THE PROMOTER FUNCTION OF MOLYBDENUM IN RH/MO/SIO2 CATALYSTS FOR CO HYDROGENATION

被引：13

作者：

SHEN, JY ^{[1
]}

MATSUZAKI, T ^{[1
]}

HANAOKA, T ^{[1
]}

TAKEUCHI, K ^{[1
]}

SUGI, Y ^{[1
]}

机构：

[1] AIST,NATL INST MAT & CHEM RES,TSUKUBA,IBARAKI 305,JAPAN

来源：

CATALYSIS LETTERS | 1994年 / 28卷 / 2-4期

关键词：

RHODIUM; MOLYBDENUM; OXYGENATES; HYDROGENATION; CO ADSORPTION;

D O I：

10.1007/BF00806063

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：

A series of Rh/Mo/SiO2 catalysts with fixed Rh and different Mo contents were studied by FT-IR, chemisorption and CO hydrogenation. The FT-IR results at room temperature under CO atmosphere indicate that the addition of Mo to Rh/SiO2 suppresses the linear and bridged CO species and promotes the twin CO species, which is consistent with the chemisorption results. It is suggested that the Mo promoter works via stabilization of Rh1+ ions and the coverage of Rh sites. The molybdenum promotes the formation of oxygenates and shifts the selectivity from hydrocarbons to oxygenates.

引用

页码：329 / 336

页数：8

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