Journal
PETROLEUM CHEMISTRY
Volume 63, Issue 4, Pages 463-467Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0965544123030167
Keywords
catalyst heterogenization; propane oxidation; palladium; gamma-alumina; alizarin
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The paper introduces a method for synthesizing a heterogeneous catalyst with single Pd sites on γ-Al2O3 surface. The method involves the heterogenization of a Pd complex with a hydroxyquinone, followed by hydrogenolysis, reduction, and removal of the ligand. The catalyst exhibited high activity (242 mol of product per g-at Pd per hour) in propane oxidation.
The paper proposes a method for synthesizing a heterogeneous catalyst that contains single Pd sites on ?-Al2O3 surface. This method involves preliminary heterogenization of a Pd complex with a hydroxyquinone (e.g., alizarin) on the ?-Al2O3 surface, followed by hydrogenolysis of the Pd-alizarin bond, reduction of Pd(II) into Pd(0), and removal of alizarin. The catalyst was examined by diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and tested in propane oxidation into key petrochemicals. During the test, the catalyst exhibited high activity (242 mol of the product per g-at Pd per hour).
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