... chemicalcompositions are 48.77 at% of O, 41.87 at% of Si,8.66 at% of V, 0.74 at% of Zn, and no Cl, for the catalysttip in Fig. 2(b), and 60.28 at% of O, 39.40 at% of Si,0.32 at% of V, and no Zn or Cl, ... typical SEM image of product found in region A. It canbe seen that the products synthes ized consist of a largenumber of curved SiOxnanowires with length of a few tens of micrometers. Fig. ... composition of the as-grown nanowires. Fig. 3(a) shows the EDXspectrum of the round tip on top of a nanowire (Fig. 2(b)),and Fig. 3(b) shows the EDX spectrum from long bundles of tangled silica...