PASCA analysis of Pt-mordenite-Al2O3 catalysts

被引：3

作者：

Bradley, SA ^{[1
]}

Luo, X ^{[1
]}

He, J ^{[1
]}

Chao, TH ^{[1
]}

Gillespie, RD ^{[1
]}

机构：

[1] FUSHUN RES INST PETR & PETROCHEM, FUSHUN, LIAONING, PEOPLES R CHINA

来源：

CATALYSIS LETTERS | 1997年 / 47卷 / 3-4期

关键词：

positron annihilation spectroscopy for chemical analysis (PASCA); mordenite; extrudate; alumina;

D O I：

10.1023/A:1019005004883

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：

Positron annihilation spectroscopy for chemical analysis (PASCA) has been applied to differentiate a multicomponent system from the individual constituents. The model catalysts used for this study were a Pt ion exchanged with mordenite and then extruded with Al2O3 and Pt impregnated onto a formed mordenite-Al2O9 extrudate. Differences were observed between the extrudates and mixed blends of the individual components. This result suggests that the extrusion may modify the location or interaction of the Pt and that PASCA has potential for the characterization of multicomponent catalysts.

引用

页码：205 / 211

页数：7

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