Figure 1From: Structural characterization of vanadium oxide catalysts supported on nanostructured silica SBA-15 using X-ray absorption spectroscopyV K edge χ(k) of dehydrated V x O y /SBA-15 with different vanadium loadings (2.7 wt %, 5.4 wt %, and 10.8 wt %) and reference NH 4 VO 3 .Back to article page