48 Result(s)

Article

Calculation of the structure of new inorganic fullerenes—Mo₁₃Cl₂₄(C₂H _x )₂ clusters

V. G. Yarzhemsky, A. S. Parshakov, D. I. Kochubei, A. D. Izotov… in Doklady Chemistry (2015)

Article

(CuO-CeO₂)/glass cloth catalysts for selective CO oxidation in the presence of H₂: The effect of the nature of the fuel component used in their surface self-propagating high-temperature synthesis on their properties

The potential of surface self-propagating high-temperature synthesis (SSHS) for obtaining (CuO-CeO₂)/glass cloth catalysts is demonstrated. The dependence of the structural and catalytic properties of the catalys...

T. N. Afonasenko, P. G. Tsyrul’nikov, T. I. Gulyaeva… in Kinetics and Catalysis (2013)

Article

Bimetallic Pd-M (M = Co, Ni, Zn, Ag) nanoparticles containing transition metals: Synthesis, characterization, and catalytic performance

The reductive thermolysis of Pd(OOCMe)₄M(OH₂) (M = Ni^II, Co^II, Zn^II) and Pd(OOCMe)₄Ag₂(HOOCMe)₄ molecular complexes results in the generation of bimetallic Pd-based Pd-M (M = Co, Ni, Zn, Ag) nanoparticles. The co...

B. G. Ershov, A. V. Anan’ev, E. V. Abkhalimov, D. I. Kochubei… in Nanotechnologies in Russia (2011)

Article

Structure of Zirconia Nanoparticles used for Pillaring of Clay

SAXS and EXAFS were applied to study genesis of polynuclear zirconium hydroxyspecies in pillaring solutions as dependent upon the zirconium concentration, addition of alkaline-earth chlorides and aging. After ...

V. A. Sadykov, T. G. Kuznetsova, V. P. Doronin… in MRS Online Proceedings Library (2011)

Article

Inhibition by cobalt and zinc of the palladium catalytic activity in uranium(IV) reduction

A. V. Ananyev, B. G. Ershov, E. V. Abkhalimov, L. M. Plyasova… in Doklady Physical Chemistry (2010)

Article

The structure of CdS nanoparticles

CdS nanoparticles in the high-pressure polyethylene (HPPE) matrix have been synthesized and investigated. Shift of the fundamental absorption edge has been shown to be absent with a variation in the nanopartic...

V. I. Kochubei, D. I. Kochubei… in Journal of Surface Investigation. X-ray, S… (2010)

Article

Effective platinum catalysts for low-temperature oxidation of CO

A number of platinum-based catalysts bonded on carbon fiber karbopon were prepared using alcohol solutions of H₂PtCl₆. The catalytic activity of the samples was determined in the low-temperature oxidation of carb...

S. G. Khaminets, L. L. Potapova, B. Z. Radkevich… in Russian Journal of Physical Chemistry A (2010)

Article

EuroPt-1 catalyst: Radial distribution of electron density X-ray diffraction and EXAFS studies

The supported Pt/SiO₂ (EuroPt-1) catalyst has been studied by the radial distribution of electron density (RDED) and EXAFS techniques. The starting sample of the catalyst was stored in air, not subjected to any f...

È. M. Moroz, V. V. Kriventsov, D. I. Kochubei in Journal of Structural Chemistry (2009)

Article

Nanosized clusters of molybdenum chlorides—Active sites in catalytic acetylene oligomerization

E. G. Il’in, A. S. Parshakov, A. K. Buryak, D. I. Kochubei… in Doklady Physical Chemistry (2009)

Article

Ruthenium-carbon nanocomposite

TEM, XRPA, and EXAFS studies showed that pyrolysis of [Ru(dipy)₃](Cl)₂ formed planar, two-dimensional, nanoparticles of ruthenium metal, stabilized in the carbon matrix.

N. B. Shitova, P. G. Tsyrulnikov, D. A. Shlyapin… in Journal of Structural Chemistry (2009)

Article

The use of X-ray absorption spectroscopy for develo** new-generation Co-Mo catalysts of hydrotreating of diesel fuel

O. V. Klimov, A. V. Pashigreva, D. I. Kochubei… in Doklady Physical Chemistry (2009)

Article

EXAFS study of the local structure and cation distribution in V-Mo-Nb oxide

The local structure and cation distribution in Mo-Nb and V-Mo-Nb oxides with M₅O₁₄ type structures, which are active in the oxidative transformations of ethane, were studied by EXAFS spectroscopy. In the amorphou...

T. Yu. Kardash, D. I. Kochubei, L. M. Plyasova… in Journal of Structural Chemistry (2008)

Article

Genesis of the active-component precursor in the synthesis of Pt/Al₂O₃ catalysts: II. Synthesis of platinum hydroxo complexes on the alumina surface as precursors of the active component of Pt/Al₂O₃ catalysts

The thermal hydrolysis of chloroplatinate adsorbed on γ-Al₂O₃ is a possible approach to the synthesis of surface platinum hydroxo complexes as precursors to the active component of supported platinum catalysts. I...

O. B. Bel’skaya, R. Kh. Karymova, D. I. Kochubei, V. K. Duplyakin in Kinetics and Catalysis (2008)

Article

Investigation of polycrystalline copper(II) chloride-1.5-dimethyltetrazole complex compound with X-ray absorption spectroscopy

The polycrystalline copper(II) chloride-1.5-dimethyltetrazole (CuCl₂L, where L is 1.5-dimethyltetrazole) complex compound is investigated with the methods of extended x-ray absorption fine-structure (EXAFS) and x...

L. S. Ivashkevich, A. Yu. Kuz’min… in Journal of Surface Investigation. X-ray, S… (2008)

Article

Activity of Rh/TiO₂ catalysts in NaBH₄ hydrolysis: The effect of the interaction between RhCl₃ and the anatase surface during heat treatment

The reaction properties of Rh/TiO₂ sodium tetrahydroborate hydrolysis catalysts reduced directly in the reaction medium depend on the temperature at which they were calcined. Raising the calcination temperature t...

V. I. Simagina, O. V. Netskina, O. V. Komova, G. V. Odegova… in Kinetics and Catalysis (2008)

Article

Synthesis of nickel-doped alkali halide microcrystals and their spectral and structural analysis

Nickel-doped alkali halide microcrystals were obtained by various methods, including an original synthetic procedure. Their spectral and structural characteristics were investigated. The crystal field strength...

Yu. G. Konyukhova, V. I. Kochubei, D. I. Kochubei… in Journal of Structural Chemistry (2007)

Article

Investigation of the formation process of nanosized particles of Ru(III)

^17O, ³⁵Cl, ¹³³Cs NMR spectroscopy, static magnetic susceptibility measurements, EXAFS, UV spectroscopy, pH measurements, and electron microscopy are applied to investigate alkaline hydrolysis of ...

S. Yu. Troitskii, M. A. Fedotov, D. I. Kochubei… in Journal of Structural Chemistry (2007)

Article

Phase separation in La_1−x Sr _x CoO₃ solid solutions with a perovskite structure

The properties of La_1−x Sr _x CoO₃ (x = 0, 0.15, 0.20, 0.30) solid solutions are investigated using neutron diffraction, positive-muon spin relaxation (precession)...

V. V. Sikolenko, A. P. Sazonov, V. V. Efimov, E. A. Efimova… in Crystallography Reports (2006)

Article

Structure of zirconium butoxide complexes in n-butanol solutions

EXAFS and SAXS were used for structure elucidation of zirconium butoxide complexes in n-butanol at concentrations from 0.3 g to 0.015 g ZrO₂ in 1 ml. The basic structural unit of the complex is a tetramer. It has...

V. V. Kanazhevskii, V. P. Shmachkova, N. S. Kotsarenko… in Journal of Structural Chemistry (2006)