EuroPt-1 Catalyst: Radial Distribution of Electron Density X-Ray Diffraction and EXAFS Studies Full article
Journal |
Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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Output data | Year: 2009, Volume: 50, Number: 6, Pages: 1082-1087 Pages count : 6 DOI: 10.1007/s10947-009-0159-z | ||
Tags | Catalyst, EXAFS, Oxide, Platinum, Structure | ||
Authors |
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Affiliations |
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Funding (5)
1 | Russian Foundation for Basic Research | 08-03-92502 |
2 | Russian Foundation for Basic Research | 09-03-01012 |
3 | Russian Foundation for Basic Research | 08-03-01150 |
4 | The Ministry of Education and Science of the Russian Federation | 02.518.11.7128 |
5 | Президиум РАН | 27.12.13 |
Abstract:
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 further treatment, and contained metal platinum Pt0 and platinum oxide PtO in a ∼1:2 ratio. An analysis of the EXAFS data was based on three possible structural models of platinum particles. Model 1 suggested that there was one Pt-Pt short contact, which was the same in the bulk of the particles and on the surface. Model 2 considered two different Pt-Pt distances for the particle volume and surface. For model 3, we additionally assumed that the corresponding Debye-Waller factors differed. For the oxidized sample, model 2 was most reliable, and the Pt-Pt distance between the surface atoms was shortened by ∼0.14 Å. For the reduced samples, the structural data obtained are consistent with model 3.
Cite:
Moroz E.M.
, Kriventsov V.V.
, Kochubey D.I.
EuroPt-1 Catalyst: Radial Distribution of Electron Density X-Ray Diffraction and EXAFS Studies
Journal of Structural Chemistry. 2009. V.50. N6. P.1082-1087. DOI: 10.1007/s10947-009-0159-z WOS Scopus РИНЦ
EuroPt-1 Catalyst: Radial Distribution of Electron Density X-Ray Diffraction and EXAFS Studies
Journal of Structural Chemistry. 2009. V.50. N6. P.1082-1087. DOI: 10.1007/s10947-009-0159-z WOS Scopus РИНЦ
Original:
Мороз Э.М.
, Кривенцов В.В.
, Кочубей Д.И.
Исследование катализатора EuroPt-1 рентгенографическим методом радиального распределения электронной плотности и EXAFS спектроскопии
Журнал структурной химии. 2009. Т.50. №6. С.1132-1138. RSCI РИНЦ
Исследование катализатора EuroPt-1 рентгенографическим методом радиального распределения электронной плотности и EXAFS спектроскопии
Журнал структурной химии. 2009. Т.50. №6. С.1132-1138. RSCI РИНЦ
Dates:
Submitted: | Apr 3, 2008 |
Published print: | Dec 1, 2009 |
Published online: | Feb 4, 2010 |
Identifiers:
Web of science | WOS:000274300500010 |
Scopus | 2-s2.0-77949612622 |
Elibrary | 15315296 |
Chemical Abstracts | 2010:148329 |
Chemical Abstracts (print) | 152:391058 |
OpenAlex | W2014332171 |