PT-SN/AL2O3 BIMETALLIC CATALYSTS PREPARED BY SOLVATED METAL ATOM DISPERSION (SMAD) - SYNTHESIS AND CATALYTIC PERFORMANCE

被引：17
|
作者：
LI, YX [1 ]
KLABUNDE, KJ [1 ]
机构：
[1] KANSAS STATE UNIV AGR & APPL SCI,DEPT CHEM,MANHATTAN,KS 66506
来源：
LANGMUIR | 1987年 / 3卷 / 04期
关键词：
ALUMINA - Metallizing - HYDROCARBONS - Chemical Reactions - PLATINUM TIN ALLOYS - Surface Properties;
D O I：
10.1021/la00076a021
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Conventional Pt/Al//2O//3 catalysts have been doped with Sn by using low-temperature organic solutions of Sn atoms/clusters in THF or toluene (solvated metal atom dispersion, SMAD). The resultant SMAD Pt-Sn/Al//2O//3 catalysts exhibit unusual behavior in hydrocarbon conversions. Dehydrocyclization activities are high while hydrogenolysis (multiple C-C bond cleavages) activities are low compared with those of Pt/Al//2O//3. Resistance to sulfur poisoning is good. Alloy formation (Pt-Sn) appears to be important.
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页码：558 / 562
页数：5
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