Reference : Methods for the preparation of bimetallic xerogel catalysts designed for chlorinated was...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Chemical engineering
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/7056
Methods for the preparation of bimetallic xerogel catalysts designed for chlorinated wastes processing
English
Lambert, Stéphanie mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >]
Ferauche, Fabrice [Université de Liège - ULG > Chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Heinrichs, Benoît mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >]
Tcherkassova, Natalia mailto [Université de Liège - ULG > Chimie appliquée > Génie chimique - Chimie physique appliquée > >]
Pirard, Jean-Paul mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >]
Alié, Christelle mailto [Université de Liège - ULg > > Chimie générale et chimie physique >]
1-Aug-2006
Journal of Non-Crystalline Solids
Elsevier Science Bv
352
26-27
2751-2762
Yes (verified by ORBi)
International
0022-3093
Amsterdam
[en] catalysis ; nuclear and chemical wastes ; silica ; sol-gels (xerogels)
[en] The aim of this work is to simplify and generalize the synthesis procedure of bimetallic supported catalysts by sol-gel process. For Pd-Ag/SiO2, co-gelled xerogels catalysts a number of synthesis procedures were compared: use of one or two specific alkoxides able to form a chelate with palladium and/or silver cations, reagent mixing in one or two steps, use of industrial grade chemicals instead of laboratory grade chemicals. The catalysts obtained are quite similar: same metal dispersion, same tailored morphology, same localization and accessibility of Pd-Ag alloy nanoparticles inside microporous silica, same activity and selectivity for hydrodechlorination of 1,2-dichloroethane into ethylene. For catalyst production at large scale the synthesis can be achieved in one step with 3-(2-aminoethyl)aminopropyltrimethoxysilane of industrial grade as chelating alkoxide, tetraethylorthosilicate (TEOS) of industrial grade and ethanol denatured with diethyl phthalate. (c) 2006 Elsevier B.V. All rights reserved.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
http://hdl.handle.net/2268/7056
also: http://hdl.handle.net/2268/20048

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