Promotional effect of molybdenum, chromium and cobalt on a V-Mg-O catalyst in oxidative dehydrogenation of ethylbenzene to styrene

被引：23
|
作者：
Oganowski, W [1 ]
Hanuza, J [1 ]
Drulis, H [1 ]
Mista, W [1 ]
Macalik, L [1 ]
机构：
[1] POLISH ACAD SCI,INST LOW TEMP & STRUCT RES,PL-50950 WROCLAW,POLAND
来源：
APPLIED CATALYSIS A-GENERAL | 1996年 / 136卷 / 02期
关键词：
oxidative dehydrogenation; ethylbenzene; styrene; V-Mg-O catalyst; promotional effect;
D O I：
10.1016/0926-860X(95)00272-3
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：
The influence of molybdenum, chromium and cobalt on the oxidation state and redox processes in V-Mg-O catalyst is studied by means of X-ray diffraction and electron spin resonance spectroscopy. The results obtained are correlated with catalytic activity and selectivity. It is shown that molybdenum doping increases the selectivity and the chromium and cobalt doping improves the activity of the catalyst studied. The promotional effect of the dopants on the catalytic mechanism is discussed.
引用
收藏
页码：143 / 159
页数：17
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