The synthesis and investigation of vertically aligned carbon nanotube (VACNT) based materials are gaining more-and-more interest among scientists due to their specific properties (e.g., electrical, optical, mechanical). Therefore, our interest for the present research has focused on
synthesis of WO3/VACNT based nanostructures (using carbon nanotube forests obtained by catalytic chemical vapor deposition—CCVD method on aluminum substrate) using different synthesis pathways and WO3 precursors. The obtained composites were investigated by scanning
electron microscopy (SEM), Raman spectroscopy, while the obtained crystal structures were characterized by X-ray diffraction (XRD). Results have shown that depending on the synthesis method, and using as template the carbonaceous structure, we can successfully obtain non-stochiometric tungsten
oxide (W18O49) or WO3 composites.