Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 166, Issue -, Pages 121-131Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2014.11.014
Keywords
Catalytic transfer hydrogenolysis (CTH); Glycerol valorization; 1,2-Propanediol; Coprecipitated palladium catalysts; Strong metal support interaction
Funding
- Catalysis Research Center, Hokkaido University
- MIUR [PRIN2010 - 2010KHLKFC_001]
- Grants-in-Aid for Scientific Research [25106010] Funding Source: KAKEN
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The transfer hydrogenolysis of glycerol promoted by supported palladium catalysts is reported. The reactions were carried out under mild conditions (453K and 5 bar of N-2) in absence of added hydrogen by using the reaction solvent, 2-propanol, as hydrogen source. The catalytic results are 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. (C) 2014 Elsevier B.V. All rights reserved.
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