119Sn mössbauer study and catalytic properties of magnesia-supported platinum-tin catalysts prepared by surface organometallic chemistry

作者: L. Stievano , F.E. Wagner , S. Calogero , S. Recchia , C. Dossi

DOI: 10.1016/S0167-2991(00)80632-1

关键词: Catalytic testPlatinumBimetallic stripMagnesiumTinCatalysisChemistryMössbauer spectroscopyOrganometallic chemistryInorganic chemistry

摘要: Pt-Sn/MgO catalysts prepared by Surface Organometallic Chemistry were investigated 119 Sn Mossbauer spectroscopy. The results indicate that, on the reduced catalyst, most of tin forms bimetallic particles with a Sn-rich surface, whereas remainder is present as Sn(II) and Sn(IV) compounds. Changes structure after catalytic test implications properties in selective hydrogenation unsaturated aldehydes to alcohols are discussed.

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