Bimetallic Ru–Pd Supported on Ceo2 for the Catalytic Partial Oxidation of Methane into Syngas
| Autor: | Shiva Fazlikeshteli, Xavier Vendrell, Jordi Llorca |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Química |
| Rok vydání: | 2022 |
| Předmět: |
History
Polymers and Plastics General Chemical Engineering Organic Chemistry Energy Engineering and Power Technology Syngas Ceria catalysts Catalysis Nanoquímica Industrial and Manufacturing Engineering Noble metal catalysts Fuel Technology Enginyeria química [Àrees temàtiques de la UPC] Catàlisi Partial oxidation of methane Business and International Management Nanochemistry Bimetallic catalysts Mechanochemistry |
| Zdroj: | SSRN Electronic Journal. |
| ISSN: | 1556-5068 |
| DOI: | 10.2139/ssrn.4167051 |
| Popis: | A series of monometallic Ru, Pd, and bimetallic Ru–Pd catalysts loaded on CeO2 support have been prepared via mechanochemical and conventional incipient wetness impregnation methods and used in the partial oxidation of methane (POM) to obtain synthesis gas (H2 and CO). The influence of the preparation method, the order of addition of the metals, the Ru:Pd metal ratio, and the milling energy and time for samples prepared by the mechanochemical method, have been evaluated between 300 and 600 °C. The results revealed that bimetallic Ru–Pd/CeO2 catalysts outperform monometallic Ru–CeO2 and Pd–CeO2 for POM, both in terms of catalytic activity and stability. Additionally, the bimetallic Ru–Pd/CeO2 catalysts prepared by ball milling produced syngas at a much lower temperature compared to the conventional catalysts prepared by incipient wetness impregnation. Raman spectroscopy, temperature programmed reduction (H2–TPR), X–ray photoelectron spectroscopy (XPS) and high–resolution transmission electron microscopy (HRTEM) have been used to characterize the catalysts before and after reaction. |
| Databáze: | OpenAIRE |
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