Effect of Particle Size on Monometallic and Bimetallic (Au,Pd)/C
on the Liquid Phase Oxidation of Glycerol |
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| Authors: | Nikolaos Dimitratos Jose Antonio Lopez-Sanchez David Lennon Francesca Porta Laura Prati Alberto Villa |
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| Affiliation: | (1) Dipartimento di Chimica Inorganica Metallorganica e Analitica e INSTM Unit, Centre of Excellence CIMAINA, Auricat Programme Universita’ di Milano, via Venezian 21, 20133 Milano, Italy;(2) Department of Chemistry, The University of Glasgow, Joseph Black Building, Glasgow, G12 8QQ, Scotland, UK |
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| Abstract: | The influence of metal particle size of monometallic and bimetallic supported catalysts (Au, Pd, Au–Pd)/C was studied using
as a model reaction the liquid phase oxidation of glycerol. By tuning the metal particle size from 2 to 16 nm a progressive
decrease of activity and simultaneously an increase in the selectivity to sodium glycerate was observed. Moreover, the influence
of the temperature was studied and it was found that by increasing the temperature, only with a large particle size the formed
glycerate was retained and not over-oxidized to tartronate. |
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| Keywords: | glyceric acid glycolic acid tartronic acid liquid-phase oxidation of glycerol gold palladium particle size effect |
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