原文由 shxie 发表:
Title: Ruthenium-tin sol-gel catalysts: effect of the preparation and tin precursor influence
Author(s): Hajek J, Kacer P, Murzin DY, Cerveny L
Source: RESEARCH ON CHEMICAL INTERMEDIATES 28 (6): 561-573 2002
Document Type: Review
Language: English

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J. Hájek, P. Kaer, D. Yu. Murzin and L. ervený


Abstract  The influence of the synthesis route and the chemical nature of tin precursors on the catalytic properties of supported sol-gel Ru-Sn/SiO2 catalysts were studied. It was demonstrated that introduction of tin afforded better selectivities than a monometallic sol-gel catalyst in the liquid-phase hydrogenation of cinnamaldehyde; however, the chemical nature of the tin precursor did not influence the catalyst performance. Sol-gel catalyst properties depended significantly upon the preparation method used and on the activation temperature. The selectivity to unsaturated alcohol increased with conversion, which is indicative of the in-situ creation of active sites selective in the carbonyl bond hydrogenation.