Dilute Pd-in-Au alloy RCT-SiO2 catalysts for enhanced oxidative methanol coupling

Dilute Pd-in-Au alloy RCT-SiO2 catalysts for enhanced oxidative methanol coupling

Dilute alloy catalysts have the potential to enhance selectivity and activity for large-scale reactions. Highly dilute Pd-in-Au nanoparticle alloys partially embedded in porous silica (“raspberry colloid templated” (RCT)-SiO2) prove to be robust and selective catalysts for oxidative coupling of meth...

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Veröffentlicht in:Journal of catalysis 2021-06, Vol.404 (C)
Hauptverfasser: Filie, Amanda, Shirman, Tanya, Foucher, Alexandre C., Stach, Eric A., Aizenberg, Michael, Aizenberg, Joanna, Friend, Cynthia M., Madix, Robert J.
Format: Artikel
Sprache:eng
Schlagworte:
Bimetallic alloy
Chemistry
Engineering
Esterification
Gold
Heterogeneous catalysts
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Palladium
Selective alcohol oxidation
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Zusammenfassung:Dilute alloy catalysts have the potential to enhance selectivity and activity for large-scale reactions. Highly dilute Pd-in-Au nanoparticle alloys partially embedded in porous silica (“raspberry colloid templated” (RCT)-SiO2) prove to be robust and selective catalysts for oxidative coupling of methanol. Palladium concentrations in the bimetallic nanoparticles as low as ~3.4 at.% catalyze the production of methyl formate with a selectivity of ~95% at conversions of ~55%, whereas conversions are low (
ISSN:0021-9517
1090-2694