Zobrazeno 1 - 10
of 48
pro vyhledávání: '"L L, Kovalenko"'
Autor:
V. V. Shevchenko, M. A. Gumenna, N. S. Klimenko, O. V. Stryutsky, V. V. Trachevsky, L. L. Kovalenko, V. V. Kravchenko
Publikováno v:
Theoretical and Experimental Chemistry. 58:143-149
Autor:
V. V. Shevchenko, A. G. Belous, A. V. Stryutsky, L. L. Kovalenko, N. S. Klimenko, M. A. Gumenna, A. M. Pilipenko
Publikováno v:
Theoretical and Experimental Chemistry. 57:429-436
Autor:
L. L. Kovalenko, O. I. V’yunov, Alexander A. Ishchenko, Anatolii Belous, P. V. Torchyniuk, I. V. Kurdyukova
Publikováno v:
Theoretical and Experimental Chemistry. 57:113-120
The influence of DMF and DMSO solvents on the properties of organic–inorganic perovskite films obtained at the ratio of starting reagents PbI2:CH3NH3I = 1:2 was studied. It was found that a dense film is formed from solutions in DMSO. XRD and fluor
Autor:
Anatolii Belous, I. A. Slobodyanyuk, S. S. Fomanyuk, M. O. Danilov, Gennadii Ya Kolbasov, L. L. Kovalenko, Vitaliy O. Smilyk, I. A. Rusetskii
Publikováno v:
ECS Transactions. 99:221-227
A ceramic Li conducting membrane which consist from Li0.56La0.33TiO3 and an ion-conducting membrane MF4-SK (Nafion type) have been investigated in solutions with different pH values. It was found that the MF4-SK and LiLaTiO3 membranes work effectivel
Publikováno v:
Ukrainian Chemistry Journal. 85:75-83
Solid solutions of barium titanate-stannate, Ba(Ti,Sn)O3 have been investigated. The sequence of phase transformations during the synthesis by solid state reactions technique has been determined, crystallographic and microscopic examinations of polyc
Autor:
I. O. Polishko, Oleksandr Vasylyev, Robert Steinberger-Wilckens, M. Brychevskyi, L. L. Kovalenko, Yehor Brodnikovskyi, Nikkia McDonald, D. M. Brodnikovskyi, A. G. Belous, I. V. Brodnikovska
Publikováno v:
Materials Today: Proceedings. 6:26-35
There has been studied the effect of addition of 3.5YSZ (3.5-mol. % yttria stabilized zirconia) to 10Sc1CeSZ (10-mol. % scandia and 1 mol. % ceria stabilized zirconia) on the mechanical and electrical properties of the composite ceramics. As a base f
Publikováno v:
Materials Today: Proceedings. 6:237-241
The tape casted SOFC was elaborated with newly developed 8YSZ zirconia powder using zircon-sand of Ukrainian zircon deposit. The 8YSZ powder has unisized distribution of initial particles and is practically non-agglomerated. In a bulk state after uni
Publikováno v:
Applied Nanoscience. 9:767-773
The microstructure, crystal chemical parameters and electrical–physical properties of samples of barium titanate-based dielectric and semiconductor ceramics were investigated in a wide frequency range. The contributions of different nanointerfaces
Autor:
L. L. Kovalenko, B.O. Liniova, Anatolii Belous, E. I. Boldyrev, S.D. Kobylianska, G. Kolbasov
Publikováno v:
Journal of Solid State Electrochemistry. 22:2315-2320
The Li0.33Lia0.56TiO3 and Li1.3Ti1.7Al0.3(PO4)3 ceramics with the structures of defect-perovskite and NASICON structures with conductivity of 1–6 × 10−6 S/cm at the room temperature are obtained. Ceramic electrolytes were developed for a solid-s
Autor:
Anatolii Belous, Oleksandr Vasylyev, Yehor Brodnikovskyi, L. L. Kovalenko, Oleg V'yunov, O. Z. Yanchevskii
Publikováno v:
French-Ukrainian Journal of Chemistry. 6:16-20
Weakly agglomerated zirconium dioxide nanopowders stabilized by complex oxides of scandium (III) and cerium (IV) were synthesized by precipitation from aqueous solutions. Using weakly agglomerated nanopowders, thick films were prepared by tape castin