BIMETALLIC CATALYSTS DERIVED FROM HETERONUCLEAR CLUSTERS - CO HYDROGENATION AND OLEFIN HYDROFORMYLATION ON RH-MO/SIO2 CATALYSTS

被引：10

作者：

TRUNSCHKE, A

EWALD, H

MIESSNER, H

FUKUOKA, A

ICHIKAWA, M

BOTTCHER, HC

机构：

[1] HOKKAIDO UNIV,CATALYSIS RES CTR,SAPPORO,HOKKAIDO 060,JAPAN

[2] MARTIN LUTHER UNIV,DEPT CHEM,O-4010 HALLE,GERMANY

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1991年 / 29卷 / 1-4期

关键词：

D O I：

10.1016/0254-0584(91)90044-U

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Molybdenum-promoted Rh/SiO2 catalysts have been prepared from rhodium and molybdenum salts and from a heteronuclear Rh-Mo cluster as precursors. These catalysts have been compared with unpromoted Rh/SiO2 in CO hydrogenation and in ethene hydroformylation reactions. Mo promotes the CO hydrogenation both on salt- and cluster-derived catalysts, but the product distribution is different with a significantly enhanced selectivity to oxygenated products on cluster-derived samples. To test the CO insertion capability of the catalysts, ethene hydroformylation was performed under mild conditions (393 K-473 K, 0.1 MPa) and at CO hydrogenation conditions (473 K-573 K, 1 MPa). Only with the conditions of CO hydrogenation was it possible to show that the higher selectivity of the cluster-derived catalyst towards alcohols in the CO hydrogenation is due to the higher CO insertion capability of the cluster-derived catalyst.

引用

页码：503 / 508

页数：6

共 12 条

[1] BHORE NA, 1988, 9TH P INT C CAT CALG, V2, P594
[2] BRAUNSTEIN P, 1989, SPECTROCHEMISTRY ORG, P3
[3] CARIMATI A, 1988, 9TH P INT C CAT CALG, V2, P706
[4] BIMETALLIC CATALYSTS COMPRISED OF DISSIMILAR METALS FOR THE REDUCTION OF CARBON-MONOXIDE WITH HYDROGEN
FOLEY, HC
HONG, AJ
BRINEN, JS
ALLARD, LF
GARRATTREED, AJ
[J]. APPLIED CATALYSIS, 1990, 61 (02): : 351 - 375
[5] GUCZI L, 1986, METAL CLUSTERS CATAL, P547
[6] BIMETALLIC CLUSTER-DERIVED HETEROGENEOUS CATALYSTS HETERONUCLEAR 2-SITE ACTIVATION OF CO IN SYNGAS CONVERSION TO OXYGENATES
ICHIKAWA, M
[J]. POLYHEDRON, 1988, 7 (22-23) : 2351 - 2367
[7] CARBON-MONOXIDE HYDROGENATION OVER GROUP-VIII METALS SUPPORTED ON TUNGSTEN AND MOLYBDENUM TRIOXIDES
JACKSON, SD
BRANDRETH, BJ
WINSTANLEY, D
[J]. APPLIED CATALYSIS, 1986, 27 (02): : 325 - 333
[8] HYDROGENATION OF CARBON-MONOXIDE OVER RHODIUM SILICA CATALYSTS PROMOTED WITH MOLYBDENUM OXIDE AND THORIUM-OXIDE
KIP, BJ
HERMANS, EGF
VANWOLPUT, JHMC
HERMANS, NMA
VANGRONDELLE, J
PRINS, R
[J]. APPLIED CATALYSIS, 1987, 35 (01): : 109 - 139
[9] LAMBER R, UNPUB CATAL LETT
[10] SUDHAKAR C, 1987, CATALYSIS 1987, P115

← 1 2 →