Application of silica-supported Fe–Cu nanoparticles in the selective hydrogenation of p-dinitrobenzene to p-phenylenediamine
| Autor: | V. D. Nissenbaum, Elena V. Shuvalova, Leonid M. Kustov, Anna A. Strelkova, O. A. Kirichenko, Gennady I. Kapustin, Anastasiya A. Shesterkina |
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| Rok vydání: | 2017 |
| Předmět: |
Hydrogen
010405 organic chemistry Dinitrobenzene Inorganic chemistry Oxide chemistry.chemical_element 010402 general chemistry 01 natural sciences Copper 0104 chemical sciences Catalysis law.invention chemistry.chemical_compound chemistry law Calcination Physical and Theoretical Chemistry Selectivity Bimetallic strip |
| Zdroj: | Russian Journal of Physical Chemistry A. 91:201-204 |
| ISSN: | 1531-863X 0036-0244 |
| Popis: | Supported bimetallic Fe–Cu/SiO2 materials are synthesized, and their catalytic activity in hydrogenation of dinitrobenzene to phenylenediamine at 145–180°С and 1.3 MPa hydrogen pressure is studied for the first time. The best results (89% selectivity toward p-phenylenediamine at complete conversion of p-dinitrobenzene) are obtained for the sample synthesized via co-deposition with subsequent calcination at 300°С. The sample contains 7% iron and 3% copper. The formation of separate phases of metal oxides (for the catalysts prepared by impregnation) and mixed bimetallic oxide phases (in case of co-deposition procedure) in calcined samples is revealed via thermoprogrammed reduction with hydrogen. |
| Databáze: | OpenAIRE |
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