STRUCTURE-FUNCTION-RELATIONSHIPS IN PT-CR-H-ZSM-5 ALLOY CATALYSTS

被引：14

作者：

JOYNER, RW ^{[1
]}

MINACHEV, KM ^{[1
]}

PUDNEY, PDA ^{[1
]}

SHPIRO, ES ^{[1
]}

TULEOUVA, G ^{[1
]}

机构：

[1] ND ZELINSKII ORGAN CHEM INST,MOSCOW 117334,USSR

来源：

CATALYSIS LETTERS | 1990年 / 5卷 / 03期

关键词：

bimetallic; EXAFS; Hydrogenolysis; XPS;

D O I：

10.1007/BF00764670

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：

The activities of 0.5% Pt/H-ZSM-5 and 0.5% Pt/0.75% Cr/H-ZSM-5 catalysts for alkane hydrogenolysis have been compared. The presence of chromium suppresses propane hydrogenolysis by an order of magnitude, but has a much less pronounced effect on ethane hydrogenolysis. Catalyst characterisation by EXAFS and XPS indicates the formation of small alloy particles, typically containing 10 platinum and 3 chromium atoms. The change in catalytic activity is related to electronic structure modification rather than to an ensemble effect. © 1990 J.C. Baltzer A.G. Scientific Publishing Company.

引用

页码：257 / 264

页数：8

共 20 条

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