PROPENE HYDROGENATION WITH PT-AG INTERMETALLIC PHASES SUPPORTED ON SIO2 GELS

被引：10

作者：

CAMPOSTRINI, R ^{[1
]}

CARTURAN, G ^{[1
]}

BARAKA, RM ^{[1
]}

机构：

[1] ISLAM UNIV GAZA,DEPT CHEM,GAZA,ISRAEL

来源：

JOURNAL OF MOLECULAR CATALYSIS | 1993年 / 78卷 / 02期

关键词：

D O I：

10.1016/0304-5102(93)85036-S

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：

Various intermetallic phases composed of Pt/Ag supported on SiO2-gel were synthesized by reduction of Pt(allyl)2 and Ag[cyclooctadiene]2+ precursors anchored on the support surface. This method afforded highly dispersed metallic particles. X-ray analysis was used to ascertain the occurrence of alloy, for structural identification of Pt/Ag phases and degree of dispersion. The catalytic activity of these systems was studied in gas-phase hydrogenation of propene within the temperature range 10-90-degrees-C. Kinetic parameters such as specific reaction rates, reaction orders and apparent activation energies were calculated as functions of the Pt/Ag ratio. Results are compared and discussed in terms of the structural and electronic features of the active metallic phase.

引用

页码：169 / 179

页数：11

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