Although the electronic band structure, electrical conductivity, optical properties, chromic effect, and photocatalytic properties of WOx as well as the respective changes induced by nanostructuring are well documented, there are still many fundamental issues that need to be addressed. For instance, the high carrier mobility observed for WOx nanowires requires thorough experimental confirmation, and it will be interesting to see computational modelling of the electronic behavior within the nanostructures of WOx