Reference : Hydrodechlorination of 1,2-dichloroethane on Pd-Ag catalysts supported on tailored te...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Physical, chemical, mathematical & earth Sciences : Physics
Engineering, computing & technology : Chemical engineering
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/20057
Hydrodechlorination of 1,2-dichloroethane on Pd-Ag catalysts supported on tailored texture carbon xerogels
English
Job, Nathalie mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Heinrichs, Benoît mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Ferauche, Fabrice [Université de Liège - ULG > Département de Chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Noville, Francis mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Marien, José mailto [Université de Liège - ULg > > Chimie générale et chimie physique >]
Pirard, Jean-Paul mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Chimie physique appliquée > >]
15-May-2005
Catalysis Today
Elsevier Science Bv
102
234-241
Yes (verified by ORBi)
International
0920-5861
Amsterdam
[en] hydrodechlorination ; carbon xerogels ; tailored texture carbon ; 1,2-dichloroethane
[en] Porous carbon xerogels synthesized in a previous study were investigated as catalysts supports. The support chosen was a micro-mesoporous carbon xerogel obtained from the pyrolysis of a resorcinol-formaldehyde resin whose synthesis variables were fixed at suitable values. Palladium and silver were deposited on this tailored texture carbon by co-impregnation using a solution of palladium and silver nitrates in nitric acid and water. Several catalysts were prepared with various Pd and Ag global contents, the latters being measured experimentally. Alloy particles, detected in all bimetallic samples, were studied by a combination of various techniques that enabled us to obtain their size as well as their bulk and surface composition. When present, the fraction of unalloyed silver was also calculated. The characterization data were related to the results of catalytic tests obtained for selective hydrodechlorination of 1,2-dichloroethane into ethylene. Results show that when the Ag content is too high, pure Ag particles are formed and the alloy composition remains constant. As a consequence, the surface composition of the alloy is constant as well and the catalytic tests lead to similar results. (c) 2005 Elsevier B.V. All rights reserved.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
http://hdl.handle.net/2268/20057
also: http://hdl.handle.net/2268/20072

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