XPS STUDIES OF PT-SN NAPHTHA REFORMING CATALYSTS

被引：29
|
作者：
LI, YX
STENCEL, JM
DAVIS, BH
机构：
来源：
APPLIED CATALYSIS | 1990年 / 64卷 / 1-2期
关键词：
alloy formation; catalyst characterization (XPS); catalyst preparation (acetone solution); platinum-tin/alumina;
D O I：
10.1016/S0166-9834(00)81554-7
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Pt-Sn has been supported on a nonporous (110 m2/g) alumina, a higher surface area (250 m2/g) porous alumina and a silica (700 m2/g). Both Sn (O) and Pt (O) have been observed in the reduced samples. Sn(O), and presumably alloy formation, occurs to a greater extent when platinum and tin are added as a complex dissolved in acetone as compared to either co-impregnation or co-precipitation. The ratio of Pt (O) to Sn (O) varies, at constant platinum loading, with the total amount of tin added in the preparation; this Pt:Sn ratio varies from about 0.4 to about 6 for the catalysts utilized in this study. © 1990.
引用
收藏
页码：71 / 81
页数：11
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