Search Results - "Subbotina, I. R."

IR-study of hydrated surface of oxide photocatalysts by Barsukov, D. V., Subbotina, I. R.

“…IR spectroscopy combined with thermogravimetry was used to investigate the effect of the pretreatment temperature on the degree of coverage of the surface of…”
Get full text

On two alternative mechanisms of ethane activation over ZSM-5 zeolite modified by Zn2+ and Ga1+ cations by Kazansky, V B, Subbotina, I R, Rane, N, van Santen, R A, Hensen, E J M

“…The activation of ethane over zinc- and gallium-modified HZSM-5 dehydrogenation catalysts was studied by diffuse reflectance infrared spectroscopy. Hydrocarbon…”
Get more information

DRIFTS study of the nature and chemical reactivity of gallium ions in Ga/ZSM-5. II. Oxidation of reduced Ga species in ZSM-5 by nitrous oxide or water by KAZANSKY, V. B, SUBBOTINA, I. R, VAN SANTEN, R. A, HENSEN, E. J. M

“…The oxidation of reduced Ga species in ZSM-5 zeolite modified via anchoring of trimethyl gallium or by incipient wetness impregnation with a solution of…”
Get full text

Unusual Infrared Spectrum of Ethane Adsorbed by Gallium Oxide by Kazansky, V. B, Subbotina, I. R, Pronin, A. A, Schlögl, R, Jentoft, F. C

“…The present study reports an unusual diffuse reflection Fourier transform (DRIFT) spectrum of ethane adsorbed by gallium oxide. One of the stretching C−H bands…”
Get full text

Intensities of combination IR bands as an indication of the concerted mechanism of proton transfer from acidic hydroxyl groups in zeolites to the ethylene hydrogen-bonded by protons by Kazansky, V.B., Subbotina, I.R., Jentoft, F.

“…Adsorption of ethylene by sodium forms of mordenite and Y zeolite is reversible and results in no chemical activation of olefin. Therefore, diffuse reflectance…”
Get full text

Integral Absorption Coefficients of C−H Stretching Bands in IR Spectra of Ethane Adsorbed by Cationic Forms of Y Zeolite by Subbotina, I. R, Kazansky, V. B, Kröhnert, J, Jentoft, F. C

“…An attempt to measure absolute intensities of IR C−H stretching bands of ethane specifically adsorbed by Na+, Ca2+, or Mg2+ cations in Y zeolite was carried…”
Get full text

DRIFTS study of the chemical state of modifying gallium ions in reduced Ga/ZSM-5 prepared by impregnation. I. Observation of gallium hydrides and application of CO adsorption as a molecular probe for reduced gallium ions by KAZANSKY, V. B, SUBBOTINA, I. R, VAN SANTEN, R. A, HENSEN, E. J. M

Get full text

Effect of TiO2 modification with fluorine on the physicochemical properties and activity in the photocatalytic oxidation of pollutants in air under UV irradiation by Subbotina, I. R., Barsukov, D. V., Terent’ev, A. O., Krylov, I. B.

“…The influence of the modification of the TiO 2 surface with F − ions on the physicochemical properties of the catalysts and efficiency in the photooxidation of…”
Get full text

Effect of surface hydration on the photocatalytic activity of oxide catalysts in the CO oxidation by Barsukov, D. V., Subbotina, I. R.

“…The effect of the state of hydrated surface of the bulk oxide photocatalysts, TiO 2 , CeO 2 , and ZnO on the rate of UV-induced oxidation of CO with…”
Get full text

Effect of Mn and Fe on the Reactivity of Sulfated Zirconia toward H2 and n-Butane:  A Diffuse Reflectance IR Spectroscopic Investigation by Klose, B. S, Jentoft, F. C, Schlögl, R, Subbotina, I. R, Kazansky, V. B

“…Sulfated zirconia (SZ) and sulfated zirconia promoted with 2 wt % manganese (MnSZ) or iron (FeSZ), all active in n-butane isomerization, were investigated…”
Get full text

Selective Photocatalytic Reduction of Nitric Oxide by Carbon Monoxide over Silica-Supported Molybdenum Oxide Catalysts by Subbotina, I.R., Shelimov, B.N., Kazansky, V.B., Lisachenko, A.A., Che, M., Coluccia, S.

“…The photocatalytic reduction of NO by CO over a MoO3/SiO2 catalyst (2.5 wt% of Mo), which proceeds under UV irradiation at room temperature, is reported for…”
Get full text

IR spectroscopic study of cyclopropane adsorption on zeolite Y: I. Cyclopropane adsorption and transformation on sodium- and hydrogen-exchanged zeolite Y by SUBBOTINA, I. R, KAZANSKII, V. B

Get full text

Effect of Mn and Fe on the Reactivity of Sulfated Zirconia toward H 2 and n -Butane:  A Diffuse Reflectance IR Spectroscopic Investigation by Klose, B. S., Jentoft, F. C., Schlögl, R., Subbotina, I. R., Kazansky, V. B.

Get full text

Cyclopropane Adsorption on Zeolites Studied by IR Spectroscopy: II. Adsorption and Conversion of Cyclopropane on Na- and Ca-Exchanged Zeolite Y by Subbotina, I. R., Kazanskii, V. B.

Get full text

Two alternative mechanisms of aromatization of light hydrocarbons on Ga/ZSM-5 and Zn/ZSM-5 zeolites by Subbotina, I. R., Kazansky, V. B.

“…By means of IR diffuse reflectance spectroscopy, it was shown that aromatization of light paraffins on the GaZSM-5 and ZnZSM-5 catalysts occurs through…”
Get full text

Ethylene adsorption and transformation on zeolite Ga+/ZSM-5 by Kuz´min, I. V., Sokolova, N. A., Subbotina, I. R., Zhidomirov, G. M.

“…The adsorption of ethylene followed by its transformation on zeolite ZSM-5 completely substituted by monovalent gallium cations (Ga + ) was studied by diffuse…”
Get full text

Molecular and dissociative adsorption of H2O on zeolite Zn/ZSM-5 studied by diffuse-reflectance IR spectroscopy and quantum chemical calculations by Subbotin, A. N., Zhidomirov, G. M., Subbotina, I. R., Kazansky, V. B.

“…Interest in water adsorption on cation-substituted zeolites is due to the possibility of the M n + (H 2 O) + [Si-O-Al] −1 → MOH ( n − 1)+ + Si-O(H)-Al (M =…”
Get full text

Filtration of nanosized particle aerosols by electret fibrous filters by Efimov, A. A., Ivanov, V. V., Volkov, I. A., Subbotina, I. R., Pershin, N. A.

“…Results of studying the filtration efficiency of various nanoaerosols in an air-cleaning system in which particles are charged in the integrated corona…”
Get full text

Use of the IR spectra of adsorbed ethane and propane molecules to characterize the strength of active sites in zeolites and to analyze the activation of C-H bonds in these paraffins by Subbotina, I. R., Kazanskii, V. B.

“…The adsorption and activation of ethane and propane on the hydrogen and cationic forms of mordenite, zeolite ZSM-5, and zeolite Y were studied by…”
Get full text

Adsorption properties of oxidized gallium-modified zeolite ZSM-5 from diffuse reflectance IR and quantum-chemical data: 1. Interaction with hydrogen and ethane by Subbotina, I. R., Sokolova, N. A., Kuz’min, I. V., Zhidomirov, G. M., Kazanskii, V. B.

Get full text