Study of the Interaction between Components at Different Stages of Preparing Ru–Rb/Sibunit Catalysts for the Decomposition of Ammonia
| Autor: | V. A. Borisov, Yu. V. Surovikin, E. Yu. Gerasimov, N. S. Smirnova, V. V. Kriventsov, Ya. V. Zubavichus, Pavel G. Tsyrulnikov, D. A. Shlyapin, Mikhail V. Trenikhin, E. V. Khramov, V. L. Temerev, K. N. Iost |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Inorganic chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Decomposition 0104 chemical sciences Ruthenium Rubidium X-ray absorption fine structure Catalysis Metal chemistry Transmission electron microscopy visual_art visual_art.visual_art_medium Physical and Theoretical Chemistry 0210 nano-technology Carbon |
| Zdroj: | Russian Journal of Physical Chemistry A. 94:2201-2208 |
| ISSN: | 1531-863X 0036-0244 |
| DOI: | 10.1134/s0036024420110114 |
| Popis: | The interaction between the components of a Ru–Rb/Sibunit catalyst for the decomposition of ammonia is studied via XAFS spectroscopy, X-ray diffraction with synchrotron radiation, and high-resolution transmission electron microscopy. The porous structure of the samples is examined at the stages of preparation. A set of measures reveals the presence of ruthenium in the catalyst (mainly in the metallic state) and the absence of joint phases of ruthenium and rubidium. It is found that rubidium is in an oxidized state in the catalyst in the form of compounds in direct contact with particles of active component and comparable in size to the latter, and as small clusters found mainly in the structure of carbon support. |
| Databáze: | OpenAIRE |
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