Carbon Monoxide Hydrogenation over Gd(Fe/Mn)O3 Perovskite-Type Catalysts
| Autor: | T. F. Sheshko, L. V. Yafarova, T. A. Kryuchkova, I. V. Chislova, E. B. Markova, A. A. Sharaeva, Irina A. Zvereva |
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| Rok vydání: | 2019 |
| Předmět: |
Olefin fiber
Materials science Hydrogen 010405 organic chemistry Scanning electron microscope General Chemical Engineering Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element General Chemistry Manganese 010402 general chemistry 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Fuel Technology chemistry Geochemistry and Petrology Selectivity Perovskite (structure) Carbon monoxide |
| Zdroj: | Petroleum Chemistry. 59:1307-1313 |
| ISSN: | 1555-6239 0965-5441 |
| DOI: | 10.1134/s0965544119120107 |
| Popis: | Catalytic properties of GdFeO3 and GdMnO3 perovskite-type oxides in CO hydrogenation processes is conducted. Complex oxides Gd(Fe/Mn)O3 are synthesized by the sol–gel technology and characterized by X-ray diffraction, temperature-programmed reduction, and scanning electron microscopy. It is found that the iron-containing catalyst has fairly high catalytic characteristics; therefore, it provides lower temperatures of carbon monoxide hydrogenation. The presence of manganese in the catalyst leads to an increase in light olefin selectivity compared with the sample containing iron at the B-site. It is assumed that gadolinium cations are responsible for dissociative chemisorption, while iron and manganese cations are responsible for the formation of atomic hydrogen. The two catalysts exhibit resistance to carbon deposition. |
| Databáze: | OpenAIRE |
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