Support-enhanced selective aerobic alcohol oxidation over Pd/mesoporous silicas

Parlett, Christopher Michael A., Bruce, Duncan W., Hondow, Nicole S., Lee, Adam Fraser and Wilson, Karen 2011. Support-enhanced selective aerobic alcohol oxidation over Pd/mesoporous silicas. ACS Catalysis 1 (6) , pp. 636-640. 10.1021/cs200145n

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Abstract

The influence of silica mesostructure upon the Pd-catalyzed selective oxidation of allylic alcohols has been investigated for amorphous and surfactant-templated SBA-15, SBA-16 and KIT-6 silicas. Significant rate enhancements can be achieved via mesopore introduction, most notably through the use of interconnected porous silica frameworks, reflecting both improved mass transport and increased palladium dispersion; catalytic activity decreases in the order Pd/KIT-6  Pd/SBA-16 > Pd/SBA-15 > Pd/SiO2. Evidence is presented that highly dispersed palladium oxide nanoparticles, not zero valent palladium, are the catalytically active species.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Cardiff Catalysis Institute (CCI) Chemistry
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	Palladium; Alcohol; Selective oxidation; Mesoporous; Silica; active site
Publisher:	ACS
ISSN:	2155-5435
Last Modified:	19 Mar 2016 22:15
URI:	https://orca.cardiff.ac.uk/id/eprint/9643

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