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Vanadium oxide grafted on mesoporous silica SBA-15 has been synthesized using a controlled grafting process. Its structure has been thoroughly investigated using different characterization techniques, including N 2 -physisorption, X-ray diffraction, transmission electron microscopy (TEM), Raman spectroscopy, H 2 temperature-programmed reduction, X-ray absorption near-edge structure...
The methanation of carbon dioxide was carried out over Ni-incorporated MCM-41 catalysts. The Ni-MCM-41 catalysts containing 1–3 wt% Ni were prepared by incorporating the Ni ions into the framework of siliceous MCM-41 with the procedure developed in our previous work [S. Lim, G.L. Haller, J. Phys. Chem. B 106 (2002) 8437]. Pretreatment using pure H 2 at different temperatures affected the reactivity...
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