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Your search keyword '"Pakharukova, V.P."' showing total 2 results
Start Over Author "Pakharukova, V.P." Journal nuclear instruments & methods in physics research section a
2 results on '"Pakharukova, V.P."'

1. XRD study of the local structure and phase composition of catalysts with use of synchrotron radiation: Method of the radial distribution of electron density

Author

Moroz, E.M., Pakharukova, V.P., and Shmakov, A.N.

Subjects
*X-ray diffraction, *SYNCHROTRON radiation, *METAL catalysts, *ELECTRON distribution, *CERIUM oxides, *MOLECULAR structure
Abstract

Abstract: Some examples illustrating the use of the method based on the radial distribution function (RDF) of electronic density for investigation metal and oxide catalysts are reported. Using monoatomic unsupported metal catalysts with crystallite sizes D=40–450Å, it was shown that the areas of coordination peaks in RDF directly define the absolute values of coordination numbers Z and depend on crystallite sizes. The investigation of the phase composition and local structure of supported metal catalysts revealed that the interaction between the active component and the support was responsible for the thermal stability of small supported metal particles. The local structure of ceria with different crystallite sizes was investigated. [Copyright &y& Elsevier]

Published
2009
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2. The state of the components in copper–cerium catalysts supported on different oxides

Author

Kosmambetova, G.R., Kriventsov, V.V., Moroz, E.M., Pakharukova, V.P., Strizhak, P.E., and Zyuzin, D.A.

Subjects
*METAL catalysts, *CATALYST supports, *METALLIC oxides, *OXIDATION, *X-ray diffraction, *SYNCHROTRON radiation, *EXTENDED X-ray absorption fine structure
Abstract

Abstract: The phase composition and the state of the active components in the catalysts used for preferential oxidation (PROX) of CO in hydrogen-containing mixtures are considered. Cu–Ce catalysts supported on different oxides (ZrO2, TiO2, Al2O3, MnO2) before and after PROX reaction are characterized. [Copyright &y& Elsevier]

Published
2009
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