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Dive into the research topics where V. P. Danilov is active.

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Featured researches published by V. P. Danilov.


Russian Journal of Inorganic Chemistry | 2007

Synthesis of complex hydroxo salts of magnesium, nickel, cobalt, aluminum, and bismuth and oxide catalysts on their base

O. N. Krasnobaeva; I. P. Belomestnykh; G. V. Isagulyants; T. A. Nosova; T. A. Elizarova; T. D. Teplyakova; D. F. Kondakov; V. P. Danilov

Synthesis methods have been developed for the precursors of oxide catalysts that include the combination of magnesium nickel cobalt aluminum hydroxocarbonate, with a layered hydrotalcite-type structure and decavanadate and paramolybdate ions in the anion layers, and bismuth hydroxocarbonate. On the base of these precursors, multicomponent oxide catalysts have been manufactured for the oxidative dehydrogenation (OD) of light alkanes. Some of these catalysts showed high selectivities and high product yields in the conversion of ethane to ethylene.


Russian Journal of Inorganic Chemistry | 2011

Tantalum-containing catalysts for oxydehydrogenation of hydrocarbons and alcohols

O. N. Krasnobaeva; I. P. Belomestnykh; T. A. Nosova; T. A. Elizarova; G. V. Isagulyants; S. P. Kolesnikov; V. P. Danilov

The first methods are developed for introducing niobium(V) into Mg-Al hydrotalcites used as precursors of oxide catalysts for oxydehydrogenation (OD) of alkanes and alcohols. Samples of niobium(V)-containing oxide catalysts are synthesized. Their catalytic properties are studied in oxydehydrogenation of ethane and ethylbenzene to styrene, oxidation dehydrocyclization of octane into ethylbenzene and styrene, and oxydehydrogenation of sec-butanol to ketone (octane-(2)-one). It is ascertained that ethane transformation into ethylene is highly a selective highly process (92–97%) at low temperatures (450–500°C) in the presence of a niobium-containing catalyst; the catalyst is appreciably efficient in ethylbenzene transformation to styrene and dehydrocyclization of n-octane to ethylbenzene and styrene, and in oxydehydrogenation of secbutanol to octane-(2)-one. All the catalysts studied operate stably in OD reactions; no decrease in their activity or selectivity was detected after 50 h operation.


Theoretical Foundations of Chemical Engineering | 2012

Low-temperature anti-icing reagents in aqueous salt systems containing acetates and formiates

V. P. Danilov; E. A. Frolova; D. F. Kondakov; L. I. Avdushkina; A. V. Bykov; V. T. Orlova

Ice-melting polytherms in binary and ternary aqueous salt systems containing metal and ammonium acetates and formiates were studied in the temperature range of 0 to −70°C. A number of salt mixtures that form low-temperature eutectics with ice were revealed to be promising as a basis for the development of anti-icing reagents. The properties of these salt mixtures, such as ice-melting ability, the character of their action on cement concrete, and corrosion activity with respect to metals and alloys, were estimated. An efficient corrosion inhibitor was selected.


Russian Journal of Inorganic Chemistry | 2009

Chromium, vanadium, molybdenum, tungsten, magnesium, and aluminum hydrotalcite hydroxo salts and oxide catalysts on their base

O. N. Krasnobaeva; I. P. Belomestnykh; G. V. Isagulyants; T. A. Nosova; T. A. Elizarova; D. F. Kondakov; V. P. Danilov

A method is developed for the synthesis of chromium-containing catalysts for the oxidative dehydrogenation (ODH) of alkanes, comprising the precipitation, from nitrate solutions, of mixtures of isomorphic hydrotalcite-type magnesium aluminum and magnesium chromium hydroxocarbonates and the incorporation of oxovanadate, oxomolybdate, and oxotungstate ions by means of anion exchange and subsequent heat treatment. A series of oxide catalyst samples with progressively more complex compositions were prepared: Mg-Al, V-Mg-Al, V-Mo-Mg-Al, Cr-V-Mg-Al, Cr-V-Mo-Mg-Al, and Cr-V-Mo-W-Mg-Al. The catalytic properties of these complex oxides in the ODH of ethane and propane are improved with progressively complex compositions. Chromium-containing catalysts have higher selectivities and provide higher conversions compared to state-of-the-art iron- and nickel-containing oxides.


Russian Journal of Inorganic Chemistry | 2007

Synthesis and crystal structure of new complex sodium lanthanide phosphate molybdates Na2MIII(MoO4)(PO4)(MIII = Tb, Dy, Ho, Er, Tm, Lu)

M. A. Ryumin; L. N. Komissarova; D. A. Rusakov; A. P. Bobylev; M. G. Zhizhin; A. V. Khoroshilov; K. S. Gavrichev; V. P. Danilov

New complex sodium lanthanide phosphate molybdates Na2MIII(MoO4)(PO4)(MIII=Tb, Dy, Ho, Er, Tm, Lu) have been synthesized by the ceramic method (T = 600°C, τ = 48 h), and their unit cell parameters have been determined. The structures of Na2MIII(MoO4)(PO4)(MIII = Dy, Ho, Er, Lu) were refined by the Rietveld method. The compounds are isostructural: they are orthorhombic (space group Ibca, Z = 8) and have layered structures. In the structures of phosphate molybdates, chains of MIIIO8 polyhedra and MoO4 tetrahedra are linked by PO4 tetrahedra to form layers. The MoO42− anions are involved in dipole-dipole interaction. The sodium ions are arranged in the interlayer space. The compounds melt incongruently at 850–870°C.


Russian Journal of Inorganic Chemistry | 2009

Tungsten-containing catalysts for oxidative dehydrogenation of hydrocarbons

O. N. Krasnobaeva; I. P. Belomestnykh; G. V. Isagulyants; S. P. Kolesnikov; T. A. Nosova; T. A. Elizarova; V. P. Danilov

Methods for introducing tungsten into the precursors of oxide catalysts for oxidative dehydrogenation (OD) were developed. Tungsten-containing samples of oxide catalysts of various compositions were synthesized and their catalytic properties in OD of ethane were studied. The introduction of tungsten into the catalysts increased the yield of ethylene in all cases. In the series of tungsten-containing catalysts, the ethylene yield increased in the following order of the catalysis: Mg-Al-V-Mo-W-O < Mg-Al-Ni-V-Mo-W-O < Mg-Al-Fe-V-Mo-W < Mg-Al-Cr-V-Mo-W-O.


Russian Journal of Inorganic Chemistry | 2008

Magnesium iron aluminum hydroxosalts and oxide catalysts for oxidative dehydrogenation of alkanes and alcohols

O. N. Krasnobaeva; I. P. Belomestnykh; G. V. Isagulyants; T. A. Nosova; T. A. Elizarova; D. F. Kondakov; V. P. Danilov

Methods are developed for the synthesis of precursors for oxide catalysts containing iron hydroxocarbonate and magnesium aluminum hydroxocarbonate with hydrotalcite-type layered structure and decavanadate and paramolybdate ions in anionic interlayers. These precursors are used to synthesize oxide catalysts for oxidative dehydrogenation of alcohols and alkanes with high selectivity and good yields of the desired product in conversion of ethane to ethylene and alcohols to carbonyl compounds.


Russian Journal of Inorganic Chemistry | 2006

New complex ytterbium molybdophosphates M 2 I Yb(PO4)(MoO4) (MI = K, Na): Synthesis and structure solution

L. N. Komissarova; M.A. Ryumin; A. P. Bobylev; M. G. Zhizhin; V. P. Danilov

Complex rare-earth molybdophosphates of sodium and potassium (Na2Yb(PO4)(MoO4) (I) and K2Yb(PO4)(MoO4) (II) are synthesized by solid-phase reactions at 600°C (for I) and 750°C (for II). The molybdophosphates are characterized using powder X-ray diffraction, laser second harmonic generation (SHG), IR spectroscopy, and differential thermal analysis. Their structures are refined using the Rietveld technique. The compounds are isostructural and crystallize in an orthorhombic system (space group Ibca, Z = 8). The unit cell parameters are a = 18.0086(1) Å, b = 12.0266(1) Å, c = 6.7742(1) Å for compound I and a = 19.6646(1) Å, b = 12.0570(1) Å, c = 6.8029(1) Å for compound II. The structures are built of YbO8 chains extended along axis c and linked into layers through PO4 tetrahedra. The Na+ cations (CN = 6) and the K+ cations (CN = 8) reside in the interlayer spaces.


Russian Journal of Inorganic Chemistry | 2013

Indium-containing catalysts for oxidative dehydrogenation of organic compounds

O. N. Krasnobaeva; I. P. Belomestnykh; V. M. Kogan; T. A. Nosova; V. M. Skorikov; T. A. Elizarova; V. P. Danilov

For the first time, a method was developed for introducing indium into Mg-Al hydrotalcites—precursors of oxide catalysts for oxidative dehydrogenation of alkanes. Samples of oxide catalysts were synthesized that contained indium oxide and also oxides of magnesium, aluminum, chromium, vanadium, molybdenum, and niobium in various combinations. The catalytic properties of the produced catalysts were studied in the oxidative dehydrogenation of ethane, propane, and isobutane. It was established that the introduction of indium into catalysts increases the selectivity and the yields of desired products. New hydroxo salts with a layered structure of the hydrotalcite type were synthesized: [Al1 − nInnMgm(OH)3 + 2m − 1][(NO3) · nH2O] and quaternary magnesium indium chromium aluminum hydroxonitrate of the composition [Al0.5In0.5Cr0.5Mg2.5(OH)8.5][(NO3) · nH2O]; these salts were found to be isostructural. The obtained compounds were studied as catalyst precursors.


Russian Journal of Inorganic Chemistry | 2012

Copper-containing catalysts for the oxidative dehydrogenation of organic compounds

O. N. Krasnobaeva; I. P. Belomestnykh; T. A. Nosova; T. A. Elizarova; G. V. Isagulyants; V. P. Danilov

A method of doping magnesium aluminum hydrotalcites, which are precursors for oxidative dehydrogenation oxide catalysts of various compositions, with copper(II) was developed, and copper(II)-containing oxide catalyst samples were synthesized. The catalytic properties of these catalysts were studied in the oxidative dehydrogenation of ethane, propane, and hexane. The conversion of ethane into ethylene on the copper-containing catalysts was established to proceed with high selectivities (90–97%) and at low temperatures (400–450°C).

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E. A. Frolova

Russian Academy of Sciences

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D. F. Kondakov

Russian Academy of Sciences

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O. N. Krasnobaeva

Russian Academy of Sciences

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T. A. Nosova

Russian Academy of Sciences

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T. A. Elizarova

Russian Academy of Sciences

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V. T. Orlova

Russian Academy of Sciences

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I. P. Belomestnykh

Russian Academy of Sciences

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G. V. Isagulyants

Russian Academy of Sciences

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