NEW UNSUPPORTED [100]-ORIENTED MOO3 CATALYSTS .2. CATALYTIC PROPERTIES IN PROPYLENE OXIDATION

被引：33

作者：

ABON, M ^{[1
]}

MASSARDIER, J ^{[1
]}

MINGOT, B ^{[1
]}

VOLTA, JC ^{[1
]}

FLOQUET, N ^{[1
]}

BERTRAND, O ^{[1
]}

机构：

[1] FAC SCI MIRANDE,RECH REACTIV SOLIDES LAB,F-21004 DIJON,FRANCE

来源：

JOURNAL OF CATALYSIS | 1992年 / 134卷 / 02期

关键词：

D O I：

10.1016/0021-9517(92)90341-E

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：

Part I (B. Mingot et al., J. Catal. 118, 424, 1989) described the preparation and characterization of new unsupported [100]-oriented MoO3 catalysts. In this second part, the catalytic properties of a series of these catalysts have been compared with more conventional vapor-grown MoO3 samples in the propylene oxidation reaction. This study confirms the structure sensitivity of this reaction: the exposed (120) faces, more developed on the [100]-oriented MoO3 crystallites, lead nearly exclusively to acrolein, whereas the basal (010) planes are active in total oxidation. The selectivity for acrolein formation on the (120) faces has been related to the atomic structure of such faces characterized by the presence of dual sites. © 1992.

引用

页码：542 / 548

页数：7

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