cogelled xerogel catalysts; Pd-Ag alloys; Pd-Cu alloys; hydrodechlorination; turnover frequency
Abstract :
[en] While 1,2-dichloroethane hydrodechlorination over pure palladium mainly produces ethane, increasing silver or copper content in bimetallic catalysts results in an increase in ethylene selectivity. The specific consumption rate of 1,2-dichloroethane decreases when silver or copper loading increases. The turnover frequency, that is, the number of catalytic cycle per active site (palladium atom and its surrounding silver or copper atoms) and per second, seems to be independent of surface composition of alloy particles and 1,2-dichloroethane hydrodechlorination is insensitive to the atom's nature (silver or copper). (c) 2004 Elsevier B.V. All rights reserved.
Disciplines :
Materials science & engineering Chemistry Physics Chemical engineering
Author, co-author :
Lambert, Stéphanie ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Génie catalytique
Ferauche, Fabrice; Université de Liège - ULiège > Département de Chimie appliquée > Génie chimique - Chimie physique appliquée
Brasseur, Alain; Université de Liège - ULiège > Département de Chimie appliquée > Génie chimique - Chimie physique appliquée
Pirard, Jean-Paul ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée
Heinrichs, Benoît ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée
Language :
English
Title :
Pd-Ag/SiO2 and Pd-Cu/SiO2 cogelled xerogel catalysts for selective hydrodechlorination of 1,2-dichloroethane into ethylene
Publication date :
28 February 2005
Journal title :
Catalysis Today
ISSN :
0920-5861
eISSN :
1873-4308
Publisher :
Elsevier Science Bv, Amsterdam, Netherlands
Volume :
100
Issue :
3-4
Pages :
283-289
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
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