Influence of the Preparation Variables on the Separative and Catalytic Properties of Ruthenium-Silica Membranes
作者： V. Pârvulescu , V.I. Pârvulescu , C. Niculae , G. Popescu , A. Julbe
DOI: 10.1016/S0167-2991(98)80183-3
关键词:
摘要: RuO 2 /SiO and Ru/SiO catalytic membranes supported on alumina were prepared using the sol-gel method from tetraethoxysilane (TEOS) derived sols in presence of surfactants (tetraalkylammonium salts) RuCl 3 .3H O ethylene glycol or ethanol. Sols with adapted rheological properties deposited supports by spin coating. Several synthesis parameters such as pH type solvent for TEOS hydrolysis, refluxing time, surfactant chain length, Ru concentration, found to exert a concerted action both textural structural characteristics membrane material. These effects investigated XRD, FTIR, UV–vis diffuse reflectance spectroscopy, N adsorption-desorption permeability measurements. The influence preparation performance have been evaluated oxidation isopropylic alcohol hydrogenolysis-homologation 1-butene.
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