Promoter Effects on Catalyst Selectivity and Stability for Propylene Partial Oxidation to Acrolein
| Autor: | Massimiliano Delferro, Carlos A. Carrero, Magali Ferrandon, Patricia Anne A. Ignacio-de Leon, Louisa Savereide, Karena W. Chapman, Jeffrey Camacho-Bunquin, Jorge Moncada, Scott L. Nauert, Justin M. Notestein, SonBinh T. Nguyen, Rachel C. Klet |
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| Rok vydání: | 2019 |
| Předmět: |
010405 organic chemistry
Chemistry Acrolein General Chemistry 010402 general chemistry Photochemistry 01 natural sciences Catalysis 0104 chemical sciences Metal chemistry.chemical_compound Transition metal Covalent bond visual_art visual_art.visual_art_medium Partial oxidation Selectivity Organometallic chemistry |
| Zdroj: | Catalysis Letters. 150:826-836 |
| ISSN: | 1572-879X 1011-372X |
| DOI: | 10.1007/s10562-019-02969-3 |
| Popis: | Highly dispersed silica-supported CuOx/SiO2 catalysts were synthesized via solution-phase deposition and studied for their activity, selectivity, and stability in catalyzing the selective oxidation of propylene to acrolein. Strategies for ensuring high metal dispersion included controlling the surface density of silanols (via covalent silanol-capping) or by pre-installing different “promoter” transition metals at submonolayer coverages. A comparison of the effect of first row transition metal promoters showed that V and Cr significantly boost catalyst performance and stabilize CuOx sites against aggregation. |
| Databáze: | OpenAIRE |
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