LIQUID-PHASE HYDROGENATION OF CINNAMALDEHYDE OVER SUPPORTED RUTHENIUMCATALYSTS - INFLUENCE OF PARTICLE-SIZE, BIMETALLICS AND NATURE OF SUPPORT

Authors
COQ B KUMBHAR PS MOREAU C MOREAU P WARAWDEKAR MG
Citation
B. Coq et al., LIQUID-PHASE HYDROGENATION OF CINNAMALDEHYDE OVER SUPPORTED RUTHENIUMCATALYSTS - INFLUENCE OF PARTICLE-SIZE, BIMETALLICS AND NATURE OF SUPPORT, Journal of molecular catalysis, 85(2), 1993, pp. 215-228
Citations number
28
Categorie Soggetti
Chemistry Physical
Journal title
Journal of molecular catalysis → ACNP
ISSN journal
03045102
Volume
85
Issue
2
Year of publication
1993
Pages
215 - 228
Database
ISI
SICI code
0304-5102(1993)85:2<215:LHOCOS>2.0.ZU;2-W
Abstract
Hydrogenation of cinnamaldehyde was studied over supported Ru based ca talysts. The influence of particle size, bimetallic formulation and na ture of support on activity and selectivity to the desired product, ci nnamyl alcohol, was investigated. Ru particle size had a pronounced ef fect on both TOF and selectivity. Larger Ru particles showed higher se lectivity to cinnamyl alcohol, as well as higher TOF. Addition of Sn, Fe, Ge, Sb, Zn and Ag as a second metal improved both activity and sel ectivity. Ru-Sn/Al2O3 showed sustained improvement in selectivity, eve n at higher conversions, probably due to the presence of Ru-Sn(delta+) sites and/or due to the electron transfer from Sn to Ru. ZrO2 was fou nd to be the most effective support in terms of selectivity. Possible reasons for this behaviour of ZrO2 are delineated.