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Combined EXAFS and STEM-EELS study of the electronic state and location of Mn as promoter in Co-based Fischer-Tropsch catalysts

被引：73
作者：
Morales, F
Grandjean, D
de Groot, FMF
Stephan, O
Weckhuysen, BM
机构：
[1] Univ Utrecht, Debye Res Inst, Dept Inorgan Chem & Catalysis, NL-3584 CA Utrecht, Netherlands
[2] Univ Paris 11, Phys Solides Lab, F-91405 Orsay, France
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2005年 / 7卷 / 04期
关键词：
D O I：
10.1039/b418286c
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：
STEM-EELS and EXAFS have been used to investigate the location and electronic state of Mn as promoter in TiO2- supported cobalt Fischer Tropsch catalysts prepared by two different procedures. It was found that the extent of interaction between Mn and the active Co phase as well as the level of Mn dispersion over the TiO2 surface largely determine the enhancement of the selectivity in the Fischer Tropsch synthesis at pressures of 1 bar.
引用
收藏
页码：568 / 572
页数：5
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