Zobrazeno 1 - 10
of 44
pro vyhledávání: '"I. V. Nikolaenko"'
Publikováno v:
Chimica Techno Acta, Vol 5, Iss 2, Pp 109-116 (2018)
Samples of La0.95Bi0.05Mn1-yCuyO3+δ (у=0.1-0.4) were prepared by solid-state synthesis. Additionally, the sample with nominal composition La0.95Bi0.05Mn0.7Cu0.3O3+δ was obtained using citrate-nitrate method. It was determined by X-ray diffraction
Externí odkaz:
https://doaj.org/article/fadaf8ae2ce346698a276850f11c54a8
Autor:
Z. A. Mikhaylovskaya, M. V. Morozova, E. S. Buyanova, S. A. Petrova, I. V. Nikolaenko, D. G. Kellerman
Publikováno v:
Chimica Techno Acta, Vol 4, Iss 2, Pp 120-127 (2017)
Single phase samples of bismuth molybdate, Bi26Mo10O69, doped with Mn on the bismuth sublattice and V, Fe on the molybdenum sublattice were found to crystallize in the triclinic Bi26Mo10O69 structure at low doping levels and in the monoclinic Bi26Mo1
Externí odkaz:
https://doaj.org/article/1188f3a0b0aa4a8dad647c64834c161c
Publikováno v:
Russian Journal of Inorganic Chemistry. 64:158-164
The solid solution La0.9Sr0.05Bi0.05Mn1 – yNiyO3 (y = 0.0–1.0) was obtained for the first time using the solid-phase method and studied. It has been found that the solid solution (y = 0.1–0.3) with a rhombo-hedral structure (space group R3c) ca
Publikováno v:
Russian Journal of Inorganic Chemistry. 63:1297-1302
Design of composites is a way to improve the quality of solid electrolytes. By mechanically mixing and annealing substituted bismuth vanadate with nanosized aluminum, bismuth, and zirconium binary oxides, we obtained heterogeneous materials Bi4V1.7Fe
Publikováno v:
Key Engineering Materials. 769:134-140
The results of experimental studies show that the use of composite powders (WC-Co) in combination with the modification by the additives of ceramic nanoparticles allows controlling the parameters of the microstructure and increasing the strength of t
Publikováno v:
Technical Physics. 63:398-406
The electrical properties of dual-phase fluorite-pervoskite oxide systems based on strontium titanate- ferrite (SrTi0.5Fe0.5O3–δ) are studied. We find that the oxygen ionic and ambipolar conductivities of strontium titanate-ferrite can be consider
Publikováno v:
International Journal of Materials Research. 109:83-86
A new method for the synthesis of ultrafine powder of chromium carbide is proposed, which combines liquid-phase precipitation on a carbon support and low-temperature microwave heat treatment in argon flow. The whole spectrum of the intermediate compo
Publikováno v:
Russian Journal of Applied Chemistry. 90:853-861
An integrated study was carried out of complex-oxide materials based substituted bismuth molybdate Bi26Mo10O69, which exhibit such potentially valuable characteristics as oxygen-ion conductivity at medium temperatures and catalytic activity. Compound
Autor:
I. V. Nikolaenko, Gennadii P. Shveykin
Publikováno v:
Key Engineering Materials. 733:51-55
In this work we propose a new method for synthesis of ultrafine powders of tungsten, titanium and vanadium carbides combining two methods – liquid-phase precipitation on carbon substrate and low-temperature microwave heat treatment in argon stream.
Autor:
I. V. Nikolaenko, Rina F. Samigullina, N. A. Zaitseva, M. V. Rotermel, T. A. Onufrieva, T. I. Krasnenko, A. V. Ishchenko
Publikováno v:
Russian Journal of Inorganic Chemistry. 62:269-274
A promising yellow phosphor, α-Zn2V2O7, was synthesized at temperatures below the phase transition temperature (610 ± 5°C) by three different methods: solid-phase and microwave processes and thermolysis of a water–salt composition. According to