COOPERATION BETWEEN MOO3 AND OTHER METAL-OXIDES IN SELECTIVE OXIDATION OF ISOBUTENE TO METHACROLEIN

被引：35

作者：

WENG, LT ^{[1
]}

MA, SY ^{[1
]}

RUIZ, P ^{[1
]}

DELMON, B ^{[1
]}

机构：

[1] CATHOLIC UNIV LOUVAIN,UNITE CATALYSE & CHIM MAT DIVISES,PL CROIX SUD 1,B-1348 LOUVAIN LA NEUVE,BELGIUM

来源：

JOURNAL OF MOLECULAR CATALYSIS | 1990年 / 61卷 / 01期

关键词：

Catalysis - Catalysts--Oxides - Molybdenum Compounds - Tellurium Compounds;

D O I：

10.1016/0304-5102(90)85198-Q

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 synergy is observed in the selective oxidation of isobutene to methacrolein when MoO3 is mixed mechanically with other metal oxides, either simple (Sb, Bi, Te) or binary (Cu-Sb, Bi-P, Zn-Fe, Ni-Mo, Co-Mo, Fe-Mo and Cu-Mo). In most cases, the effect can be explained by a remote control mechanism, namely the control of active sites of MoO3 through spillover oxygen emitted by the other phases. Roles of these admixed phases can be related to the ionicity of the bonds in their structure. The results strongly suggest that TeO2 behaves as an intermediate oxide, either as a donor when mixed with a strong acceptor or an acceptor when mixed with a strong donor. © 1990.

引用

页码：99 / 112

页数：14

共 38 条

[1] STRUCTURE AND ACTIVITY OF TELLURIUM-MOLYBDENUM OXIDE ACRYLONITRILE CATALYSTS [J].