Ag/SiO2, Cu/SiO2 and Pd/SiO2 cogelled xerogel catalysts for benzene combustion: Relationships between operating synthesis variables and catalytic activity |
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| Affiliation: | 1. Laboratoire de Génie Chimique, B6a, Université de Liège, B-4000 Liège, Belgium;2. Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium;1. Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973, United States;2. Chemistry Department, State University of New York (SUNY), Stony Brook, NY 11794, United States;3. Department of Materials Science and Engineering, Chungnam National University, Daejeon 305-764, Republic of Korea;4. Department of Chemistry & Biochemistry, James Madison University, Harrisonburg, VA 22807, United States;5. Department of Science, BMCC-CUNY, New York, NY 10007, United States;6. Department of Chemical Engineering, Columbia University, NY 10027, United States;1. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China;2. University of Chinese Academy of Sciences, Beijing 100049, PR China;3. Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China;4. College of Forestry, Henan Agricultural University, Zhengzhou 450002, PR China;1. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China;2. University of Chinese Academy of Sciences, Beijing, 100049, PR China;3. Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, PR China |
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| Abstract: | The aim of this work is to explore the applicability of the sol–gel method for the preparation of Ag/SiO2, Cu/SiO2 and Pd/SiO2 catalysts and to see whether such a method can yield silver, copper and palladium species stabilized by the carrier in the case of benzene oxidation. So Ag/SiO2, Cu/SiO2 and Pd/SiO2 xerogel catalysts were synthesized by cogelation of tetraethoxysilane (TEOS) and chelates of Ag, Cu and Pd with 3-(2-aminoethylamino)-propyltrimethoxysilane (EDAS). The resulting catalysts are composed of completely accessible metallic crystallites with a diameter of about 3 nm located inside silica particles. |
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