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A series of V 2 O 5 /Nb 2 O 5 catalysts with vanadia loading varying from 2 to 12wt.% were prepared and characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), temperature programmed reduction (TPR), BET surface area and oxygen chemisorption at 640K. The catalytic properties have been evaluated for vapor phase ammoxidation of 3-picoline to...
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