Synergy effects between bismuth molybdate catalyst phases (Bi/Mo from 0.57 to 2) for the selective oxidation of propylene to arcrolein

被引：40

作者：

Le, MT

Van Well, WJM

Stoltze, P

Van Driessche, I

Hoste, S

机构：

[1] State Univ Ghent, Dept Inorgan & Phys Chem, B-9000 Ghent, Belgium

[2] Hanoi Univ Technol, Dept Petrochem, Hanoi, Vietnam

[3] Aalborg Univ, Dept Chem Engn, DK-6700 Esbjerg, Denmark

来源：

APPLIED CATALYSIS A-GENERAL | 2005年 / 282卷 / 1-2期

关键词：

bismuth molybdates; synergy effect; spray drying; selective oxidation; propylene; catalytic activity;

D O I：

10.1016/j.apcata.2004.12.010

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：

In this work, the synergy effect between different phases of bismuth molybdate catalysts was investigated systematically. The catalysts were prepared by spray drying and had a Bi/Mo atomic between 0.57 and 2. It is found that the synergy effect is only observed in mixtures containing gamma-phase. A mixture with Bi/Mo ratio = 1.3 consisting of gamma- and alpha-phase, exhibits the highest activity. Less homogeneous 'artificial mixtures' exhibit reduced synergy effects when compared to homogeneous 'in situ mixtures'. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：189 / 194

页数：6

共 15 条

[1] COOPERATION BETWEEN THE ALPHA AND GAMMA PHASES OF BISMUTH MOLYBDATE IN THE SELECTIVE OXIDATION OF PROPENE [J].