Author
E. P. Turevskaya
Other affiliations: Russian Academy of Sciences
Bio: E. P. Turevskaya is an academic researcher from Moscow State University. The author has contributed to research in topics: Alkoxide & Crystal structure. The author has an hindex of 16, co-authored 41 publications receiving 610 citations. Previous affiliations of E. P. Turevskaya include Russian Academy of Sciences.
Topics: Alkoxide, Crystal structure, Barium, Octahedron, Sol-gel
Papers
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Journal Article•
1 citations
TL;DR: The structure of I as determined by the X-ray diffraction (XRD) method features infinite chains made up of two alternating tetranuclear species [Li2WO]2(OMe)10] (A) and [Li 2WO)2OMe10(MeOH)2] (B), linked via LiOW bridges involving the Li atom belonging to fragment A and tungstenyl group from fragment B as discussed by the authors.
1 citations
TL;DR: In this paper, the preparation of complex oxides in the form of powders and thin films from metal alkoxides is discussed, focusing on ferroelectric and related materials -complex titanates and zirconates.
Abstract: Preparation of complex oxides in the form of powders and thin films from metal alkoxides is discussed. Most attention is paid to ferroelectric and related materials - complex titanates and zirconates. Techniques for preparation of high-purity morphologically homogeneous powders Ti2, ZrO2 barium titanate and BaTiO3-based solid solutions, MgTiO3, Bi2WO6, Bi2MoO6 are proposed and discussed wilh respect to their application in ceramics technology. The solutions prepared electrochemically in methoxyethanol were widely used for formation of thin films, e.g. Y2O3-stabilized ZrO2 and PZT solid solutions on Pt-coated silicon substrates.
TL;DR: In this paper, the purity of tert-BuOMgI·Et2O, obtained by different methods, was established employing IR spectroscopy and roentgenography, and a relation was established between the type of magnesium coordination existing in its oxonium compounds and the character of the IR spectrum in the region below 600 cm−1.
Abstract: 1.
The purity of the tert-BuOMgI·Et2O, obtained by different methods, was established employing IR spectroscopy and roentgenography.
2.
A relation was established between the type of magnesium coordination existing in its oxonium compounds and the character of the IR spectrum in the region below 600 cm−1.
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TL;DR: In this article, a unified overview of matrix nanocomposites is presented underlining the need for these materials, their processing methods and some recent results on structure, properties and potential applications, perspectives including need for such materials in future space mission and other interesting applications together with market and safety aspects.
Abstract: Nanocomposites, a high performance material exhibit unusual property combinations and unique design possibilities. With an estimated annual growth rate of about 25% and fastest demand to be in engineering plastics and elastomers, their potential is so striking that they are useful in several areas ranging from packaging to biomedical applications. In this unified overview the three types of matrix nanocomposites are presented underlining the need for these materials, their processing methods and some recent results on structure, properties and potential applications, perspectives including need for such materials in future space mission and other interesting applications together with market and safety aspects. Possible uses of natural materials such as clay based minerals, chrysotile and lignocellulosic fibers are highlighted. Being environmentally friendly, applications of nanocomposites offer new technology and business opportunities for several sectors of the aerospace, automotive, electronics and biotechnology industries.
1,032 citations
TL;DR: In this paper, a review of the synthesis and polymerization of aliphatic cyclic carbonates of different size and type is presented. And the mechanisms of cationic, anionic, coordination and enzymatic polymerization are discussed for obtaining polymers with well-defined structures and oligomers with reactive pendant and end groups.
465 citations
435 citations
TL;DR: The complex and metastable behavior of nonstoichiometric iron oxide (wüstite) at the nanoscale was studied by a combination of Mossbauer spectroscopy and magnetic characterization.
Abstract: We have investigated the structural, magnetic, and electronic properties of nonstoichiometric iron oxide nanocrystals prepared by decomposition of iron(II) and iron(0) precursors in the presence of organic solvents and capping groups. The highly uniform, crystalline, and monodisperse nanocrystals that were produced enabled a full structural and compositional survey by electron microscopy and X-ray diffraction. The complex and metastable behavior of nonstoichiometric iron oxide (wustite) at the nanoscale was studied by a combination of Mossbauer spectroscopy and magnetic characterization. Deposition from hydrocarbon solvents with subsequent self-assembly of iron oxide nanocrystals into superlattices allowed the preparation of continuous thin films suitable for electronic transport measurements.
384 citations
TL;DR: Ferroelectrics are dielectric materials that have spontaneous polarization in certain temperature range and show nonlinear polarization-electric field dependence called a hysteresis loop as discussed by the authors.
Abstract: There has been a resurgence of complex oxides of late owing to their ferroelectric and ferromagnetic properties. Although these properties had been recognized decades ago, the renewed interest stems from modern deposition techniques that can produce high quality materials and attractive proposed device concepts. In addition to their use on their own, the interest is building on the use of these materials in a stack also. Ferroelectrics are dielectric materials that have spontaneous polarization in certain temperature range and show nonlinear polarization–electric field dependence called a hysteresis loop. The outstanding properties of the ferroelectrics are due to non-centro-symmetric crystal structure resulting from slight distortion of the cubic perovskite structure. The ferroelectric materials are ferroelastic also in that a change in shape results in a change in the electric polarization (thus electric field) developed in the crystal and vice versa. Therefore they can be used to transform acoustic wav...
369 citations