Pretreatment-induced redox processes in molybdena-alumina metathesis catalysts

被引：9
|
作者：
Handzlik, J
Ogonowski, J
Dula, R
Stoch, J
Serwicka, EM
机构：
[1] Cracow Univ Technol, Inst Organ Chem & Technol, PL-31155 Krakow, Poland
[2] Polish Acad Sci, Inst Catalysis & Surface Chem, PL-30239 Krakow, Poland
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 2003年 / 79卷 / 01期
关键词：
ESR; metathesis; molybdena;
D O I：
10.1023/A:1024172020636
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 ESR investigation of MoO3/Al2O3 metathesis catalysts was carried out and the results interpreted in relation to the previous XPS study [1]. The increase of the Mo(V) signal upon treatment with argon was attributed to the oxidation of ESR-silent Mo(IV) centers. The enhancement of Mo(V) signal upon exposure to propene at 303 K was assigned to the reduction of Mo(VI).
引用
收藏
页码：135 / 141
页数：7
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