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.

引用

页码：558 / 562

页数：5