[en] Highly dispersed Pt/carbon xerogel catalysts are obtained by applying the “Strong Electrostatic Adsorption” (SEA) of hexachloroplatinic acid to carbon xerogels (PZC = 9.4) and platinum tetraammine chloride to oxidized carbon xerogels (PZC = 2.4). After the reduction step, all these Pt/carbon xerogel catalysts display a very high level of metal dispersion: very small platinum particles (1.1-1.3 nm) are observed by TEM. Pt particle sizes obtained by CO chemisorption are in good agreement with TEM micrographs, which shows that the metal is accessible to reactants. These Pt/carbon xerogel catalysts are very active for the hydrogenation of benzene into cyclohexane.
Disciplines :
Chemistry Chemical engineering
Author, co-author :
Lambert, Stéphanie ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée
Job, Nathalie ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée
D'Souza, Lawrence; University of Illinois at Chicago > Chemical Engineering Department
Pereira Ribeiro, Manuel Fernando; University of Porto, Portugal > Departamento de Engenharia Quimica > Laboratorio de Catalise e Materiais (LCM), Laboratorio Associado LSRE/LCM
Pirard, René ; 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
Figueiredo, José Luis; University of Porto > Departamento de Engenharia Quimica > Laboratorio de Catalise e Materiais (LCM), Laboratorio Associado LSRE/LCM
Pirard, Jean-Paul ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée
Regalbuto, Jonh R.; University of Illinois at Chicago > Chemical Engineering Department
Language :
English
Title :
Synthesis of very highly dispersed platinum catalysts supported on carbon xerogels by the strong electrostatic adsorption method
Publication date :
January 2009
Journal title :
Journal of Catalysis
ISSN :
0021-9517
eISSN :
1090-2694
Publisher :
Academic Press, San Diego, United States - California
Volume :
261
Pages :
23-33
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique Fonds de Bay FRFC - Fonds de la Recherche Fondamentale Collective DGTRE - Région wallonne. Direction générale des Technologies, de la Recherche et de l'Énergie Pole d'Attraction Interuniversitaire (IAP-P6/17) Commission for Educational Exchange between The United States of America, Belgium and Luxembourg
Commentary :
Authors thank Elsevier to publish in Open Access this article in the postprint author version.
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