Figure 3From: Structural characterization of vanadium oxide catalysts supported on nanostructured silica SBA-15 using X-ray absorption spectroscopyV K edge XANES spectra (a) and FT(χ(k)*k3) (b) of dehydrated V x O y /SBA-15 (10.8 wt %) (dashed on right side) compared to those of various references (i.e. NH 4 VO 3 , Mg 2 V 2 O 7 , Na 3 VO 4 , and Mg 3 V 2 O 8 ).Back to article page