Dehydrogenation of ethanol over carbon-supported Cu–Co catalysts modified by catalytic chemical vapor deposition
| Autor: | Aleksey A. Vedyagin, Ilya V. Mishakov, Ekaterina V. Egorova, Irina V. Krasnikova, Ekaterina A. Ponomareva |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Aqueous solution
Materials science Carbon nanofiber Inorganic chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology digestive system 01 natural sciences digestive system diseases Catalysis 0104 chemical sciences chemistry Chemical engineering medicine Dehydrogenation Physical and Theoretical Chemistry 0210 nano-technology Bimetallic strip Carbon Incipient wetness impregnation Activated carbon medicine.drug |
| Zdroj: | Reaction Kinetics, Mechanisms and Catalysis. 122:399-408 |
| ISSN: | 1878-5204 1878-5190 |
| Popis: | A bimetallic copper–cobalt catalyst supported on activated carbon fibrous (ACF) material was prepared by the incipient wetness impregnation of the support with an aqueous solution of corresponding nitrates. Reference monometallic Cu/ACF and Co/ACF samples were synthesized analogously. In order to enhance the metal-support interaction and stabilize the dispersion of active components, the Cu–Co/ACF catalyst was subjected to catalytic chemical vapor deposition of ethylene at 600 °C with the formation of carbon nanofibers (CNF). As a result, the catalytic system consisting of Cu–Co particles anchored on carbon–carbon composite was obtained. All samples were characterized by a set of physicochemical methods. The catalytic performance of pristine and CNF-modified samples was studied in the ethanol dehydrogenation reaction. The activity of Cu–Co/CNF/ACF catalyst was shown to be two times higher compared with the unmodified bimetallic sample. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink