“…S7b, ESI †). 33,34 From the analyses, it can be concluded that WT200 includes the combination of three crystal phases, where the highly crystalline phases of WOCl 3 and WO 2 Cl 2 dominate over the poor crystallinity of W 18 O 49 . The presence of WOCl 3 and WO 2 Cl 2 in WT200 indicate the incomplete conversion from WCl 6 to W 18 O 49 , whereas the complete conversion occurred at 400 1C.…”