Search Results - "Lermontov, A. S."

Hydrothermal synthesis and catalytic properties of superacid sulfated titania by Yurkova, L. L, Ivanov, V. K, Lermontov, A. S, Shaporev, A. S, Lermontov, S. A

“…The micromorphology and catalytic properties of nanocrystalline TiO₂/SO ₄ ²⁻ superacid systems prepared by a conventional sol-gel process, as well as…”
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Effect of Sol Concentration on Properties of Alumina Aerogels by Straumal, E. A., Gozhikova, I. O., Kottsov, S. Yu, Lermontov, S. A.

“…Alumina aerogels have been prepared from aluminum chloride hexahydrate using propylene oxide as a gelation agent followed by supercritical drying in CO 2 …”
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How to Tune the Alumina Aerogels Structure by the Variation of a Supercritical Solvent. Evolution of the Structure During Heat Treatment by Lermontov, S. A, Straumal, E. A, Mazilkin, A. A, Zverkova, I. I, Baranchikov, A. E, Straumal, B. B, Ivanov, V. K

“…Alumina aerogels are obtained by supercritical drying (SCD) in four solvents of different chemical natures. The phase transformations, the morphological…”
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Stability of Ionogels upon Contact with Water: Effect of Polymer Matrix Hydrophobicity and Ionic Liquid Solubility by Kottsov, S. Yu, Badulina, A. O., Trufanova, E. A., Taran, G. S., Baranchikov, A. E., Nelyubin, A. V., Malkova, A. N., Nikiforova, M. E., Lermontov, S. A., Ivanov, V. K.

“…New composite materials (ionogels) have been obtained based on imidazolium ionic liquids immobilized in highly porous polymers, i.e., polyamide 6,6 (nylon 6,6)…”
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Scintillation Material Based on SiO2 Aerogel Containing Highly Dispersed Bi4Ge3O12 by Veselova, V. O., Gajtko, O. M., Sipyagina, N. A., Volodin, V. D., Lermontov, S. A., Egorysheva, A. V.

“…The possibility to prepare transparent scintillation composite materials based on SiO 2 aerogels with Bi 4 Ge 3 O 12 filler has been shown for the first time…”
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Hierarchical highly porous composite ceramic material modified by hydrophobic methyltrimetoxysilane-based aerogel by Lermontov, S. A., Buznik, V. M., Sipyagina, N. A., Bespalov, A. S., Malkova, A. N., Grashchenkov, D. V., Baranchikov, A. E.

“…A highly porous composite material consisting of silicon dioxide microfibers filled with nanoporous methyltrimethoxysilane-based aerogel was synthesized by a…”
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Luminescent alumina-based aerogels modified with tris(8-hydroxyquinolinato)aluminum by Yorov, Kh. E., Yapryntsev, A. D., Baranchikov, A. E., Khamova, T. V., Straumal, E. A., Lermontov, S. A., Ivanov, V. K.

“…A facile procedure was developed for the production of Al 2 O 3 aerogels modified with tris(8-hydroxyquinolinato)aluminum complex (AlQ 3 ). The addition of…”
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SiO2–TiO2 Binary Aerogels: A Small-Angle Scattering Study by Baranchikov, A. E., Kopitsa, G. P., Yorov, Kh. E., Sipyagina, N. A., Lermontov, S. A., Pavlova, A. A., Kottsov, S. Yu, Garamus, V. M., Ryukhtin, V., Ivanov, V. K.

“…Structural analysis in the range of characteristic sizes from 1 nm to ~1.5 µm was performed for SiO 2 –TiO 2 aerogels prepared in supercritical CO 2 ,…”
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The Effect of Sulfating Agent Nature on the Catalytic Activity Tin Dioxide Aerogel by Straumal, E. A., Yurkova, L. L., Baranchikov, A. E., Kazachenko, V. P., Fursova, T. N., Lermontov, S. A.

“…Tin dioxide aerogels have been prepared using propylene oxide as a gelating reagent followed by supercritical drying in CO 2 . The surface of the resultant…”
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Comparative Analysis of Superhydrophobic Elastic Polymethylsilsesquioxane Aerogels Prepared at Atmospheric Pressure and under Supercritical Conditions by Lermontov, S. A., Malkova, A. N., Kolmakova, A. A., Sipyagina, N. A., Kottsov, S. Yu, Baranchikov, A. E., Ivanova, O. S., Kaplan, M. A., Baikin, A. S., Kolmakov, A. G., Ivanov, V. K.

“…—The influence of the conditions of drying elastic polymethylsilsesquioxane aerogels (at atmospheric pressure, during supercritical drying in CO 2 or methanol)…”
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Propylene oxide as a new reagent for mixed SiO 2 -based aerogels preparation by Lermontov, S A, Malkova, A N, Sipyagina, N A, Straumal, E A, Baranchikov, A E, Ivanov, V K

“…A two-stage technique is developed to synthesize SiO2-based aerogels using propylene oxide as a reagent. By this technique, we were able to synthesize mixed…”
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Is Supercritical So Critical? The Choice of Temperature to Synthesize SiO2 Aerogels by Lermontov, S. A., Baranchikov, A. E., Sipyagina, N. A., Malkova, A. N., Kopitsa, G. P., Yorov, Kh. E., Ivanova, O. S., Len, A., Ivanov, V. K.

“…The structure of SiO 2 -based materials obtained by hydrolysis of tetraethoxysilane and subsequent drying of SiO 2 lyogels at temperatures from 85 to 265°C has…”
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Transient studies of the elementary steps of Fischer–Tropsch synthesis by Khodakov, A.Y., Peregryn, B., Lermontov, A.S., Girardon, J.-S., Pietrzyk, S.

“…The pulse transient method has been used to study the kinetics of several key steps of Fischer–Tropsch (FT) synthesis over cobalt supported catalysts. These…”
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Sulfated Halloysite Nanoscrolls as Superacid Catalysts for Oligomerization of Hexene-1 by Krasilin, A. A., Straumal, E. A., Yurkova, L. L., Khrapova, E. K., Tomkovich, M. V., Shunina, I. G., Vasil’eva, L. P., Lermontov, S. A., Ivanov, V. K.

“…Possibility of creating superacid catalysts on the basis of sulfated hydrosilicate nanoscrolls with halloysite structure and catalytic activity of the…”
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SiO2–TiO2 binary aerogels: Synthesis in new supercritical fluids and study of thermal stability by Yorov, Kh. E., Sipyagina, N. A., Baranchikov, A. E., Lermontov, S. A., Borilo, L. P., Ivanov, V. K.

“…A comparative analysis of properties of SiO 2 –TiO 2 binary aerogels prepared by supercritical drying using different supercritical fluids (isopropanol,…”
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An approach for highly transparent titania aerogels preparation by Lermontov, S.A., Straumal, E.A., Mazilkin, A.A., Baranchikov, A.E., Straumal, B.B., Ivanov, V.K.

“…•Transparent TiO2 aerogels are prepared in methyl and ethyl glycols.•Transparent aerogels are X-Ray amorphous and have a high Ssp greater than 500 m2/g.•i-PrOH…”
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Tin Dioxide-Based Superacid Aerogels Produced Using Propylene Oxide by Lermontov, S. A., Yurkova, L. L., Straumal, E. A., Baranchikov, A. E., Shunina, I. G., Knerel’man, E. I., Ivanov, V. K.

“…Tin dioxide-based aerogels were produced by supercritical drying of gels, synthesized using propylene oxide, in CO 2 and isopropanol. Aerogels consisted of…”
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Comparative analysis of the physicochemical characteristics of SiO2 aerogels prepared by drying under subcritical and supercritical conditions by Lermontov, S. A., Malkova, A. N., Sipyagina, N. A., Yorov, Kh. E., Kopitsa, G. P., Baranchikov, A. E., Ivanov, V. K., Pipich, V., Szekely, N. K.

“…SiO 2 -based aerogels have been produced be removing a solvent (ethanol or hexafluoroisopropanol) from lyogels both above and below the critical temperature of…”
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Methyl tert-butyl ether as a new solvent for the preparation of SiO2–TiO2 binary aerogels by Yorov, Kh. E., Sipyagina, N. A., Malkova, A. N., Baranchikov, A. E., Lermontov, S. A., Borilo, L. P., Ivanov, V. K.

“…SiO 2 –TiO 2 binary aerogels have been synthesized for the first time using methyl tert -butyl ether as supercritical fluid. It has been shown that the…”
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Sulfated SnO2 As a high-performance catalyst for alkene oligomerization by Yurkova, L. L., Lermontov, S. A., Kazachenko, V. P., Ivanov, V. K., Lermontov, A. S., Baranchikov, A. E., Vasil’eva, L. P.

“…Nanoparticulate (3–5 nm) sulfated tin dioxide shows high catalytic activity for the oligomerization of isobutylene, hexene-1, and cyclohexene. The acidity…”
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