.org/10.1016/j.ijhydene.2021.03.242
Autor:
Andrii I. Kachmar, M.A. Hodlevska, Volodymyr Kotsyubynsky, Mykola Hodlevsky, I. P. Yaremiy, V. M. Boychuk, Ruslan Zapukhlyak, B. I. Rachiy
Publikováno v:
Applied Nanoscience. 12:1131-1138
Ultrafine copper ferrite CuFe2O4 and also CuFe2O4/rGO and CuFe2O4/Carbon composite materials were obtained using hydrothermal method. The effect of carbon component presence and thermal treatment in a range of 573–773 K on the phase state, morpholo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a376c830480508680eee3b2686f5db7
https://doi.org/10.1007/s13204-021-01773-z
https://doi.org/10.1007/s13204-021-01773-z
Autor:
S. V. Fedorchenko, M.A. Hodlevska, V. M. Boychuk, Volodymyr Kotsyubynsky, R. I. Zapukhlyak, A. I. Kachmar
Publikováno v:
Molecular Crystals and Liquid Crystals. 717:60-71
Cobalt–iron spinel/reduced graphene oxide composite material was obtained by one-step hydrothermal synthesis. XRD, low temperature nitrogen adsorption, Mossbauer spectroscopy, micro-Raman spectrosc...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60cfc6971757e9a9423250307a6d74b1
https://doi.org/10.1080/15421406.2020.1860529
https://doi.org/10.1080/15421406.2020.1860529
Autor:
B. I. Rachiy, O.R. Bilogubka, A.A. Malakhov, M.A. Hodlevska, Andrii I. Kachmar, I.M. Budzuliak, V. M. Boychuk, Ruslan Zapukhlyak, V.O. Kotsyubynsky
Publikováno v:
Фізика і хімія твердого тіла, Vol 22, Iss 1, Pp 31-38 (2021)
The aim of this paper is the comparison of structural, morphological and electrical properties of thermally extended graphite synthesized by chemical oxidation of graphite with sulfur of nitric acids at all other same conditions. Thermal treatments o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68f7c0a6d2f125bba8b6ad1fcaa91700
https://doi.org/10.15330/pcss.22.1.31-38
https://doi.org/10.15330/pcss.22.1.31-38