Investigation of silica-supported vanadium oxide catalysts: preparation and characterization by vanadium-51 NMR and x-ray photoelectron spectroscopy

1988 ◽  
Vol 92 (23) ◽  
pp. 6700-6705 ◽  
Author(s):  
B. Taouk ◽  
M. Guelton ◽  
J. Grimblot ◽  
J. P. Bonnelle
Keyword(s):  
Vanadium Oxide ◽  
Photoelectron Spectroscopy ◽  
Oxide Catalysts ◽  
X Ray ◽  
Catalysts Preparation

Physicochemical and Catalytic Properties of Spinels Formed by Solid-Solid Interaction Between Fe2O3and V2O5

1996 ◽  
Vol 61 (8) ◽  
pp. 1131-1140 ◽  
Author(s):  
Abd El-Aziz Ahmed Said
Keyword(s):  
Vanadium Oxide ◽  
Active Sites ◽  
Catalyst Surface ◽  
Catalytic Properties ◽  
Flow System ◽  
Oxide Catalysts ◽  
X Ray Diffraction ◽  
Selective Catalyst ◽  
X Ray ◽  
Solid Catalysts

Vanadium oxide catalysts doped or mixed with 1-50 mole % Fe3+ ions were prepared. The structure of the original samples and those calcined from 200 up to 500 °C were characterized by TG, DTA, IR and X-ray diffraction. The SBET values and texture of the solid catalysts were investigated. The catalytic dehydration-dehydrogenation of isopropanol was carried out at 200 °C using a flow system. The results obtained showed an observable decrease in the activity of V2O5 on the addition of Fe3+ ions. Moreover, Fe2V4O13 is the more active and selective catalyst than FeVO4 spinels. The results were correlated with the active sites created on the catalyst surface.

Redox Behavior of Vanadium Oxide Nanotubes As Studied by X-ray Photoelectron Spectroscopy and Soft X-ray Absorption Spectroscopy

2003 ◽  
Vol 15 (16) ◽  
pp. 3227-3232 ◽  
Author(s):  
Sara Nordlinder ◽  
Andreas Augustsson ◽  
Thorsten Schmitt ◽  
Jinghua Guo ◽  
Laurent C. Duda ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Absorption Spectroscopy ◽  
Photoelectron Spectroscopy ◽  
Redox Behavior ◽  
X Ray ◽  
X Ray Absorption ◽  
Vanadium Oxide Nanotubes
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