The transfer hydrogenolysis of glycerol promoted by palladium based catalysts is reported. The reactions were carried out under mild conditions (453 K and 5 bar of N2) in absence of added hydrogen by using the reaction solvent, 2-propanol, as hydrogen source. The catalytic results were interpreted in terms of metal (Pd)-metal (Co or Fe) interaction that modifies the electronic properties of palladium and affords bimetallic PdM sites (M = Co or Fe), thus enhancing the catalytic properties of the systems in the conversion of glycerol as well as in the selectivity to 1,2-propanediol and 1-propanol. The transfer hydrogenolysis mechanism is here elucidated and involves the glycerol dehydration to 1-hydroxyacetone and the subsequent hydrogenation of 1-hydroxyacetone to propylene glycol.
|Titolo:||Exploring the catalytic properties of supported palladium catalysts in the transfer hydrogenolysis of glycerol|
MAURIELLO, Francesco (Corresponding)
|Data di pubblicazione:||2015|
|Appare nelle tipologie:||1.1 Articolo in rivista|