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    National Tsing Hua University Institutional Repository > 理學院 > 化學系 > 期刊論文 >  119Sn NMR studies on alloying silica supported tin with nickel and palladium


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/56919


    Title: 119Sn NMR studies on alloying silica supported tin with nickel and palladium
    Authors: Chang,Tsong-Huei;Cheng,Cheu-Pyeng;Yeh,Chuin-Tih
    教師: 陳秋炳
    Date: 1989
    Publisher: Elsevier
    Relation: MATERIALS CHEMISTRY AND PHYSICS, Elsevier, Volume 22, Issue 5, AUG 1 1989, Pages 503-510
    Keywords: Catalysts
    Powder Metal Products
    Nuclear Magnetic Resonance
    Nickel and Alloys
    Palladium and Alloys
    Silica
    Abstract: Catalysts of Sn/SiO2, Sn-Ni/SiO2, and Sn-Pd/SiO2 were prepared with the incipient wetness method. The Knight shift in the 119Sn NMR absorption peaks from these catalysts as well as a sample of powdered tin metal were monitored by the solid state NMR spectroscopy. The peaks from the tin powders and the tin on the Sn/SiO2 catalyst were anisotropic with the Knight shifts at 0.755% and 0.813%. The Knight shift of tin was changed on alloying the supported tin with nickel or palladium. These changes in the Knight shift suggested that the electronic properties of the tin atoms in the supported alloys were affected by the presence of nickel and palladium.
    URI: http://www.elsevier.com/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/56919
    Appears in Collections:[化學系] 期刊論文

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