Figure 4From: Facile Hydrogen Evolution Reaction on WO3NanorodsTEM images of WO3 obtained from tetrabutylammonium decatungstate at various pyrolysis time. (a) 2 h and (b, c) 3 h, (d) HRTEM image of a WO3 nanorods. Inset of Fig.4c Electron diffraction pattern of WO3 nanorodsBack to article page