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Ag/SiO2, Cu/SiO2and Pd/SiO2cogelled xerogel catalysts for benzene combustion: Relationships between operating synthesis variables and catalytic activity

Authors
Journal
Catalysis Communications
1566-7367
Publisher
Elsevier
Publication Date
Volume
8
Issue
8
Identifiers
DOI: 10.1016/j.catcom.2006.11.018
Keywords
  • Sol–Gel Process
  • Metallic Nanoparticles
  • Benzene Combusion

Abstract

Abstract The aim of this work is to explore the applicability of the sol–gel method for the preparation of Ag/SiO 2, Cu/SiO 2 and Pd/SiO 2 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/SiO 2, Cu/SiO 2 and Pd/SiO 2 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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